Read Sony HCD-RV660D / HCD-RV990D Service Manual online
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HCD-RV660D/RV990D
• IC101 µPD780232GC-081-8BT (SYSTEM CONTROL, FL DRIVER) (PANEL Board)
Pin No.
Pin Name
I/O
Pin Description
1
VDD
—
Power supply pin (+5 V)
2
VSS
—
Ground
3
X1
I
System clock signal input (5 MHz)
4
X2
I
System clock signal input (5 MHz)
5
IC
I
Directly connect to ground.
6
RESET
I
Reset signal input (active L)
7
S-CLK
I
Serial clock signal input
8
S-IN
I
Serial in signal input
9
S-OUT
O
Serial out signal output
10 to 15
NC
O
Not used (Open)
16
VOL-A
I
VOLUME encoder in A signal input
17
VOL-B
I
VOLUME encoder in B signal input
18
AVSS
—
Analog ground
19
NC
I
Not used (Connect to ground)
20 to 22
KEY2 to KEY0
—
Key in signal input
23
VSS
—
Ground
24
AVDD
—
Analog power supply pin (+5 V)
25
VDD
—
Power supply pin (+5 V)
26
DVD-LED
O
DVD LED ON/OFF select signal output (L: OFF, H: ON)
27
TUNER-LED
O
TUNER/BAND LED ON/OFF select signal output (L: OFF, H: ON)
28
TAPE-LED
O
TAPE A/B LED ON/OFF select signal output (L: OFF, H: ON)
29
MD-LED
O
MD (VIDEO) LED ON/OFF select signal output (L: OFF, H: ON)
30
GAME-LED
O
GAME LED ON/OFF select signal output (L: OFF, H: ON)
31 to 36
PS1-LED to PS6-LED
O
Power stream LEDs ON/OFF control signal output (L: OFF, H: ON)
37
MULTI-LED
O
MULTI CHANNEL DECODING LED ON/OFF select signal output (L: OFF, H: ON)
38 to 44
NC
O
Not used (Open)
45 to 58
S1 to S14
O
FL segment control signal output (L: OFF, H: ON)
59
VDD
—
Power supply pin (+5 V)
60
V.LOAD
—
V.LOAD
61 to 67
S15 to S21
FL segment control signal output (L: OFF, H: ON)
68 to 80
G1 to G13
FL grid control signal output (L: OFF, H: ON)
