Pioneer 434CMX Service Manual - Page 147
La4625 Audio Amp Assy : Ic5003, Output Pin To V
UPC - 012562691107
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5 6 7 LA4625 (AUDIO AMP ASSY : IC5003) • 2ch BLT AF Power Amp. IC Block Diagram 8 A 2 14 RIPPLE FILTER OUTPUT PIN TO VCC SHORT PROTECTOR PREDRIVER POWER 13 1 + -- IN LOAD SHORT PROTECTOR POWER GND1 12 B PREDRIVER POWER 11 3 BIAS CIRCUIT OVER VOLTAGE / SURGE PROTECTOR OUTPUT PIN TO GND SHORT PROTECTOR VCC 4 STANDBY SW THERMAL SHUT DOWN OUTPUT PIN TO GND SHORT PROTECTOR C PREDRIVER POWER 9 IN2 6 + -- IN LOAD SHORT PROTECTOR POWER GND2 10 PREDRIVER POWER 8 POP NOISE PREVENTION CIRCUIT 5 7 OUTPUT PIN TO VCC SHORT PROTECTOR D E F PDP-434CMX 147 5 6 7 8
PDP-434CMX
147
5
6
7
8
5
6
7
8
C
D
F
A
B
E
5
2
1
14
3
POP NOISE
PREVENTION
CIRCUIT
STANDBY
SW
BIAS
CIRCUIT
RIPPLE
FILTER
OVER VOLTAGE /
SURGE PROTECTOR
THERMAL
SHUT DOWN
V
CC
OUTPUT PIN TO V
CC
SHORT PROTECTOR
OUTPUT PIN TO GND
SHORT PROTECTOR
OUTPUT PIN TO GND
SHORT PROTECTOR
POWER
GND1
IN2
LOAD SHORT
PROTECTOR
OUTPUT PIN TO V
CC
SHORT PROTECTOR
13
11
12
PREDRIVER
POWER
PREDRIVER
POWER
IN
+
--
6
POWER
GND2
9
8
10
PREDRIVER
POWER
PREDRIVER
POWER
IN
+
--
4
LOAD SHORT
PROTECTOR
7
Block Diagram
LA4625 (AUDIO AMP ASSY : IC5003)
• 2ch BLT AF Power Amp. IC