Sony HCD-CP33 Service Manual page 60

• IC306 System Control
Pin No. Pin Name
1 AC-CUT
2 B-SHUT
3 NC
4 POWER ON
5 NC
6 SOL-COT
7 MOTOR-COT
8 BYTE
9 CNVSS
10 SUBXIN
11 SUBXOUT
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 CD-SENS
19 CD-SCOR
20 RDS-INT
21 RDS-DATA
22 CD-HOLD
23 CD-LAT
24 CD RESET
25 PLAY-SW
26 LINE-MUTE
27 REC/PB/PASS
28 BIAS-ON
29 I2C_SCL
30 I2C_SCA
31 NC
32 SQ-DATA-IN
33 SQ-CLK
34 REC-MUTE
35 LCD-SDA
36 CD-DATA
37 LCD-SCK
38 DOLBY ON
39 LCD-RS
40 LCD-CS
41 NC
42 OPEN-SW
43 TRAY CLOSE
44 TRAY OPEN
45 CD-CLK
46 OPT SEL
47 IN SW
48 CD-POWER
49 FUNC_SEL
50 VOL-SCK
60
(M30620MCA-A37FP) (MAIN board)
I/O
I AC cut check on(L)/OFF(H)
I TCM-B REEL PULSE (A/D use)
— Not used
O Main power ON(H)/OFF(L)
— Not used
O TCM-B triger out ON(H)/OFF(L)
O Capstan (forward rotation-STOP)
— For external data bus width selection
— For processor mode selection
I SUB clock in
O SUB clock out
I Sysetem reset in
O Main system clock out
— Vss
I Main system clock in(16MHz)
— Power supply(+5V)
— Pull up(EVER +5V) Not used
I From CXD2587Q SENS
I CD Q-DATA REQUEST
I RDS int
I RDS data
O Mode
O CD LAT
O CD RESET
I TCM-B play sw in HeadDown(H) / Up(L)
O TC line mute ON(H)/OFF(L)
REC(L)/PB( Z) SingleNoUse → PASS(H)
O
O BIAS ON(H)/OFF(L)
I IIC SCL
I IIC SDA
— Not used
I CD data in
I/O (Note) : SQ CLK : Input when CD-POWER is (L)
O REC mute ON(L)/OFF(H)
O FL(LCD) data
O CD data
O FL(LCD) clk
O DOLBY NR ON(H)/OFF(L)
O FL reset
O FL chip select
— researved for Flash Re-Write(1)
I CD mecha open switch
O LOAD in
O LOAD out
O CD CLK
I researved for Flash Re-Write(2)
I BD32 CDM55
O CD-power ON(H)/OFF(L)
O L:TAPE, H:LINE IN
O Volume clock
Function