Sony CX-LEMV300 / XR-EMV300 Service Manual ▷ View online
37
CX-LEMV300
6-17. IC PIN FUNCTION DESCRIPTION
• IC801 LC876748C-52L6-E
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30 to 36
37 to 44
45
46
47 to 50
51
52 to 66
67 to 71
72
73
74
75
76
77
78
79
80
81
82
83
84
I/O
—
—
—
O
I
O
—
O
O
O
I
I
O
—
I
O
—
I
I
I
I
I
I
I
O
I
—
—
I
—
O
O
—
O
—
O
—
—
—
O
O
I
O
O
I
O
—
O
—
O
Pin Name
NC
NC
NC
TA SOL
TA END
TA MOTOR
HP MUTE
POWER ON
AMP-MUTE
F-DATA
RST
32.768kHz
32.768kHz
GND
8.64MHz
8.64MHz-EXTAL
VDD1
KEY1
KEY2
I POWER DOWN
VERSION
VOL-ENC
I-MIC
TA SW
SHT-CLK
I POWER MONITOR
NC
A-MUTE
RMC
NC
G1 to G8
SEG1
VDD3
SEG2 to SEG5
NO-USE
SEG6 to SEG20
NC
VDD4
NC
TA BIAS
ECO.LED
C-DOOR
TA REC/PB
AMP-STNBY
TA PLAY. SW
TU MUTE
FL-CON
CD
TU
TU CE
Description
Not used (fixed at “L”)
Not used (fixed at “L”)
Not used (fixed at “L”)
Solenoid control signal output to the tape deck
Tape deck reel switch signal input
Motor control signal output to the tape deck
Not used (open)
Power relay control signal output
Not used
Control signal output to the sound processor
Reset signal input from the reset IC (IC803)
Resonator terminal (32.768kHz)
Resonator terminal (32.768kHz)
Ground terminal
Resonator terminal (8.64MHz)
Resonator terminal (8.64MHz)
Power supply terminal
Key AD input 1
Key AD input 2
Power down detection signal input
Version setting terminal
Encoder signal input from the volume encoder
Microphone signal detection signal input
Tape PACK and REC switch status signal input from the tape deck
Clock shift control signal output
AC detection signal input
Not used (open)
Not used
Remote sensor signal input
Not used (open)
Grid signal output to the fluorescent indicator tube
Segment signal output to the fluorescent indicator tube
Power supply terminal
Segment signal output to the fluorescent indicator tube
Ground terminal
Segment signal output to the fluorescent indicator tube
Not used (open)
Power supply terminal
Not used (open)
Bias control signal output to the bias oscillation circuit
ECO LED control signal output
CD door open/close switch signal input
REC/PLAY control signal output to the REC/PLAY switch circuit
Standby control signal output to the power amplifier
Play switch signal input from the tape deck
Muting signal output to the tuner
Not used (open)
CD power supply control signal output
Not used (open)
Tuner chip enable signal output to the tuner
38
CX-LEMV300
Pin No.
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
O
O
O
O
—
—
—
I
I
I
I
O
O
O
I
O
Pin Name
O-VFON
E-XLT
E-DATA
E-SQCK
GND
VDD2
NC
TU STEREO
TU TUNED
I-CDACK
I-CDDATA
O-CDDATA
O-CDSTB
TU DATA
TU COUNT
TU CLK
Description
Vocal fader on/off control signal output
Latch signal output to the echo processor (IC502)
Data output to the echo processor (IC502)
Clock output to the echo processor (IC502)
Ground terminal
Power supply terminal
Not used (fixed at “L”)
Stereo/mono detection signal input from the tuner
Tuner tuned status signal input
Acknowledge signal input from the video CD circuit
Data input from the video CD circuit
Data output to the video CD circuit
Strobe signal output to the video CD circuit
Seial data output to the tuner
IF count signal input from the tuner
Serial clock output to the tuner
SECTION 7
EXPLODED VIEWS
39
CX-LEMV300
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences 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.
seldom required for routine service. Some delay
should be anticipated when ordering these items.
•
Accessories are given in the last of this parts list.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Abbreviation
MY : Malaysia model
SP
MY : Malaysia model
SP
: Singapore model
TH : Thai model
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
1
A-4747-893-A MAIN BOARD, COMPLETE (SP, MY)
1
A-4748-921-A MAIN BOARD, COMPLETE (TH)
2
4-812-134-31 RIVET (DIA. 3.5), NYLON
0 4
1-769-744-52 CORD, POWER
5
1-689-572-11 PT BOARD
6
1-693-620-11 TUNER (FM/AM)
7
A-4747-865-A V-OUT BOARD, COMPLETE
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
8
1-787-021-11 FAN, DC
9
3-703-397-01 SCREW 3X8 +PWH B-T
10
1-689-571-11 REGULATOR BOARD
0 PT901
1-443-097-11 TRANSFORMER, POWER
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#3
7-685-247-14 SCREW +KTP 3X10 TYPE2 NON-SLIT
#4
7-685-661-14 SCREW +BVTP 4X12 TYPE2 IT-3
7-1. CABINET SECTION
5
8
10
7
9
#4
#3
#1
#1
front panel
section
section
#1
#1
#1
#1
#1
#1
#1
1
6
4
2
#3
#1
CD cabinet section
#1
#1
#1
#1
#1
#1
#3
not supplied
not supplied
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied
PT901
40
CX-LEMV300
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
52
4-245-034-11 SPRING CASSETTE
53
4-238-631-01 TAPE SPRING
54
4-245-018-01 HOLDER CASSETTE
55
4-245-059-01 KNOB VOLUME
56
4-245-050-11 PANEL, FRONT (SP, MY)
56
4-245-050-21 PANEL, FRONT (TH)
57
4-245-057-01 BUTTON (POWER)
58
4-231-841-01 SPRING (HEART CAM-B)
59
4-245-055-01 DECORATION, BUTTON
60
4-245-056-01 BUTTON (FUNCTION)
61
A-4747-896-A FRONT BOARD, COMPLETE (SP, MY)
61
A-4748-922-A FRONT BOARD, COMPLETE (TH)
62
1-796-352-41 CMAL5Z220A
63
4-224-104-41 DAMPER
64
4-246-784-01 FOOT RUBBER
65
4-231-825-01 CAM (B), HEART
66
1-689-568-11 MIC JACK BOARD
67
A-4747-902-A MIC/ECHO BOARD, COMPLETE
68
A-4734-927-A VCD BOARD, COMPLETE
69
1-823-665-11 WIRE (FLAT TYOE)(9CORE)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#2
7-685-862-09 SCREW +BVTT 2.6X6 (S)
7-2. FRONT PANEL SECTION
52
53
54
55
57
59
60
67
68
69
61
64
62
58
56
63
65
66
#1
#1
#1
#1
#1
#1
#1
#1
#1
#2
#2
not supplied
a
a
b
b
not supplied
not supplied
not supplied
not supplied
not
supplied
not
supplied
not supplied
not supplied
not supplied
Click on the first or last page to see other CX-LEMV300 / XR-EMV300 service manuals if exist.