Sony XR-C750RDS / XR-C850RDS / XR-C850RW Service Manual ▷ View online
– 56 –
IC301 CXA1946BQ
IC350 CXA1846N (XR-C850RDS)
36
35
34 33
31
30
25
26
27
28
29
32
1
2
3
4
5
6
7 8 9 10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
37
38
39
40
41
42
43
44
45
46
47
48
GAIN12
GAIN11
IN11
IN12
IN13
IN14
IN21
IN22
IN23
IN22
IN23
IN24
GAIN21
GAIN22
FNTO1
REO1
REO1
CE
CLK
CLK
DGND
GND
VCC
VCT
DATA
TIMER
REO2
FNTO2
GAIN13
4
LDLC1
LDHC1
INAO1
VRIN1
VOUT1
TIN1
TCLC1
TCLC11
TCLC12
TCO1
FDIN1
GAIN234
LDLC2
LDHC2
INAO2
VRIN2
VOUT2
TIN2
TCHC2
TCLC21
TCLC22
TCO2
FDIN2
LOUD
VOLUME
8dB STEP
VOLUME
1dB STEP
VCTBUFF
VCTBUFF
VCTBUFF
TONE
FADER
INPUT SW
LATCH
LATCH
CONTROL
ZCDET
SHIFT
REGISTER
45k
45k
VCTBUFF
VCTBUFF
VCTBUFF
VOLUME
1dB STEP
LOUD
INPUT SW
TONE
FADER
VOLUME
8dB STEP
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
1dB STEP
VOLUME
8dB STEP
VOLUME
1dB STEP
VOLUME
8dB STEP
VOLUME
VCT
BUFFER
LATCH
SHIFT
REGISTER
LATCH
CONTROL
ZC
DET
+
–
+
–
–
INP 1
INN 1
VCT 1
INAO 1
VRIN 1
OUT 1
N.C.
GND
VCT
VCC
INP 2
INN 2
VCT 2
INAO 2
VRIN 2
OUT 2
CE
DATA
CLK
INIT
– 57 –
IC310, 410 TDA8574
IC370, 470 TA2050F (XR-C850RDS)
IC571 BA8270F
IC351, 352 BU4066 (XR-C850RDS)
REFERENCE
REFERENCE
VCCL
VCCL
VCCL
INL
SVRL
INML
INMR
SVRR
INR
VCCR
VCCR
VCCR
BUFFER
BUFFER
BUFFER
BUFFER
LIFT
AMP
SIGNAL
AMP
LIFT
AMP
SIGNAL
AMP
CL+
CL–
LGND
OUTL
OUTR
RGND
CR–
CR+
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
I/O 1
O/I 1
O/I 2
I/O 2
C2
C3
VSS
VDD
C1
C4
I/O 4
O/I 4
O/I 3
I/O 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 NC
IN(–)1
IN(+)1
IN(+)2
IN(–)2
NC
NC
NC
OUT1
VREF
NC
GND
NC
VCC
NC
OUT2
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
3
4
5
6
2
1
10
9
8
7
11
12
13
14
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
– 58 –
IC601 BA3918-V3
1
2
3
4
5
6
7
8
9
10
11
12
GND
FM 8.7V
AM 8.7V
COM 8.7V
ANT
VCC
AMP
VDD 5.6V
STB
MODE 1
MODE 2
N.C.
REGULATOR
EXCESSIVE
VOLTAGE
PROTECTOR
VCC
VCC
VCC
VCC
VCC
VCC
– 59 –
SECTION 7
EXPLODED VIEWS
N
N
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• Abbreviation
G : German model
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Hardware (# mark) list and accessories
and packing materials are given in the
last of this parts list.
last of this parts list.
7-1. CHASSIS SECTION
1
4
5
7
6
13
10
9
12
20
14
17
18
15
3
8
11
#3
#3
#1
#3
#3
#1
#1
#2
#3
#3
#3
#3
#3
MG-52B-135
TU10
A
A
21
#3
#3
15
#3
19
22
16
2
F901
23
D
D
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 1
X-3373-362-1 COVER ASSY
2
1-776-527-41 CORD (WITH CONNECTOR) (ISO) (POWER)
3
3-919-171-01 SCREW (2.6X6) (C TIGHT)
4
X-3373-376-1 BRACKET (GEAR) ASSY
5
3-011-170-01 GEAR (HOLDER)
6
3-341-752-11 WASHER, POLYETHYLENE
7
3-953-235-31 DAMPER, OIL
8
3-913-076-01 SPRING (C DOOR), TORSION
9
3-010-993-01 PLATE (C DOOR), LIGHT GUIDE
10
3-010-996-01 BUTTON (EJECT)
* 11
1-665-379-11 SUB BOARD
12
X-3373-374-1 LOCK ASSY
13
X-3373-542-1 PANEL SUB ASSY, SUB
* 14
3-355-209-01 PLATE (B), GROUND
15
3-915-923-01 SCREW, GROUND POINT
* 16
A-3309-956-A MAIN BOARD, COMPLETE (C850RDS:AEP,UK)
* 16
A-3309-962-A MAIN BOARD, COMPLETE (C850RDS:G)
* 16
A-3309-964-A MAIN BOARD, COMPLETE (C750RDS:AEP,UK)
* 16
A-3309-966-A MAIN BOARD, COMPLETE (C750RDS:G)
* 17
3-011-078-01 BRACKET (POWER IC)
* 18
3-011-090-01 BRACKET (AMP)
* 19
3-011-077-01 HEAT SINK (C850RDS)
* 19
3-011-077-11 HEAT SINK (C750RDS)
* 20
3-012-196-01 INSULATOR (C750RDS)
* 20
3-012-211-01 INSULATOR (C850RDS)
* 21
X-3373-384-1 CHASSIS ASSY
22
3-922-165-91 DOOR, CASSETTE
23
1-782-246-31 CORD (WITH CONNECTOR)
(SUB W.OUT/LINE OUT) (C850RDS)
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU10
A-3282-012-A TUNER UNIT (TUX-006(E)) (C850RDS:G)
TU10
A-3282-029-A TUNER UNIT (TUX-006/2(E)) (EXCEPT C850RDS:G)
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