IDENON
SERVICE MANUA
MODEL DN-730R
STEREO CASSE'I-I'E TAPE DECK
-- TABLE OF CONTENTS --
SPECIFICATIONS .......................................................................................................................................................... 3
BLOCK DIAGRAM ......................................................................................................................................................... J,
LEVEL DIAGRAM .......................................................................................................................................................... !5
DISASSEMBLY INSTRUCTIONS ........................................................................................................................... 6-7
ADJUSTING AND CHECKING THE MECHANISM SECTION .................................................................................. 3
ADJLISTING THE ELECTRICAL SECTIONS ....................................................................................................... 9-- 10
NOTE FOR PARTS LIST ........................................................................................................................................... l'D
PARTS LIST OF 3U-2584 AUDIO METER UNIT .............................................................................................. 11-13
PARTS LIST OF 3U-2063 POWER SUPPLY UNIT ................................................................................................. 13
PARTS LIST OF EXPLODED VIEW .......................................................................................................................... 14
EXPLODED VIEW ....................................................................................................................................................... 15
EXPLODED VIEW OF CASSEq-I-E MECHANISM .................................................................................................... 16
PARTS LIST OF CASSEqq-E MECHANISM EXPLODED VIEW ............................................................................ 17
PARTS LIST OF PACKING & ACCESSORIES ........................................................................................................ 17
PACKING & ACCESSORIES ..................................................................................................................................... t7
P.W. BOARD OF 3U-2584 AUDIO/METER UNIT .................................................................................................. 18
P.W. BOARD OF 3U-2063 POWER SUPPLY UNIT ............................................................................................... 19
SEMJCONDUCTORS ........................................................................................................................................... 20-21
BUNDLE DIAGRAM .................................................................................................................................................... 2:1
WIRING DIAGRAM ..................................................................................................................................................... 22
SCHEMATIC DIAGRAM ............................................................................................................................................. ,!'.3
NIPPON COLUMBIA CO.. LTD.
_ ON--730R
DN--730R I
!'SPECIFICATIONSI
Type
Heads
Motors
Tape Speed
Variable (PLAY)
Fast Forward,
Rewind Time
Flecording Bias
Overall S/N Ratio
(at 3% THD red,iF
Overall Frequency
Response
Channel Separation
Crosstalk
Wow & Flutter
Inputs
Line
Outputs
" Line
Headphone
Power supply
Power Consumption
Dimensions
Weight
Installation _
• Vertical tape loading; 4-track 2-channel
stereo cassette deck
Recording/playback head (amorphous) X 1
Erase head (Double-gap ferrite) × 1
Capstan (DC servo motor) × 1
Reel (DC motor) x 1
4.8 cm/sec. (FIX)
Approx. _+12%
Approx. 110 sec. with a C-60 cassette
Approx. 105 kHz
Dolby_ NR on" more than 74 dB (CCIR/ARM)
25N19,000 Hz 4:3 dB (at --20 dB, Metal tape)
More than 40 dB (at 1 kHz)
More than 65 dB (at 1 kHz)
0.055% WRMS (JIS method), _+0.14% w. peak
80 mV (--20 dBm) input level at maximum
Input impedance: 50 kohm unbalanced
775 mV (0 dB) output level at maximum
(with 47 kohm load, recorded level of
200 pwb/mm)
1.2 mW output level at maximum
(optimum load impedance
8 ohmN1.2 kohm)
Voltage is shown on rating label
16W
482 (W) X 134 (H) ;< 275 (D) mm
4.7 kg
19-inch rack mountable (3U)
iN
iN
Above specifications and design styling are subject to change for
improvement.
Dolb¥ noise reduction and HX Pro headroom extension manufactured
under licence from bolby Laboratories Licensing Corporation. HX Pro
originated by Band & Olufsen.
"DOLBY", the double-D symbol 1313 and "HX PRO" are trademarks of
Dolby Laboratories Licensing Corporation.
Best results will be obtained with use of DENON DX and HD Series cassette I
tapes. 1
[ _BLOcK DI_A_G_B_A_M_
z
1
DN-730R
IiEVEL DIAGRAM j
PLAYBACK SYSTEM
TCC-130 IDOLBY B-TYPE
400 Hz 200 nw-b/m
PB HEAD PB EQ AMP PB GAiN
IC302
- - - (3) 7
TESI A_=
400_'z -- !' (2)
'J I I .__'-'r:_ [ aT,o,
' dl + (RT20b
%? !
DOLBY NR
SYSTEMIC
rC303
'°I
, -20_
I
!
-ac -i
60"
i
-704 -rob
_" _LAY BACK TCC-'30 400Hz 200nwbzm
LINE MUTE HEA[',)PHONE AMP PHONES
T_?04 iC306 OUT
LINE OUT
LINE _UTE ..... _+___,
I ÷TdB _HONES OUT LCAD ,B,Q
/J_-----Io_B L,NEO0,:,
OdB=775mV
RECORDING SYSTEM
INPUT FREQUENCY
400 Hz
L KE INPUT
:N_:Z VOLUME
iNPUT FRE QUE'NC ,'
L_n t
,pen) __ _OOk,z
VRS01
LE'_EL
÷';0 ]
o
-lo _
20
2OdB
-24¢JB
DOLBY NR REC qEC EO AMP BIAS REC
SYSTEM IC SENSE 5 C,_10 4 -RAP HEAD
)rPr208)
I
]
-15d£ (NORMS, L] !SdB (ME TAL)
-20 5dB (CHROME)
21dB (NORMAL)
+ 2dB (METAL)
-0 5dB (CHROME)
-_ f'dB (NORMAL)
40-
50 -_
-60"
-70
REC PLAY FREQUENCY : 400H'z
O_B:Z7§mV
i DISASSEMBLY INSTRUCTIONS I
1. How to Remove the Front Panel
(1, Remove the four screyvs, (4 X 12. CBTS-P) in the side of the
top cover. M_ve the top cover to the rear and rise it to
remove it.
(2_ Press the eject knob, open the cassette box and remove the
cassette window as shown in the figure•
Note: Handle the cassette window with care because _t
can be scratched easily.
(3, Remove the three screws (3 × 10 CBTS-P) on top of the
front panel, the two hooks on the top, the three hooks on
the bottom and pull the unit forward to detach it
Screw
Top cover
/
Cassette bax
\
panet
2 hooks on the top of the front panet
z
[
t
3 hooks on the bottom of the front panel
2. How to Remove the Front Escutcheon Ass'y
(1) Remove the top cover and front panel. (Refer to Step 1 )
(2) Remove the three retaining screws 3 × 10 CBTS-(P)-B
holding the Front Escutcheon at the front.
(3)
(4)
(5)
(6)
Disconnect all lead connectors.
C Mechanism W151 (7P) -- CN151
|
Head wire _ CN301 | Audio
!
Head wire _ CN302_ circuit
/
Meter circuit W131 (3P) _ CN131 / board
!
board 23PFFC -_CB121 I
Remove Volume Knob and Volume Knob (C).
Remove the four retaining screws (2.6 × 6 CBTS(S)-Z) (3
x 10 CBTS(P)-B) holding the Mecha Bracket.
Remove the Hooks at the left and right of the front face of
the Front Esc. Ass'y, and the two hooks on the bottom,
Front Ass'y can be removed towards the front.
MechenJsrn i-etain;ng Screw
\ IBxO)
Mechanism _'_
1 _f Mechc]nism retaining Screw
,." ! _(3x10
i
j-
Knob C"
escutcheon
A_s'y
Hooks at left and right of Frcnt Esc. Ass'y
3. How to Remove the Mechanisms
Remove the four Mechanism retaining screws 3 × 10 CB'[S(P)-B
and take out C Mechanism
4.
(1)
(2)
(3)
How to Remove the Meter Circuit Board
Remove the top cover and the front panel. (Refer to section
1.)
Remove the front esc ass'y (Refer to section 2)
If you remove the five binding screws(3 x 8CBTS.Ptight)
of the meter circuit board, and loosening the five hooks, the
meter circuit board can be taken off.
Note: When replacing the tact switch check to ma<e sure
that d:_s not floating ab3ve the circuit board If it is
floating, the switch will oe in the on condition when
the set is assembled
X
C)N-730R I
HO0_
Meier Circuit Board
5. How to Remove the Cassette Door
(1) Remove :the MfNI]Zf_l_PER"_etaining screw _'-x 8 CBTS{P)-
B and take out tl_ MINI DAMPER
(2) Hold the legs of the CASSETTE BOX folded inwards and
pull up to remove the CASSETTE BOX and BOX SPRING
sc_ew_ ,i __
¢smper --Box spring
Front surfaceofFroqtAss'y
6. How to Remove the Audio Circuit Board
(1 } Remove the top cover and the front panel. (Refer to section
1)
(2) Remove the front esc. ass'y. (Refer to section 2.)
(3) Remove the connectors from the audio circuit boa{d and
power supply circuit board.
Side of the Side of the
Power suppl,i CN901 -- (7P) _ CN901 audio circuit
circuit board TBG board
CONNECTOR
(4) Remove the screw (3 x 10 CBTS-P tight) (3 x 8 CBTS.S
tight) that is holding down the 4P pin jack and circuit board.
By removing the two catches (left and right) of the chassis
holding down the circuit board in the directions of the
arrows shown below, the audio circuit board can be pulled
forward.
Power supply
circuit b0crd
\,\
7F TBG
Screw
.(3x10)
Ccrew
I',3X 8] )
circuit board
Note: Almost all of the servire repairs to the audio cir-
cupt board can be performed by removing the
bottom cover on the rear side of the chassis
Only when it is unavoidable should you refer to
the removal method mentioned above.
When reassembling, follow the procedu-es in
the reverse order. However, if each of the various
parts are not asserrbled properly in their re_pec-
twe position, the sel cannot be assembled in
some cases. Theretore, check the work of each
step carefully when assembling
7. How to Remove the Power Supply Circuit
Board
{1 _ Remove the to_ cover and the front oanel. (Refer to section
(2) Remove the bushing that is fixing the power suppl_ cord
from the chassis.
(3) When the five screws (4 x 1:3 CBTS.P tight;, (3 x 10
CBTS-P tight) that are holding the power transformer and
chicuit board are removed, the power supply circuit board
can be removed by raising it.
Powe" supp(y
circuit board
DN--730R
ADJUSTING AND CHECKING THE
MECHANISM SECTION
1. ReplacincTthe Pinch Roller (36)
Before replacincl" tl_e pinch roller, clean the tape contact surface
o[ the pinch roller and the capstan shaft.
Most causes of poor tape transport can be traced to dirty pinch
roller and capstan shaft.
Remove the clips that press the pinch roller and pull the pinch
roller forward to remove it.
After replacing, run a padless C-90 tape to check for tape curls
at the tape guide section of the head.
2. Checking the Pressure Force of the Pinch
Roller (36).
In the playback mo_d.e_hpok a. spring weight opto the bracket at
the center o; the pinch roller. After separating the pinch roller
from the capsta'q s_'aft, allow fl_e pinch roller to contact the caps-
t_n shaft again. Check to make sure the spring weight reads be-
twveen 250-- 350 g when the pinch roller starts to rotate
Replace the pinch roller (36) when it does not conform to the
slandard specification values.
Capstan shaft
li
Pinch roller
: i
_._ 250 -- 350 g
,
(1)
Replacing the Record/Playback Head (14)
How to remove _e RiP HEAD.
1) Remove securing screw (1) and azimuth adjusting
screw (1) from the record/playback head
2) Remove the soldered head wire and disassemble the
mech_,nical unit to remove the record:playback head.
(2) How to assemble the R,,P HEAD.
Reverse the above 1 procedures for removrng the R,"P
HEAD
" Solder the HEAD WIRE according to the diagram
mechanism (re('ordingiplayback head)
4. Replacing the ERASE HI'AD (15)
(1) Unscrew the erase head holding screws (53).
(2) By unsoldering the HEAD W RES can be taken off the
mechanism unit.
(3) When the replacement is completed, secure the screws
with the screw lock
____F--ZZ_-:±-J
5. Checking the Take-up Torque
Load the cassette type torque meter ',SONY TW21:11 ).
Check to make sure that the aver3ge torque meter reading is
within 30-70 g-cm during playback. If it is not within thi,_; range.
check the voltage (approx. 4V) of th_ reel motor. If the voltage is
low, the torque will be weak: if it is high, the torque will be strong
6. Checking the FFand RE\_/ Torques
Load the cassette type torque meier (SONY TW2231). Check to
make sure the torque meter indicates within 90--180 g-cm at
the end of FF and REW.
7. Checking the Back Tension Torque During
Record/Playback
Load the cassette type torque meter (SONY TW2i11): check
to make sure the torque meter read_ between 2 --6 g-cm during
playback and that there is no unevenness
If it is not within this range, replace the reel ass'y (5) or Washer.
8. Checking the FF and REW Times
Load a C-60 cassette tape (DENOI'4 GR-2/60); check to make
sure the tape is fast forwarded o: rewound within 110 sec-
onds. if it is not within this range, rheck sections 5 and 6.
9. Checking the Existence of a Cassette
Housing and the Operation of the Erase
Prevention, Metal and Chrome Switch
Confirm that the sensor arm properl !, detecting the tape type de-
tection holes on the cassette housin(.;
BROWN
BLUE
ADJUSTING AND CHECKING THE[
_ELECTRICAL SECT] _ON............
• Caution on adjusting
(1) Before adjusting, clean the head surface, capsta_l ,_r_dthe
pinch roller with a gauze or a cotton swab moistened with
alcohol.
(2) Demagnetize the R/P HEAD and the E. HEAD with a head
eraser.
(3) Completely demagnetize the adjustment screwdriver.
(4) Unless instructed otherwise, set the various controls as fol-
lows.
© INPUT volume ............................................................. maximum
© DOLBY NR switch ................................................................. OFF
© TAPE SPEED volume ......................................... Center position
1. Tape Transport Check
Load the transport check cassette In the operational mode, illu-
minate the fixing guides of the R/P HEAD with a lamp and check
to make sure the tape edge does not come in contact with the
tape guide section
The tape transport is the most important element in determining
the performance of a cassette deck.
Avoid moving the various adjustment screws, nuts, etc., as much
as possible Refer to the pages on "Adjusting and Checking the
Mechanism Section" when replacing or adjusting the R/P HEAD
2. Adjusting the Azimuth
(1) After completing the tape transport check, load the test
tape (A-BEX TCC-153). Fig. 2-1
(2) Playback the test tape; adjust the azimuth screw so that
section A of the resurge wave form is maximum and section
B is minimum. Fig. 2-2
OSCILLOSCOPE
; / PO,'DOLBYNR /
A-_EXI_ _ ,,_ L-€.
TAPE| PB/DOLBY NR OUT -
Fig. 2-1
RESURGE WAVE
O" 30" 90" 135" 180"
OK NG
Fig. 2-2
3.
(1)
(2)
Checking and Adjusting the Tape Speed
Connect the frequency counter to the LINEOUT tern_inal
and load test tape (SONY TY-224).
Playbacka test tape. At about halfway through the tape,
where the tape transport is stable, adjust the adjustment
points (RT305) on the P.W. BOARD (222 2778 ***) so that
the frequency counter will have a reading within the
range of 3,000 Hz +6 Hz. Fig. 3-1
PB Amp
0UT
SONY TY-224
F Counter
3000 Hz
+6Hz
r"
¢
i°: d i . |
i _ _ [] ol,,_.___J....... J
-" _ "APE
Fig, 3-1
,
DN-730R I
Adjusting the Playback and Recording
Section
Procedure Item Usage tape -- Response Mode Adjustment Adjustment procedure
input condition location
1 PLAYBACK A-BEX Fig. 4-1 PLAYBACK RT-101 (L) Adjust the LINEOUT output to 775 mV
GAIN TCC- 130 RT-201 (R) (OdBs).
2 P.B. A-BEX Fig. 4-1 PLAYBACK Make sure the playback characteristics
Frequency TCC-162B, 262B conform to Figure4-2.
3 REC/P.B. GR-2/60 Fig. 4-2 REC. PLAY RT-103 (L) Record 1 kHz and 10 kHz alternately.
Frequency 1 kHz, --40 dB _ RT-203 (R) Adjust each volume so the 10 kHz
10 kHz, --40 dB PLAYBACK playback output is 0.5 dB in relation to
the 1 kHz playback output.
4 REC GAIN GR-2/60 Fig. 4-2 REC. PLAY RT-108 (L) Adjust each volume to the playback output
1 kHz, --30 dB _ RT-208 (R) is the same as when the recording monitor
PLAYBACK is output.
5 REC/P.B. GR-2/60 Fig. 4-3 REC. PLAY Make sure that the DOLBY NR C recording
Frequency Dolby NR C _ and playback characteristics conform to
PLAYBACK Figure 4-3.
Playback Frequency Response
....... +r -4 - --_ ! i! ....
_6
20
50 _oo 200 SO0 tk 2= _ 10k _4_ 20_ {Mz)
Tape A.BEX TCC-262B/162B
Fig. 4-1
Record/Playback Overall Frequency Response
(do)
.6
.4
,z
.I
0
-I.
-2
-4
° _T I ;;i',[ _L___L_L_
-' _ _ !_J_! _ ! l_
20 50 ioo 200 _00
P
'' I ii ,"f..,. , I
_._J_._l i :ill ; ] I i
_[ I I illl ! I i 1
I,
I'
J_ I [ _ ] II
t!! ', !
k 2w 5_
.6_
.2---------+------i----
°t .... -+---_ _
-2
-,--- I I
-5--- I *
-is _ i
20 50
,-,,-" ---I
-- --4-------.I
Ta_ HD-TE_60
Dolby NR Off
Level -- 20 dB From Dolb¥ Level
Fig. 4-2
Dolby C Record/Playback Overall Frequency Response
till
IIII
lIII
__ _ 1 J
1
:I --•
........ __-- _--, ' 1 . Fig. 4-3
IK 2k 5k t0k 14k 20k(z)
Itlt
tOO 200 500
Tope HO-7E/60
Dolby NR On C
Level -- 20 dB From Dolby Level
_LJI',4-/L._UHII III I I II I I I I _ II III
EQUIPMENT FOR ADJUSTING
AND CHECKING
1) MEASURING TAPE ........ TYPE NAME, BRAND AND USES
TYPE NAME BRAND USES
TW-2111A!2121A SONY Checking the Take-up Torque and
Back Tension.
TY-2231 SONY Checking the FF and REW Torque.
GR-2/60 DENON Checking the FF and REW Times.
TCC-153 A-BEX Adjusting the Azimuth.
TY-224 SONY Checking and Adjusting the Tape
Speed.
TCC-130 A-BEX Adjusting the Playback Level.
TCC-162/262B A-BEX Checking the Playback Frequency
Response.
TCC-902 A°BEX Transport checking cassette tape.
2) MEASURING INSTRUMENT
Tension gauge
Audio signal generator
Variable resistance attenuator
Electronic voltmeter
Oscilloscope
Frequency counter
Adjustment screwdriver
Trap coil adjustment square stick
NOTE FOR PARTS LIST
ePart indicated with the mark " @ "are not always in stock and possibly to take a long period of time for supplying, or in some
case supplying of part may be refused.
eWhen ordering of part, clearly indicate "1" and "r' (i) to avoid mis-supplying.
eOrdering part without stating its part number can not be supplied.
ePart indicated with the mark "*" is not illustrated intheexploded view.
eNot including Carbon Film :!:5%, 1/4W Type in the P.W.Board parts list. (Refer tothe Schematic Diagram for those parts.)
WARNING:
Parts marked with this symbol _ _1 have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
• Resistors • Capacitors
Ex.: RN 14K 2E 182 G FR
Type Shape Power Resist- Allowable Others
1 andper" 1 ance error 1
formance
RD Carbon 2B 1/SW F : ±1% P : Pulse-resistanltype
RC Composition 2E : 1/4W G ±2% NL : Low noise type
RS : Metal oxide film 2H : 1/2W I J ±5% NB : Non-burmng type
RW Winding 3A : lW J K : ±10% FR Fuse-resistor
RN : Metal film 3D 2W M t20% F : Lead wire forming
RK Metsl mixture 3F 3W
3H : 5W
Resistance
1 8 2 -- 1800 ohm -- 1.8 kohm
_t_ "1--- Indicates number of zeros after effective number
2-digit effective number.
• Units: ohm
1 R 2 -- 1.2 ohm
T [__. 1-digit effective number.
2-digit effective number, decimal point indicated by R.
a Units: ohm
Capacity (electrolyte only)
2 2 2 -- 22001tF
T t[__ Indicates number of zeros after effective number
2-digit effective number
a Units: p.F.
2 R 2 -- 2.2p.F
T -- 1-digit effective number.
2-digit effective number, decimal point indicated by R.
• Units: p.F.
EX.: CE 04W 1H 2R2 M BP
Type Shape Dielectric Capacity Allowable Others
and per- strength error 1
formance _ ___J
CE Aluminum foil
electro:ytlc
CA : Aluminum solid
electrolytic
CS :Tantalrn electrolitic
CO Film
CK Ceramic
CC Ceramic
CP Oil
CM Mica
CF Melahzed
CH Melalized
OJ : 83V
rA lOV
lC : 16V
tE 25V
1V 35V
IH :50V
2A 10OV
2B 125V
2C 160V
2D 20OV
2E 250V
2H :500V
2J 630V
F ±1%
G ±2%
J ±5%
K : :t10%
M ±20%
Z : +80%
-20%
P +100%
-0%
C ÷O 25pF
O ±05pF
-- : Others
HS : High stability type
BP : Non-polar type
HR : Ripple-resistanl type
OL : For charge and discharge
HF :For assuring high
frequency
U : UL part
C : CSA part
W UL-CSA lype
F Lead wire foming
* Capacity (except electrolyte)
V 2 2200p.pF - 0.0022pF
L (More than 2) -- Indicates number of zeros after effective number
2-digit effective number
e Units: pF
2 2 I -- 220PF
T L(0 or 1) -- Indicates number of zeros after effective number.
2-digit effective number
e Units: PF.
e When the dielectric strength is indicated in AC, "AC" is included after the
dielectric strength value.
10
DN--73OR
PARTS LIST OF GU-2778 AUDIO/METER UNIT
Ref. No. Part" No. l Part Name .[ Remarks
SEMICONDUCTORS GROUP
IC301 262 0590 001 TCUPC1330HA
IC302 262 08__006. IC UPC45706
rC303 263 0720 004/IC HA12170NT
IC304 263 g56'5 007_'1 IC BA15218
/
IC306 263 6711 000 _ IC M5218AP
IC307 263 0354 001 IC UPC1297CA
IC309 263 0565 007 IC BA15218
JCSOI 262 0447 009 IC BA6109U1
16601 222 2045 001 _ Computer UPD78043GF-
100-3B9
IC602 262 1711 909 IC X246008
IC901 263 0810 008 IC NJM7808FA(S)
IC902 263 0503 001 IC NJIV17908FA
IC903 263 0793 002 IC NJM7806FA(S}
IC964 263 3432 907 IC NJM78LOSAT
tC910, 911 268 0072 003 IC.Protector ICP-NIO
TR101 269 0074"9()7" l';:a_si_i_'r DTA114TS(10K)3" I Built in Resistor
i
TR102 269 0102 905 Transistor DTC124EKT146 Built in Resistor
TR103 273 0245-900 Transistor 28C2603E/F T
TR104 275 0048 912 Transistor 2SK381(B)/(C)-T
TRI08, 109 269 00:88 906 Transistor DTC114TKT96 Built in Resistor
TR111-113 269 0088 906 Transistor DTC114TKT96 Built in Resistor
TR114, 115 269 0!02 905 Transistor DTC124EKT146. Built in Resistor
TR201 269 0074 907 Transistor DTA114TS(10K) Built in Resistor
TR202 269 0102 905 Transistor DTC124EKT146 Built in Resistor
TR203 273 0245 900 Transstor 2SC2603E/FT
TR204 275 0048 912 Transistor 2SK381(B)/(C)-T
TR208, 209 269 0088 906 Transistor DTC114TKT96 Built in Resistor
T8211-213 269 0(!88 906 Transistor DTC114TKT96 Built in Resistor
TR_307 26 c 0040 902 Transistor DTC144ES(47K-47K) Built in Resistor
TR308 272 0025 907 Transistor 2SB562(C)TF
TR309, 310 273 0245 900 Transistor 2SC2603E/F T /
T8370 269 0018 905 Transistor BTC143ES(g.7K-47K} I Bui{t {n Resistor
i
TR371 269 0022 904 Transistor OTA143ES(4.7K-4.7K){ Buiff in Resistor
T8507 269 0062 906 Transistor OTC124ES(22K-22K) Built in Resistor
TR508 269 0!316 907 Transistor OTA144WS(47K-22K} I Built in Resistor
1
TR515 26!} 0318 905 Transist0" 0TO143ES[4 7K-4.7K} I Built in Resistor
T8552, 553 26!) 0391 906 Transistor DTC143TKT96 ' Built in Resistor
TR554_556 274 0036 905 Transistor 2SD468(C}TF
TF557 26) 0015 908 Transis_orDTC124XS(22K-47K) Built in Resistor
TF,558 263 0082 902 i Transistor DTC114EKT96 Built in Resistor
T8559 269 C054 901 Transistor DTC144EKT96 Built in Resistor
TR560, 561 271 0183 92-7 Transistor 2SA933(R/S)T93
TRT01 269 C122 901 i Transislor DTC144WKT146 Built ;n Resistor
TR904 272 0025 907 _Transistor 2SB662IC)TF
DI55 276 0432 903 i Diode 188270A TE
0255 276 0432 903 i Diode 188270A TE
D3i5, 316 2_6 (1432 903 I Dioce 18S270A TE
D320 276 0432 903 Diode ISS270ATE
0503 276 0553 905 ! Diode 18R35 200A(T93X)
0517, 518 276 0432 903 ! Diode lSS270A TE
r
0553 2/6 0553 905 I Diode 1SR35-200A(T93X)
0554 276 0432 903 Diode 188270A TE
J
D601, 602 276 0432 903 ijDiode 1 SS270A TE
0901-904 2!6,3553 905 i Diode 1SR35-200A(T93X)
i
D910,911 276 0553 905 Diode 1SR35-200A(T93X)
C915, 916 276 0553 905 Diode 1SR35-200A(T93X)
ZD304, 305 276 0468 906 Zener Diode HZS9B-1TD
ZD410 276 0468 906 / Zener Diode HZS9B-1TD
ZD531 276 0468 906 Zener Diode HZS9B-1TD
2D551 276 0457 904 Zener Diode HZS4C-1TD
ZD552 276 0465 909 I Zener Diode HZS7B-1TD
/
2'.D907 276 0463 901 Zener Diode HZS6C-1TD
210912 276 0482 908 Zener Diode HZS27-1TD
ZD913 276 0472 905 _Zener D ode HZS11C-1TD
±
Ref. No. PartNo. _ Part Name ] Remarks
RESISTORS GROUP _.
(not included Carbon Film _+5% 1/4 W type)
VRI01 211 6093 967 Adjust 47K ohm VO6PB473T
VR 103 211 6093 9;'0 AdiJst lOOK ohm VO6PB104T
V8!08 211 6093 954 Adjust 22K ohm VO6PB223T
VR201 211 6093 967 Adjust 47K ohm VO6PB473T
V8203 211 6093 970 Adiust lOOK ohm VO6PB104T
VR208 211 6093 954 Adjust 22K ohm VO6PB223T
VR301 211 0707 000 Valiable lOOK ohm (INPUT) VO9V25FA10Z.
VR304 2tl 0835 008 Valiable 5K oh'n V16_f251:BSO2MG
VR305 211 6093 9!2 Ad ust 4.7K ohm VO6PB472T
R101,102 247 0010 987 Chp27Kohm RM73B--273JT
8103 247 0005 947 ' Chp 150 ohm RM73B--151JT
8104 247 0010 974 Chip 24K ohm RM73B-243JT
8105 247 0014 912 Chip 620K ohm RM73B..-624JT
8108 247 0014 967 Chip 1M ohm , RM73B--105_,T
R_ 11 247 0008 !360 Chip 3.3K ohm RM73B--332JT
8i 12 247 0009 943 I Chip 6.8K ohm RM73B--682JT
J
8118 247 0009 985 I CYip 1OK ()bit RM73B-103JT
8120 247 0010 !329 j Chip 15K ohrr i RM73B-153JT
/
R132 247 0006 !362 ! Chip 470 ohm ] RM738 -471JT
8135 247 0007 '945 ! Cf ip 1K ohm ['RM73B-.-lO2JT
8140 247 0011 986 Chip 68K ohm I RM73B--683JT
i R141 247 0011 944 Chip47Konm RM73B-473JT
! R142 247 0012 927 Chip lOOK ohm RM73Eb-lO4JT
i 8143 247 0010 929 ! Chip 15K ohm RM73B-153JT
', 8144 247 0011 902 i Chip 33K ohm RM73B--333JT
! 8!45 247 0005906 Chip 100 ohm RM73B--lO1JT
i 8150 , 247 0012 969 I Cqip 150K ohm RM73B-154JT
i 8151 _ 247 0010 929 Cqip 15Kohm RM73B--153JT
:= , , '
:4i56 ....... I "247 0005 905 Chipl00'ohri RM73B-101JT
0160 247 0010 961 Chip 22K ohm RM73B--223JT
R161 247 0012 927 Chip lOOKohm RM73_--104JT
R162 247 0010 961 Chip 22K ohm RM73B-223JT
R163 247 0006, 988 ! Chip 560 ohm RM73B--561JT
R164 247 0006 975 Chip 510 ohm RM73B-51}JT
8175 247 0014 967 Chip !Mchrq [RM73B--105JT
:_177 247 0007 974 i (:hip 13K o_m I RM79B--132JT
8178 242 0009 914 '_(;hip 5.1K ohm ] RM72B--512JT
3189 247 0009 901 ! (.'hip 4.7K ohm i RM788- 472JT
=;181 247 0008 902 : (.'hip 1,8K ohm i RM73B--182JT
!
R189 242 0017906 ("hip lOMohm RM73B--lOSKT
R199 247 0010 974 (;hip24K ohm RM73B-243JT
8201,202 247 0010987 Chip27Kohm IIRM73B--273JT
8203 247 0005 947 i Chip 150 ohm ! RM73B- 1EIJT
8204 247 0010 974 !Chip 24K ot'm l: RM73B- 2:3JT
R205 247 0014 912 I Chip 620K ohn- i RM73B--624JT
8208 247 0014 967 Chip 1M ohm IRM73B-lOSJT
8212 247 0009 943 ) Ct]ip 6.8K ohm ' RM73B--682JT
R218 247 0009 985 ) Chio 1OK ohm I RM73B -103JT
8220 247 0010 929 Chip 15Kohm RM73B-153JT
8229 247 0009 956 iChip 75K ohm I
R232 247 0066 962 [ Chip 470 ohm I RM73B-752JT
RM73B- 471JT
R235 247 0007 945 [Chip 1K oh'n RM73B--102JT
8240 247 0011 986 Chip 68K oqr'P RM73B -6_3JT
8241 247 0011 944 Chip 47K ohm RM73B-473JT
R242 247 0012 927 ] Chip lOOK 3hrq ' RM73B÷-IO4JT
8243 247 00" 0 929 i Chip 15K ohm RM73B--153JT
8244 247 0011 902 Chip 33K ohm RM73B--333JT
R245 247 0005 905 Chip 100 ohm RM73B--lO1JT
8250 247 00'12 969 Chip 150K ohm RM73B--154JT
R251 247 00!0 929 i Chip 15K chrr RM73B--153JT
11
mBIDN-730R
Ref. No. i - Part No. Part Name
R253
R256
R257
R260
R281
R262
R263
R280
R289
R299
R301
R321
R330
R331
R332
R334
247 0009 985 Chip 1OK ohm
247 0005 905 1 Chip 100 ohm
24t 73014 987 / Chip 1M ohm
"247 0010"961 / Chip 22K ohm
247 0012 927 J Chip lOOK ohm
247 0010 961 Chip 22K ohm
' Chip 560 ohm
247 0006 988
247 0008 944 Chip 2.7K ohm
247 0017 906 Chip IOM ohm
247 0010 974 Chip 24K ohm
247 0010 961 Chip 22K ohm
247 0010 945 ! Chip 18K ohm
247 0009 985 Chip 1OK ohm
247 0009 901 I Chip 4.7K ohm
241 0007 987 I Chip 1.5K ohm
247 0007 961 I Chip 1.2K ohm
R336, 337 247 0008 957:- {-Chip-3K ohm
R36_ 361 247 0012 943 I Chip 120K ohm
R364 247-0009 901 ! Chip 4.7K ohm
R36 247 0009 985 Chip lOKohm
R37[ 37t 247 0001 983 i Chip 4.7 ohm
R401, 402 2470012943 i Chip 120K ohm
R403 i 247 0012 927 I Cqip lOOK ohm
R404 2z.7 0005 989 ] Chip 220 ohm
R405 i 2z.7 0004 922 I Chip 47 ohm
2z7 0012 927 I Chip 100K ohm
R406 i I
R501-506 i 2470012927 , Chip lOOK ohm
R507 247 0011 944 . Chip 47K ohm
_ R508 247 0015 940 Chip 2.2M ohm
R510. 511 247 0011 944 Chip 47K ohm
R513, 514 ii 247 0012 927 I Chip tOOK ohm
R516 i 247 0018 905 ChipOohm
R518 ,i 2:17 0009 985 ] Chip 1OK ohm
R520, 521 i 2,;7 0009 985 I Chip lOK ohm
R540 2,;7 0009 985 Chip 1OK ohm
R556 2,;7 0010 961 Chip 22 ohm
R557 247 0009 985 :'Chip IOK ohm
R558 2,;7 0010 961 Chip 22Kohm
R559 2,;7 0009 985 ! Chip IOK ohm
0007 945 [ Chip 1K ohm
R560 247
I
R561 2¢4 2055 970 Metal oxide film 56 oqm l W
R562 2470007987 Chip 1.SKohm
,'_&R563 .... } 241 _3_'59i2 Caibo_ Flim 10 _hm 1i4w (Fusible)
R564, 565 24.7 0009 985 _Chip 10K ohm
R571 247 0018 905 (,hip 0 ohm
i
R573 247 0009 956 ! (:hip 7.5K ohm
R574 247 0009 985 i (:hip 1OK ohm
R577--580 247 0012 927 (::hip lOOK ohm
R581 : 247 0012 927 (:hip lOOKohm
R602 247 0010916 ('hip 13Kohm
R603, 604 247 0007 945 [ (,hip 1K ohm
R605,606 247 0012 927 Chip lOOKohm
R610, 611 2470007945 i Chip 1K ohm
R612 247 0007 945 i (:hip 1K ohm
R613 247 0009 985 IChip 1OK ohm
I
R650 247 0005 947 _(2hip 150 ohm
R652 247 0005 963 i (Chip 180 ohm
R654 2_47 0006 917 ('_.hip 300 ohm
R660 2,:47 0005 947 (Chip 150 ohm
R662 `1'47 0005 963 (Chip 180 ohm
R664 ,i!47 0006 917 Chip 300 ohm
R666 2.47 0006 956 Chip 430 ohm
R670 247 0005 947 Ch p 150 ohm
R672 247 0005 963 Chip 180 ohm
R674 247 0006 917 I Chip 300 ohm
i
I
R676 247 0006 959 LChip 430 ohm
12
Remarks
RM73B--lO3JT
RM73B--lO1JT
RM73B--105JT
RM73B--223JT
RM73£--lO4JT
RM73B--223JT
RM73B--561JT
RM73B--272JT
RM738--106KT
RM73B--243JT
! RM73B--223JT
! RM73B--!83JT
RM73B--103JT
RM73B- 472JT
i RM73B--152JT
I
I RM738--122JT
! RM73B- 302JT
I
I RM73B-124JT
I RDi482E220GFRST
RM73B- 472JT
i RM73B-.103JT
i
i RM73B- 4R7KT
,_RM73B- 124JT
I RM73B_-lO4JT
I Rlv173B--221JT
! RM73B--470JT
, RM738--104JT
RM73B--104JT
i RM73B-473JT
RM73B--225JT
RM738--473JT
RM73B-104JT
i RM73B- OROKT
i RM73B- 103JT !
RM73B- 103JT l
RM73B--103JT
RM73B- 223JT
RM736, 103JT
Rl'v173 B 223JT
: RM73B,-103JT
RM73B 102JT
RS14BSA560JSTISb
i RM75B.-152JT
RD14B2ElOOGFRST I:
RM73B -103JT
RM73B- OROKT
RM73B 752JT
RM73B 103JT
RM73B-lO4JT
RM73B- 104JT
! RM73B--133JT
RM73B-tlO2JT
[ RM73B- 104JT
i RM73B--102JT
i RM738_ 102JT
!RM73B--103JT
RM73B--151JT
RM73B-181JT
RM73B--181JT
RM73B-301JT
/ RM73B-431JT
RM73B--151JT
RM73B-181JT
! RM73B--301JT
[ RM73B- 431JT .
T
Part No. _ Part Name Remarks
Ref. No. .[
CAPACITORS GROUP
C101
C103
C109
C127
C142
C150
C151
C152
C153
C154
C155
C201
C203
C209
C227
C242
C250
C251
C252
C253
C2.54
C255
C350
C352
C353
C354
C355
C356
C402
C403
C501 _504
C506
C507
C509, 510
C512, 513
C515, 516
C517
C551, 552
C553
C554
C555
C60! -603
C604
C902, 903
C906, 907
C908
C910
C911
C913
C918
R126
R169
i
257 0008 996
257 0O09 979
257 O0O9 937
257 0005 902
257 0005 944
257 0008 996
257 0910 900
257 0004 961
253 1131 909
257 0011 967
257 0,310 942
257 0008 996
257 0009 979
i 257 0009 937
i 257 0005 902
i 257 0005 944
i
! 257 0008 996
257 0010 90C
267 0004 961
[ 253 1131 90 c,
! 257 0011 967
257 0010 94,1'
i 257 0013 907
257 0002 921
257 0009 940
257 0009 94(}
257 0010 90(}
! 257 0009 995
i
i 257 0002 92_
I 257 0014 935
I
[ 257 0008 98.'}
257 0008 983
257 0008 983
257 0010 900
i 257 0008 983
! 257 0008 983
257 0013 910
25/ 0010 900
' 257 0011 941
25; 0010 900
254 4403 713
257 0008 983
257 T013 977
i 254 4,403 718
257 13013 910
254 4403 721
254 4250 796
257 9013 910
2%; 4414 707
257 0913 910
257 0008 983
Chip (Ceramicl 0.0012 p.F/50 V , CC73SL" H122JT
Ch_p(Ceramic_ 0.0056 gF/50V CK7381H562KT
Chip (Ceramic) 0.0027 gF/50 V CK73B1H272KT
Chip (Cer_m c) 150pF/50V CC73SL'IH151JT
; Chip (Ceram c) 220 pFi50 V I CC73SL1H221JT
i
Chip (Ceramic) 0.0012 pF/50 V CK73Bl14122KT
Chip (Ceramic) 0.01 IaF/50 V , CK73B114103KT
Chip (Ceram c) 100 DF/50 V _CC73SLIH101JT
Ceramic 390 pF/500 V CK45B214391KT
Chip lCeramiC) 0033 _F/25 V i CK73B11-333KT
Chip (Ceramic) 0.022 BF/50 V i CK7381H223KT
Chip (Ceralnic] 0.0012 gF/50 V I CC:73SL1H122JT
Chip (Cerami< 0.0C56 gF/50 V } CK7381H562KT
Chip (Cera'qic' 0.0C27 pF/50 V ! CI< 7381 q272KT
Chip {Ceramic} 150pF/50V CC73SL1H151JT
I Chip ICerarnic) 220 pF/50 V._ CC73SL1H151JT
i Chip(Cera_< 00[,12,uF!50V ICK73B1H122KT
Chip {Cerarnic) 0.01 uF/50 V I CK73B1HIO3KT
,Chip :Ceramic) 100 pF/50V CC73SL1H101JT
Ceramic 39(: pFi500 V CI<45B2H391KT
Chip (Ceramic_ 0 033 uF!25 V CK7381E333KT
I Cmp (Cerami(:_ 0.022 gF/50 V C1<7381H223KT
Chip 00,17 V CI<73B1H473ZT
(Ceramic) pF/50
Chip (Ceran'ic) 10 pF!50 V CC73SLIH100DT
.Chip(Ceramic100033#Ft50V !CY73B1H332KT
Chip(Ceramir) 00033![F/50V ICF73B1H332KT
Chip (Ceran" ic) 0.01 !LF/50 V iC1',7381, H103KT
Chip(Ceramir) 0.0082#F/50V !CK73B1H822KT
Chip(Ce-ar',ic) 10pF/50V iCC73SL1HlOODT
Chip(Ce-amic}C.1 pF/50V ICK73F1ElO4ZT
Chip (Ceramic) 0001 pFiSO V CK73B1H102KT
Chip {Ce_mh:} 0.001 ,uF/50 V ! CC7381HlO2KT
Chp (termini,:) 0001 [aF/50 V i CK73B1H102KT
Chip <Ceramic) 0.01 LtF/50 V! CK73B1H103KT
Chip (Cer_£rli:) 0 001 [IF/50 V
i Chip (Cer_Lmk) 0 001 _[FiSO V
! Cqip (Cerami(i 0058 !tFi50 V
Chip (Cerami() 001 HF/50 V
! Chia iCeram;(:) 0 022 FF/25 V
i Chip _Cer !'nil:) 0 01 t[Fi50 V
I Electroh/tic 1000 pF/25 V
Chip .[:er;{mh:) 0,001 HFi50 V
i C_ip :Cer;imi<} 0.068 uFi50 V
[ Electrol,,tic 10011 pF/25 V
i Chip [Cer)mi,;) 0068 [LFi50 V
Electrol,,'tic 2200 pFi25 V
i Electrol;'tic 4700 gF/6.3 V
: Chip (Ceram:;) 0268 ,uF/50 V
Electrolvtic 470 uF/50 V
Chip (Ceramc) 0.068 uF!50 V
I C'fip (Cerami:) !_F,'50
0001 V
CK73B1 H102KT
CK7381 HIO2KT
C:<73B_ H683ZT
C <73B" HIO3KT
C <738" E223KT
C<738 H1 03KT
CEO4WI _102MC SMG
: CK73B1HlO2KT
CK73B t H683KT
C!i04W1EIO2MC SMG
CK73B 1H683ZT
C:04W1E222MC SMG
C-04WOJ472MC _SMC!
CK73B ] H683ZT
C[ 04W1 H471MC SMQ,
CK73B ! H683ZT
CK73BlH102KT
257 0008 967 [Chip tCerarnic) 580 DFi50V CK73B1H681KT
R226 251 0008 983 ! [hid (Ceramic) 0 001 pF/50 V CK73B1HlO2KT
i .
• R269 . 25? 00_08 9€7 iChlp ,C_,rarn,c) 680 pF!50 V _CK73BIH681KT
OTHER PARTS
L101
L103
L104
L105
L201
L203
L204
L205
L301
I 232 0109 003
I
235 0020 945
235 0020 916
239 0010 009
232 0109 0(}3
235 0020 945
235 0020 9!6
239 0010 009
23! 0078 005
MPX Filter
Inductor 1E3JT
Inductor 8,12JT
HX Step up col
MPX Filter
Inducto" 153JT
Inducto- 82.2JT
HX Step up coil
OSC Coil
T ....
IDN-730R
Re1. No.
XT501
PL601 612,'
SW610,
614, 616, I
620, 622, i
624, 626,
628, 630,
632, 634,
636, 638,
JK301
JK302
JK303
CNI21
CN122
CN131
CN141 205
CN191 205
CN301 205
CN302 205
W122 204
W131 203
W141 203
Wl51 204
W,_51 208
W_52 203
WARNING:
• Paris marked with
to safety.
Be sure to use the
i art" No. Part Name Remarks
399 0107 007 : Ceramic Oscillator CTS4.19MGW
393 8002 009 _FL Tube FIP6BGM6
212 5604_910 Tac! Switch
I 204 8261 003 , 4P Pin Jack i LINE IN, OUT
: 204 8264 026 ) Head phone Jack HEAD PHONE
j 204 8416 007 ,IMini Jack i CD SYNCRO.
! 205 0880 003 '_23P FFC Connector Base
i 205 02;43 061 I 6P Connector Base (KR-PH) i
J 205 02143 032 : 3P Connector Base (KR-PH) i
0343 049 4PConnector Base (KRPH)
0711 075 , 7P TBG Connector Base
0343.05& LB_coonector Base (KR-PH)_
02_43 Q32 ! 3P Ccnnector Base (KR PH)
0265"_78 _ 6P KR-DA Connector Cord
4753046 i 3P KR-DA Connector Cord
6374 025 4P KF',-DA Connector Cord
2326 009 ! 7P KR-DA Connector Cord
I
t
6;!36 066 ! 4P KR-DA Connector Cord
8:!16 042 I BP KR-DA Connector Cord
'i" and/or shading have special characteristics important
specified parts for replacement.
PARTS LIST OF 3U-2603 POWER SUPPLY UNI'I"
Ref. No. Part No. Part Name Remarks
SW901 212 0286,303 ',Power Switch
CN191 205 0711 075 7F' TBG Connector Base
CN901 205 058t 001 2P VH Conne;tor Base For AC Corc
WARNING:
• Parts marked with i and/or shading have special characteristics important
to safety, i'
13
m E)N--730R
PARTS LIST OF EXPLODED VIEW
Ref. No. " Part No. Part Name Remarks
Hi 1 411 1000 652 i CHASSIS
i
411 1000 681j CHASSIS
i_ 41 l. 1000 665 ! CHASSIS
2 412 _'523 115 EARTH BRACKET
o5 3 105 0787"107 BOTTOM COVER
4 3:38 0168 009 CASSE]-FE MECHANISM
Europe, U.K.
U.S.A., Canada
Multi-Voltage
WARNING:
• Parts marked with _ and!or shadirg I-ave special characteristics important
to safety.
Be sure to use the specified parts for replacement.
• Part indicated with the mark _ are not always in stock and possibly to take a
long period of time for supplying, or in some case supplying of part may be
refused.
o
9 412 2OO8 012
11 414 0637 009
12 104 0208:2.1:42
13 GU 27,38
13-1
13-2 --
133 --
134 --
14 3U-2603
15 205 0712 074
16 204 8261 003
18 211 0707 000
19 412 3951 003
21 211 0835 008
22 204 8264 026
23 393 8002 009
25 4:31 03t0 046
26 1!3 1481 364
27 113 1436 393
28 113 1480 255
29 113 1438 045
30 112 0515 173
31 112 0727 042
32 1,33 1650 101
33 1_3 0765 215
34 134 2309 216
35 133 1511 318
36 4,53 0655 009
37 463 0659 018
38 1,33 1660 007
39 421 9007 007
40 414 0595 015
41 203 2279 014
45 1,32 0434 419
46 473 8047 001
47 412 3676 207
48 412 3628 006
49 463 8238 004
50 412 3677 015
51 445 8028 009
53 513 2150 001
54 412 3942 009
101 473 7508 017
102 477 0262 006
103 473 7502 013
104 473 7509 058
105 473 7500 044
106 413 7002 018
!07 473 7007 039
108 47t 3102 013
BUSHING PLATE
SHIELD LABEL
•FOOT ASS'Y
#UDI0/METEB P.W.B UNIT
AUDIO P.W.B.
METER P.W.B.
I H/P JACK P.W.B
VARI PITCH P.W.B.
POWERTRANS PWB. UNIT
7P TBG-S CONNECTOR
4P PIN JACK
VARIABLE RESISTOR lOOK
I REFLECTOR
VARIABLE RESISTOR 5K
HEAD PHONE JACK
FL TUBE (FIP6BGM6)
POWER SWITCH LEVER
ASS'Y
PUSH KNOB (B)
FUNCTION KEY
! PUSH KNOB (A)
] EJECT KNOB
VOLUME KNOB
VOLUME KNOB (C)
FR(]NT ESCUTCHEON ASS'Y ,:TK;,
METER WINDOW
FRONT PANEL
CASSETTE BOX
CASSETTE SPRING
I
BOX SPRING (R)
I
CASSE_FEWINDOW (A} ASS"/
MINI DAMPER
j [ARTH PLATE
2C TERMINAL WIRE 3T
TOP COVER
SPECIAL SCREW
EJECT LEVER
LEVER STAY tB)
SPRING
i MOUNT BRACKET
CORD HOLDER
I WARNING SHEET
I VOLUME BRACKET
3 x 10 CBTS(P)-B
SPECIAL SCREW
4 × 10 CBTS(P)-Z
4 x 12 CBTS(P)-B
3 x 8 CBTS(P}-B
3 x 8 CBTS(S)-Z
4 x 20 CBTS(SFB
2 x 5 CBS-Z
(JK3011
:V0920V25FA104
V1620V35FAS02 tMGI
(FL601)
14
DN-730R _
EXPLODED VIEW
4 6
0
WARNING:
Parts marked with this symbol /_ _ have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
A
C
D
B
15
_DN-730R
A
D
16
EXPLODED VIEW OF CASSETTE MECHANISM
• \
4
DN-73OR_
PARTS LIST OF CASSEI-[E MECHANISM EXPLODED
VIEW
Ref. No.
2
3
4
5
6
7
8
10
11
12
13
14
15
16
=', 17
18
19
20
21
24
25
26
27
28
29
3O
31
32
33
34
36
38
39
40
41
42
43
44
5!
52
53
54
Part No.
9DF 5170 49
9DF 5642 85
9DF 6121 51
9DF 6230 37
9DF G156 11A
9DF J111 17
9DU J12V 11
9DF C52E 47
9DF K26N 14
9DF D45T 17
9DF U192 11
9DF U18K 12
9DF K21U 11
9DF 5252 56
9DF 5673 52
9DA W13G 00
9DU E16E 11
9DF C39S 33
9DF C52H 12
9DF D45G 21
9DF D45B 16
9DF D44T 14
9DF D44Y 12
9DF D44V 12
9DF F17W 31
9DF Jt 11 30
9DF J111 14
9DF K28M 12
9DF K28R 11
9DF R22H 11
9DF R20L 22
9DF Gl14 14
9DF G15S 11A
9DU G13U 15
9DU G206 11
9DF 7652 63
9DF L39H 12A
9DF L39K 12
9DW H63P 05
9DW H55L 05A
9DF G137 18
9OF F17C 12
Part Name Remarks
IDLER
REEL MOTOR
CHASSIS BASE
REEL BASE
SCREW 2.6 × 6.4 ZN
WASHER 1.7 x 0.25T
POLY WASHER 2.1 × 0.25T
HEAD BASE
HB SPRING
HEAD SPACER
ERASE HEAD
R/P HEAD
SPRING
MAIN MOTOR
CONTROL P.W.B. Ass'y
REEL SENSOR (GP2S04B)
PUSH SWITCH
EJECT PROTECT ARM
CASS E'I-FESPRING
PLAY ARM
CAM GEAR (3R)
REC. SENSOR LEVER
PACK SENSOR LEVER
METAL SENSOR LEVER
MAIN BELT
POLY WASHER 2.6 x 0.25T
POLY WASHER 2.6 X 0.5T
EJECT PROTECT SPRING
SLIDE SPRING
FLYWHEEL Ass'y
PINCH ROLLER Ass'y (R)
SCREW 2.6 x 5 ZN
SCREW WITH STEP (7,7)
E RING
WAVE SCREW 3 x 8 ZN
SOLENOID
IRON CORE
PLUNGER
ERASE HEAD CORD
R/P HEAD CORD
2 x 9F LOCK SCREW
HOLDER CUSHION
PARTS LIST OF PACKING & ACCESSORIES
Ref. No.
1
3
4
5
6
7
8
9
10
11
WARNING:
Part No,
505 8092 007
503 1079 005
501 1698 037
601 1853 005
505 0038 030
511 2682 007
399 0250 006
203 2360 004
203 4880 003
515 0692 004
502 0852 000
Part Name
LAMINATE ENVELOPE
CUSHION
CARTON CASE
CARTON CASE
POLY COVER
INST. MANUAL (5)
REMOTE UNIT (RC-41)
2P PIN CORD
3P MINI PLUG CORD
DEL WARRANTY COM
PAD ASS'Y
Remarks
FOR SET
U.K,
U.S.A. Only
U.K. Only
Q'ty
1
2
1
1
1
t
1
2
1
1
1
• Parts marked with /_ and/or shading have special characteristics important
to safety.
Be sure to use the specified parts for replacement.
[ PACKING & ACCESSORIES _
5058092007
LAMINATEENVELOPE
5011698037
CARTON CASE
/_(Cu,_O11853005
RTON CASE
.ModetOnty)
5020852000
PAD ASS'Y
(U.K.ModetOnty)
5031079005
3990250006
REMOTE UNIT(RC-41)
2034880005
3P MINIPLUG CORD
2032560004
PiN CORD(2PCS)
5050038030
POLY COVER
5150692004
DEL WARRNTY COM.
(U.S.A. ,CANADA Mode I. Onty)
17
_I UN-73ON
4
A
B
E
Lp.w. BOARD OF GU-2778 AUDIO/METER UNIT
_I ,°.°° ..
I
i
18
I ON-73ORH
i"P.W. BOARD OF 3U-2603 POWER SUPPLY UNIT I
÷
DENON
3U-2605 2222603005
SW901
POWER
SWJ'[CH
T901
=OWER
_[RANSFORMER
1
4v-
e,--
JV904
E 1 (240V)
Jvg03
EU.EC.EA.EK
SW902 I 0
VOLTAGE I
SELEC-OR I 0
JV"
JV2
JV_
JV4
JV5
JV6
JV7
r.
oH
->v
_r
w
0 "_° l
CN191
Remarks
1. The following table shows the power circuit parts used for the 3U-2603 board by area.
2. Parts used are marked O, ]:)artsnot used --.
F
: Ref.No.
i Areas
I
Europe (E2)
Power Trans
part No.
2335985005
FUSEF901
I
!
Voltage
Selector
O
U.K. (EK)
Multi.Voltage (El) 23:35760000 I O
U.S.A. & Canada (E3) 2335758009
JV901 JV903 JV904 JV905
i
oo t_
19
_ E)N-730R
SEMICONDUCTORS 1
• IC --
5
-, E_ ,,_ Bou,
• M15218AP
• pPC4570C
• TL4558
NclT
NcIT
VSS E
I
0
X24C00S
• X24('00S
8'-_ VCC
NC
----ISCL
5-_ SDA
vST[Z
VRI
V IN(R) II_
PHI_
CIN1E
C OU _r 1[_
v OUT I!
V OUT 12_
SN°
--,,,j----
• ,uPC 1297CA
_'cc
vR2
PH2
_2_]V 01. f21
_V O,. T 22
_] V Irl(0)
3 2
• NJM7908
3 2
• NJM7808
• NJM7806
3 GND
2 INPUT
! OUTPUT
3 INPUT
2 GND
I OUTPUT
• #PC1330HA
vcc
PB
_t£F
C/8/O_F
_. OLP"
,_R LN
p_ OUT
$SI
$52
¢c_
LLS D_I"
R£¢ O,J't
PS tu
BA_
FT: _ ....-
,I, HA12170NT
20
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