Sony CFD-G70 - 5 Diagrams; Explanation of IC Terminals

17
CFD-G70
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