Sony CDX-757MX (serv.man2) Service Manual ▷ View online
37
CDX-757MX
IC601
CXD9684R-006
2
1
RESET
MIMD
3
AD0
4
AD1
5
MIDIO
6
MICK
7
AD2
8
VDDT
9
SDO
10 AD3
11 AD4
12 SDI0
13 BCKIA
14 LRCKIA
15 AD5
16 CE
17
OE
18
VDD
19
STANDBY
20
VSS
21
VSSL
22
VRAL
23
LO
24
VDAL
25
VDAR
26
RO
27
VRAR
28
VSSR
29
TESTP
30
CKS
31
AD12
32
AD11
64
VSSX
63
XO
62
XI
61
V
DDX
60
CKO
59
V
DDP
58
VCOI
57
PDO
56
VSSP
55
IO7
54
IO6
53
IO5
52
VDD
51
IO4
50
IO3
49
IO2
48
VSS
47
IO1
46
IO0
45
AD15
44
AD16
43
WR
42
AD14
41
AD13
40
VSS
39
REQ
38
AD6
37
AD7
36
AD8
35
VDDT
34
AD9
33
AD10
TIMING
GENERATOR
VCO
PROG.
START
DIT
GENERAL
INPUT PORT
INTERRUPT
CONTROL
SRAM I/F
I-BUS
TIMER
DAC
DAC
BUS
SWITCH
Y-POINTER
REGISTER
X-POINTER
REGISTER
C-POINTER
REGISTER
ERAM
2k WORD
XRAM
4k WORD
YRAM
4k WORD
CROM
4k WORD
x3
ALU
A2
A3
AX
AY
ROUND & LIMIT
MAC
A0
A1
MX
MY
MZ
IINSTRUCTION
DECODER
PROM
4kx2+2k
=10k WORD
40 BIT
PRAM
256 WORD
PROGRAM
CONTROL
Y-BUS
X-BUS
GENERAL
OUTPUT
PORT
FLAG
ADDRESS
CALC.
2 SETS
MICROCOM.
I/F
AUDIO
I/F
REGISTER
X0 X1 X2
Y0 Y1 Y2
Y0 Y1 Y2
ROUND & LIMIT
38
CDX-757MX
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-047-852-01 DAMPER (T)
2
3-255-095-11 CASE (LOWER. T)
* 3
3-024-065-01 CUSHION (EJECT-T)
4
X-3375-357-1 ARM (FLT) ASSY
5
1-684-650-12 JACK BOARD
6
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
7
A-3274-196-A MAIN BOARD, COMPLETE
8
1-676-340-12 JACK FLEXIBLE BOARD
9
1-676-339-12 MAIN FLEXIBLE BOARD
10
1-684-651-12 SWITCH BOARD
12
X-3381-744-1 DOOR (M) ASSY
13
3-229-226-21 PANEL, FRONT
14
3-022-007-02 BUTTON (EJT) (Z)
15
3-041-218-21 ESCUTCHEON (T)
* 16
3-022-012-01 HEAT SINK (T)
17
3-042-244-11 SCREW (T)
18
3-038-166-01 SPRING (FL), TENSION COIL
19
3-047-886-11 LEVER (FLT. 838)
20
3-237-609-11 CASE (UPPER. T)
22
3-935-636-11 SCREW (FP)
23
X-3375-360-2 ARM (FRT) ASSY
RV202
1-227-137-11 RES, VAR, SLIDE 10K
(ELEVATOR HEIGHT SENSOR)
#2
7-685-792-09 SCREW +PTT 2.6X6 (S)
#3
7-685-781-09 SCREW +PTT 2X4 (S)
• 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
number in the exploded views are not supplied.
• Accessories are given in the last of the
electrical parts list.
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
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
7-1.
CASE SECTION
12
13
15
16
#2
#3
#2
#2
#2
MG-251B-137
RV202
#3
not supplied
not supplied
not supplied
B
A
#2
A
B
14
18
20
19
18
9
10
22
17
19
7
8
22
23
4
6
5
1
3
2
1
not supplied
not supplied
main board
39
CDX-757MX
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
X-3378-091-2 CHASSIS (U. S) SUB ASSY
102
3-024-161-01 SPRING (SUT)
103
3-011-997-01 SPRING (STOPPER. LOWER)
#3
7-685-781-09 SCREW +PTT 2X4 (S)
7-2.
MECHANISM DECK SECTION-1
(MG-251B-137)
(MG-251B-137)
#3
#3
#3
mechanism deck section-3
101
102
103
mechanism deck section-2
40
CDX-757MX
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
151
3-024-170-01 SPRING (SB), TENSION
* 152
3-040-790-02 BRACKET (EVM. S)
153
X-3378-092-8 CHASSIS (D. S) SUB ASSY
M104
A-3301-123-A ELJ MOTOR ASSY (ELEVATOR)
#3
7-685-781-09 SCREW +PTT 2X4 (S)
7-3.
MECHANISM DECK SECTION-2
(MG-251B-137)
(MG-251B-137)
151
152
153
#3
M104
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