![background image](http://html.mh-extra.com/html/sony/hcd-nxm2d/hcd-nxm2d_service-manual_420829074.webp)
74
HCD-NXM2D
• IC401 M3062CMEN-A01FPUO (SYSTEM CONTROL) (MAIN Board)
Pin No.
Pin Name
I/O
Description
1
M61530 CLK
O
Serial clock output to M61530RP (not used)
2
M61530 DATA
O
Serial data output to M61530RP (not used)
3
MIC IN
I
MIC detect signal input
4
SIRCS
I
Remote commander signal input
5
NO USE
–
Not used
6
REAR RELAY
O
Surround relay drive signal output (not used)
7
SW RELAY
O
Super woofer relay drive signal output
8
BYTE
I
External data bus width select input (connected to ground)
9
CN VSS
I
Processor modes switch
10
XC-IN
I
Sub clock input (32.768kHz)
11
XC-OUT
O
Sub clock output (32.768kHz)
12
RESET
I
System reset input
13
X-OUT
O
Main system clock output (16MHz)
14
VSS
–
Ground
15
X-IN
I
Main system clock input (16MHz)
16
VCC
–
Power supply
17
NMI
I
Non-maskable interrupt input
18
RDS-INT
I
RDS signal input Clock signal output to the EEPROM (connected to ground)
19
SW MUTE
O
Super woofer mute signal output
20
AC-CUT
I
AC cut-off detection signal input
21
NO USE
–
Not used
22
MODEL
I
Setting terminal for the model
23
DVD VIDEO MUTE
O
Video out mute signal output
24
DVD VIDEO SW
O
Video out mute signal output
25
DVD SYS RESET
O
System reset signal output
26
DVD MUTE REQ
O
Audio muting request signal output
27
DVD A-MUTE
O
Audio muting on/off control signal output
28
DVD POWER
O
DVD power ON/OFF signal output
29
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output
30
IIC-DATA
I/O
Communication data bus with CD mechanism and Fluorescent indicater
31
MP3 REQ
I
REQ signal input from MP3 circuit (not used)
32
REC OUT-MUTE
O
REC OUT mute signal output
33
CDM-MOT-POS-1
O
Motor drive signal output (L/D)
34
CDM-MOT-POS-2
O
Motor drive signal output (U/D)
35
CDM-MAIN-SW-CLS
I
Detection signal input from disc tray close detect main switch
36
CDM-SUB-SW-OPN
I
Detection signal input from disc tray open detect sub switch
37
CDM-ENC-A-1
I
Detection signal input from the disc tray address detect rotary encoder
38
CDM-ENC-A-3
I
Detection signal input from the disc tray address detect rotary encoder
39
CDM-ENC-B-1
I
Detection signal input from the disc tray address detect rotary encoder
40
CDM-ENC-B-3
I
Detection signal input from the disc tray address detect rotary encoder
41
CDM-ENC-B-2
I
Detection signal input from the disc tray address detect rotary encoder
42
CDM-ENC-B-0
I
Detection signal input from the disc tray address detect rotary encoder
43
CDM-ENC-A-2
I
Detection signal input from the disc tray address detect rotary encoder
44
CDM-ENC-A-0
I
Detection signal input from the disc tray address detect rotary encoder
45
CDM-SUB-SW-CLS
I
Detection signal input from disc tray close detect sub switch
46
CDM-MAIN-SW-OPN
I
Detection signal input from disc tray open detect main switch
47
CDM-MOT-NEG-2
O
Motor drive signal output (U/D)
48
CDM-MOT-NEG-1
O
Motor drive signal output (L/D)
49
RDS-DATA
I
RDS data input (connected to ground)
50
ST-MUTE
O
Tuner muting control signal output to tuner unit
Summary of Contents for HCD-NXM2D
Page 101: ...101 HCD NXM2D MEMO ...