Sony CX-LEM550 / XR-EM550 Service Manual ▷ View online
33
CX-LEM550
Pin No.
Pin Name
I/O
Description
73
TU CE
O
Chip enable signal output to the FM/AM tuner unit
74
TU CLOCK
O
Serial data transfer clock signal output to the FM/AM tuner unit
75
TU DI
I
Serial data input from the FM/AM tuner unit
76
TU DO
O
Serial data output to the FM/AM tuner unit
77
TU MUTE
O
Tuner muting on/off control signal output to the FM/AM tuner unit
78
TA MO
O
Capstan/reel motor on/off control signal output terminal “H”: motor on
79
TA RP
O
Recording/playback selection signal output terminal
“H”: playback mode, “L”: recording mode
80
TA BIAS
O
Recording bias on/off selection signal output terminal “H”: bias on, “L”: bias off
81
TA SOL
O
Trigger plunger on/off control signal output terminal “H”: plunger on
82
AMP-STBY
O
Standby control signal output to the power amplifier
83
AMP MUTE
O
Tuner muting on/off control signal output to the power amplifier
84
AU MUTE
O
Line muting on/off control signal output terminal
85
POWER ON
O
Power relay drive signal output terminal “H”: on
86
NC
—
Not used
87
ST-BY LED
O
LED drive signal output terminal
88
DSG/I-BASS LED
O
LED drive signal output terminal
89
VSS2
—
Ground terminal
90
VDD2
—
Power supply terminal (+3.1V)
91
CD LED
—
Not used
92
TU LED
—
Not used
93
TA LED
—
Not used
94
MD CD ON LED
O
Power on/off control signal output for the CD mechanism section
95
CD DATA
O
Serial data output to the CD DSP
96
SENS
I
Internal status (SENSE) signal input from the CD DSP
97
CD-CLK
O
Serial data transfer clock signal output to the CD DSP
98
MI-DIO-O
O
Serial data output to the MP3 decoder
99
MI-DIO-I
I
Serial data input from the MP3 decoder
100
MI-CK
O
Serial data transfer clock signal output to the MP3 decoder
34
CX-LEM550
SECTION 8
EXPLODED VIEWS
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Items marked “*” are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
are seldom required for routine service.
Some delay should be anticipated when
ordering these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Abbreviation
E51
E51
: Chilean and peruvian models
KR
: Korea model
SP
: Singapore model
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet’s Color
Ref. No.
Part No.
Description
Remark
1
A-1059-097-A POWER BOARD, COMPLETE (KR)
1
A-4752-018-A POWER BOARD, COMPLETE (SP, E51)
2
A-4750-621-A AMP BOARD, COMPLETE
3
A-4752-045-A MAIN BOARD, COMPLETE
4
not supplied
0 5
1-769-079-23 CORD, POWER (KR)
0 5
1-769-744-52 CORD, POWER (EXCEPT KR)
6
1-693-626-11 TUNER (FM/AM) (AEP, UK)
6
1-693-628-11 TUNER (FM/AM) (SP, E51)
6
1-693-629-11 TUNER (FM/AM) (KR)
7
4-247-752-01 RUBBER, FOOT
8
4-253-221-51 CABINET, REAR (BLACK)
8-1.
OVERALL SECTION
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
8
4-253-221-61 CABINET, REAR (EXCEPT BLACK)
9
1-469-636-11 CORE, FERRITE (ESD-R-25SD) (AEP, UK, KR)
M301
1-787-103-11 FAN, DC
0 T902
1-443-274-11 TRANSFORMER, POWER (AEP, UK)
0 T902
1-443-308-11 TRANSFORMER, POWER (E51, SP)
0 T902
1-443-365-11 TRANSFORMER, POWER (KR)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#2
7-685-548-14 SCREW +BTP 3X12 TYPE2 N-S
#3
7-685-647-14 SCREW +BVTP 3X10 TYPE2 N-S
#4
7-685-649-79 SCREW +BVTP 3X14 TYPE2 N-S
#5
7-685-659-79 SCREW +BVTP 4X8 TYPE2 IT-3
#8
not supplied
Ref. No.
Part No.
Description
Remark
1
2
4
7
8
not supplied
T902
not supplied
not supplied
not supplied
not supplied
M301
top panel assy
front panel assy-1
#1
#1
#1
#5
#2
#2
#2
#8
a
a
#8
#3
#3
#3
#2
#4
#1
#1
3
6
5
9
35
CX-LEM550
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-242-079-01 KNOB (RTRY VOL)
52
1-757-791-11 WIRE (FLAT TYPE) (16 CORE)(SILVER)
52
1-773-019-11 WIRE (FLAT TYPE) (15 CORE)(BLACK)
53
1-828-965-11 WIRE (FLAT TYPE) (11 CORE)(SP, E51, KR)
53
1-828-985-11 WIRE (FLAT TYPE) (15 CORE) (AEP, UK)
54
A-4752-047-A CONTROL BOARD, COMPLETE (AEP, UK)
54
A-4752-932-A CONTROL BOARD, COMPLETE (E51)
54
A-4753-425-A CONTROL BOARD, COMPLETE (SP, KR)
55
1-773-220-11 WIRE (FLAT TYPE) (25 CORE)
56
1-790-378-11 WIRE (FLAT TYPE) (8 CORE) (SILVER)
56
1-828-007-11 WIRE (FLAT TYPE) (8 CORE) (BLACK)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
8-2.
FRONT PANEL ASSY-1
not supplied
(HP board)
(HP board)
51
front panel assy-2
not supplied
not supplied
not supplied
54
55
53
#1
#1
#1
#1
#1
not supplied
56
52
36
CX-LEM550
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
8-3.
FRONT PANEL ASSY-2
101
X-2021-358-1 LID CASS ASSY (X) (BLACK)
101
X-4956-362-1 LID, CASS ASSY (X) (SILVER)
102
4-254-959-01 SPRING, CASSETTE
103
4-245-018-01 HOLDER (CASSETTE)
104
4-238-631-01 TAPE SPRING
105
4-247-752-01 RUBBER, FOOT
106
X-2021-357-1 FRONT PANEL ASSY (X) (BLACK)
106
X-4956-361-1 FRONT PANEL ASSY (X) (SILVER)(AEP, UK)
106
X-4956-461-1 FRONT PANEL ASSY (X) (SILVER)(SP, E51, KR)
107
4-231-841-01 SPRING (HEART CAM-B)
108
4-231-825-01 CAM (B), HEART
109
4-242-318-01 OIL-DMPR, 70
110
1-796-351-51 MECHANISM, SIGNAL CASSETTE
(CMAL1Z240A)
#3
7-685-647-14 SCREW +BVTP 3X10 TYPE2 N-S
#6
7-685-862-09 SCREW +BVTT 2.6X6 (S)
#3
b
b
#3
#6
not supplied
not supplied
not supplied
not supplied
101
102
103
104
105
110
107
108
109
106
Click on the first or last page to see other CX-LEM550 / XR-EM550 service manuals if exist.