Sony HCD-GX35 Service Manual page 23

• IC601 LC876780B-51YO-E (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD)
Pin No. Pin Name
1 SYS MUTE
2 BU1924 DATA
3 PWR DOWN
4 LC78646 RESET
5 LC78646 CE
6 LC78684 CE (MP3)
7 M61519 CLK
8 BU2099FV LCK
9 LC72121 CE
10 LC78684 SYNC
11 RESET
12 XT1
13 XT2
14 VSS1
15 CF1
16 CF2
17 VDD1
18 TAPE A STAT
19 TAPE B STAT
20 CD ENCODER
21 SW ON/OFF SENSOR
22 STREAM IN
23 VACS
24 KEY2
25 KEY1
26 KEY0
27 PROTECTOR (HOLD)
28 REMOCON IN
29 BU1924 CLK
30 to 41 G12 – G1
42 to 45 P1 – P4
46 VDD3
47 to 50 P5 – P8
51 VPP
52 to 55 P9 – P12
56 SW1 (a) P13
57 SW2 (b) P14
58 SW3 (c) P15
59 SW4 (d) P16
60 SW5 P17
61 SW6 P18
62 SW7 P19
63 SW8 P20
64, 65 P21, P22
66 ENTER LED
67 MD/VIDEO LED
68 GAME LED
69 TAPE LED
I/O
O System mute signal output
GX35, RG330 (except AEP, UK): Not used. (Connected to ground.)
I
RG310/RG330 (AEP, UK): Serial data signal input
I Power down signal input
O CD reset signal output
O CD CE signal output
O CD CE (MP3) signal output
O Clock signal output
O LCK signal output
O CE signal output
I SYNC signal input
I Reset signal input from the reset IC
I Oscillater connect pin (32.768 kHz)
O Oscillater connect pin (32.768 kHz)
— Ground pin
I Ceramic vibrator connect pin (8.64 MHz)
O Ceramic vibrator connect pin (8.64 MHz)
— Power supply pin (+3.3 V)
I Tape A start signal input
I Tape B start signal input
I CD encoder switch signal input
I Switch control on/off signal input
I Stream in signal input
I VACS signal input
I Key signal input 2
I Key signal input 1
I Key signal input 0
I Protector (Hold) signal input
I Remote control signal input from the remote control receiver IC
GX35, RG330 (except AEP, UK): Not used. (Connected to ground.)
I
RG310/RG330 (AEP, UK): Serial clock signal input
O FLD control signal output
O FLD control signal output
— Power supply pin (+3.3 V)
O FLD control signal output
GX35, RG330 (except AEP, UK): Ground pin
—
RG310/RG330 (AEP, UK): Power supply pin
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O FLD control signal output
O Not used in this set. (Open)
O Not used in this set. (Open)
O GAME LED (LED612) drive signal output
O TAPE A/B LED (LED609) drive signal output
HCD-GX35/RG310/RG330
Pin Description
23