Sony XR-3750 / XR-C350 Service Manual ▷ View online
– 5 –
– 6 –
1-2.
EXPLODED VIEW
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MECHANISM DECK SECTION
(MG-25F-136)
(MG-25F-136)
151
A-3291-667-A CLUTCH (FR) ASSY
* 152
3-019-130-01 LEVER (LDG-A)
* 153
3-019-131-01 LEVER (LDG-B)
154
3-020-539-01 SPRING (LD-1), TENSION
155
3-020-540-01 SPRING (LD-2), TENSION
156
3-020-542-01 GEAR (LOADING FT)
157
3-341-753-11 WASHER, POLYETHYLENE
158
3-020-533-01 HOUSING
* 159
3-020-532-01 ARM (SUCTION)
160
3-020-534-01 HANGER
161
3-933-346-01 CATCHER
162
3-933-344-01 GUIDE (C)
163
3-014-798-01 SCREW (HEAD), SPECIAL
164
3-364-151-01 WASHER
165
A-3301-267-A CHASSIS ASSY (F)
166
3-017-302-01 BELT (25)
167
3-936-853-01 FLYWHEEL (F)
168
3-701-437-21 WASHER
HP901
1-500-157-21 HEAD, MAGNETIC (PLAYBACK)
M901
A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL)
#6
7-624-104-04 STOP RING 2.0 TYPE-E
#7
7-627-553-17 PRECISION SCREW +P 2X2 TYPE3
160
161
162
164
165
166
167
151
168
168
159
158
155
156
157
154
153
152
163
HP901
M901
#7
#6
A
A
2.
MAIN BOARD MODIFICATION
•
New/Former Discrimination
Former type: 1-664-751-11
New type : 1-664-751-12
New type : 1-664-751-12
[MAIN BOARD]
(COMPONENT SIDE)
2-1.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4 V and fed with regulated dc power
supply from battery and accessory terminals.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : AM (MW)
〈〈
〉〉
: TAPE PLAYBACK
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: FM
f
: AM (MW)
E
: TAPE PLAYBACK
L
: BUS AUDIO IN
• Abbreviation
CND : Canadian
3750 : XR-3750
C350 : XR-C350
3750 : XR-3750
C350 : XR-C350
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
•
p
: parts mounted on the conductor side.
•
¢
: internal component.
• b
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian
3750 : XR-3750
C350 : XR-C350
3750 : XR-3750
C350 : XR-C350
– 7 –
– 8 –
XR-3750/C350
2-2.
PRINTED WIRING BOARD – MAIN Section –
D1
F-2
D21
F-6
D91
G-2
D301
H-5
D351
H-10
D352
G-11
D501
I-4
D502
F-8
D551
F-10
D552
F-10
D553
J-6
D571
D-9
D572
F-9
¢ D581
D-12
D582
F-11
® D583
E-11
¢ D584
C-12
¢ D585
D-11
¢ D586
D-12
D601
I-11
D621
D-5
D622
F-6
D701
J-3
D702
I-3
D703
J-6
D704
J-5
D705
J-5
D706
J-5
D707
J-5
D708
J-5
D709
J-5
D721
D-8
D722
D-8
D723
D-7
D724
D-7
D731
D-6
D732
D-7
D733
D-7
D734
D-6
D781
D-11
D782
E-10
D783
E-9
D784
D-9
r D785
D-8
IC301
H-4
IC331
E-4
IC351
H-11
IC501
H-7
IC551
I-11
¢ IC581
E-11
IC611
E-11
IC751
C-7
Q21
G-6
Q22
G-7
Q171
B-4
Q181
B-4
Q271
C-4
Q281
C-4
Q351
G-11
Q352
G-10
Q353
G-10
Q354
G-10
Q355
G-10
Q551
I-4
Q571
F-9
Q581
F-11
® Q582
E-11
® Q583
F-11
Q601
H-11
Q602
I-10
Q603
I-10
Q621
F-6
Q622
F-7
Ref. No. Location
• Semiconductor
Location
® : XR-3750 only
¢ : XR-C350 only
r : E model only
¢ : XR-C350 only
r : E model only
– 12 –
2-4.
ELECTRICAL PARTS LIST
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
NOTE:
• Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used
on the set.
fied in the diagrams or the components used
on the set.
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable
• Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
Some delay should be anticipated when order-
ing these items.
• SEMICONDUCTORS
In each case, u: µ, for example:
uA. .
uA. .
: µA. .
uPA. . : µPA. .
uPB. . : µPB. .
uPC. . : µPC. .
uPD. . : µPD. .
• CAPACITORS
uF: µF
• COILS
uH: µH
MAIN
*
A-3309-731-A MAIN BOARD, COMPLETE
(XR-C350: US, Canadian)
*
A-3309-734-A MAIN BOARD, COMPLETE (XR-C350: E)
*
A-3309-735-A MAIN BOARD, COMPLETE
(XR-3750: US, Canadian)
*
A-3309-738-A MAIN BOARD, COMPLETE (XR-3750: E)
*********************
*
3-009-808-11 HEAT SINK (XR-C350)
*
3-009-809-01 BRACKET (IC)
*
3-009-815-01 HEAT SINK (BUS NON)(XR-3750)
< CAPACITOR >
C1
1-163-235-11 CERAMIC CHIP
22PF
5%
50V
C2
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C3
1-124-233-11 ELECT
10uF
20%
16V
C4
1-124-233-11 ELECT
10uF
20%
16V
C5
1-124-233-11 ELECT
10uF
20%
16V
C6
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C7
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C8
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C9
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C10
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C11
1-126-160-11 ELECT
1uF
20%
50V
C12
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C13
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C14
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C16
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C17
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C18
1-163-059-00 CERAMIC CHIP
0.01uF
10%
50V
C19
1-164-222-11 CERAMIC CHIP
0.22uF
25V
C22
1-124-584-00 ELECT
100uF
20%
10V
C23
1-124-234-00 ELECT
22uF
20%
16V
C25
1-164-489-11 CERAMIC CHIP
0.22uF
10%
16V
C26
1-163-017-00 CERAMIC CHIP
0.0047uF 5%
50V
C27
1-164-222-11 CERAMIC CHIP
0.22uF
25V
C101
1-163-263-11 CERAMIC CHIP
330PF
5%
50V
C102
1-163-263-11 CERAMIC CHIP
330PF
5%
50V
C104
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C105
1-164-489-11 CERAMIC CHIP
0.22uF
10%
16V
C106
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C107
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C108
1-126-163-11 ELECT
4.7uF
20%
50V
C109
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C121
1-163-809-11 CERAMIC CHIP
0.047uF
10%
25V (E)
C121
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
(US, Canadian)
When indicating parts by reference
number, please include the board.
number, please include the board.
C122
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
(US, Canadian)
C122
1-164-492-11 CERAMIC CHIP
0.15uF
10%
16V (E)
C123
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C124
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C141
1-124-233-11 ELECT
10uF
20%
16V
(XR-C350)
C142
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
(XR-C350)
C151
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C152
1-124-257-00 ELECT
2.2uF
20%
50V
C161
1-126-160-11 ELECT
1uF
20%
50V
C162
1-126-160-11 ELECT
1uF
20%
50V
C163
1-164-182-11 CERAMIC CHIP
0.0033uF 10%
50V
C164
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C165
1-124-233-11 ELECT
10uF
20%
16V
C166
1-164-492-11 CERAMIC CHIP
0.15uF
10%
16V
C167
1-164-492-11 CERAMIC CHIP
0.15uF
10%
16V
C168
1-124-233-11 ELECT
10uF
20%
16V
C169
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C170
1-163-287-11 CERAMIC CHIP
10PF
5%
50V
C171
1-126-163-11 ELECT
4.7uF
20%
50V
C172
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C181
1-126-163-11 ELECT
4.7uF
20%
50V
C182
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C183
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C191
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C201
1-163-263-11 CERAMIC CHIP
330PF
5%
50V
C202
1-163-263-11 CERAMIC CHIP
330PF
5%
50V
C204
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C205
1-164-489-11 CERAMIC CHIP
0.22uF
10%
16V
C206
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C207
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C208
1-126-163-11 ELECT
4.7uF
20%
50V
C209
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C241
1-124-233-11 ELECT
10uF
20%
16V
(XR-C350)
C242
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
(XR-C350)
C251
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C252
1-124-257-00 ELECT
2.2uF
20%
50V
C261
1-126-160-11 ELECT
1uF
20%
50V
C262
1-126-160-11 ELECT
1uF
20%
50V
C263
1-164-182-11 CERAMIC CHIP
0.0033uF 10%
50V
C264
1-163-037-11 CERAMIC CHIP
0.022uF
10%
25V
C265
1-124-233-11 ELECT
10uF
20%
16V
– 13 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
MAIN
C266
1-164-492-11 CERAMIC CHIP
0.15uF
10%
16V
C267
1-164-492-11 CERAMIC CHIP
0.15uF
10%
16V
C268
1-124-233-11 ELECT
10uF
20%
16V
C269
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C270
1-163-227-11 CERAMIC CHIP
10PF
0.5PF
50V
C271
1-126-163-11 ELECT
4.7uF
20%
50V
C272
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C281
1-126-163-11 ELECT
4.7uF
20%
50V
C282
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C283
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C301
1-124-234-00 ELECT
22uF
20%
16V
C302
1-124-584-00 ELECT
100uF
20%
10V
C303
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C304
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C305
1-107-823-11 CERAMIC CHIP
0.47uF
10%
16V
C306
1-163-021-11 CERAMIC CHIP
0.01uF
10%
50V
C331
1-124-584-00 ELECT
100uF
20%
10V
C332
1-124-234-00 ELECT
22uF
20%
16V
C353
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C354
1-124-233-11 ELECT
10uF
20%
16V
C355
1-124-233-11 ELECT
10uF
20%
16V
C356
1-126-934-11 ELECT
220uF
20%
16V
C357
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C358
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C359
1-164-489-11 CERAMIC CHIP
0.22uF
10%
16V
C501
1-163-235-11 CERAMIC CHIP
22PF
5%
50V
C502
1-163-234-11 CERAMIC CHIP
20PF
5%
50V
C503
1-124-584-00 ELECT
100uF
20%
10V
C504
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C505
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
C551
1-125-701-11 DOUBLE LAYER
0.047F
5.5V
C552
1-124-584-00 ELECT
100uF
20%
10V
C553
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C554
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C571
1-126-163-11 ELECT
4.7uF
20%
50V
C581
1-162-638-11 CERAMIC CHIP
1uF
16V
(XR-C350)
C582
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V
C583
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
(XR-C350)
C602
1-164-222-11 CERAMIC CHIP
0.22uF
25V
C611
1-124-233-11 ELECT
10uF
20%
16V
C612
1-124-233-11 ELECT
10uF
20%
16V
C613
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
C614
1-124-233-11 ELECT
10uF
20%
16V
C615
1-124-233-11 ELECT
10uF
20%
16V
C616
1-124-233-11 ELECT
10uF
20%
16V
C617
1-124-233-11 ELECT
10uF
20%
16V
C621
1-124-233-11 ELECT
10uF
20%
16V
C622
1-163-133-00 CERAMIC CHIP
470PF
5%
50V
C623
1-124-589-11 ELECT
47uF
20%
16V
C701
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
C702
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
C703
1-163-077-00 CERAMIC CHIP
0.1uF
10%
25V
C751
1-126-096-11 ELECT
10uF
20%
35V
C752
1-107-682-11 CERAMIC CHIP
1uF
10%
16V
C754
1-124-233-11 ELECT
10uF
20%
16V
C755
1-126-096-11 ELECT
10uF
20%
35V
C781
1-126-936-11 ELECT
3300uF
20%
16V
C782
1-163-181-00 CERAMIC CHIP
100PF
5%
50V
C783
1-163-181-00 CERAMIC CHIP
100PF
5%
50V
C785
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C786
1-165-319-11 CERAMIC CHIP
0.1uF
50V
C901
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C906
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V (E)
C906
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
(US, Canadian)
C907
1-163-009-11 CERAMIC CHIP
0.001uF
10%
50V (E)
C907
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
(US, Canadian)
C908
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C909
1-163-181-00 CERAMIC CHIP
100PF
5%
50V
C910
1-163-251-11 CERAMIC CHIP
100PF
5%
50V
C912
1-164-182-11 CERAMIC CHIP
0.0033uF 10%
50V
C913
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
C914
1-164-004-11 CERAMIC CHIP
0.1uF
10%
25V
< CONNECTOR >
CN301
1-766-260-11 CONNECTOR, FFC/FPC (ZIF) 7P
* CN351
1-506-995-11 PIN, CONNECTOR (PC BOARD) 13P
CN581
1-580-907-31 PLUG, CONNECTOR (BUS CONTROL IN)
(XR-C350)
CN701
1-764-422-11 PLUG, CONNECTOR 12P
CN781
1-774-701-11 PIN, CONNECTOR 16P
< CONPOSITION CIRCUIT BLOCK >
CP1
1-519-504-11 GAP, DISCHARGE
< DIODE >
D1
8-719-991-65 DIODE SB02W03C
D21
8-719-423-10 DIODE MA8100-M-TX
D91
8-719-420-90 DIODE MA8051-M
D301
8-719-404-49 DIODE MA111
D351
8-719-035-91 DIODE MA4091-H (TA)
D352
8-719-404-49 DIODE MA111
D501
8-719-400-20 DIODE MA152WA
D502
8-719-911-19 DIODE 1SS119 (E)
D551
8-719-400-20 DIODE MA152WA
D552
8-719-404-49 DIODE MA111
D553
8-719-404-49 DIODE MA111
D571
8-719-034-94 DIODE MA4180-M (QZ)
D572
8-719-110-03 DIODE RD7.5ESB2
D581
8-719-017-62 DIODE MA8068-L-TX (XR-C350)
D582
8-719-057-80 DIODE MA8160-M-TX
D583
8-719-422-76 DIODE MA8075-M (XR-3750)
D584
8-719-035-74 DIODE MA4062-M (TA)(XR-C350)
D585
8-719-035-74 DIODE MA4062-M (TA)(XR-C350)
D586
8-719-035-74 DIODE MA4062-M (TA)(XR-C350)
D601
8-719-423-32 DIODE MA8120-M
D621
8-719-035-54 DIODE MA4039-M (TA)
D622
8-719-911-19 DIODE 1SS119
D701
8-719-035-74 DIODE MA4062-M (TA)
D702
8-719-035-74 DIODE MA4062-M (TA)
D703
8-719-035-74 DIODE MA4062-M (TA)
D704
8-719-035-74 DIODE MA4062-M (TA)
D705
8-719-035-74 DIODE MA4062-M (TA)
D706
8-719-035-74 DIODE MA4062-M (TA)
D707
8-719-034-94 DIODE MA4180-M (QZ)
D708
8-719-035-74 DIODE MA4062-M (TA)
Click on the first or last page to see other XR-3750 / XR-C350 service manuals if exist.