Page 1
- 3-1 - - 3-2 -
SECTION 3. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION
286
287
286
264
355
267
271
262
260
454
354
352
351
A26
A41
257
274
291
292
272
310
454
305
330
451
302
303
354
454
454
A43
454
800
A00
452
288
454
451
454
301
A46
453
353
278
280
279
277
273
452
A48
NOTE) Refer to “SECTION 5 REPLACEMENT
PARTS LIST” in order to look for the
part number of each part.
Page 2
- 3-3 - - 3-4 -
• TAPE DECK MECHANISM: AUTO STOP DECK(OPTIONAL)
NOTE) Refer to “SECTION 5 REPLACEMENT
PARTS LIST” in order to look for the
part number of each part.
LOCA. NO PART NO. SPECIFICATION
A00 6730R-G007A CWL44FF25 TOKYO PIGEON L-DOUBL
A01 6768R-UP01A 50-093-4249 PIGEON UNIT PCB AS
001 6768R-BP01B 02-084-4202 PIGEON BELT / FELT C
002 6768R-BP01A 02-084-4204 PIGEON BELT / FELT C
003 6768R-AP01D 50-239-4027 PIGEON ARM CWL44
004 6768R-AP01E 50-239-4026 PIGEON ARM CWL44
005 6768R-SP01E 01-082-4599 PIGEON SPRING CWL4
006 6768R-QP01A 50-093-4316 PIGEON MOTOR(ASSY)
007 6768R-GP01A 50-093-4063 PIGEON GEAR CWL44
008 6768R-SP01F 01-082-4598 PIGEON SPRING CWL4
009 6768R-MP01C 50-219-4014 PIGEON MOLD CWL44
010 6768R-SP01C 01-082-4652 PIGEON SPRING CWL4
011 6768R-SP01A 01-081-4601 PIGEON SPRING CWL4
013 6768R-SP01B 01-082-4651 PIGEON SPRING CWL4
014 6768R-SP01G 01-082-4597 PIGEON SPRING CWL4
015 6768R-AP01A 50-268-3016 PIGEON ARM CWL44
016 6768R-GP01C 50-093-4069 PIGEON GEAR CWL44
017 6768R-AP01C 50-239-4072 PIGEON ARM CWL44
018 6768R-GP01D 50-222-4007 PIGEON GEAR CWL44
019 6768R-SP01H 01-081-4657 PIGEON SPRING CWL4
020 6768R-BP01C 02-083-4188 PIGEON BELT / FELT C
021 6768R-LP01A 50-223-4254 PIGEON PULLEY / FLYW
022 6768R-VP01A 50-093-4125 PIGEON SOLENOID CW
023 6768R-GP01B 50-221-3009 PIGEON GEAR CWL44
024 6768R-AP01B 50-139-4292 PIGEON ARM CWL44
025 6768R-JP01B 50-093-3361 PIGEON PULLEY / FLYW
026 6768R-SP01D 01-080-4609 PIGEON SPRING CWL4
027 6768R-MP01B 50-093-3036 PIGEON MOLD CWL44
028 6768R-RP01A 22-027-41054 PIGEON ROLLER CWL
029 6768R-MP01A 50-219-4033 PIGEON MOLD CWL44
030 6768R-HP01A TC881CB067B PIGEON HEAD CWL44
031 6768R-SP01J 01-081-4605 PIGEON SPRING CWL4
032 6768R-HP01B TC231F PIGEON HEAD CWL44
033 6768R-JP01A 50-093-3360 PIGEON PULLEY / FLYW
400 6768R-CP01A GSE10A2003 PIGEON SCREW CWL44
401 6768R-CP01B GSE20A2005 PIGEON SCREW CWL44
402 6768R-CP01C GSE10A2004 PIGEON SCREW CWL44
403 6768R-CP01D GSL10A1704 PIGEON SCREW CWL44
404 6768R-CP01E GSP10A2603 PIGEON SCREW CWL44
405 6768R-CP01F GSP11A2012 PIGEON SCREW CWL44
406 6768R-CP01G GSE20A2004 PIGEON SCREW CWL44
407 6768R-CP01H GSL20A2005 PIGEON SCREW CWL44
408 6768R-CP01J 03-300-4127 PIGEON SCREW CWL44
409 6768R-CP01K GSL20A2008 PIGEON SCREW CWL44
501 6768R-WP01A GWM19S035035 PIGEON WASHER CWL
502 6768R-WP01B GWM17S050035S PIGEON WASHER CW
503 6768R-WP01C GWM40X075010 PIGEON WASHER CWL
504 6768R-WP01D GWP21X045020 PIGEON WASHER CWL
505 6768R-WP01E GWP12X030040S PIGEON WASHER CW
400
404
001
002
003
400
011
401
503
009
401
010
406
004
502
501
013
409
408
407
032
005
031
030
007
008
014
015
026
027
401
028
029
400
006
016
018
017
402
403
020
019
A01
023
024
504
021
505
022
405
025
Page 3
3-5 3-6
• CD MECHANISM
416
151
152
155
184
185
184
A35
421
A30
421
168
417
417
153
159
A26
169
154
158
157
156
418
416
419
165
162
166
420
167
177
176
164
163
175
170
171
174
416
173
172
417
NOTE) Refer to “SECTION 5 REPLACEMENT
PARTS LIST” in order to look for the
part number of each part.
Page 4
2-12 2-13
SCHEMATIC DIAGRAMS
• AMP/POWER SCHEMATIC DIAGRAM
Page 5
2-18 2-19
• CDP SCHEMATIC DIAGRAM
Page 6
2-16 2-17
• TUNER/DECK SCHEMATIC DIAGRAM
Page 7
2-14 2-15
• FRONT SCHEMATIC DIAGRAM
Page 8
2-10 2-11
BLOCK DIAGRAM
Page 9
- 2-1 -
TAPE DECK ADJUSTMENT
1. AZIMUTH ADJUSTMENT
Figure 1. Azimuth Adjustment Connection Diagram
CH1 CH2
Speaker Out
Playback Mode
Head
Test Tape
MTT-114
L ch
R ch
GND
Dual-trace
synchroscope
Electronic
Voltmeter
L out
R out
Unit
SECTION 2. ELECTRICAL
ADJUSTMENTS
This set has been aligned at the factory and normally will not require further adjustment. As a result, it is not
recommended that any attempt is made to modificate any circuit. If any parts are replaced or if anyone tampers
with the adjustment, realignment may be necessary.
IMPORTANT
1. Check Power-source voltage.
2. Set the function switch to band being aligned.
3. Turn volume control to minimum unless otherwise noted.
4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified.
5. Keep the signal input as low as possible to avoid AGC and AC action.
Deck Mode Test Tape Test Point Adjustment Adjust for
A Deck Playback MTT-114 Speaker Out
DECK Screw
Maximum
Azimuth Screw
B Deck Playback MTT-114 Speaker Out Azimuth Screw Maximum
2. MOTOR SPEED ADJUSTMENT
Figure 2. Motor Speed Adjustment Connection Diagram
Head
Playback Mode
Unit
Speaker Out
GND
L out
R out
Record/Playback
head
Test Tape
MTT-111
Frequency Counter
Deck Mode Test Tape Test Point Adjustment Adjust for Remark
Normal Speed MTT-111 Speaker Out VR201 3kHz ± 1% A Deck
HI-Speed MTT-111 Speaker Out more than 5.4kHz HI-Speed Dubbing Mode
Page 10
- 2-2 -
3. RECORD BIAS ADJUSTMENT
Head
Unit
PN202
GND
Record/Playback
head
Test Tape
MTT-5511
Record/Playback
and Pause Mode
Frequency Counter
Deck Mode Test Tape Test Point Adjustment Adjust for
Rec/Pause MTT-5511
ERASE HEAD
L203
60kHz±5kHz (Auto stop)
WIRE(PN202) 85kHz±5kHz(Auto Reverse)
Figure 3. Record Bias Adjustment Connection Diagram
4. TUNER ADJUSTMENT
Figure 4. Tuner(S curve) Adjustment Connection Diagram
Unit
Signal Generator
GND
Electronic
OSCILLOSCOPE
FM Antenna
Terminal
Speaker
Item Test Point Adjustment Adjust for
DC Voltage Checker IC Pin 26, 28 L106 0V±50mV
Item Test Point Adjustment Adjust for
AM IF SPEAKER OUT L110 OUTPUT MAXZMUM
(FM)
(AM)
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