39
HCD-GP6V
• IC Pin Function Description
• CONTROL BOARD IC601 LC876756C-52C3 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1NC—Not used (open)
2NC—Not used (open)
3 O-CD DATA O Data output to the video CD circuit
4T-SOL O Solenoid control signal output to the tape deck
5T-END I Tape deck reel switch signal input
6T-MTR.CONT O Motor control signal output to the tape deck
7O-SHIFT O Clock shift control signal output
8 P-CONT O Power relay control signal output
9P AMP-MUTE O Muting control signal output to the power amplifier
10 F-DATA O Control signal output to the sound processor
11 I-RESET I Reset signal input from the reset IC (IC602)
12 I-XT1 I Resonator terminal (32.768kHz)
13 O-XT2 O Resonator terminal (32.768kHz)
14 GND. — Ground terminal
15 XIN I Resonator terminal (8.64MHz)
16 XOUT O Resonator terminal (8.64MHz)
17 VDD1 — Power supply terminal
18 I-KEY1 I Key AD input 1
19 I-KEY2 I Key AD input 2
20 NC — Not used (open)
21 NC — Not used (open)
22 NC — Not used (open)
23 NC — Not used (open)
24 T-SW I Tape switch status signal input from the tape deck (SW2 to 4)
25 I-POWER_MONI I Power amplifier overload monitoring signal input
26 I-POWER_DOWN I Power down detection signal input
27 NC — Not used (open)
28 CD-DOOR-SW I CD door open/close switch signal input
29 RMC_IN I Remote sensor signal input
30 to 33 NC — Not used (open)
34 to 44 O-GRID1 to 11 O Grid signal output to the fluorescent indicator tube
45 O-SEG1 O Segment signal output to the fluorescent indicator tube
46 VDD3 — Power supply terminal
47 to 50 O-SEG2 to 5 O Segment signal output to the fluorescent indicator tube
51 GND. — Ground terminal
52 to 66 O-SEG6 to 20 O Segment signal output to the fluorescent indicator tube
67, 68 NC — Not used (open)
69 to 71 I-INI-1 to 3 I Initial selection signal input
72 VDD4 — Power supply terminal
73 O-CLOSE O CD tray close control signal output
74 O-OPEN O CD tray open control signal output
75 LED-CONT O Standby LED control signal output
76 O-DSG O Muting control signal output to the sound processor (IC301)
77 T-REC O REC/PLAY control signal output to the REC/PLAY switch circuit
78 I-INI.DSG OFF — Not used (fixed at “L”)
79 T-PLAY.SW I Play switch signal input from the tape deck
80 R-MUTE O Muting signal output to the tuner