Sony HCD-CPX22 Service Manual page 44

HCD-CPX22/NXM3
• IC401 M30622MGN-B28FPUO (SYSTEM CONTROL) (MAIN Board)
Pin No. Pin Name
1 MP3 CS
2 MP3 LP
3 MP3 ACK
4 SIRCS
5 MP3 DATA OUT
6 MP3 DATA IN
7 MP3 CLK
8 BYTE
9 CN VSS
10 Xcin
11 Xcout
12 RESET
13 Xout
14 Vss
15 Xin
16 Vcc
17 NMI
18 RDS-INT
19 SCOR
20 AC-CUT
21 SENS
22 CD-DATA
23 CD-CLK
24 XLT
25 XRST
26 XCTN
27 A-MUTE
28 MP3-STANDBY
29 IIC_CLK
30 IIC_DATA
31 MP3 REQ
32 MP3 RESET
33 CDM-MOT-POS-1
34 CDM-MOT-POS-2
35 CDM-MAIN-SW-CLS
36 CDM-SUB-SW-OPN
37 CDM-ENC-A-1
38 CDM-ENC-A-3
39 CDM-ENC-B-1
40 CDM-ENC-B-3
41 CDM-ENC-B-2
42 CDM-ENC-B-0
43 CDM-ENC-A-2
44 CDM-ENC-A-0
45 CDM-SUB-SW-CLS
46 CDM-MAIN-SW-OPN
47 CDM-MOT-NEG-2
48 CDM-MOT-NEG-1
49 RDS-DATA
50 ST-MUTE
44
I/O
O Chip select signal to CD Digital Processor
O Latch pulse output to CD Digital Processor and Motor signal output
I ACK input from CD Digital Processor and Motor signal input
I Remote commander signal input
O Serial data output to the MP3 circuit
I Serial data input from the MP3 circuit
O Serial clock output to the MP3 circuit
I External data bus width select input (connected to ground)
I Processor modes switch
I Sub clock input (32.768kHz)
O Sub clock output (32.768kHz)
I System reset input
O Main system clock output (16MHz)
– Ground
I Main system clock input (16MHz)
– Power supply
I Non-maskable interrupt input
I Sirial data taransfer clock signal input
I CD Q-DATA request
I AC cut-off detection signal input
I Internal status(SENSE) signal input from CXD3059AR
O Serial data output
O Serial data transfer clock signal output
O Serial data latch pulse output
O Reset signal output to the CD mechanism
O XCTN signal output (for Tuner noise reduction)
O Audio muting on/off control signal output
O Standby signal output to the MP3 circuit
I/O Communication data reading clock signal input or transfer clock siganal output
I/O Communication data bus with CD mechanism and Fluorescent indicater
I REQ signal input from MP3 circuit
O RESET signal output to the MP3 circuit
O Motor drive signal output (L/D)
O Motor drive signal output (U/D)
I Detection signal input from disc tray close detect main switch
I Detection signal input from disc tray open detect sub switch
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from the disc tray address detect rotary encoder
I Detection signal input from disc tray close detect sub switch
I Detection signal input from disc tray open detect main switch
O Motor drive signal output (U/D)
O Motor drive signal output (L/D)
I RDS data input
O Tuner muting control signal output to tuner unit
Description