AIWA CDC-X144 Service Manual - Page 16

Ic750, Tda8589bj/n2 Main Board

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CDC-R104/X104/X144 IC750 TDA8589BJ/N2 (MAIN Board) TAB 1 OUT-FL- 3 OUT-FL+ 5 OUT-RL- 7 OUT-RL+ 9 IN-RL 11 S-GND 13 IN-RR 15 OUT-RR+ 17 OUT-RR- 19 FL RL PROTECTION/ DIAGNOSTIC RR MUTE MUTE I2C BUS VP OUT-FR+ 21 OUT-FR- 23 DIAG 25 CHIP DETECT/ DIAGNOSTIC FR STANDBY/ MUTE BATTERY TEMPERATURE DETECTION PROTECTION ENABLE LOGIC ANT-REM 27 SWITCH 2 SDA 4 SCL 6 VP2 8 PGND3 10 SVR 12 IN-FL 14 IN-FR 16 BEEP 18 PGND2 20 VP1 22 STB 24 PGND1 26 RST AMP-REM 29 SWITCH SERVO5V 31 MECH6V 33 VP 35 B.UP+B 37 REFERENCE VOLTAGE REGULATOR LOADDUMP PROTECTION REGULATOR 28 CRES 30 AUDIO8.3V 32 GND 34 PANEL+B BACK-UP SWITCH 36 CBU 31

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31
CDC-R104/X104/X144
IC750
TDA8589BJ/N2 (MAIN Board)
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL-
OUT-FL+
OUT-RL-
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR-
OUT-FR+
OUT-FR-
DIAG
ANT-REM
AMP-REM
SERVO5V
MECH6V
VP
B.UP+B
SDA
SCL
VP2
PGND3
SVR
IN-FL
IN-FR
BEEP
PGND2
VP1
STB
PGND1
RST
CRES
AUDIO8.3V
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS