Service manual

CDhIl4000W//CP-M4000
IC7pl RH-iX0460AWZZ: System Microcomputer (llX0460AW) (i/2)
8 j P31 / DRF
I
Input CD RF level detection.
9 P30
WRQ Input
CD DSP write request.
20 P24
21
P23
22
P22
23 P21
24
P20
25 AVSS
26 AN17
CD CE
CE
CLK
DI
DO
AVSS
o/c SW
DISC NO SW
DSA-DATA
output
CD DSP CE output.
output
CE output.
output Clock output.
output Data output.
Input Data input.
-
Analog ground.
Input CD open/Close switch.
Input CD disc number switch.
Irlput/Output DS data input.
27
28
29
30
31-33
34
35
AN16
NO USE
Input GND.
TUNER SM Input
Tuner signal meter input.
DSA-ACK
Input/Output
DSA acr.
AN15 SPEANA 2 Input Speana data input 16 kHz.
AN14 SPEANA 1 Input
Speana data input 1 kHz.
AN13 SPEANA 0 Input Speana data input 63 kHz.
ANl2-AN10 KEY P-KEY 0 Input Key input.
AVDD AVDD
Input
Analog VDD.
AVREF
AVREF
lnout Analoa REF voltaae.
36
1 lNTP3
1 P-IN
I lnout
1 Power failure detect. I
37
PO2 JOG 1
Input
JOG volume input 1.
38
PO1 JOG 0 Input JOG volume input 0.
39
INTPO REMOCON Input Remocon input.
40
vss vss
-
Ground voltage.
41
P74 SMUTE output
System mute control.
42
P73 T-SOL-B output Tape 2 solenoid control.
43
P72 T-SOL-A output Tape 1 solenoid control.
44
P71 T-MOTOR output Tape motor control.
45 P70 TIMER LED OUtDUt Timer LED control.
46
VDD
VDD
Input (+) Power supply.
47’
P127 AC RLY-CONT
output
AC relay control.
48
P126
SP-RLY output
Speaker output relay control.
45
P125
SP-DET
Input
Speaker output detection.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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