Ic Pin Function Description - Sony HCD-VP1 Service Manual

5-18. IC PIN FUNCTION DESCRIPTION

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