Sony XR-M500R / XR-M550 Service Manual ▷ View online
50
Pin No.
Pin Name
I/O
Description
111
P46/AN6/DA0
I
Not used (fixed at “L”)
112
P47/AN7/DA1
I
Not used (fixed at “L”)
113
AVSS
—
Ground terminal (for A/D converter)
114
VSS
—
Ground terminal
115 to 122
P17 to P10
O
Not used (open)
123
MD0
I
Setting terminal for the CPU operational mode (fixed at “H”)
124
MD1
I
Setting terminal for the CPU operational mode (fixed at “H”)
125
MD2
I
Setting terminal for the CPU operational mode (fixed at “H”)
126 to 128
PG0 to PG2
O
Not used (open)
51
(1)
SUB PANEL SECTION
SECTION 8
EXPLODED VIEWS
• 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.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
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
• Please refer to servicing notes (page 3) for
system of TYPE A, B, C and D.
2
Front Panel ass'y
F1
#1
#1
#1
#1
3
5
7
9
8
7
10
11
12
6
4
1
MG-25E-136
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-3378-724-1 PANEL (XR) SUB ASSY, SUB (M500R)
1
X-3378-725-1 PANEL (XR) SUB ASSY, SUB (M550)
2
3-044-475-01 DOOR, CASSETTE (M550)
2
3-044-475-11 DOOR, CASSETTE (M500R)
3
3-044-482-01 SPRING (CASSETTE DOOR)
4
3-044-478-01 BUTTON (EJECT) (Z)
5
1-677-721-11 SUB BOARD
6
1-792-584-11 CABLE, FLAT
7
3-045-756-01 SCREW (PANEL)
* 8
3-041-156-11 COVER
9
1-792-194-11 CORD (WITH CONNECTOR) (POWER) (M550)
9
1-776-527-71 CORD (WITH CONNECTOR) (ISO) (POWER)
(M500R)
* 10
3-045-762-01 COVER (FLEXIBLE)
* 11
3-048-640-01 SHEET (SUB PANEL)
* 12
3-049-388-01 CUSHION (SUB PANEL)
F1
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE)
52
(2)
FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
X-3378-768-1 PANEL (MAIN) ASSY, FRONT
52
3-045-781-01 BUTTON (RESET) (MAIN)
53
3-045-702-01 BRACKET (LCD) (MAIN)
55
1-694-685-11 CONDUCTIVE BOARD, CONNECTION
* 56
3-045-703-02 PLATE (LCD) MAIN, LIGHT GUIDE
* 57
3-045-705-02 SHEET (MAIN), REFLECTION
58
1-694-686-11 CONDUCTIVE BOARD, CONNECTION
59
1-694-687-11 CONDUCTIVE BOARD, CONNECTION
* 60
3-045-706-01 BRACKET (LCD) (SUB)
* 61
X-3378-710-1 BRACKET (PANEL) ASSY
* 63
3-045-708-01 SHEET (SUB), DIFFUSION
* 64
3-045-707-01 PLATE (LCD) SUB, LIGHIT GUIDE
* 65
A-3283-018-A DISPLAY BOARD, COMPLETE (M550)
* 65
A-3283-019-A DISPLAY BOARD, COMPLETE (M500R)
66
3-045-726-01 BUTTON (SOURCE)
67
3-045-725-01 BUTTON (+/-)
68
3-045-727-01 PLATE (RING), LIGHT GUIDE
69
3-045-730-01 BUTTON (SEEK) (DSO) (M500R)
(DISC +,> M, - DISC, .)
69
3-045-739-01 BUTTON (SEEK) (M550)
(DISC +,> M, - DISC, .)
70
3-045-734-01 CUSHION (SEEK)
71
3-044-469-11 PANEL (SUB), FRONT (M500R)
71
3-044-469-21 PANEL (SUB), FRONT (M550)
72
3-045-733-01 BUTTON (CLOSE)
73
3-045-731-01 BUTTON (ENTER)
(LIST, ENTER, SOUND, MENU)
74
3-045-724-01 BUTTON (6KEY) (M550) (1, 2, 3, 4, 5, 6)
74
3-045-724-11 BUTTON (6KEY) (M500R)
(AF, 1, 2, 3, 4, 5, 6, TA)
75
3-045-728-11 BUTTON (MODE) (DSPL, MODE o)
76
3-045-729-01 BUTTON (OFF)
77
3-045-735-01 BUTTON (OPEN)
* 78
3-045-704-01 SHEET (MAIN), REFLECTION
80
3-045-732-01 BUTTON (D-BASS) (M500R)
81
1-677-340-11 FLEXIBLE BOARD
LCD901 1-803-913-11 DISPLAY PANEL, LIQUID CRYSTAL
LCD902 1-803-914-11 DISPLAY PANEL, LIQUID CRYSTAL
51
#3
#6
LCD901
LCD902
#6
M500R
52
53
56
57
58
59
61
60
63
77
78
81
55
55
64
65
66
69
68
76
70
71
72
73
80
74
75
67
Ver 1.1
53
(3)
MAIN BOARD SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 101
X-3378-559-1 CHASSIS (XR) ASSY
102
A-3315-066-A SHAFT ASSY, DRIVE
103
3-045-722-01 CAM (L)
* 104
X-3378-713-1 BRACKET (L) ASSY
105
X-3378-717-1 ARM (B-L) ASSY
106
X-3378-715-1 ARM (A-L) ASSY
107
A-3326-298-A SWITCH BOARD, COMPLETE
108
3-342-940-01 WASHER (M)
109
3-045-713-01 GEAR (A)
* 110
X-3378-711-1 BRACKET (MOTOR) ASSY
111
3-045-715-01 GEAR (C)
112
3-376-464-11 SCREW(+PTT 2.6X6),GROUND POINT
113
3-045-759-01 HEAT SINK (REG)
114
3-019-565-01 BRACKET (IC)
115
1-777-246-31 CORD (WITH CONNECTOR) (ANT)
* 116
3-049-689-01 SHEET, INSULATING
117
1-790-375-21 CORD (WITH CONNECTOR)
(SUB OUT(MONO)) (M550)
* 118
3-044-471-01 HEAT SINK (M550)
* 118
3-044-471-11 HEAT SINK (M500R)
* 119
3-047-525-01 PLATE (BUS, BAR), GROUND
* 120
A-3294-887-A MAIN BOARD, COMPLETE (M550)
* 120
A-3294-889-A MAIN BOARD, COMPLETE (M500R: TYPE C)
* 120
A-3294-890-A MAIN BOARD, COMPLETE (M500R: TYPE A)
* 120
A-3294-891-A MAIN BOARD, COMPLETE (M500R: TYPE D)
* 120
A-3294-892-A MAIN BOARD, COMPLETE (M500R: TYPE B)
121
3-045-723-01 CAM (R)
* 122
X-3378-714-1 BRACKET (R) ASSY
123
X-3378-718-1 ARM (B-R) ASSY
124
X-3378-716-1 ARM (A-R) ASSY
125
3-045-714-01 GEAR (B)
126
3-048-645-01 SPRING (ARM L)
127
3-048-644-01 SPRING (ARM R)
M601
X-3378-769-1 MOTOR ASSY (FRONT PANEL OPEN/CLOSE)
TUX100 A-3220-738-A FM/AM TUNER UNIT (TUX-020)
#8
#8
#1
#2
#8
#1
#8
#4
#9
#1
#1
#2
#2
#10
TUX100
#2
#2
#2
M601
#8
#2
#1
#8
124
101
116
102
103
108
108
108
109
110
107
112
125
111
112
113
114
119
118
104
105
106
126
127
123
122
120
115
117
121
M550
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