Read Sony CMT-GP5 / HCD-GP5 Service Manual online
35
HCD-GP5
6-13. IC Pin Function Description
IC601 LC876764A-51E5 System Control (CONTROL Board)
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 33
34 to 44
45
46
47 to 50
51
52 to 66
67, 68
69 to 71
72
73
74
75
76
77
78
79
80
81
82
83
I/O
O
O
I
O
I
O
O
O
O
O
I
I
O
—
I
O
—
I
I
I
I
I
I
I
I
I
I
I
I
—
O
O
—
O
—
O
—
I
—
O
O
O
O
O
—
I
O
O
O
O
Pin Name
C-PWM1
C-PWM2
C-SCOR
T-SOL
T-END
T-MTR.CONT
O-SHIFT
P-CON
PAMP-MUTE
F-DATA
I-RESET
I-XT1
O-XT2
GND.
XIN
XOUT
VDD1
I-KEY1
I-KEY2
BASS ENC INPUT
TRBLE ENC INPUT
VOL-ENC
RDS-SIG
T-SW
I-POWER MONI
I-POWER DOWN
RDS-CLK
CD-DOOR-SW
RMC-IN
NC
O-GRID1 to 11
O-SEG1
VDD3
O-SEG2 to 5
GND.
O-SEG6 to 20
NC
I-INI-1 to 3
VDD4
O-CLOSE
O-OPEN
LED-CONT
O-DSG
T-REC
I-INI.BASS+2
T-PLAY.SW
R-MUTE
O-BIAS
CD-FUN
O-PWM3E
Description
PWM1 signal output to the CD unit
PWM2 signal output to the CD unit
SCOR (SUBQ request) signal output to the CD unit
Solenoid control signal output to the tape deck
Tape deck reel switch signal input
Motor control signal output to the tape deck
Clock shift control signal output
Power relay control signal output
Muting control signal output to the power amplifier
Control signal output to the sound processor
Reset signal input from the reset IC (IC603)
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
Encoder signal input from the bass encoder
Encoder signal input from the treble encoder
Encoder signal input from the volume encoder
RDS signal level input from the tuner
Tape switch status signal input from the tape deck (SW2 to 4)
Power amplifier overload monitoring signal input
Power down detection signal input
RDS clock input from the tuner
CD door open/close switch signal input
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)
Initial selection signal input
Power supply terminal
CD tray close control signal output
CD tray open control signal output
Standby LED control signal output
Not used (open)
REC/PLAY control signal output to the REC/PLAY switch circuit
Not used (fixed at “L”)
Play switch signal input from the tape deck
Muting signal output to the tuner
Bias control signal output to the bias oscillation circuit
CD power supply control signal output
Tuner power supply control siganl output
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