Sony CDX-M3DI Service Manual page 19

• IC3 HD6432238RWN35TEI (CD MASTER CONTROL) (SERVO Board (2/2))
Pin No. Pin Name
1 TEST
2 DECXRST
3 DECSTBY
4 to 7 NC
8 PH3
9 INSW/PH2
10 LIMIT_SW
11 D_SW
12 CVCC
13 NC
14 VSS
15 NC
16 PH1
17 EJECT
18 LOAD
19 to 26 NC
27 FLAG
28 RFOK
29, 30 NC
31 TXD
32 RXD
33 XTALEN
34 TSTB
35 STB
36 A0
37 CD_RST
38 PACK
39 NC
40 SELF_SW
41 NC
42 AVSS
43, 44 NC
45, 46 NC
47, 48 KEY0, KEY1
49 to 52 NC
53 AVREF
54 AVCC
55, 56 MD0, MD1
57 X1A
58 X0A
59 RSTX
60 NMI
61 STBY
62 VCC
63 XTAL
64 VSS
65 EXTAL
66 FWE
67 MD2
68 FL_BOOT
69 FL-W
I/O
I Test mode selection signal input (Open)
O Reset signal output for DSP IC (L: reset)
O Standby mode control signal output for DSP IC (H: standby)
O Not used (Open)
I CD PH3 photo sensor detection signal input (Open)
I CD mechanism disc in switch detection signal input
I CD mechanism limit switch detection signal input
I CD mechanism down switch detection signal input
— System power supply pin (+3.3 V)
O Not used (Open)
— Ground
O Not used (Open)
I CD PH1 photo sensor detection signal input (Open)
O CD mechanism loading motor control signal output (Eject direction)
O CD mechanism loading motor control signal output (Load direction)
O Not used (Open)
I Correction unable detection signal input
I RFOK signal input from digital servo IC
O Not used (Open)
O UART TXD PC connection output (Open)
I UART RXD PC connection input (Open)
O Crystal oscillation control signal output for digital servo IC
O CD text parameter strobe signal output for digital servo IC
O Data strobe signal output for digital servo IC
Command/parameter identification signal output for digital servo IC (L: command,
O
H: parameter)
O Reset signal output for digital servo IC
I CD text pack sync signal input from digital servo IC
O Not used (Open)
I CD mechanism self switch detection signal input
O Not used (Open)
— Analog ground
O Not used (Open)
I Not used (Open)
I Key switch signal input 0, 1 (Open)
I Not used (Open)
— A/D converter reference voltage pin (+3.3 V)
— A/D converter power supply pin (+3.3 V)
I Operation mode input 0, 1 (Fixed at H)
I Sub clock oscillation signal input (Open)
O Sub clock oscillation signal output (Open)
I Microcomputer reset signal input
— Not used (Fixed at H)
— Not used (Fixed at H)
— Power supply pin (+3.3 V)
I Main clock oscillation signal input (12.288 MHz)
— Ground
O Main clock oscillation signal output (12.288 MHz)
I Flash write enable signal input
I Operation mode input 2
I Flash write selection signal input (L: flash write mode)
O Flash write control signal output
CDX-M3DI/M1000TF
Pin Description
19