39
HCD-GP6V
• IC Pin Function Description
• CONTROL BOARD IC601 LC876756C-52C3 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
—
Not used (open)
2
NC
—
Not used (open)
3
O-CD DATA
O
Data output to the video CD circuit
4
T-SOL
O
Solenoid control signal output to the tape deck
5
T-END
I
Tape deck reel switch signal input
6
T-MTR.CONT
O
Motor control signal output to the tape deck
7
O-SHIFT
O
Clock shift control signal output
8
P-CONT
O
Power relay control signal output
9
P 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
