Sony HCD-VP1 - IC Pin Function Descriptions; System Controller IC Pinout

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5-18. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC801 CXP83120A-132Q (SYSTEM CONTROLLER, LCD DRIVER)
Pin No. Pin Name I/O Description
1 TAPE-END I
Tape end detect sensor input terminal “H” input when the tape end detected
2
GND
—
Ground terminal
3 REMOCON I
Sircs remote control signal input from the remote control receiver (IC802)
4 TU-DATA/SDA O
PLL serial data output to PLL IC on the tuner pack (at tuner function)
I
2
C data output to the TDA7439 (IC301) (all functions)
5
NC
—
Not used (open)
6 T-MODE I
Head position detect switch input terminal “L”: forward direction, “H”: reverse direction
7 REG-CON O
Main system power supply on/off control signal output terminal “H”: power on
8
VCD
O
LED drive signal output of the VCD ON indicator (D500) “H”: LED on
9
TUNED
I
Tuning detection signal input from the tuner pack “L”: tuned
10
MOT-CON
O
Capstan/reel motor on/off control signal output terminal “H”: motor on
11
S-CLK
O
Serial data transfer clock signal output to the VCD block (at CD function)
12
S-SI
I
Serial data input from the VCD block (at CD function)
13
S-SO
O
Serial data output to the VCD block (at CD function)
14
CD-MUTE
O
Not used (open)
15
S-REQ
O
Interrupt status output to the VCD block
16
PBC
O
LED drive signal output of the PBC indicator (D501) “H”: LED on
17
RST
O
Reset signal output to the VCD block “L”: reset
18
TU-COUNT
I
PLL count data input from PLL IC on the tuner pack (at tuner function)
19
TU-CE
O
PLL serial chip enable signal output to PLL IC on the tuner pack (at tuner function)
20 JOG-B I
Jog dial pulse input from the rotary encoder (RV801 VOLUME) (B phase input)
21 JOG-A I
Jog dial pulse input from the rotary encoder (RV801 VOLUME) (A phase input)
22
AMP-MUTE
O
Muting on/off control signal output to the power amplifier (IC101, 201)
“H”: muting on
23
AMP-STBY
O
Standby on/off control signal output to the power amplifier (IC101, 201)
“L”: standby mode
24
MD/VIDEO-ON
O
MD/VIDEO function control signal output terminal
“H”: MD/VIDEO (“L” output when other functions)
25 TU-ON O
Power supply on/off control signal output of the tuner pack (TU +10V and FM +7.5V)
LED drive signal output of the TUNER indicator (D855) “H”: tuner power on (LED on)
26 D.S.G. O
LED drive signal output of the DSG (Dynamic Sound Generator) indicator (D856)
“H”: LED on
27 CD-SYNC O
LED drive signal output of the CD SYNC indicator (D857) “H”: LED on
28
SCK
O
Serial data transfer clock signal output to the TDA7439 (IC301)
29
TU-CLK
O
PLL serial data transfer clock signal output to PLL IC on the tuner pack (at tuner function)
30 SOL-CON O
Trigger plunger on/off control signal output terminal “H”: plunger on
31
HP-CHK
I
Headphone check detection signal input terminal
32 TC-SW I
Half detect (side A and B) switch and cassette in detect switch input terminal (A/D input)
33 KEY4 I
Key input terminal (A/D input) S826 to S829 (SELECT, PREV, NEXT, RETURN keys input)
34 KEY3 I
Key input terminal (A/D input) S817 to S822, S824 and S825 (STANDBY I/u, CD, TUNER,
TAPE, MD/VIDEO, DSG, TUNER BAND, CD SYNC keys input)
35 KEY2 I
Key input terminal (A/D input) S801 to S808 (TUNING MODE, CD ^/p/+/=, PLAY
MODE, REPEAT, CD EJECT 6 keys input)
36 KEY1 I
Key input terminal (A/D input)
S809 to S816 (TAPE 9 (/p/)/0/P, REC r, TUNING +/– keys input)
37 SIMUKE I
Destination setting terminal (A/D input)