Sanyo TRC-3640 User manual

-.
Service Manual
LSpecifications
Recording system ..........
Erasing system . . . . . . . . . . . .
Tape speed (at tape start begin)
Fast forward time ...........
Rewind time ...............
Wow&flutter ..............
Cue Tone Signal ............
Warning Tone Signal ........
FILE NO. I
Mini Cassette Recorder TRC-3640 (XE)
DC bias, 1/2 track Frequency response ....
Magnet S/N ratio .............
3.09 cmlsec . f 5“Io Output power .........
620 sec. (with MC-40N) Power source .........
135 sec. (with MC-40N )Terminals ............
1.5 “/o RMS
150 Hz Dimensions ..........
1.2 -3.2 kHz Weight ..............
PRODUCT CODE No.
14260200
.... 400-4,000 Hz
.... 28 dB
200 mW (Max. music power)
DC :3 V, (2size “AA “batteries )
Earphone jack :8 ohm
Ext. DC jack
66 (W)x 135 (H)x 29 (D) mm
Approx. 185 g (without batteries)
Specifications subject to change without notice.
REFERENCE No. SM580442

REMOVAL AND lNSTALLATION—
GENERAL REMARKS -.
.Allwiring should bereturned totheoriginal position after work is completed.
.Before adjusting the mechanism of this unit, wipe the tape contacting surfaces clean as well as
the contacting surfaces of the driving parts with acotton swab or asoft cloth soaked in alcohol.
Trouble may occur because of oil and grease stains.
.Handle the belt carefully 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 one.
a. REAR CABINET
9
c. TOP LID
d. WIRING LAYOUT
●Arrange the wiring as shown in the figure.
(WHITE-
BLUE-
b. AMP. P. W. BOARD &MECHANISM
d)
—RED
-BLACK
)
ANGE MIC LEAD
@&E
t.
GRAY
HEAD
1LEAD
I
—Gf
–GF
. . H
L-J
-1-
.
iJEHEAD‘EAD

ADJUSTMENTS
Measuring instructions, tools (6) TEST TAPE, HEAD AZIMUTH (7) TEST TAPE, MOTOR SPEED
(1)
(2)
(3)
(4)
(5)
a.
(a)
AF VTVM ●Using tape :Mini-cassette tape of ●Using tape :Mini-cassette tape of
FREQUENCY COUNTER 18 pthick( A-BEX SSC-1584, etc.) 18 ,Uthick( A-BEX SSC-1 582, etc.)
OSCILLOSCOPE ●Recording signal :4 kHz ●Frequency of Recorded Linear Sweep
DC POWER SUPPLY ;3.0 V●Recording Lebel :-10 dB Singal :4,575-3,925 Hz
DUMMY LOAD, 4ohms ●Recording Tape speed :4.75 cm fsec. ●Recording Lebel :-10 dB
●Recording Time :84.5 sec
●Recording Tape speed :4.75 cm/sec.
HEAD REPLACEMENT AND AZIMUTH ADJUSTMENT
Head replacement
●After replacement, demagnetize the heads by using a
head eraser.
●Be sure to clean the heads before attempting to make any
adjustments.
(b)
(1)
(2)
(3)
(4)
b.
(1)
(2)
(3)
c.
Head azimuth adjustment
Load the test tape (A-BEX SSC-1 584,, etc. )
for azimuth adjustment.
Playback the test tape..
Use across-tip (+)screwdriver to turn the screw for azimuth
adjustment so that the outputs maximized.
After completion of the adjustment, use thread lock (TB-1 401 B)
to secure the azimuth adjustment screw.
MOTOR SPEED ADJUSTMENT
Load the test tape (A-BEX SSC-I 582,, etc.).
Playback the test tape..
Use across-tip (-)screwdriver to turn the P501 to adjust
so that the frequency counter becomes 3,000 Hz.
CHUCKING THE MECHANISM TORQUE
(1) Playback mode .... more than 40 g-cm
(2) Fast Forward mode .more than 45 g-cm
(3) Rewind mode ...... more than 40 g-cm
PARTS LIST
E. HEAD R/P HEAD
HEAD AZIMUTH ADJ
CAUTION: Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.
PACKING &ACCESSORIES
~620 208 0512
620 219 3335
620 210 1453
620 148 6216
614 268 2098
Description
CARTONCASE
PAO,STYROFOAM
PAD,PLAIN, UNIT
POLY COVER.
POLY COVER
INSTRUCTION MANUAL
-2-

EXPLODED VIEW (CABINET &CHASSIS
6@J
62— o
8—4<!—y06 /
LYO1
-3-
w

PARTS LIST
bCABINET &CHASSIS
Ref. No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
FIXING
Ref. No.
Yol
Y02
Y03
Y04
Y05
Y06
Y07
Y08
Y09
Ylo
Part No.
614 268 1466
411 160 6304
620 219 1744
620 139 0469
614 272 4668
620 219 1751
620 122 3880
620 124 9903
620 124 4847
614 206 7048
620 108 4825
411 086 1803
620 139 3798
614 268 1435
614 268 1701
\RTS
Part No.
620 122 9295
412 044 3105
620 122 6041
620 122 6652
620 122 9004
620 123 0857
620 123 0857
620 122 9295
620 122 9295
411 099 8400
ELECTRICAL PARTS
Description
ASSY,LID,CASSETTE
PIN SPRING 1,6X18MM
STOPPER,LID CASSETTE
SPRING LID CASSETTE
CABINET,ASSY,WITH SPEAKER
BRACKET-M,SPRING
HOLDER,MICROPHONE
SHEET
CUSHION
CUSHION
KNOB VOLUME
WASHER SPRING 2MM
SPRING EARTH
ASSY,CABINET,BOTTOM
LID,BATTERY
Description
SCREW1.7X5MM
SPECIAL SCREW
SCREW,2X4MM
SCREW 1.7X3MM
SCREW
TP SCREW M1.7X3.5MM
TP SCREW M1.7X3.5MM
SCREW 1.7X5MM
SCREW 1.7X5MM
SCR PAN PCS 1.4X1.6MM
Ref. No. Part No. Description
51 620 003 3244 ]MICROPHONE
AMP P.W.BOARD ASSY
Ref. No.
61
Clol
C102
IC101
J2
J3
P501
Q101
SI
S3
S5
VR101
Part No.
620 219 3014
403 067 7201
403 067 7201
409 149 3307
620 019 2026
620 020 8512
620 218 5392
405 000 0904
620 206 3508
620 138 5991
620 206 5342
620 006 0233
Description
ASSY,PWB,AMP
MT-COMPO 0.033U J50V
MT-COMPO 0.033U J50V
IC LA4165M
lP,JACK,EARPHONE
EXT POWERSOCKET
VR,SEMI 3K N
TR DTA114YS
SWITCH,SLIDE,2K-4P-2T,
RECORD/PLAY
CONTACTSWITCH,FF/REW
SPRING,PLATE
ROTARYVOLUMEC20K
LED P.W.BOARD
Ref. No. Part No. Description
62 620 219 2949 PCB,LED
D201 407 065 3906 LED SLP-135B-51
620 124 9903 SHEET
IECHANISM (TM-T3640-sH}
....-. .. . . ... .. . .._ ...
Ref. No. Part No. Description
101 411 015 6800 RING E 1.2MM
102 620 125 1081 WASHER, 1.6X3.5X0.2MM
103 620 126 4722 REEL SUPPLY
104 620 125 1371 WASHER, 1.6X4X0.13MM
105 620 082 7935 REEL TAKE UP ASSY
106 620 125 1548 WASHER, 1.7X4X0.25MM
107 620 137 1345 SPRING BRAKE
108 620 129 7737 PLATE BRAKE
109 620 220 3676 SPRING,TENS
110 620 139 0605 SPRING
111 411 015 7609 RING E 1.5MM
112 620 130 0529 PLATE SLIDE
113 620 209 7428 ASSY,MOTOR,3V,0.3W
114 620 124 0498 CUSHION MOTOR
L15 620 219 2529 ASSY,CHASSIS
116 620 119 3541 SPACER
L17 620 122 6911 SCREW, 1,7X4MM
[18 620 083 3400 ARM COMPL
119 411 015 6800 RING E 1.2MM
120 620 128 6243 8ELT DRIVE
[31 411 015 7609 RING E 1.5MM
~32 620 130 1106 PLATE LOCK RECORD
133 620 139 0452 SPRING
134 411 015 7609 RING E 1.5MM
135 620 219 2536 LEVER RECORD ASSY
136 411 000 9304 RING E 2MM
137 411 015 7609 RING E 1.5MM
[38 411 016 0203 RING E 2.5MM
139 620 083 9211 PLATE LOCK ASSY
140 620 139 0551 SPRING
141 620 122 6133 SCREW,2X2MM
~42 620 125 7922 LUG
L43 411 019 4505 SCR PAN PCS 1.4X3MM
L44 620 016 4962 LEAF SWITCH,POWER,S1
L45 620 137 1086 SPRING SLIDE
~46 411 015 7609 RING E 1.5MM
[51 620 137 2861 SPRING
[52 620 023 3514 ERASE HEAD,HD-2
L53 411 015 6800 RING E 1.2MM
L54 411 015 7609 RING E 1.5MM
L55 620 130 0543 LEVER ERASE HEAD
~56 620 125 1371 WASHER, 1.6X4X0.13MM
L57 620 127 3113 GEAR IDLER
58 620 125 3399 WASHER
,59 620 137 1017 SPRING AZIMUTH
.60 411 088 6509 WASHER F 2X4.3X0.4MM,
R/P HEAD
.61 620 023 3989 HEAD,R/P,2T,HD-l
62 620 122 6102 SCREW,2X3MM
.63 614 226 9510 ORDERSCREW
620 123 7658 SHEET,MOTORMTG.
620 124 4847 CUSHION,MECHANISMCHASSIS
MTG.
620 219 3052 SHEET,INSULATOR,
CHASSIS MTG.
I
–4-

EXPLODED VIEW (MECHANISM )—e
lol–@
102–4 W—101
c!!!)
A–102
1o3-
1044 c!b- 105
107-Q$% &-106
108- =(
~
1y\-109
153 ,,,~ N-110
152- -
,51i!:$ /~63 */”’%:~”2 9
-Q -113
5-114
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5
138+ &-137 “\
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II I I
LA4165 O. 2.7 0. /5 /. /9 Z. 67
/.5 /.5 ,.5
—— _.__<
/.5 /.5 /.5 ,
PUY (v)
.QEc (VJ
D%Ol’l 4YS
---------- .
.3.0
z
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47K
zi
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o0. /, 7z3.0 /.8-7
ALC
~
Slool
IPOWER
I
m
I-4
%
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HOI-1
RIP HEAD
R/PP
51-2 .
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SWITCHES
1s1 IREVPLAYSW IPLAY I
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ERASE HEAO
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1.4% END SNSCR *
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I1 1 1

WIRING DIAGRAM
.. .
,--
EARPHONE JACK
-1%
J2 VOLUME
HD2-1
E. HEAD
‘c ‘v ‘U’
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Feb.1’9511900KMl Printed in Japan.
-7-
SANYO Electric Co., Ltd. d
Osaka, Japan