Motorola 17K2E User manual

Motorola
Brand
Motorola
Model
17K2E
Type
User manual

This manual is also suitable for

SERVICE MANUAL
17K1E 17K2E
GENERAL INFORMATION
RECEIV ER MODEL, BREAKDOWN CHART
M odel
Type of R eceiver
17K1E
Console,
re d -brn m ahogany
17K1BE C onsole,
lim ed oak
17K2E C onsole,
red -b rn m ahogany
17K2BE
C onsole,
lim ed oak
C -
CHASSIS - T elevision ch assis TS-172 is built around a 17"
rectangular picture tube. The picture, sound,
and scanning circu its, together with a conven
tional transform er type "B " supply, are con
tained on a single ch assis.
TUNING RANGE - Channels 2 through 13
11, 12 & 13IF FREQ - Channels 2, 3, 4, 5, 6,
Sound: 21.9 me
P ictu re: 26 .4 me
Channels 7, 8, 9 & 10
Sound: 27.3 me
P ictu re: 22. 8 me
ANTENNA - T A -6 "B ilt-In -T en na". P rovision s for connec
tion of an external antenna.
ANTENNA IMPEDANCE - 300 ohm s
CHASSIS
TS-172
MODELS
I7K1E
17K1BE
I7K2E
17K2BE
POW ER SU PPLY - 117 volts, 60 cy cle AC curren t only
POW ER CONSUMPTION - 205 watts
AUDIO OUTPUT - 4 watts
CHASSIS TU BE CO M PLEM ENT -
Ref.
No.
Tube
Function
V -l
i
6CB6
RF A m p lifier
V -2 12AT7
M ix e r-O scilla tor
V -3
6AU 6/6AG 5
1st IF A m plifier
V -4
6AU 6/6AG 5 2nd IF Am p lifier
V -5
6 AG 5
3rd IF A m plifier .
V -6
6AL5 or
1N60 xtal
Video D etector
V - 7
6AH6 or
6C B6/6B C5 Video Am plifier
V -8
6AU 6/6A G 5
Audio D rive r-L im ite r
V -9
6AL5
Ratio D etector
V -10
6J5/G T
Audio A m plifier
V -ll
6V 6/G T
Audio Output
V -l 2
6SN7GT 1st & 2nd C lippers
V -l 3
12AU7 or
6SN7GT
V ertica l Sw eep Generator
V - 14
6W6GT or
6 AS 5
V ertica l Sweep Output
V - 1 5
6AL5 or
6H6
Phase D etector
V -16
6SN7GT
H orizontal O scilla tor
V - 1 7
6BQ6GT
H orizontal Output & High
Voltage G en erator
V -18
6W4GT
Dam ping Diode
V-19
1B3GT
High Voltage R ectifier
V -20
17BP4 or
17AP4
Pictu re Tube: rectan gular
V-21 5U4G
Low Voltage R ectifier
HIGH VOLTAGE WARNING
Operation of this re ce iv er, outside its cabinet or with
cov e rs rem oved, involves a sh ock hazard from the pow ef
su pplies. No w ork should be attempted on this re ceive r by
anyone not thoroughly fa m iliar with the precautions n e c e s
sary when working on high voltage equipm ent.
CATHODE RAY PICTURE TUBE HANDLING PRECAUTIONS
Extrem e care m ust be used in handling the picture tube*
The tube is highly evacuated and, due to its large size, is
subjected to a con sid erable atm osph eric p re ssu re. The
handler should wear safety goggles and gloves for p ro te c
tion. Avoid nicking or scratch ing the glass by rough contact
with other ob jects.
4545 AUGUSTA BOULEVARD
B efore rem oving glass tubes, disch arge the capacity
form ed by the inner and outer aquadag coatings on the tube
by shorting the anode contact on the side of the tube to the
outer surface with a w ell insulated piece of w ire.
CHICAGO 51, ILLINOIS
PART NO. 54P70217 4
Price 15 Cents
PRINTED IN U. S. A.
Scanned by mbear2k - Jan 2012
INSTALLATION AND OPERATING INSTRUCTIONS
RECE IVER LOCATIONS
The re ce iv er m ay be placed anywhere in the room , but
for greatest satisfaction it should be located.
1. Away from any bright light that m ay fa ll directly on the
screen or be reflected from it; this includes windows and
lam ps. Som e illum ination in the room , off to one side, is
d esirable, how ever, to prevent eye-stra in .
2. T o provide com fortable view ing and ease of operation .
3. At least on e-inch away from a wall to allow for cabinet
ventilation. This is very im portant.
ANTENNAS
The ch oice of television antenna depends entirely on the
location of the re ce iv e r with resp ect to all television station
transm itting antennas in the area. M aximum pick-up is ob 
tained when the receivin g antenna is d irectly in line of sight
with the transm itting antenna.
"B ilt-In -T en n a". All re ceiv ers using theT S-172 series
television ch assis are equipped with the M otorola "B ilt-In -
Tenn a", m ounted inside the cabinet, for use in good signal
areas.
to receive stations on channels of w idely separated frequ en
cie s.
Location of the antenna should be decided from the stand
point of m aximum signal pick-u p . In gen era l, the antenna
should be broadside to the transm itting antenna and should
be as high as possible. If a r e fle ctor is used, the antenna
should be oriented so that the d river elem ent is closest to
the station and the reflector farthest away.
Locating the antenna and lead -in as far away as possible
from highw ays, h ospitals, d octors' o ffice s, ele ctrica l m a
chinery, etc. , w ill help to reduce noise pick-u p from such
sou rces. A lso, it is desirable to keep the antenna at least
six feet away from other antennas, m etal ro o fs, gutters, or
other m etal objects to prevent unwanted reflection s and
shielding.
Lead-In. Since the TS-172 ch assis is designed for 300
ohm input, the standard 300 ohm twin lead line should be
used for connecting the outside antenna to the re ce iv er.
Tw isting the line one com plete turn per foot of running length
helps to reduce noise pick -up on the line. The lea d-in
should be supported on stan d-off insu lators and kept tight
enough to prevent m ech anical dam age through swaying.
Avoid running the lea d -in clo se to m etal gutters, iron
standpipes, etc.
When this antenna is used, the follow ing precautions
should be observed for best reception :
1. In order to get m axim um perform ance and sa tisfa ctory
pictures from the "B ilt-In -T en na ", am ple signals from the
television station must be present at the loca tion of the r e 
ce iv e rs. N orm ally, the strength of the signals w ill vary
throughout the room in which the receiv er is located. F or
this reason, better pictures w ill be obtained if the re ceiv er
is tried in all possible location s in the viewing room and is
then placed where the clea rest pictures are re ceiv ed from
all stations. A void large m etallic objects, such as radia
tors, m etal panels, etc.
2. L am ps, vases and m etallic ob jects, when placed on top
of the rece iv er, m ay affect the efficien cy of the "B ilt-In -
T enna".
Indoor Antenna. If additional pick -up is n ecessa ry, an
indoor antenna, placed on or near the re ce iv e r, m ay be
used. The antenna should be rotated and the arm s should
be adjusted for the best signal, with no ghosts or r e fle c
tions. N orm ally, the arm s should be extended on the low
channels (2 -6 ) and telescoped on the high channels (7-13).
Outdoor Antenna. The M otorola "B ilt-In -T en na " or the
indoor type antenna w ill give sa tisfactory reception in strong
signal areas; but, if the rece iv er is located in a fringe or
weak signal area, an outdoor antenna is recom m en ded.
In areas free of obstructions and reflection s, within re a
sonable proxim ity to television tran sm itters, a dipole and
re flecto r will prove sa tisfa ctory. Since such an antenna has
a rela tively sm all band cov era ge, a sp ecial antenna covering
all twelve television channels should be used if it is desired
In very strong signal area s, or w here sev ere local in
terferen ce is encountered, 300 ohm shielded twin lead is
recom m ended. The shield braid should be grounded.
An approved lightning arrestor should be used.
RECE IVER ANTENNA CONNECTION
The antenna lead -in to the television re ceive r is con
nected to the two screw s of the term inal strip on the rear
of the cabinet. D isconnect the "B ilt-In -T en n a " leads from
the term inal strip before attaching an external antenna lead -
in. Som etim es, rev ersin g the lead -in connections at the r e 
ceiv er may im prove picture quality and o v erall perform an ce.
OPERATING CONTROLS
There are two dual con trols, consisting of a sm all and
a large knob each, on the front panel of the r e ce iv e r. See
Figure 1 for front panel control functions.
FIGURE I. OPERATING CONTROLS
SERVICE ADJUSTMENTS
The receiv er is com pletely adjusted at the factory, so
norm ally none other than the front panel con trol operating
instructions need be follow ed inputting the re ceive r in op er
ation. H ow ever, to provide for any m isadjustm ent of the
service con trols, due to handling, the follow ing instructions
are in ord er. See Figure 2 for location of the s e rv ice ad
justm ent con trols.
2
Scanned by mbear2k - Jan 2012
FIGURE 2. SERVICE ADJUSTMENT CONTROLS
FOCUS CONTROL
The FOCUS con trol should be adjusted until the fine h or
izontal line stru ctu re of the raster is clea rly visible over
the picture area. The con trol should be turned through the
co rr e ct point several tim es so that optimum focu s is o b 
tained.
CENTERING
By m eans of a lever extending from the focu s c o il, thru
the rear screen , the focu s co il can be shifted to center the
pictu re in its m ask.
VE R TIC AL SIZE AND VE R TIC A L LINEARITY
Adjust the VE R TIC AL SIZE control until the picture fills
the m ask vertica lly . A djust the V ERTICAL LINEARITY
con trol for best overall v ertica l linearity. Adjustm ent of
the VERTICAL SIZE con trol will requ ire a readjustm ent of
the VERTIC A L LIN EARITY con troland p o ss ib ly of the V ER
TICAL HOLD control. Center picture with the centering
lever on the focus coil.
HORIZONTAL SIZE
Adjust the HORIZONTAL SIZE lev er until the picture
fills the m ask h orizon tally. C enter picture with the cen 
tering lev e r.
HORIZON TAL OSCILLATOR ADJUSTMENT
The H ORIZONTAL HOLD con trol should have a sync
range of approxim ately 180 d egrees. If the control is too
critica l, adjust as follow s:
1. Short out HORIZON TAL OSCILLATO R co il L -2 3. This
m aybe done with the ch assis in the cabinet by shorting pins
3 & 8 of the test sock et on ch assis rear.
2. With the centering le v er, m ove the picture to the left so
that the right edge of the raster can be seen. Adjust the
HORIZONTAL HOLD control to about the m iddle of its range
andnote the width of the blanking pulse. (The blanking pulse
appears as a gray bar at the right edge of the pictu re).
3. R em ove short from HORIZON TAL O SCILLA TO R co il.
4. Adjust HORIZO N TAL OSCILLATOR co il until the sam e
amount of blanking pulse can be seen as was noted in step 2.
VER TIC A L HOLD ADJUSTM ENT
Adjust the V ERTIC A L HOLD con trol for the center of
the v ertica l sync lock -in range.
BRIGHTNESS
Adjust the BRIGHTNESS con trol, in com bination with
the CONTRAST con trol for the m ost pleasing pictu re. K eep
the brilliance slightly below m axim um , how ever, in ord er
to protect the flu orescen t screen of the picture tube and to
prevent poor picture detail.
ADJUSTM ENT OF ION T RA P
Under conditions of rough shipm ent, it is possib le for
the ion trap to becom e m isaligned. To prevent serious dam 
age to the picture tube, the follow ing m ethod of adjustm ent
should be used. See F igu re 3.
The m agnet should be placed on the neck of the tube in
the direction indicated by the m arking on the magnet (usu
ally an arrow which points tow ard the picture tube screen)
so that the stron ger magnet of the double m agnet type or the
only magnet in the single m agnet type is positioned over the
internal pole p ieces which are mounted on the gun structu re.
Adjust the BRIGHTNESS control for low intensity and m ove
the m agnet a short distance forw ard and backward at the
sam e tim e rotating it to obtain the brightest raster. If, in
obtaining the brightest raster, the ion trap magnet has to be
m oved m ore than 1/4 " from the gun pole p ieces the m agnet
is probably weak and a new m agnet should be tried. N ever
co rrec t for a shadowed ra ster with the ion trap magnet if
3
Scanned by mbear2k - Jan 2012
FIGURE 3. PICTURE TUBE ADJUSTMENT LOCATIONS
such co rrection results in d ecrea sed brightness. The ion
trap magnet must always be adjusted for m aximum brigh t
ness and if shadows occu r at this setting they should be
elim inated by adjusting the focus and deflection co ils as ex 
plained under "F ocu s C oil and D eflection Yoke A djustm ent1'.
CAUTION: Keep BRIGHTNESS con trol at low intensity
until ion trap is p rop erly set.
A m irror placed in front of the receiv er w ill aid in m ak
ing this adjustm ent.
DEFLECTION YOKE ADJUSTMENT
If the deflection yoke sh ifts, the picture w ill be tilted.
To c orr e ct, loosen the thum bscrew on top of the deflection
yoke and rotate yoke until the picture is straight. B efore
tightening the thum bscrew , m ake certain that the d eflection
yoke is as far forw ard as possib le.
If the yoke support and the picture tube have shifted in
transit, or if fo r any reason these parts have been rem oved
and replaced, it is best to do a com plete job of reposition
ing. See Figure 3. The starting point is the position of the
picture tube. It should be adjusted so that the distance from
the center of the tube face to the front edge of the ch assis is
1-1/16". The clam p on the front of the tube should then be
tightened. The picture tube rear support bracket position
ing adjustm ent screw s should be loose enough to perm it
sliding the brack et forw ard until the rubber cushion fits
snugly up against the flare of the tube. L oosen the yoke ad
justm ent thum bscrew and push the yoke up against the flare
of the tube. CAUTION: Do not use force in sliding the
brack et up. If to much force is used, a strain w ill be
placed on the neck of the tube when the support bracket
positioning adjustment screw s are tightened. A lso the yoke
m ay be force d out of position. The opening in the yoke
should be con cen tric with the neck of the tube.
FOCUS COIL
The focu s co il should be positioned so that it is spaced
l / 4 " from the d eflection yoke when parallel with the yoke.
The opening in the focu s c o il should be con centric with the
neck of the tube. The spacing should be adjusted before the
front of the picture tube is clam ped down because it is n ece s
sa ry to rem ove the tube to change the position of the focus
co il. Its position is changed by ch oice of location of the co il
mounting studs in the scallop ed holes on the top and bottom
of the co il m ounting bracket. The opening in the focus co il
can be made con cen tric with the neck of the tube by lo osen 
ing the nuts on the studs which support the focus co il b r a ck 
et and turning the studs with a screw driver in the slots p ro
vided. The studs are eccen tric and m ove the coil both v e r
tically and horizontally. They should be used only to center
the neck of the tube in the opening of the co il.
TEST SOCKET
A test socket is provided on the rear of the ch assis
which allow s adjustm ent of the h orizontal oscillato r and
checking of sen sitivity without rem oving ch a ssis from ca b i
net. See F igu re 2 for socket conn ection s.
ALIGNMENT
g e n e r a l
The ch assis should be mounted on angle iron brackets
(M otorola Part Num ber 7X700210) so that all conn ections
and adjustm ents m ay be made easily.
Since the power cord circu it is broken by the interlock
when the cabinet back is rem oved, it w ill be n e cessa ry to
obtain an extra pow er cord with the fem ale interlock r e ce p 
tacle in order to make a pow er con n ection to the receiv er.
O rder M otorola P art No. 30B470756.
4
Scanned by mbear2k - Jan 2012
A com plete re ceiv er alignm ent can be m ost conveniently
perform ed in the follow ing ord er:
1. Audio T ake-O ff & Ratio D etector
2. 4. 5 Me Trap
3. IF C oils & M ixer T ra n sform er
ORDER OF ALIGNMENT
3. F rom either side of capacitor C -52 , connect an e le c
tronic voltm eter to ch assis decoupled thru 10K ohm s.
4. Set the contrast control for m aximum gain (fully clo ck 
w ise).
5. Peak L -20 for m aximum reading on m eter.
6. Peak T -3 prim ary (top co re ) for m aximum reading on
m eter.
4. O sc & RF Sections
7. M ove the m eter and decoupling re s isto r from C-52 to
junction of R-41 and lead to volum e control.
AUDIO TA K E -O FF & RATIO DETECTOR ALIGNMENT
Equipment Required:
AM Signal G enerator: A ccu ra tely calibrated at 4. 5 me
(Optional) Adjustable output
DC M eter: Low range electron ic voltm eter
R efer to F igure 4 for location of adjustm ents.
1. If possible it is d esirable to align the audio section from
an actual station signal, since the 4. 5 me alignm ent fr e
quency will be exact. The fine tuning trim m er should be
turned of the station slightly, to prevent overloading the
ratio detector.
2. If a signal generator is used, tune it accu rately to 4. 5
me and adjust the output to approxim ately 10,000 m icr o 
volts. Connect the high side of the signal generator through
a 1000 m m f ca p acitor to the grid (pin 1) of the video am p li
fier tube V -7 , and the low side to ch a ssis. The follow ing
applies whether the. station signal or signal generator is
used.
8. Adjust T -3 secondary (bottom core ) for zero resp on se
on the low est scale of the m eter. This corresp on ds to the
cr o ss -o v e r point on the FM detector cu rve. If desired , the
sym m etry of the curve m ay be checked by tuning the g e n er
ator ± 2 5 kc fro m 4. 5 m e and noting the voltage produced,
rev ersin g the m eter conn ections as n ecessa ry. F or proper
balance of the ratio d etector system , the voltage in each d i
rection should be approxim ately equal. If not, ch eck the
tuning of L -20 and the prim ary & secondary of T -3 , the
ratio d etector. If nece ssa ry, replace the ratio detector tube
V -9 (6AL 5). The generator m ay be calibrated by tuning the
secondary of T -3 to zero on a station signal and tuning the
generator to the sam e zero resp on se, noting whether it in 
dicates 4. 5 m e.
NOTE: As the adjustm ents are brought to reson a n ce, it is
advisable to reduce the signal generator output to prevent
overloading.
With a 10,000 m icrovolt signal fed into the grid of the
video am plifier tube, and the contrast control turned fully
clock w ise, the voltage read from one side of capacitor C -52
to chassis should be greater than 5. 0V.
NO. TYPE
FUNCTION
V-l
6C86
R-F AMP.
V-2
I2AT7
MIXER-OSC.
V-3
6AU6/6AG5
1 ST. IF AMP.
V-4
6AU6/6AG5
2 ND. IF AMP,
V 5
6AG5
3 RD. IF AMP
V 6
6AL5 VIDEO DET.
V-7
6AH6/6CB6
VIDEO AMP.
V-8
6AU6/6AG5
AUDIO DRIVER LIMITER
V-9
6AL5
RATIO DET.
V-IO 6J5GT
AUDIO AMP.
V-ll
6V6GT
AUDIO OUTPUT
V-12 6SN7GT
1 ST. a 2ND. CLIPPER
V-13 I2AU7/6SN7GT
VERT SWEEP GEN.
V-l 4 6W6GT/6AS5
VERT. SWEEP OUTPUT
V-15
6AL5/6H6
PHASE DET.
V-16 6SN7GT
HORIZ. OSC.
V-17 6B06GT
HORiZ. OUTPUT a H.V. GEN.
V-18
6W4GT
DAMPING DIODE
V-19 IB3GT H.V. RECT.
V-2!
5U4G
L.V. RECT.
*1N60 CRYSTAL USED IN PLACE OF V-6 IN SOME SETS.
-FINE TUNING
-CHANNEL SELECTOR
POWER SWITCH a
VOLUME
^ ANTENNA
INPUT
©
C-6
R'F
TRIMMER
©
MIXER l-F
C&(PRI - TOP)
v>l2 (SEC-BOT)
sosc
TOP VIEW
OF CHASSIS
©
-L-I5
L -l l (TOP) L-I2 (BOT.)
(TOP) L-I4 (BOT)
Cgp2ND. I-F LOW TRAP
©
RATIO
0ET ( O )
(PRI. T 0 P )V V
fSFr. arm
• V -|9|
l I
r1-------
L-'8 jx, L-20
4.5 MCHjP S!P s ound t a k e - o ff
TRAP
“ S ? - ! f v -16
^is)
T-8
GET NO 69C70I993-0
FIGURE 4. TUBE AND ALIGNMENT ADJUSTMENT LOCATIONS
Scanned by mbear2k - Jan 2012
7. Tune the high frequen cy trap L-12 located on the 1st IF
co il for m aximum attenuation on the curve at 27. 3 m e.
8. Adjust the 1st IF co il, L - ll , to place a 26 .6 m e m arker
on the high side of the response curve 60% down from m ax
im um respon se. See Figure 6.
9. Adjust the 2nd IF coil, L -15, to place a 22. 7 me m arker
on the low side of the respon se curve 6 0 down from m axi
mum respon se.
10. Adjust the 3rd IF plate transform er T -2 to provide a
flat top or sym m etrica l response curve.
11. R eset the traps (steps 6 and 7) and again check the IF
for prop er resp on se.
NOTE: It is suggested that the bias be rem oved for accurate
setting of the traps.
12. With bias applied, connect the sw eep between the grid
(pin 2) of the m ixer tube V -2A (12AT7) and chassis.
13. D isconnect the trim m er, C -14, in LC circu it in the
grid of the m ixer tube, or short the trim m er thru a 10,000
m m f cera m ic disc type to chassis.
14. B ring both co re s of the m ixer tra n sform er, T -l, s i
m ultaneously from the outside tow ards the center. The
half-w ay m arkers should be 26.4 me and 22 .9 m e.
NOTE: In aligning the three IF co ils, each coil is adjusted
individually, but when adjusting the p rim ary and secondary
of the m ixer tran sform er, the adjustm ents should be made
sim ultaneously. The important point to keep in mind is to
obtain a flat response curve with as m uch gain as possible.
The sides of the curve should be straight and as steep as
possible. Simultaneous adjusting of the prim a ry and s e c
ondary is the easiest way to obtain this result. The tran s
form er by itself is, in effect, tuned for the sam e pass band
as the three staggered circu its. See F igure 7. The only
difference in the ov erall w aveform should be that the sides
of the overall wave are steeper. Constant use of the 50%
m arkers (22. 9 me and 26. 4 me) should be resorted to,
since it is absolutely n ecessa ry to obtain the prop er curve.
A slight dip (not exceeding 10%) is p erm issib le in the m ixer
transform er response cu rve.
BANDWIDTH
The bandwidth may be determ ined by connecting an AM
generator to the m ixer grid. With the generator frequency
at 24. 6 m e, adjust the output for 1 volt reading on a VTVM
connected to pin 4 of test socket and ch a ssis. Double the
output of the generator. Now by tuning either side of 24. 6
me and noting the frequ encies at which the VTVM again
reads 1 volt, the 6 db bandwidth points are indicated. These
points should be 22.9 m e and 26. 4 m e. By watching the
m eter while tuning slow ly thru the band any serious peaks
or holes in the respon se can also be detected.
REGENERATION CHECK
After the above IF and m ixer transform er alignm ent has
been m ade, a check for regeneration in the IF am plifier
strip should be m ade. This is done by rem oving the battery
bias and observin g the output response curve on the o sc illo 
scop e, as taken between the picture tube cathode and ch a s
sis. The bandwidth m ay change with the bias rem oved but
should not change m ore than 0. 2 m e. Set the contrast co n 
trol to m aximum gain. D ecrease the input until the output
signal show s a m arked de crea se. Any regen eration present
w ill be indicated by sharp peaks on the o v erall resp onse
curve. The oscillator should be stopped, as d escrib ed
above, during this procedu re.
CAUTION: Do not inject too m uch m arker signal.
MIXER LC ADJUSTMENT
Reconnect bias rem oved for regeneration check. R e
place trim m er C-14 in LC circu it of m ixer grid or rem ove
10, 000 m m f cera m ic between trim m er and ch a ssis. Adjust
the trim m er so it is tuned to the center of the m ixer r e 
sponse curve. This is indicated by observing the effect of
the LC circu it on the m ixer response. In creasing the c a 
pacity of the trim m er and bringing the LC circu it from
above the IF range into the IF range, it w ill be noted that
the m ixer curve w ill pull down on the high side, straighten
out as the LC circu it approaches the m iddle of the range,
and pull down on the low side as the LC circu it approaches
the low end of IF range. The proper tuning point is that
point at which the m ixer curve straightens out. In effect,
the LC circu it is sim ilar to a ja ck co il when it is within the
IF range.
CAUTION: Tuning the LC circu it v e ry low wil cause
oscilla tion.
IF SENSITIVITY MEASUREMENTS
IF Stages Only
1. Rem ove the battery bias fro m 1st IF tube grid.
2. C onnect an AM signal generator, set at 24. 6 m e, thru
a blocking cap acitor of 5000 m m f, between ch a ssis and the
gr.d (pin 1) of the 1st IF tube V -3.
3. Connect an electro n ic voltm eter a cross the video d etec
tor load re sisto r R -28 (5600). Both leads fro m the m eter
should be decou pled with 100K ohm resisto rs.
4. 5iet the contrast control for m aximum sensitivity.
5. Stop the oscillato r tube by discon necting resisto r R -9
(1500) from the plate (pin 6) of tubeV -2 B (12AT7) or by su b
stituting another tube with pin 6 rem oved.
6. The signal requ ired to produce 1 volt (negative) above
contact potential on the m eter should be less than 700 m ic r o
volts.
M ixer & IF Stages
The prelim inary preparations are the sam e as for ch eck
ing the sensitivity of the IF stages except:
1. Connect the AM signal generator, set at 24. 6 m e, thru
a 5000 m m f capacitor, between ch a ssis and the grid (pin 2)
ri the m ixer tube V -2A (12AT7).
2. The signal required to produce 1 volt (negative) above
contact potential on the m eter should be less than 125 m ic ro
volts.
OSCILLATO R, ANTENNA AND RF ALIGNMENT
NOTE: The IF must be aligned before the RF section can
be p rop erly phased.
Equipment Required:
Sweep G en erator: Frequen cy range 40-220 m e; 10 me sw eep
7
Scanned by mbear2k - Jan 2012
width
Output constant and adjustable
Adjustable m arkers (m ark ers should be
calibrated occasio n ally by checking
against an accurate signal generator)
O scilloscop e : P referably one with a calibrated input atten
uator.
Signal G enerator: F requen cy Range 40 to 220 me
A ccu rately calibrated
AM m odulated, 400 cycle
FREQUENCY CHART
Chan
F requency
Picture
Sound
O scillator
2
54-60
55. 25 59. 75
81.65
3
60-66
61. 25
65. 75
87.65
4 66-72
67. 25
71. 75
93. 65
5
76-82
77. 25
81. 75
103.65
6
82-88
83. 25
87. 75
109.65
7
174-180 175. 25 179.75
152.45
8
180-186
181.25
185. 75
158.45
9
186-192
187. 25
191.75
164.45
10
192-198
193.25
197. 75
170.45
11
198-204
199.25
203.75 225.65
12
204-210 205. 25 209.75
231.65
13
210-216
211.25
215. 75
237. 65
ANTENNA & RF ALIGNMENT PROCEDURE
1. R em ove high voltage generator tubeV -17 (6BQ 6GT) from
its socket and substitute a 2500 ohm 25 watt resistor co n
nected from the B plus side of the fuse to ch a ssis. Stop the
oscilla tor by disconnecting R -9 (1500) from plate (pin 6) of
V -2B (12AT7).
2. Connect the sw eep generator across the antenna term i
nals on the ch assis with the antenna le a d -in rem oved. The
line fro m the sw eep generator should be as short as p o s si
ble.
3. Connect the oscillo scop e through a decoupling resisto r
of 150,000 ohm s, between the cathode (pin 3) of the m ixer
tube V -2 (12AT7) and chassis.
4. Short out the AGC circu it with a clip lead from the AGC
bus to ch assis.
5. R efer to F igure 4 for the RF trim m er location and to
Figu re 8 for the locations of the antenna and RF co ils. The
frequency chart listed previou sly gives the channel and
alignm ent frequ en cies.
6. The antenna coils are tuned to the video ca rrie r fr e 
quency and the RF co ils are tuned to the sound ca rrie r s.
Figu re 9 shows the shape of the curve which should appear
on the scope for channels 2-6 and Figure 10 the curves for
channels 7-10 and 11-13.
7. Turn the station selector switch to channel 10. Set the
center frequ en cy of the sweep generator to the cen ter fr e
quency of channel 10 (195 m e).
8. A djust cera m ic trim m er, C -6 , so that picture and sound
m arkers are as in Figure 11.
9. Check channels 7 to 13 for prop er response and, if n ec e s
sary, tune the co ilL -6 . These co ils may be tuned by spread -
ingthem to decrea se inductance or com p ressing them to in
crea se their inductance. See Figure 8 for location of coils .
This w ill have m ore e ffect on channels 10 to 13 than'7 to 9.
If L -6 is adjusted, it m ay be n ece ssa ry to readjust RF trim
m er C -6 and rech eck the high channels.
10. M ove bandswitch to channel 6.
11. With center frequen cy of sw eep generator at the center
frequ ency of channel 6 (85 m e) introduce m arkers c o rr e s
ponding to sound and picture c a rriers and com pare with
curve of Figure 9.
NOTE: A convenient m ethod of determ ining whether a co il
is tuned co rrec tly is to insert a brass or iron slug into the
co il. B rass d ecre a se s and iron increases the inductance.
12. After channel 6 has been aligned, p rog ress downward
through channel 2.
CAUTION: Make certain the station selector sw itch is
on the c o rr e ct channel before checking band pass.
OSCILLATOR ADJUSTM ENT
1. Put oscilla tor back in circu it.
2. R em ove the short from the AGC circu it and apply a -3
volt battery bias to the AGC bus.
3. Move the scop e to the test socket on the ch assis rear
with the high side connected to pin 4 and the low side to
ch a ssis.
4. Set the con trast con trol at m inim um (cou n terclock w ise).
5. R em ove the fine tuning knob and turn shaft until the slot
is in a horizontal position. This rep resen ts the m id -cap acity
position.
6. Turn station selector sw itch to channel 12.
7. Set the sw eep generator on channel 12 with a center fr e 
quency of 207 m e and at least a 12 me sw eep. K eep the out
put low enough to show no evidence of lim iting in the overall
response cu rve.
NOTE: B efore aligning the oscilla tor section , make certain
that L -8 (3. 3 m icroh e n ries) in the m ixer grid is d ressed
away from C-16 (2 m m f) tied to the sam e grid.
8. Introduce a m arker corresp ond in g to the sound ca rrier
of channel 12 (209. 75 m e).
9. Adjust C-12 o scilla tor cera m ic trim m er so that the
sound m arker fa lls into the 21.9 me trap dip in the response
cu rve.
10. Turn generator and station se lector to channel 9 with
the fine tuning shaft slot still in the h orizontal position.
11. Spread or co m p ress the 3 -turn coil located in the ce n 
ter of the o scilla tor plate (L -4M , Figu re 8) so that the sound
m ark er for channel 9 falls into the 27. 3 m e trap dip in the
response cu rve. As the oscilla tor is tunedbelow the ca rrie r
on channels 7, 8, 9, 10, the 27. 3 me trap w ill be in the sam e
position as the 21. 9 m e trap in step 9.
12. Repeat steps 6, 7, 8 & 9.
13. Turn generator and station se lector to channel 13.
14. Turn fine tuning trim m er so that the sound m arker for
channel 13 falls into the 21. 9 me trap dip of respon se cu rve.
The slot in the fine tuning shaft should not have m oved m ore
than 30 degrees from the horizon tal position to accom p lish
Scanned by mbear2k - Jan 2012
this (each number on the station selector knob represen ts
30 d e gr e e s .)
15. If m ore than a 30 degree change in fine tuning trim m er
was needed in step 14, adjust channel 13 oscillator c o il
(L -7 ) by spreading or com p ressing until the 30 degree r e
quirem ent is m et.
NOTE: Each adjustment of channel 13 oscillator coil will
necessitate a re-ch eck in g of the oscilla tor trim m er C-12
on channel 12 as per steps 6, 7, 8 & 9.
16. Check channels 12, 11, 10, 9, 8, and 7 by noting whether
the fine tuning trim m er can drop the sound m arker for each
channel in the trap dip by a 30 degree rotation. If one of the
channels does not m eet the 30 degree requirem ent, a co m
prom ise m ust be made by resetting channel 9 or 12, w hich
ever is clo ser to the channel in question.
Exam ples:
1. If channel 11 does not m eet the 30 degree re q u ire
m ent, return station selector and generator to chan
nel 12 and tune cera m ic trim m er C-12 toward chan
nel 11 (trim m er frequ encies low ered by tightening
screw ). This w ill tend to m ove channel 12 sound
m ark er out of the trap dip, but this can be com pen
sated for by the fine tuning trim m er. Do not adjust
trim m er any m ore then is necessa ry to get the chan
nel in question back within the 30 d egree req u ire
ment.
2. If channel 10 does not m eet the 30 degree re q uire
ment, m ove station selector and generator to chan
nel 9 and tune the 3-turn co il (L -4 M , F igu re 8)
toward channel 10 (c o il freq raised by spreading
turns). This w ill also tend to m ove channel 9 sound
m arker out of the trap dip, but this can be com pen
sated for by the fine tuning trim m er. A gain, do not
adjust the coil any m ore than is n ecessa ry to bring
the channel in question back within the 30 d egree r e 
qu irem ent.
17. Tilrn sw eep generator and station s e lector switch to
channel 6.
18. Adjust channel 6 o scilla tor coil (L .-4E, Figure 8) so
that the sound m arker for channel 6 falls into the 21.9 me
trap dip with the fine tuning trim m er at m id-cap a city (shaft
slot in horizontal position ). Always spread or com press
channel 6 o scilla tor co il in units of 3 turns. C om pressing
turns w ill m ove cu rve toward sound m ark er, w hile spread
ing w ill m ove cu rve tow ard video m ark er.
IM PORTA N T: Since the co ils are in s e r ie s, the proper
alignm ent of channel 6 w ill sim p lify the phasing of the chan
nels to follow .
19. Adjust channels 5 and 4 so that the sound m arker for
each channel falls into the 21.9 m e trap dip in the curve with
the fine tuning trim m er set no m ore than 15 degrees from
m id-cap a city.
20. Channels 3 and 2 should be adjusted so that the sound
m arker fa lls into the 21. 9 m e trap dip with the fine tuning
trim m er within 15 degrees of m axim um capacity.
CHANNELS 2 TO 6
S
----
SOLID LINE INDICATES OPTIMUM
RESPONSE.
— DOTTED LINES INDICATES
PERMISSIBLE VARIATION.
FIGURE 9. RF RESPONSE CURVES CHANNELS 2-6
CHANNELS 7 TO 13
FIGURE 8.
ANTENNA, RF AND OSCILLATOR COIL LOCATIONS FIGURE 10. RF RESPONSE CURVES CHANNELS 7-13
L-5B
CHANNEL 5
CHANNEL 7
L-2
L-5A
CHANNEL 4
CHANNEL 3
CHANNEL 2
ANT. SECT.
-2A
L-2B REAR VIEW OF
L-2C OSC. SECTION
L-4C L-4M
9
Scanned by mbear2k - Jan 2012
OVER A LL RECE IVER SENSITIVITY MEASUREMENT
An overall m easurem ent of sensitivity is m ade as fo l
low s:
1. Connect an AM signal generator to the input term inals
of the re ceiv e r ch assis after rem oving the short 300 ohm
lead which conn ects to the antenna input strip on the back of
the cabinet. To m atch the generator to the re ceive r input,
a resistive m atching network should be used. In the case of
a generator with a 50 ohm output im pedance, for exam ple,
place a 100 ohm re sistor in series with the output term inal
of the generator and a 150 ohm re sisto r in series with the
ground term inal.
2. F rom cathode of picture tube to ch assis connect a ca li
brated oscillo s co p e.
NOTE: T o calibrate scop e, conn ect it a cro ss 6.3 volt fila 
ment supply. The p eak -to-peak amplitude on the screen w ill
then be approxim ately 18V (6. 3x2. 8).
3. Set contrast control for m aximum sen sitivity.
4. Tune signal generator to the video ca rrie r frequ ency of
the channel being checked. G enerator signal should be 30%
m odulated at 400 cy cles. The signal from the generator to
produce 20 volts p eak-to-pea k at picture tube cathode should
be less than 25 m icrov olts on channels 2 to 6 and less than
75 m icrov olts on channels 7 to 13.
CIRCUIT DESCRIPTION
The circu it description appearing in the TS-89 serv ice
manual applies to the T S-172 ch assis with the follow ing ex
ceptions:
1. C -17 , the RF to m ixer coupling condenser, is 6 m m f in
stead of 8 m m f.
2. In som e sets, V -6 (6A L 5) the video d etector, is replaced
by a 1N60 germ anium crystal.
3. C apacitor C-41 and resisto r R -32, a part of the cathode
com pensating netw ork on the T S -89, between the ground end
of the con trast con trol and the low est tap^have been rem oved.
L -17 is changed to a red -g reen dot coil.
4. In som e sets, a 6CB6 tube is substituted for the 6AH6 in
the video am plifier stage (V -7 ). The screen re sisto r, R -35
changes from 33K to 22K with this substitution. Another
substitution for the 6AH6 is a 6BC5. The screen resisto r
R -35 is changed to 22K with this substitution also.
5. An additional RC netw ork, consisting of R-100 (470K)
and C -92 (100 m mf) has been added in the clipp er input c ir 
cuit. This network, w hich has a short tim e constant, helps
to m inim ize the effect of noise pulses at the clipper grid.
I
6. In som e sets, a 6SN7 tube is substituted for the 12AU7
vertica l sw eep generator (V-13). The second m ultivibrator
grid re sisto r, R -63 , changes from 330K to. 100K with this
substitution.
7. In som e sets a 6AS5 tube is substituted for the 6W6 v e r 
tical output tube. No com ponent changes are required with
this substitution.
8. In som e sets a 6H6 tube is substituted for the 6AL5 h or
izontal phase detector V-15. No com ponent changes are r e
quired with this substitution.
9. The damping re sistor a cro ss oscilla tor coil L -4E was
changed from 2200 ohm s to 3900 ohm s to stabilize the o s c il
lator on the low channels.
10. In som e sets, 6AG5 tubes are substituted for 6AU6
tubes in the first and second IF am plifier stages. L -ll, the
first IF coil, L-12, the low frequ en cy trap, L-15, the s e c 
ond IF co il, and L-14, the high frequency trap, are changed
in value with this substitution. See parts list. R-13, the
dam ping resistor a cross T -l, changes from 6800 ohm s to
4700 ohm s. R-14, the first IF stage cathode re sisto r, is
bypassed with a 1500 m mf capacitor and R-14 and R-19, the
second IF stage cathode re s isto r, change from 47 to 56
ohm s with this substitution.
11. In som e sets, a 6AG5 is substituted for the 6AU6 in the
audio d riv er-lim ite r stage. This is an exact replacem en t
and requires no circu it or com ponent chan ges; how ever,
substitution of one for the other in the field requ ires r e 
touching the alignm ent of the p rim a ry of the d iscrim inator
tra n sform er for best perform a n ce.
12. R-15, R -20 , C -2 4 , and C -29 are rem oved. R-14 and
R-19, the cathode resisto rs for V -3 and V -4 , are grounded
directly. The su pp ressors are also grounded.
13. The video am plifier B plus supply was changed from
the 240 volt bus to the 265 volt bus and the audio am plifier
B plus supply was changed from the 265 volt bus to the 310
volt bus. The bootstrap cap acitor C -83 , which was conn ect
ed to the 240 volt bus is now connected to the 310 volt bus.
14. In later sets, the horizontal output tube screen re sisto r
R -94 , is returned to the load side of the fuse F -l .
15. It has been found that certain pow er tra n sform ers
raise the "B " voltage 35 to 45 volts too high. In ord er to
afford a m easu re of p rotection for the 6BQ6 and 6W4 in
these instan ces, a resisto r R-104 has been placed in serie s
with the speaker field.
This condition arises only with certain issue "O ", "A ",
or "B " tra nsform ers (issue designation follow s the part
num ber stam ped on tra n sform ers). In issue "C " tra n sform
ers, which are currently being produced, this d ifficulty has
been rem edied and the re sistor is no longer n ecessa ry .
In future replacem ents of tra nsform ers, a ch eck should
be m ade of "B " voltage. If it is found to be low after the
new tra nsform er has been installed, rem ove the re s istor
mentioned above. If "B " voltage is found to be higher than
norm al, insert co rr e ct R-104 resistor in se ries with speak
er field, as shown in schem atic diagram . C orre ct part
num bers for these resisto rs w ill be found in R E PL A C E 
MENT PARTS LIST.
The tube substitutions w ere necessa ry because of the
critica l shortage in som e tube types. These substitutions
do not affect the operation or circu it theory.
)
10
Scanned by mbear2k - Jan 2012
REPLACEMENT PARTS LIST
NOTE: When ordering parts, specify m odel number of set in addition to part number and description of part.
Ref. Part List
No. Number Description Price
CHASSIS PARTS - ELECTRICAL
Capacitors
C-l
_
See Tuning Unit Parts List..
-
C-2 21K77375
Ceramic
tubular: 220 mmf 500V .20
C-3
21A470789 Ceramic
disc: 5000 mmf 450V .30
C-4 21K77375
Ceramic
tubular: 220 mmf 500V .20
C-5
21K470322
Molded: 20 mmf 500V
......
.25
C-6 1X701662
Trimmer,, ceramic: .5-3 mmf;
complete with screw & mtg
nut . . . .
.................
.20
Ref. Part List
No. Number Description Price
C-62 8R9851 Paper: .02 mf 20 0 V ..........20
C-63 8R9870 Paper: .01 mf 6 0 0 V ..........25
C-64 8R9866 Paper: .001 mf 6 0 0 V .........20
C-65 21R6590 Mica: 500 mmf 5 0 0V ..........25
C-66 8R9873 Paper: .05 mf 6 0 0 V ..........25
C-67 8R9875 Paper: .15 mf 60 0 V ..........35
C-68A,B
C & D 23B700160 Electrolytic: 4-section; 80
mf/400V, 40 mf/300V, 20 mf/
300V, 10 mf/300V.......... 3.05
C-69A,B
C-7
C-8
C-9
C-10
C-ll
C-12
C-13
C-14
C-15
C-16
C-17
C-18
C-19
C-20
C-21
C-22
C-23
C-24
C-25
21A470790
21A470790
21K482726
1X701662
1X792784
21K478280
21K470324
21A470789
21K77375
21K478280
21A470789
21A470789
21A470790
21A470790
21A470789
Ceramic disc: 1500 mmf 500V
Ceramic disc: 1500 mmf 500V
Ceramic disc: 10,000 mmf 450V
See Tuning Unit Parts List..
Fine Tuning Trimmer (part of
station selector switch)...
Trimmer, ceramic: .5-3 mmf;
complete with screw & mtg
nut
......................
See Tuning Unit Parts List..
Trimmer, ceramic: 3-13 mmf;
complete with screw & mtg
nut
.....................
See Tuning Unit Parts List..
Molded: 2 mmf (temp comp)..
Molded: 6 mmf 500V
.......
Ceramic disc: 5000 mmf 450V
Ceramic tubular: 220 mmf
500V
....................
Molded: 2 mmf
Ceramic disc:
Ceramic disc:
Ceramic disc:
Ceramic disc:
Ceramic disc:
500V ...
5000 mmf
5000 mmf
1500 mmf
1500 mmf
450V
450V
500V
500V
5000 mmf 450V.
.30
.30
.30
.20
.45
.25
.25
.30
.20
.25
.30
.30
.30
.30
.30
C & D 23B700159
C-70
C-71
C-72
C-73
C-74
C-75
C-76
C-77
C-78
C-79
C-80
C-81
C-82
C-83
C-84
C-85
C-86A ,B
& C
Electrolytic: 4 section; 80
mf/400V, 40 mf/400V, 100 mf/
50V, 20 mf/25V ........... 3.10
8R9869 Paper: .005 mf 600V
......
.20
8R9866 Paper: .001 mf 600V
.....
.20
8R9866 Paper: *.001 mf 600V
......
.20
8R9866 Paper: .001 mf 600V
......
.20
8R9870
Paper: .01 mf 600V
........ .25
8R9869 Paper: .005 mf 600V
......
.20
21K400037 Ceramic tubular: 270 mmf 500V .25
21R2741
Mica: 680 mmf 500V
....... .35
8R9869 Paper: .005 mf 600V
......
.20
8R9854 Paper: .1 mf 200V
.......
.25
8R9874
Paper: .1 mf 600V
....... .35
8R490263
Molded paper: .1 mf 600V...
.35
21K700883
Ceramic tubular: 180 mmf
3000V
...................
.50
8R9874
Paper: .1 mf 600V
........
.35
21K790574
Ceramic tubular: 60 mmf 1500V
(in deflection yoke)
.....
.35
8R9874
Paper: .1 mf 600V
........ .35
i
23B700613
Electrolytic: 3-section; 80 mf/
400V, 20 mf/300V, 10 mf/300V 2.55
C-26
21A470789 Ceramic disc: 5000 mmf 450V
.30
& C 23B700614
C-27
21K77375
Ceramic
tubular: 220 mmf 500V .20
C-28 21K470329 Molded:
comp)
30 mmf 500V (temp
.30
C-88
A & B
23B700615
C-30 21A470789 Ceramic disc: 5000 mmf 450V .30
C-89
8R9810
C-31
21K77375
Ceramic
tubular: 220 mmf 500V .20
C-91
8R9854
C-32
21A470789 Ceramic disc: 5000 mmf 450V.
.30
C-92 21R6574
C-33 21A470789 Ceramic disc: 5000 mmf 450V. .30
C-93 21K482726
C-34 21A470789
Ceramic disc: 5000 mmf 450V .30
C-94
21K482726
C-35
21A470789 Ceramic disc: 5000 mmf 450V .30
C-95 21K780599
C-36
21K470329 Molded:
comp)
30 mmf 500V (temp
.30
C-96 21K780599
C-37
21K470324 Molded: 6 mmf 500V .......
.25
Capacitor-Resistc
C-38 8R9854 Paper:
.1 mf 200V .......
.25
C-42 21K470329 Molded: 30 mmf 500V ...... .30 CR-1 21B702478
C-43
21A478274 Molded: 2.2 mmf 500V
....
.25
C-44 21K790683
Molded: 60 mmf 500V
.....
.25
C-45
21A470789 Ceramic disc: 5000 mmf 450V.
.30 CR-2
21B702479
C-46 21A470789
Ceramic disc: 5000 mmf 450V.
.30
C-47
21K790439
Silver mica: 15 mmf (part of
T-3 base)
...............
.20 CR-3
21B702636
C-48 8R9866 Paper: .001 mf 600V
.....
.20
C-49
21A790131
Ceramic
tubular: 150 mmf 500V .35
C-50 21R6590 Mica: !
500 mmf 500V
...... .25
C-51 21R6590 Mica: J500 mmf 500V ......
.25
C-52 23A90205 Electrolytic: 10 mf 50V....
.45
Crystal
C-53 21K482726 Ceramic
disc: 10,000 mmf 450V .30
E-l
48B702302
C-54
8R9869
Paper: .005 mf 600V
.....
.20
C-55 21R6650
Mica: 68 mmf 500V
.......
.20
C-56 8R9869
Paper:
.005 mf 600V
.....
.20
Fuse
C-57
21K470322
Molded:
20 mmf 500V
.......
.25
F-l
65K702901
C-58 8R9873 Paper: .05 mf 600V ......
.25
C-59 8R9869 Paper: .005 mf 600V......
.20 Coils
C-60 8R9869 Paper:
.005 mf 600V
.....
.20 L-l
24A790033
C-61 8R9870 Paper: .01 mf 600V
.....
.25
Electrolytic: 3-section; 60 mf/
400V, 40 mf/300V, 20 mf/25V. 2.45
Electrolytic: 2-section; 35 mf/
400V, 100 mf/50V
.........
.
1.50
Paper: .25 mf 100V
......
.
.25
Paper: .1 mf 2 0 0 V
...........
35
Mica: 100 mmf 500V
.......
.15
Ceramic disc: 10,000 mmf 450V .30
Ceramic disc: 10,000 mmf 450V .30
Ceramic tubular: 1000 mmf 500V .25
Ceramic tubular: 1000 mmf 500V .25
coupling(optional to C-54,
R-46 & R-47)
......
.
..........
70
Capacitor-Resistor: video
compensating (optional to
C-39, C-40, R-32 & R-33).. . .70
Capacitor-Resistor: vertical
integrating (optional to
C-59, C-60, C-61, R-58, R-59,
& R-60)
.....................
80
(optional to 6AL5 video
detector)
................
1.35
leads
Coil
.25
.50
11
Scanned by mbear2k - Jan 2012
Ref. Part
List Ref.
Part
List
No.
Number Description
Price
No. Number
Description
Price
L-2
_
See Tuning Unit Parts List..
_
R-7
_
See Tuning Unit Parts List..
-
L-3
-
See Tuning Unit Parts List..
-
R-8 6R6320
10,000 10% 1/2W
___
...
doz
1.20
L-4
-
See Tuning Unit Parts List..
-
R-9
6R6038
1500 10% 1/2W
.......
,doz 1.20
L-5
-
See Tuning Unit Parts List..
-
R-10
6R6117
5600 10% 1/2W
.......
,doz 1.20
L-6
24K792825
RF coil: channel 13
.......
.25
R-ll
6R6393
1200 10% 1/2W
.......
.doz 1.20
L-7
-
See Tuning Unit Parts List..
-
R-12 6R6080
4700 10% 1/2W
.......
.doz
1.20
L-8
24K792577
RF choke: 3.3 microhenries..
.20
R-13
6R6428
6800 10% 1/2W (for 6AU6)dz
1.20
L-9
24K780128 RF choke: 2.2 microhenries.. .20 or
6R6080
4700 10% 1/2W (for
L-10
24K790035
RF choke: 5.6 microhenries..
.30
6AG5)
...............
.
.doz 1.20
L-ll
24B701343
1st IF: complete with LC
R-14
6R5550
47 10% 1/2W (for 6AU6),
.doz 1.20
trap, cores, & mtg nuts
or
6R5614 56 10% 1/2W (for 6AG5).
.doz 1.20
(for 6AU6)
..............
.90
R-16 6R6069
2200 10% 1/2W
.......
.
.doz
1.20
or
24K702495 1st IF: complete with LC R-17
6R6394
12,000 10% 1/2W
.....
.doz 1.20
trap, cores, & mtg nuts
R-18 6R6229
1000 10% 1/2W
.......
.doz
1.20
(for 6AG5)
..............
.90 R-19 6R5550
47 10% 1/2W (for 6AU6).
.doz
1.20
L-12
-
27.3 me trap (part of L-ll).
-
or
6R5614
56 10% 1/2W (for 6AG5).
,doz 1.20
L-13
24K790035
RF choke: 5.6 microhenries..
.30
R-21 6R6069
2200 10% 1/2W
.......
,doz 1.20
L-14
-
21.9 me trap (part of L-15).
-
R-22 6R6428 6800 10% 1/2W
.......
,doz 1.20
L-15
24K701344
2nd IF: complete with LC
R-23 6R2035
82 10% 1/2W
.........
doz
1.20
trap, cores, & mtg nuts
R-24
6R6038 1500 10% 1/2W
.......
.doz
1.20
(for 6AU6)
..............
.90 R-25
6R6031
100,000 10% 1/2W
....
.doz
1.20
or 24K702496
2nd IF: complete with LC R-26
6R6031
100,000 10% 1/2W
....
.doz
1.20
trap, cores, & mtg nuts R-27
6R3966 1.5 meg 20% 1/2W
....
.doz 1.20
(for 6AG5)
..............
.90 R-28 6R6117 5600 10% 1/2W
.......
.doz 1.20
L-16
24K792771
RF choke: yellow dot
......
.35
R-29 6R6004
1 meg 20% 1/2W
......
,doz
1.20
L-17
24K792772 RF choke: red-grn dot
......
.35
R-30
6R5550
47 10% 1/2W
.........
.doz 1.20
L-18
24B792735
4.5 me trap: less core & mtg
R-31A
nut
.....................
.50
& B 18A792009
Contrast & Volume control:
or
1X792736
4.5 me trap: complete with
dual; 2000 tapped & 1 meg
core & mtg nut
..........
.75
respectively; includes
L-19
24K701652
Compensating coil: black dot
.50.
power switch .........
.
1.75
L-20 24A470159
Sound take-off: less core & R-35 6R6400
33,000 10% 1W (for 6AH6)...
.20
mtg nut
.................
.35 or 6R6341
22,000 10% 1W (for 6CB6)..
.20
or
1X790341
Sound take-off: complete with
.R-36
- 12,000 (not replaceable;
core & mtg nut
..........
.80
part of L-19)
........
-
L-21
24K701651
Compensating coil: green dot
R-37
6R5671
4700 10% 2W
.........
.25
(wound on R-99)
.........
.50 R-3 8
6R3933
220 20% 1/2W
........
.doz
1.20
L-22
24B700548 Focus coil . . . ,
...........
10.20
R-39
6R2004 8200 10% 1/2W
.......
.doz
1.20
L-23
24K790059
Horizontal oscillator: less R-40
6R5660
180 10% 1/2W
........
.doz
1.20
core & clip
.............
.95
R-41
6R6012
33,000 20% 1/2W
.....
.
.doz 1.20
or
24B790055
Horizontal oscillator: com R-42
6R6428 6800 10% 1/2W
.......
.doz 1.20
plete with core & clip .... 1.45 R-43
6R6428
6800 10% 1/2W .......
.doz
1.20
L-24
24K700776
R-44 6R2122
4.7 meg 20% 1/2W
....
.doz 1.20
or
24K700778
R-45
6R6414
270,000 10% 1/2W
....
.doz
1.20
or
24K700694
R-46
6R6032
470,000 20% 1/2W
....
.doz 1.20
or
24K700714
R-47
6R6032
470,000 20% 1/2W
....
.doz
1.20
or
24K700774
Deflection yoke: complete...
11.00
R-48
6R6022
330 10% 1/2W ........
.doz 1.20
L-25
24K790145
RF choke: 0.47 microhenries.
.20
R-49
6R476004
1000 20% 2W .........
.25
L-26
24K790145
RF choke: 0.47 microhenries.
.20
R-50
6R6320
10,000 10% 1/2W
.....
.doz 1.20
L-27
24K700089
Horizontal size: less core &
R-51
6R3927
2.2 meg 20% 1/2W
....
.doz
1.20
.55
R-52
6R6004
1 meg 20% 1/2W
......
.doz
1.20
or
24B700088
Horizontal size: complete
R-53
6R6397
22,000 10% 1/2W ....
doz
1.20
with core, clip, & mtg nut.
1.35
R-54
6R2096
330,000 10% 1/2*
....
.doz
1.20
R-55
6R6428
6800 10% 1/2W .......
.doz 1.20
Speakers
R-56
6R5581
3300 10% 1/2W
.......
.doz
1.20
LS-1
50K700850
Speaker: 8” electro; 100 ohm
R-57
6R5581 3300 10% 1/2W .......
1.20
field (hot); 3.2 ohm voice
■*
R-58
6R6031
100,000 10% 1/2W
---
-
.doz
1.20
coil (17K1E, 17K2E)
.......
6.30*
R-59
6R603I
100,000 10% 1/2W
....
.doz
1.20
exch
4.75
R-60
6R6397
22,000 10% 1/2W
.....
.doz
1.20
50C701846
Speaker: 8” electro; 100 ohm
R-61
6R6031
100,000 10% 1/2W
....
.doz
1.20
field (hot); 3.2 ohm voice
R-62
6R5577
2700 10% 1/2W
.......
.doz
1.20
coil (17K1E)
.....
.
......
6 .30*
R-63
6R2096
330,000 10% 1/2W (for
exch
4.75
or
6R6031
100,000 10% 1/2W (for
.doz
1.20
Resistors
.doz
1.20
Note: All resistors are insulated carbon
R-64 18A90147
Vertical Hold Control: 1
meg .80
type
unless otherwise specified.
R-65
6R6428
6800 10% 1/2W
.......
1.20
R-66 6R5577
2700 10% 1/2W .......
1.20
R-l
6R6397
22,000 10% 1/2W ......doz
1.20
R-67
6R6032
470,000 20% 1/2W
.....
.doz 1.20
R-2
6R6056
47,000 10% 1/2W
......doz
1.20
R-68
18A702403
Vertical Size Control: 5
meg
.80
R-3
6R5614
56 10% 1/2W
.........
doz
1.20
R-69
6R2118
3.3 meg 20% 1/2W
....
.doz 1.20
R-4
6R2036
33 10% 1/2W .
........doz
1.20
R-70
6R3949
470 20% 1/2W ........
.doz
1.20
R-5
6R6229
1000 10% 1/2W ........doz
1.20
R-71
18A702407
Vertical Linearity Control:
1.50
R-6
6R5659
3900 10% 1/2W ........doz
1.20
♦Plus Federal Excise *ax At Current Rate
12
Scanned by mbear2k - Jan 2012
Ref.
Part
List
No.
Number
Description
Price
R-72
6R6291
560 10% 1/2W (in deflection
yoke)
............
....doz 1.20
R-73
6R6291
560 10% 1/2W (in deflection
yoke)
............
....doz 1.20
R-74
6R6056
47,000 20% 1/2W
---
....doz 1.20
R-75
18A702401
Brightness control: 1
meg. . .
.80
R-76
6R6004
1 meg 20% 1/2W
---
....doz
1.20
R-77
17K700782
Wire wound: 375 10%
10W
___
.35
R-78
18A702404
Focus control: 1000 .
1.55
R-79
17K792705
Wire wound: 2000 10%
10W. ,
.35
R-80 6R6477
15,000 10% 1/2W ...
1.20
R-81
6R6031
100,000 10% 1/2W ..
1.20
R-82
6R6031
100,000 10% 1/2W ..
1.20
R-83
6R2122
4.7 meg 20% 1/2W ..
1.20
R-84
6R2122
4.7 m?g 20% 1/2W . .
1.20
R-85
6R6428
6800 10% 1/2W
....
1.20
R-86
6R6229
1000 10% 1/2W
....
1.20
R-87
6R3949 470 20% 1/2W
.....
1.20
R-88 6R5631
120,000 10% 1/2W ..
....doz
1.20
R-89
18A791574
Horizontal Hold: 100,
000
___
.80
R-90
6R6074
68,000 10% 1/2W ...
1.20
R-91
6R6038
1500 10% 1/2W
....
1.20
R-92
6R6032
470,000 20% 1/2W ..
1.20
R-93
6R5583
47 10% 1W
.......
.20
R-94
6R5690
6800 10% 2W
......
.25
R-95 6R5721
150,000 10% 1W
---
.20
R-96
6R5721
150,000 10% 1W
___
.........
.20
R-97
6R5577
2700 10% 1/2W (in deflec
tion yoke)
........
....doz 1.20
R-98
6R6328
100,000 10% 1W (in deflec
tion yoke) ........
.........
.20
R-99
-
2700 (not replaceable
of L-21) ..........
; part
_
R-100
6R6032
470,000 20% 1/2W ..
1.20
R-101
6R6018 100 20% 1/2W
......
1.20
R-102 6R5551
120 10% 1/2W
.....
1.20
R-103
6R5551
120 10% 1/2W
.....
....doz
1.20
R-104 17K702449
Wire wound: 150 10%
15W
(for 25C701025 & 25C700161
trans)
...........
.50
or
17X700423
Wire wound: 75 10%
25C700169 trans)
___
10W (for
.25
Tr ansforrears
T-l
24K792578
Mixer IF: less cores & mtg
nuts
....................
.45
or 1X792591 Mixer IF: complete with cores
& mtg nuts
..............
.85
T-2
2*B792585
3rd IF: less core, mtg nut, &
colored leads
...........
.65
or
1X792592
3rd IF: complete with core,
mtg nut, C-35, & colored
leads
...................
1.10
T-3 24B790125
Ratio Detector: complete less
shield can
..............
2.00
T-4
25B790686 Audio Output
.............
1.40
T-5
25K701619
Vertical Output
..........
3.25
T-6
24K792753
High Voltage Transformer ....
7.25
T-7 35B790140 Filament Transformer:
isolating (for V-18)
......
3.05
T-8
25C700161
or 25C700169
or 25C701025
or
25K700882 Power Transformer .........
16.65
Tubes
V-l
6CB6
RF Amplifier
.............
-
V-2 12AT7
Mixer-Oscillator
.........
-
V-3
6AU6
or
6AG5
1st IF Amplifier
.........
-
V-4
6AU6
or
6AG5
2nd IF Amplifier
.........
-
V-5
6AG5
3rd IF Amplifier
.........
-
V-6
6AL5
or
1N60
Video Detector
...........
-
V-7
6AH6
or 6CB6
Video Amplifier
.....
.
-
Ref.
Part
List
No. Number
Description
Price
V-8 6AU6
or 6AG5 Audio Driver-Limiter
......
-
V-9
6AL5 Ratio Detector ............
-
V-10
6J5/GT Audio Amplifier
..........
-
V-ll 6V6/GT Audio Output
.............
-
V-12
6SN7GT 1st & 2nd Clipper .........
-
V-13
12AU7
or 6SN7GT Vertical Sweep Generator ...
-
V-14 6W6
or 6AS5 Vertical Sweep Output
.....
-
V-15 6AL5
or
6H6 Phase Detector
...........
-
V-16
6SN7GT
Horizontal Oscillator
.....
-
V-17 6BQ6GT
Horizontal Output & High
Voltage Generator ........ -
V-18
6W4GT Damping Diode
............
-
V-19 1B3GT High Voltage Rectifier
....
-
V-20 17BP4
or 17AP4 Picture Tube: 17” rectangular
-
V-21 5U4G Low Voltage Rectifier
.....
-
TUNER
Model TT-13 Tuning Unit
1X700100 TT-13 Tuning Unit: includes
station selector switch,
fine tuning trimmer, and
the following components:.. 10.85
C-l 21K478234 Capacitor, molded: 8 mmf
500V
...................
. .25
C-10 21K482726 Capacitor, ceramic disc:
10.000 mmf 4 5 0V
............
30
C-13* 21K482726 Capacitor, ceramic disc:
10.000 mmf 45 0 V
............
30
C--15 21K400173 Capacitor, molded: 10 mmf
500V (temp comp)
........
.
.30
L~2 24C792764 Coil, antenna: channels 2
thru 6; includes L-2A thru
L-2E (L-2F thru L-2L are
part of switch)
.............
25
L-3 24K790536 Coil, RF: channels 2 thru 6;
includes L-3A thru L-3E
(L-3F thru L-3L are part
of switch)
..................
20
L-4 24C700114 Coil, oscillator: channels 2
thru 6; includes L-4A thru
L-4E (L-4F thru L-4L are
part of switch)
.............
05
L-4M 24K700115 Coil, oscillator; channel 10 .10
L-5 24K792765 Coil, antenna primary: low
frequency; includes L-5A,
L-5B , & L - 5 C
................
15
L-7 24K700116 Coil, oscillator: channel 13 .10
R-7 6R5659 Resistor: 3900 10% l/2W.doz 1.20
42K790136 Clip, spring (on collar)
.......
10
43K700725 Collar, spring (on rear end
of fine tuning shaft).........10
47K700726 Shaft, fine tuning
........ .50
Part List
Number Description Price
CHASSIS PARTS - MECHANICAL
7K700153 Bracket, coil mtg (L-27)
............
05
7B700194 Bracket, focus coil housing (around
focus coil)
........................
60
7A700196 Bracket, focus coil mtg (across top
of focus coil)
.....................
25
7A791965 Bracket, interlock safety
...........
05
7K700661 Bracket, picture tube rear support:
with grounding spring & 2nd anode
lead insulator
.....
............
2.00
7A792568 Bracket, yoke adjustment (across top
of yoke)
...........................
30
13
Scanned by mbear2k - Jan 2012
Part
Number
35K700532
35A700603
38K7927.73
42K471342
42A701441
42A700147
42B70721
42A76244
42A801062
42K791405
39K17396
46A478242
46K791756
46A470310
46K480256
46A70023
46A470302
46K471143
46A700090
35K792757
5K792031
5A790684
14K791892
14K87179
14A791787
4S7655
4S7688
4S9751
4S2635
2A470049
27K791404
2S7022
257004
257005
2S7003
2S7051
2S7050
2A790191
2B70703
35K702281
35K702282
35K702279
64A702001
64K791818
Description
Bumper, rubber (circular bumper in
rear support bracket)
..............
15
Bumper, rubber (used with RCA yokes
only)
..............................05
Button, plug (covers V-6 socket hole
when 1N60 used)
.............
doz .40
Cap, plate (V-19) .........
......
.05
Cap, plate: with lead (V-17)....... .25
Clamp, lead retainer (dresses V-19
filament leads)
.............
doz .15
Clip, coil mounting (T-3 second
ary)
........................
doz .25
Clip, coil retainer (L-23)
....
doz .25
Clip, hairpin (L-27) ..........doz .50
Connector, 2nd anode
................
50
Contact, pin terminal (on speaker
leads)
.
....................
per/c .50
Core, brass, & screw (T-2)
......
: .15
Core, brass, & screw (L-ll & L-15). .05
Core, iron, & screw (T-l primary,
L-18, & L-20)
.......
.
..............
15
Core, iron, & screw (T-l secondary
& L-12)
............................ 15
Core, iron, & screw (T-3 primary &
L-14) ..............................15
Core, iron, & screw (T-3 secondary) .20
Core, iron, & screw (L-23)
..........
15
Core, iron, & slide adjustment
(L-27)
..............
..............
45
Cushion, focus coil (between coil &
tube) ..............................20
Grommet, insulating: 9/32” hole.doz .30
Grommet, tube socket ..........doz .35
Insulator, coil (in T-2 can)....doz .35
Insulator, coil (in T-3 shield
can)
.............
......
.
.doz .25
Insulator, 2nd anode lead: armite
(on picture tube rear support brkt) .05
Lockwasher, int: 3/8"; cad pi
(front controls mtg)........per/c .50
Lockwasher, int-ext: 1/4”; cad pi
(7B700194 brkt mtg)
.........
doz .15
Lockwasher, int-ext: #8; cad pi
(T-8 mtg)
.................
per/c .50
Lockwasher, int: thin; 1/2” cad pi
(7B700194 bracket mtg)........doz .15
Nut, coil & core mtg (T-l, T-2,
L-ll, L-12, L-14, L-15, L-18 &
L-20)
.......................
doz .50
Nut, coil & core mtg (L-27)
....
doz .50
Nut, hex: 1/4-20 x 7/16; cad pi
(7B700194 bracket mtg)
....
....doz .15
Nut, hex: 3/8-32 x 9/16; cad pi
(front controls mtg)
. . .
......
doz .20
Nut, hex: 6-32 x 1/4; cad
pi (for
3S490459 screw)
....
....
per/c
.50
Nut, hex: 8-32 x 5/16
stl ; cad pi
(T-8 mtg)
.....
.50
Nut, hex: palnut ; 3/8-
-32 :
x 9/16;
cad pi (rear controls mtg)
....
doz
Nut, hex: palnut; 6-32 (T-2 shield
mtg)
...............
*
.....
per/c
Nut, special: cad pi (ceramic
trimmer mtg)
................
doz
Nut, special: palnut (T-3 primary
coil mtg)
...................
doz
Pad, cushion (around top of picture
tube)
............
. . . .
.........
Pad, cushion (long pad at bottom of
picture tube) .........
.
........
Pad, cushion (small pads on picture
tube mtg strap)
..........
.
. .doz
Plate, adaptor (to adapt V-14 socket
hole to miniature socket) .......
Plate, chassis cover (removable
plate on chassis side)
.........
64A90034 Plate, electrolytic mtg (for two
electrolytics)
.....................
05
64A700690 Plate, electrolytic mtg (for three
electrolytics)
..............
doz .35
64K700748 Plate, socket cover (covers unused
hole when two electrolytics used
.
.................
...........
doz .30
64A700745 Plate, transformer cover (for
25C700161 & 25K700882 transformers
only)
..........................
.10
1X700523 Plate, tube mtg: with socket & mtg
bracket (V-19)
.................
.35
28K471323 Plug, line cord: 2-pin
..........
. .20
9A22367 Receptacle: 5-prong (spkr recep
tacle) . ..
.................
.
........
15
5S8497 Rivet: .088 x 1/8 stl; pol nkl
(V-l, V-2 & V-5 socket mtg)..per/c .50
5S7771 Rivet: .088 x 3/16 stl; pol nkl
(mounts V-14 socket when 6AS5
used)
.....................
per/c .50
5S2815 Rivet: .088 x 7/32 stl; pol nkl
(9A485495, 9K780442, 9K484167
socket mtg)
...............
per/c .50
557706 Rivet: .122 x 1/8 stl; pol nkl
(radiation shield spring mtg)per/c .50
557707 Rivet: .122 x 5/32 stl; pol nkl
(9K471270 socket & terminal strip
mtg)
......
.
...............
per/c .50
5S7701 Rivet: .122 x 3/16 stl; pol nkl
(mounts 2nd anode lead insula
tor)
.................
....
per/c .50
5S7700 Rivet: .122 x 1/4 stl; (line cord
plug mtg) ..........
.......
per/c .50
5S7728 Rivet: .122 x 5/16 stl; pol nkl
(V-19 socket mtg) ..........per/c .50
5S6842 Rivet: .145 x 7/32 stl; pol nkl
(T-5 mtg)
.................
per/c .50
5K71246 Rivet, shoulder: nkl pi (V-14 &
V-16 socket mtg)
............
doz .15
3A700198 Screw, eccentric: cad pi (7B700194
bracket mtg)
......
.................
05
3S490822 Screw, machine: 6-32 x 1 slotted
hex head; cad pi (ceramic trimmer
adj)
........................
doz .15
3S490459 Screw, machine: 6-32 x 1-1/8 slotted
round head; brass (secures hi-
voltage transformer plates)....doz .15
3S7163 Screw, machine: 8-32 x 1/4 plain hex
head; cad pi (V-19 mtg brkt).per/c .50
3S490642 Screw, machine: 10-32 x 1-1/2 plain
hex head; cad pi (picture tube re
tainer strap mtg)
...........
doz .15
3S7454 Screw, sheet metal: #8 x 1/4 plain
hex head; cad pi (tuner shield
mtg)
......................
per/c .50
3S7467 Screw, sheet metal: #8 x 3/8 plain
hex head; cad pi (T-7 mtg)
....
doz .15
3S7453 Screw, sheet metal: #8x1 plain hex
head; cad pi (mount picture tube
.15 mounting strap)
.............
doz .15
3K790107 Screw, thumb: cad pi (deflection
.50 yoke adjustment) .............doz .50
26K485936 Shield,coil (T-3)
..................
20
.30 1X792785 Shield, coil: with spade bolts
(T-2 can)
..........
...............
30
.30 1X701853 Shield, radiation: with springs
(around picture tube)
..........
.65
.35 26A702497 Shield, tube (for glass 6J5)..........15
26A90301 Shield, tube: miniature
.............
15
.10 1X701546 Shield, tuner: with pad
.............
95
26A700717 Shield, video (shields video amp
.40 from high voltage transformer)
.......
10
9K700549 Socket, picture tube: 5-pin; with
.05 leads ........
..................
.70
9K700551 Socket, picture tube: 12-pin; with
.30 leads
..............
...............
75
List Part List
Price Number Description Price
14
Scanned by mbear2k - Jan 2012
Part
Number
9A792167
9K780442
9K484167
9K702361
9A471343
9A485495
9K484816
9K471270
9A790685
9A480274
41A70705
41A700563
41A701851
41K702738
41K702739
41A702638
1X701097
1X701098
31K31217
31K90044
31A700148
31K471564
31K51511
31A700697
31K471565
31K37494
31A790122
31K471569
31K26658
31K90046
31A21990
24A792821
24K702048
24A792827
24K700145
451719
4S7569
451720
4S1706
4S7646
4A791447
Description
Socket, tube: min; 7-prong (V-l)..
Socket, tube: min; 7-prong (V-3,
V-4 & V-6)
.........
..........
tube: miniature; 7-prong
V-8, V-9 & V-14 when 6AS5
Socket,
(V-7,
used)
Socket,
tube: miniature (V-15 when
6AL5 used)
Socket, tube:
Socket, tube:
less adaptor
min; tan molded (V-5)
noval; laminated;
(V-13)
Socket, tube: noval; molded (V-2) .
Socket, tube: octal (all octal
sockets except V-14, V-16 & V-19)
Socket, tube: octal (for V-16 &
V-14 when 6W6 used)
...
........
Socket, tube: octal; molded (V-19)
Spring, coil (T-3)
...........
doz
Spring, grounding (grounds picture
tube outer coating)
............
Spring, shield (on radiation shield)
Spring, tension (low voltage
rectifier)
..................
doz
Spring, tension (picture tube
support)
.
.......................
Spring, tube hold-down (around top
of low voltage rect) .........doz
Strap, picture tube mounting: with
pads (lower strap around picture
tube front)
....................
Strap, picture tube retainer: with
pad
.............
ins
#2 gnd
#2 mtg
#2 gnd
#3 gnd
#3 gnd
#4 gnd
#3 gnd
#3 gnd
#4 gnd
#3 gnd
Strip, terminal: 1
3/8” spacing
....
Strip, terminal: 2
3/8" spacing
....
Strip, terminal: 2
3/8” spacing
....
Strip, terminal: 3 ins
3/8" spacing
....
Strip, terminal: 3 ins
3/8" spacing
....
Strip, terminal: 3 ins
special
......
Strip, terminal: 3 ins
3/8" spacing
Strip, terminal: 4 ins
3/8" spacing ,
Strip, terminal: 4 ins
1/2" spacing
....
Strip, terminal: 4 ins
3/8" spacing
....
Strip, terminal: 5 ins
3/8" spacing
....
Strip, terminal: 5 ins
3/8” spacing
Strip, terminal: 2-screw (antenna
terminal)
......................
or
or
or
Trap, ion: PM
...................
Washer, flat: .140 x 3/8 x .030;
cad pi (mounts 2nd anode lead
ins) . . . .
..................
per/c
Washer, flat: 5/16 x .145 x .027;
cad pi (V-14 & V-16 socket
mtg)
......................
per/c
Washer, flat: 3/8 x .156 x .030 stl;
cad pi (rear support brkt mtg)pei/c
Washer, flat: 3/8 x .203 x .033 stl;
cad pi (picture tube retainer strap
mtg)
......................
per/c
Washer, flat: 11/16 x 3/16 x .067
wrought iron; cop pi (T-8 mtg)per/c
Washer, insulating (T-7 mtg)....doz
#2 gnd
#4 gnd
List
Price.
.20
.20
^ .20
.15
.35
.25
.40
.20
.20
.20
.15
.10
, 05
.50
.20
.30
1.40
1.20
.05
.05
.05
.05
.05
.05
.05
.10
.10
.10
.10
.10
.10
1 .00
.50
.50
.50
.50
.50
.15
Part
Number
Description
List
Price
4A77577 Washer, insulating (L-27 mtg)...doz .15
39A702285 Wiper, grounding (on tuner switch
assembly)
..........................
05
Insulating Compounds
11M490423 Coating, hi-voltage insulating: red-
brn (on hi-volt rect socket)
.....
11M490387 Wax, biwax (on hi-voltage trans)...
MODEL 17K1E CABINET PARTS
1X702641 Back Cover: complete with picture
tube rear cover, centering ad
justment cover, & line cord
......
3.90
1JD700605 Bezel, picture tube (window frame) 5.10
7K485464 Bracket, chassis m t g
................
10
16F702557 Cabinet, console: red-brn mahogany;
less window, bezel, & mask
.......
**
42A792193 Clamp, window mtg
............
doz .25
13K701503 Cloth, grille: eggshell & brown;
21-1/2 x 13-5/8
................
2.70
30B470756 Cord, line: with plug & receptacle. 1.50
15K792068 Cover, centering adjustment: rub
ber (on back cover)
............
.
,40
1X792546 Cover, chassis bottom: with hi-
voltage insulator
..............
3.30
15B790987 Cover, picture tube rear (on back
cover)
....
.........................70
5S3139 Eyelet: .202 x .475 brass; ant cop
finish (on back cover)
....
...doz .15
5K4553 Eyelet, pin terminal (line cord
mtg)
........................
doz .20
14B792069 Insulator, high voltage (on bottom
cover)
.............................
20
36B790505 Knob, control (contrast)
............
65
36K780522 Knob, control (hold controls on
chassis rear)
......................
15
36B790506 Knob, control (station selector)... .80
36K792078 Knob, control: wal-mahog (fine
tuning & off-volume)............. .45
4S7657 Lockwasher, external: #8; cad pi
(speaker mtg)
.............
per/c .50
4S7688 Lockwasher, int-ext: 1/4; cad pi
(chassis mtg)
...............
doz .15
4S2639 Lockwasher, int-ext: 5/16; cad pi
(chassis mtg)
...............
doz .40
4S400488 Lockwasher, int-ext: #8; cad pi
(speaker mtg)
..............
per/c .50
62K70581 Logotype: "Motorola"
................
4C
13D701043 Mask, picture tube
..............
4.95
13A790824 Medallion: brs pi ("M" on grille
cloth)
.............................
50
2S7022 Nut, hex: 1/4-20 x 7/16 stl; cad
pi (chassis mtg) .............doz .15
2S7007 Nut, hex: 8-32 x 1/4; cad pi (spkr
mtg) ......,
...............
per/c .50
2S7003 Nut, hex: 8-32 x 5/16 stl; cad pi
(speaker mtg)
.............
per/c .50
35K792499 Pad, cushion (window mtg)
......
doz .30
5S7703 Rivet: .122 x 7/32 stl; pol nkl
(picture tube rear cover
mtg)
......................
per/c .50
5S6846 Rivet: .145 x 5/32 stl; pol nkl
(hi-voltage insulator mtg)
....
doz .15
3S2226 Screw, machine: 1/4-20 x 1-1/4
plain hex head; cad pi (chas
sis mtg)
....................
doz .50
3S7374 Screw, machine: 8-32 x 5/16 plain
hex head; cad pi (bezel mtg).per/c .50
3K653 Screw, machine: 8-32 x 1-1/4; cop
oxide (speaker mtg) ..........doz .20
3S7536 Screw, sheet metal: #6 x 3/8 slotted
acorn head; ant cop finish (window
& back cover mtg) ..........per/c .50
3S7509 Screw, sheet metal: #6 x 5/8 slotted
acorn head; ant cop finish (back
cover mtg)
................
. .doz .15
15
Scanned by mbear2k - Jan 2012
3S490819 Screw, sheet metal: #6 x 7/8 slotted
acorn head; statuary bronze (back
cover mtg)
..................
doz .15
3S3397 Screw, sheet metal: #8 x 5/16
plain hex head; cad pi (mounts
chassis mtg brackets)
.......per/c .50
3S400220 Screw, sheet metal: #10 x 3/4 plain
hex head; cad pi (bottom cover
mtg) ........................ doz .15
35A791581 Strip, lead (dresses leads to side
of cabinet)
.................
doz .20
64K700637 Strip, trim: brass pi (20-1/2”
strip across cabinet front)
..... 1 .“65
4A792497 Washer, cut: cad pi (bezel mtg).doz .25
4K780040 Washer, felt (under control knobs)
.............................doz .25
4S7565 Washer, flat: 1/2 x 7/32 x .048 stl;
cad pi (bottom cover mtg)....per/c .50
61K700607 Window, picture tube: rectangular.. 6.65
MODEL 17K1BE CABINET PARTS -Same as 17K1E except:
16K702558 Cabinet, console: limed oak; less
window, bezel, & mask .......
....
**
36K792079 Knob, control: tan (fine tuning &
off-volume)
.............
*
.....
.45
MODEL 17K2E CABINET PARTS
Part List
Number Description Price
1X702539
13D700605
7K485464
16F702532
55B72307
42A792193
13K700794
30B470756
15K792068
1X792546
a5B790987
5S3139
5K4553
55K700797
14B792069
36K700734
36C700732
36A485457
Back Cover: with picture tube rear
cover, centering adjustment cover,
line cord .
....................
Bezel, picture tube (window frame).
Bracket, chassis mtg
.........
.
Cabinet, console: red-brn mahogany;
less window, bezel, & mask ......
Catch, bullet: statuary bronze (door
latch - on cabinet)
............
Clamp, window mtg
............
doz
Cloth, grille: mahogany & gold;
20-1/2 x 12-3/8
................
Cord, line: with plug & receptacle.
Cover, centering adjustment: rubber
(on back cover)
.................
Cover, chassis bottom: with high
voltage insulator ........
.
Cover, picture tube rear (on back
cover)
...................
.
Eyelet: .202 x .475 brs; ant cop
finish (on back cover)
......
doz
Eyelet, pin terminal (line cord mtg)
.............................doz
Hinge, stop: semi-invisible; sta
bronze
.....................
pair
Insulator, high voltage (on bottom
cover)
.........................
Knob, control (contrast)
....
....
Knob, control (fine tuning & off-
volume)
........................
Knob, control (hold controls on
&
3.75
5.10
.10
**
.05
.25
2.35
1.50
. .40
0,30
.70
,15
.20
1.35
.20
.25
.70
Part List
Number Description Price
13D701043 Mask, picture tube
..............
4.95
13A790824 Medallion: brs pi (MM" on cabinet
front)
.........................
.50
2S7022 Nut, hex: 1/4-20 x 7/16 stl; cad pi
(chassis mtg)
...............
doz .15
2S7007 Nut, hex: 8-32 x 1/4; cad pi (spkr
mtg)
...............
.
.....
per/c .50
2S7003 Nut, hex: 8-32 x 5/16 stl; cad pi
(speaker mtg) ..............per/c .50
35K792499 Pad, cushion .(window mtg)
.....
doz .30
55K700796 Pull, door: pol brs
.......
.
.....
1.60
5S7703 Rivet: .122 x 7/32 stl; pol nkl
(picture tube rear cover mtg)per/c .50
5S6846 Rivet: .145 x 5/32 stl; pol nkl
(hi-volt insulator mtg)
.......
doz .15
3S2226 Screw, machine: 1/4-20 x 1-1/4 plain
hex head; cad pi (chassis mtg).doz .50
3S7374 Screw, machine: 8-32 x 5/16 plain
hex head; cad pi (bezel mtg).per/c .50
3S7536 Screw, sheet metal: #6 x 3/8 slotted
acorn head; ant cop fin (window &
back cover mtg)
...........
per/c .50
3S7509 Screw, sheet metal: #6 x 5/8 slotted
acorn head; ant cop fin (back
cover mtg)
.
.............
.....doz .15
3S490819 Screw, sheet metal: #6 x 7/8 slotted
acorn head; statuary bronze finish
(back cover mtg)
............
doz .15
3S3397 Screw, sheet metal: #8 x 5/16 plain
hex head; cad pi (mounts chassis
mtg brackets)
.............
per/c .50
3S400220 Screw, sheet metal: #10 x 3/4 plain
hex head; cad pi (bottom cover
mtg)
.
........................ doz .15
3K27913 Screw, speaker mtg
...........
doz .20
55K72308 Strike, bullet: statuary bronze;
with 1/2" steel nail (door latch -
on door)
...........................
05
35A791581 Strip, lead (dresses leads to side
of cabinet)
............
.....doz .20
4A792497 Washer, cut: cad pi (bezel mtg).doz .25
4K780040 Washer, felt (under control knobs)
............................. doz ,25
4S7565 Washer, flat: 1/2 x 7/32 x .048
stl; cad pi (bottom cover mtg)
........................... per/c .50
615700607 Window, picture tube: rectangular.. 6.65
MODEL 17K2BE - Same as 17K2E except:
'02533
55K482792
13K700795
55K700798
55K482793
Cabinet, console: limed oak; less
window, bezel & mask ............ **
Catch, bullet: brs pi (door latch-
on cabinet)
........................
05
Cloth, grille: eggshell & gold;
20-1/2 x 12-3/8
................
2.35
Hinge, stop: semi-invisible; brs
pi
.
....
.
...................
pair 1.35
Strike, bullet: brs pi; with 1/2”
steel nail (door latch-on door)... .05
chassis rear)
....
.15 BILT-IN-TENNA
36C700733
Knob, control (station selector)... .50
TA-6
4S7657
Lockwasher, external
: #8; cad pi
(speaker mtg)
.....
........
per/c
.50
1X791900 TA-6 Single Loop Antenna: complete.
4.00
4S7688
Lockwasher, int-ext:
1/4; cad pi
21R2763 Capacitor, mica: 6 mmf 300V
......
.20
(chassis mtg)
....
..........
doz
.15
21R2764
Capacitor, mica: 18 mmf 300V ......
.20
4S2639
Lockwasher, int-ext:
5/16 ; cad pi
24A791748
Coil, antenna loading (on terminal
(chassis mtg)
....
. . .
.
.......
doz
.40
.25
4S400488
Lockwasher, int-ext:
#8; cad pi
24A791989 Coil, high frequency compensating.. .25
(speaker mtg)
....
.........per/c
.50
31K71393 Strip, terminal: 2 ins, #3 mtg;
13K700118
Logotype: ’’Motorola"
; gold
......
.25
3/8" spacing
...................
.05
PRICES SUBJECT TO
CHANGE WITHOUT
NOTICE
** Prices Furnished Upon Request
16
10MUM1250
Scanned by mbear2k - Jan 2012
Scanned by mbear2k - Jan 2012
TELEVISION CHASSIS TS-172
Date: 24 November 1950
Diag. No. 63E702110-0
LSI
Scanned by mbear2k - Jan 2012
r i i
5000L
NOTES
O.C. VOLTAGE MEASUREMENTS MADE WITH A VTVM FROM POINT
INDICATED TO CHASSIS. CONTRAST CONTROL MAX CLOCKWISE
POSITION. ALL OTHER CONTROLS IN NORMAL OPERATING POSITION.
STATION SELECTOR SWITCH ON CHANNEL POSITION DEVELOPING
LESS THAN I VOLT NOISE AT PIN 4 OF TEST SOCKET. ANTENNA
DISCONNECTED. LINE VOLTAGE 117 VOLTS. VOLTAGES OMITTED
HAVE NO SERVICE VALUE.
A.C. WAVE FORMS AND AMPLITUDES TAKEN WITH CONTRAST
CONTROL SET FOR SIGNAL OF 45 VOLTS PEAK TO PEAK LEVEL
AT PLATE OF VIDEO AMPLIFIER. ALL OTHER CONTROLS IN
OPERATING POSITION. (DUMONT 241 SCOPE a LOW CAR PROBE USED.)
RESISTORS INDICATED IN OHMS, K* IOOO (ONE THOUSAND) OHMS.
CAPACITORS INDICATED IN MICROMICROFARADS UNLESS
OTHERWISE SPECIFIED.
INDUCTANCES INDICATED IN MICROHENRIES UNLESS
OTHERWISE SPECIFIED.
caution: DO NOT ATTEMPT VOLTAGE READINGS ON
HIGH VOLTAGE RECTIFIER OR SCOPE READINGS ON 6BQ6
PLATE WITH ORDINARY EQUIPMENT.
•
----
» - w/*
------------------------------------
—
---------------
---------------
AJW f'1 I'
R S O I S
22K C
TRANSFORMER USE RESISTOR
25C701025-0, A a B
------
150/1 15 WATT
25C700I6 I -0, A a B
------
150 A 15 WATT
25C700I69-0, A a B
------
75 £1 10 WATT
Scanned by mbear2k - Jan 2012
L
I
2200
RI6
5000
C26
1000
RI8
5000
C30
2200
R2I
5000
C32
JlM F
TEST POINT T X
SOCKET 4 ^ w
(FRONT VIEW)
- VARIES WITH R68
1
VI3
I2AU7
VERT SWEEP GEN.
EE ALSO
ETAIL 'G\
WITH R64
VI4
I J
6W6GT
VERT. SWEEP OUTPUT
(
SEE ALSO DETAIL 'O '
VERT
LIN. JL
C69C
OR
C68B
I50K
REP7
YOKE (HORIZ.) 38 OHMS
2700 IOOK
IQOV.
VI7
6BQ6GT
■IORIZ. OUTPUT a H.V. GEN.
VI9 L24C
IB3GT
H.V. RECT.
j I4KV |
T6 D C. RESISTANCES
TERM.
RES.
1 TO 2
1.2 OHMS
2 TO 3
10 OHMS
3 TO 4
9 OHMS
4 TO 5
70 OHMS
V20
17BP4
OR
17AP4
PICTURE TUBE
PI AG. N0.63E70g|IQ-0
Scanned by mbear2k - Jan 2012
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Motorola 17K2E User manual

Motorola
Brand
Motorola
Model
17K2E
Type
User manual
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