Read Sony CFD-G70L Service Manual online
17
CFD-G70L
SECTION 5
DIAGRAMS
5-1. EXPLANATION OF IC TERMINALS
IC802 CXP83620-031Q SYSTEM CONTROL
1
WRQ
I
CD subcorde Q signal input
2
RMC
I
Remote control signal input
3
R-MUTE
O
Radio mute signal output
4
ADJ
O
DC 1.7 V output for beep signal (Not used)
5
C-FSEQ
I
CD FSEQ signal input
6
C-CE
O
CD chip select signal output
7
C-CL
O
CD clock signal output
8
C-DO
I
CD serial data signal input
9
C-DI
O
CD serial data signal output
10
C-DRF
I
CD DRF signal input
11
C-RES
O
CD reset signal output
12
NC
—
Not used
13
SUR ON/OFF
O
Surround ON/OFF signal output
14
R-COUNT
I
Radio count signal input
15
R-CLOCK
O
Radio control clock signal output
16
R-DATA
O
Radio control data signal output
17
R-CE
O
Radio latch signal output
18
V-LATCH
O
Data latch signal output to LC75342 (VOL IC)
19
V-DATA
O
Data signal output to LC75342 (VOL IC)
20
V-CLOCK
O
Clock signal output to LC75342 (VOL IC)
21
P-CON
O
Power control signal output
22
REG CHK
I
Regulator voltage check signal input
23
REC
I
Tape recording function signal input
24
SDA
I/O
EEPROM serial data in/out
25 – 27
KEY-1 – 3
I
Key input terminal of A/D port
28
LIGHT CONT
O
Woofer monitor LED ON/OFF signal output
29
MODE CHECK
I
Reading specification and MEGA BASS signal input terminal (A/D port)
30
RST
I
System reset signal input
31
EXTAL
I
Crystal oscillator terminal (4.0MHz)
32
XTAL
O
Crystal oscillator terminal (4.0MHz)
33
VSS
—
Ground terminal
34
VL
O
LCD bias control signal output
35
VLC3
—
LCD bias voltage terminal
36
VLC2
—
LCD bias voltage terminal
37
VLC1
—
LCD bias voltage terminal
38 – 41
COM0 – 3
O
LCD common signal output
42 – 59
SEG0 – 17
O
LCD segment signal output
60, 61
NC
—
Not used
62
INIT
O
Initial signal output
63, 64
WOOFER2, 1
O
Woofer function signal output
65
VM
O
Battery check signal output
66
VH
O
TAPE deck motor control signal output
67, 68
ISS1, 2
O
ISS select signal output
69
TAPE
O
TAPE function signal output
70
RADIO
O
Radio function signal output
Pin No.
Pin name
I/O
Description
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