Sony HCD-CP500MD Service Manual page 67

• IC306 M30622MGA-A44FP MASTER CONTROL (MAIN BOARD)
Pin No. Pin Name
1 AC-CUT
2 POWER-ON
3 XTSL
4 SIRCS
5 DA_MUTE
6 SOL_CON
7 CAPM-CNT1
8 BYTE
9 CNVSS
10 XCIN
11 XCOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 RDS-INT
19 CD-SCOR
20 MDM_POWER
21 OPT-SEL
22 CD-XLT
23 CD-SENS
24 BU_PWM3
25 LD_ON
26 BU_PWM2
27 CD-CLK
28 BU_PWM1
29 IIC_CLK
30 IIC_DATA
31 FLS_SO
32 SQ-DATA-IN
33 SQ-CLK
34 CD-DATA
35 LCD-DATA
36 LCD-CS
37 LCD-SCK
38 TC-MUTE
39 CD_XRST
40 IN SW
41 OPEN SW
42 TRAY-CLOSE
43 TRAY-OPEN
44 REC/PB/PASS
45 B_PLAY
46 OPT-SEL
47 (DOLBY-ON)
48 REC MUTE
49 MD RESET
50 CD-POWER
51 RDS-DATA
I/O
I AC CUT ON/OFF check signal input (L=ON,H=OFF)
O Power relay ON/OFF signal output (H=ON,L=OFF)
O XTSL signal output for IC101
I Remote control receiver data signal input
O D/A (MD) muting control signal output
O Solenoid(TC) control signal output (H=ON,L=OFF)
O Capstan motor control signal output (H=REV,L=FWD,L=STOP)
— Not used (ground)
— Connected ground
I Sub clock input
O Sub clock output
I System reset signal input
O Main system clock output
— Ground
I Main system clock input (16MHz)
— Power supply (+5V)
I Not used (connected to Vcc)
I RDS interrupt signal input
I CD Q-data request signal input
O MD P-DOWN control signal output
O Optical select signal output
O CD latch signal output
I CD sense signal input
O BU PWM3 signal output
O CD LD ON signal output
O BU PWM2 signal output
O CD clock signal output
O BU PWM1 signal output
O IIC clock signal output
O IIC data signal output
— Not used (open)
I CD SQ data signal input
O CD SQ clock signal output
O CD data signal output
O LCD data signal output
O LCD CS signal output
O LCD clock signal output
O Tape deck line muting signal output (H=ON,L=OFF)
O CD reset signal output
I Tray close detect signal input
I Tray open detect signal input
O Loading motor control signal output
O Loading motor control signal output
O REC/PB/PASS select signal output
I B deck play signal input
— Not used (Fixed at "H")
— Not used
O TC REC muting ON/OFF signal output
O MD reset signal output
O CD power control signal output (H=ON,L=OFF)
I RDS data signal input
HCD-CP500K/CP500MD
Description
67