SERVICE MANUAL
Mini Talk-Book
TRc3540 (GENERAL )
PRODUCT CODE
No.
14253701
L
Specifications
Power Source
DC ................................................................................. 3V
(UM-3, HP7, AA Cell, Mignozelle, R6) x 2
Output Power (Max. music power) ............................. 200mW
Output Power (10% Distortion) ................................... 140mW
Current Consumption (at Vol. Min.)
Record mode ......................................................... l15mA
Playback mode ...................................................... llOmA
Fast Forward mode ............................................... 140mA
Rewind mode ......................................................... 140mA
Recording System ..................................... DC Bias, 1/2 track
Erasing System ............................................. Magnet Erasing
Tape Speed (at tape start begin) ................ 3.09cm/sec. &5%
Torque
Playback mode ............................. ..... more than 40g-cm
Fast Forward mode .............................
more than 45g-cm
Rewind mode .......................................
more than 40g-cm
Specifications and design are subject to change without notice.
b
Wow & Flutter ........................................................ 1.5% RMS
Warning Tone Signal .......................................... 1.2- 3.2kHz
Fast Forward Time .............................
620sec. (with MC-40N)
Rewind Time ...................................... 135sec. (with MC-40N)
Frequency Response (Overall) ................... 400Hz - 4,000Hz
Erase Ratio (Overall) .............................................. ...... 40dB
Signal to Noise Ratio ......................................................
26dB
Harmonic Distortion (K3)
................................................ 13?Z0
Hum & Noise (at Vol. Min.) ........................................ –55dBs
Crosstalk
Track to Track ........................................................... 45dB
Terminal Impedance
Earphone ...................................................................... 8f2
Dimensions ................................... 66(W) x 135(H) x 29(D)mm
Weight (w/o battery) ........................................................ 165g
/
REFERENCE No. SM570918
DISASSEMBLY
GENERAL REMARKS
●
●
●
●
●
Before disassembling the unit, spread a soft rubber mat
or a cloth on the workbench to avoid scratches and
grease stains.
Do not use a material which is likely to cause static elec-
tricity because the transistors and ICS may be easi Iy
damaged by it.
When mounting the P. C. Board, confirm that the leads,
resistors, capacitors, etc., do not contact the function
mechanism such as gear or belt. Also refer to the Ex-
ploded Views.
Reassemble the unit, noting the kinds of screws, the sol-
dering and arrangement of the leads. Refer to “Circuit
Diagram and Exploded Views” for correct assembly.
Before disassembling the unit, take out the cassette tape
and the batteries
CABINET BOTTOM REMOVAL
1. Remove six screws (1 -6) fastening the Cabinet Bottom
and detach the Bottom Cabinet by lifting it.
Bottom Cabinet —x
o
3
\
2. Carefully detach the Bottom Cabinet because three leads
(black, red and white) are connected from the battery
terminals on the Bottom Cabinet to the P. C. Board. If nec-
essary, unsolder their leads from the P. C. Board.
3. Reassemble in reverse order.
P.C.BOARD REMOVAL
1, Detach the Bottom Cabinet by following the instructions
for it and unsolder the Speaker reads (white and blue),
motor leads (red and white) and power switch leads (or-
ange and blue) from the P.C. Board.
2. Remove the screw (7) fastening the P.C. Board and detach
the Top Cabinet by raising it in the direction of the arrow.
P.c.
Top Cabinet
3. Remove the P. C. Board by lifting it in the direction of the
arrow noting the lead wires.
4. Reassemble in reverse order.
CASSETTE MECHANISM REMOVAL
1.
Open the Cassette Compartment Lid and removal the
screw (8). Then detach the P. C. Board by following the in-
structions for it.
Compartment
Lid
2. Remove four screws (9 - 12) fastening the Mechanism.
o
12
Cc,.
\
Cassette
3, Detach the Mechanism by lifting it in the direction of the
arrow noting the lead wires.
4. Reassemble in reverse order.
–2–
4
ADJUSTMENT PROCEDURES
L
L
GENERAL REMARKS
● Before the adjustments, wipe offstains onthe tape con-
tatting surfaces of the parts and the belt with a soft cloth
soaked in alcohol. Trouble may occur because of oil and
grease stains.
● Carefully handle the belt because grease easily attaches
to it. Then, check the used rubber parts. If the rubber has
deteriorated or is scratched, replace the parts with new
ones.
EQUIPMENT REQUIRED
● Vnlfvf
● Frequency Counter
● DC Constant-voltage Regulator
● Dummy Load (4Q)
● Test Tapes
t
For Tape Speed Adjustment:
● Using Tape ..... ..
Mini-cassette Tape of 18P thick
(A-BEX SSC-1582)
● Frequency of Recorded Linear Sweep Signal
. . . ..............................
4,575
- 3,925Hz
● Recording Level ....................................... –lOdB
● Recording Time ................ ..................... 84.5sec.
● Recording Tape Speed 4.75cm/sec. (1-7/8 ips. )
i
For Head Azimuth Adjustment
● Using Tape Mini-cassette tape of 18P thick
(A-BEX SSC-1584)
● Recording Signal ..... .................................... 4kHz
● Recording Level ....................................... –lOdB
● Recording Tape Speed . . 4.75cm/sec. (1-7/8 ips. )
TAPE SPEED ADJUSTMENT
1. Connect a frequency counter to the earphone jack and
play back the above described test tape for the Tape
Speed Adjustment.
Frequency Counter
3,000!iZ&5~o
I
Dummy Load 4Q
EARPHONE
HEAD AZIMUTH ADJUSTMENT
1. Connect a VTVM to the earphone jack and play back the
above test tape for the Head Azimuth Adjustment.
2.
VTVM (Max.)
I
Dummy Load 4fl
EARPHONE
Turn the azimuth adjusting screw until the VTVM reads
the maximum point.
Adjustment
v
c>
RecordlPlay Head
Q
/
Screw
x
g
3. After the adjustment, secure the screw with paint or glue.
2. Detach the Battery Compartment Lid and turn the poten-
tiometer [P501) until the frequency counter reads
–3–
1
21
20
–4–
L
CABINET PARTS LIST
Ref.
No.
Part No.
Description
Q’ty
PACKAGE
6202209982
6202080512
6202193335
8201486216
6201527452
ACCESSORIES
6200227186
6202209975
CABINET
6201156946
6200028790
; 6200033244
3
4070653906
4 6202192499
5
6202192462
6 6202191829
7 6202191782
8 6202191751
9 6202191744
10 6201223680
11 6201226041
12
6201230857
13
6201229004
14 6201229295
15 6201244647
16
6201245103
17 6201249903
18 6201390469
19 6201393798
20 6201084625
21 6201226652
31 6202193014
32 6202192949
41 4110998400
42 4120443105
43
4111606304
44 4110861803
NOTES:
Inner Carton
Pad, Styrofoam
Pad, Plain,Unit
Poly Cover
Serial No. Sheet
Micro Cassette
Instruction Manual
Adhesive Sheet
Speaker
Microphone [MIC 1]
LED SLP-135B-51 [D201]
Assy,Cabinet, Bottom
Assy,Lid,Cassette
Cabinet, Top
Lid, Battery
Bracket-M, Spring
Stopper, Lid, Cassette
Holder Microphone
Screw Pan Head M2.0X4.O
TP Screw Ml .7X3.5
Screw
Screw + M1.7X5.O
Cushion
Cushion
Sheet
Spring Lid Cassette
Spring Earth
Knob Volume
Screw + M1.7X3.O
Assy,PCB,Amplifier
PCB,LED [D201]
SCR PAN PCS 1.4X1.6
SPECIAL SCREW
Pin SPRING 1.6X18
WASHER SPR 2
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
6
6
1
1
1
1
1
1
1
1
2
3
2
1
1, Parts order must contain Model Number, Part Number and De-
scription.
2. Ordering quantity of screws and resistors must be multiple of 10
pcs.
L
L
–5–
:4=$4+-51
51 —
23
4
36 —
53
A
--c!!D
C&22
26
23 -A
,&
9
— 24
JJ-
31
52 —
q“ 4ji/ji/3
\
\
+-
25
%
20
II
@2-27
~ 23
-----
–6–
MECHANISM PARTS LIST
Ref.
No.
Part No.
Description
Q’ty
“L
L
MECHANISM
1
2
3
4
5
6
8
9
10
11
12
13
15
16
17
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
51
52
53
54
55
56
NOTES:
6201257922
6200164962
6200233514
6202097428
6202192529
6202192536
6202193052
6200233989
6200827935
6200833400
6200839211
6201193541
6201226102
6201226133
6201226225
6201226911
6201237656
6201240498
6201244847
6201251081
6201251371
6201251548
6201253399
6201264722
6201273113
6201286243
6201297737
6201300529
6201300543
6201301106
6201371017
6201371086
6201371345
6201372861
6202203676
6201390452
6201390551
6201390605
4110156800
4110157609
4110009304
4110160203
4110194505
4110886509
Lug
Leaf Switch [S2]
Erase Head [HD2S4]
Assy, Motor,3V,0.3W
Assy,Chassis,TRC3540
Assy,Lever,Record
Sheet,lnsulator
RIP Head
Reel Take UP Assy
Arm Complete
Plate Lock Assy
Spacer
Screw +M2.0X3.O
Screw +M2.0X2.O
Screw +M2.0X6.O
Screw +M1.7X4.O
Sheet
Cushion Motor
Cushion
Washer M1.6X3.5X0.2
Washer M1.6X4.0X0.13
Washer M1.7X4.OXO.25
Washer
Reel Supply
Gear Idler
Belt Drive
Plate Brake
Plate Slide
Lever Erase Head
Plate Lock Record
Spring Azimuth
Spring Slide
Spring Brake
Spring
Spring,Tens
Sprinr2
Sprinj
Spring
RING E 1.2
RING E 1.5
RING E 2
RING E 2,5
SCR PAN PCS 1.4X3
WASHER F 2X4.3X0.4
1
1
1
2
1
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
4
8
1
1
1
1
1. Parts order must contain Model Number, Part Number and De-
scription.
2. Ordering quantity of screws and resistors must be multiple of 10
pcs.
‘L
–7–
P.C.BOARD PARTS LIST
Ref.
No.
Part No. Description
Q’ty
ASS Y,PCB,AMPLIFIER
31
J2
J3
P501
S1
S3
S5
VR101
Iclol
Q1OI
Clol
C102
C103
C104
C105
C106
C107
C108
C109
Cllo
Clll
C112
C113
C114
or
C115
C116
C201
C501
C502
R101
R102
R103
RI04
R105
R106
R107
RI08
R109
R11O
Rlll
R201
R202
R501
R502
R503
R504
6202193014
6201227840
6200192026
6200208512
6202185392
6202063508
6201385991
6202065342
6200060233
4091493307
4050000904
4030677201
4030677201
4030746303
4031392608
4030017601
4030011203
4031392707
4030012309
4030012309
4031392905
4030015102
4031794006
4031353500
4040475002
4040126607
4031918709
4031354101
4031354101
4031096407
4031219509
4010278305
4010247004
4010247400
4010272105
4010277209
4010271306
4010273201
4010247400
4010260409
4010260409
4010272600
4010264308
4010263905
4010270309
4010269907
4010262700
4010262304
Assy, PCB,Amplifier
Eyelet
1P Jack 3.6 (EARPHONE JACK)
EXT. Power Socket
VR,Semi 3K N
Switch, Slide,2K-4P-2T (R/P)
Contact Switch (FF/REW SW)
Spring, Plate (MUTE SW)
Rotary Volume 20KC
IC LA4165M
TR DTAI 14YS
MT-COMPO
CERAMIC
ELECT
CERAMIC
CERAMIC
ELECT
CERAMIC
CERAMIC
ELECT
CERAMIC
ELECT
ELECT
ELECT
ELECT
ELECT
ELECT
ELECT
ELECT
CERAMIC
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
CARBON
MT-COMPO
0.033U J 50V
0.033U J 50V
560P K 50V
0.47U M 50V
4700P M 16V
0.022U N 6V
lU M 50V
O.OIU N 16V
O.OIU N 16V
2.2U M 50V
2200P M 16V
220U M 4V
220U M 6,3V
22U M 4V
22U M 4V
lU M 50V
470U M 6.3V
470U M 6.3V
10U M 50V
O.lu z 50V
820 JA l/6W
lK JA l/6W
10K JA l/6W
56 JA l/6W
7,5K JA 116W
510 JA l/6W
560K JA l/6W
10K JA l/6W
27 JA 116W
27 JA l/6W
5.6K JA l/6W
3,3K JA l/6W
330 JA 1/6W
47K JA l/6W
4.7K JA 116W
300 JA l/6W
3.6 JA l/6W
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
NOTES:
1. Parts order must contain Model Number, Part Number and De-
scription.
2. Ordering quantity of screws and resistors must be multiple of 10
pcs
–8–
IC & TRANSISTOR
L
TRANSISTOR
DTA114YS
FRONT VIEW
BOTTOM VIEW
I
I
TERMINAL NAME
I
B -+ BASE
C + COLLECTOR
E + EMITTER
LA4165M TOP/SIDE VIEWS
13
D[
o
1
12
IC BLOCK DIAGRAM
LA4165M BLOCK DIAGRAM
L
–9–
EXT .JP%WER
SOCKET
BLACK
—
‘!”Iwb=
%?
(
kJ9
RED
—
m
o
?
o :.
- cloB* @vv@R503
@i*m@ _
:?? m F’””
I
—
“AA” CELL X 2
.
0
I
PCB LED
Clol I I I II -L /
&
,-
I
a
i MOTOR I
—
--i
I
MUTE
SWITCH
+
I
S5
I
L
wa I
IW7
WHITE
BLUE
+–
@
SPEAKER
L
44-
WI GRAY
HDI-I
R/P HEAD
HD2-I
ERASE HEAD
POWER SW
SIO02
Slool
I
E.IM
R101 02o
L
Clol
0, 033
L
I
R103
HO1-1
10K
R/P HEAO
7
51-2
51-1
HD2-1
ERASE HEAD
rx
x
J
\
w
i!-
EI
a
C112 +
220/4
R104
56
Cllo
C104
2.2/50+
Clll
o. 47/50
2200P
+
R102
lK
C102
o 033
I n
l--h
C113
2.?0/6. 3
+
19 16 17
“O1r“F-=’
w
1
PRE PRE REC V
R/P DC
Vcc PwR
LEO GV
GV VS
GND NF IN
REF
GN13 CONT REF
+gg~+~+ LAUGUZ
0 23 0. 15 1. 19 2.67
IC101 LA4165i
15 15 + Q L ~
L&++_
1515
15 0. 1
0
P. B PRE
PwR PwR
ALC Vox
EO
VOX GV GV GV GV
OUT IN
OUT DC
SW Sw Vcc
OUT GNO
kM--v
@
S1-3 C,O’T .
1/50
R106
510
vR 101
C-20K
\
55
L—vA——
+
?105 7.5K
C108
R108
o 01” ~rJK
T
V@,
T
L+-J
C103 560P
S1 REC/PLAY SW
PLAY
S3
FF/REw SW
OFF
7
C201
470/6. 3
F
+
\
S1OO1
-J51
T
L
~
,3
?
ExT POWER
SOCKET
-A A” CELLX2
I
Jr
,
+
TrT
C114
22/4 ,
N
v
J2
>101 0TA114YS ~
C116 470/6. 3
EARPHONE
JACK
2 96 R201
3. 3K
R11O
27
SPEAKER
‘; ~ ,~~
D201
~a
SLP-135B-51
47X
~d
SP1
4n
S1-4
10K
L
0,9 :
------- --- .-— .___. .
o
[
1
C115
f
R109
1/50 27
S1OO2 TAPE END SE NSER
OFF
A
S1OO2
,H02-21
NOTE%
i
R202
330
1.
All resistors are 1/4 watt or 1/6 watt 5% unless marked.
Otherwise Resistor values are in ohms (K= 1000 ohms,
M = lOOOk ohms).
2. All capacitor values are in microfarads. (P= picofarads).
3. Each DC voltage shows the nominal values in volts no input
signal.
4.
This is a basic schematic diagram.
--
s
*O
Novemberl’9311 ,000IH
Printed in Japan
SANYO Electric Co., Ltd.
Osaka, Japan
-
1
-
2
-
3
-
4
-
5
-
6
-
7
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8
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9
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