Pioneer PDP-5050SX Service Manual page 214

1
LA4625 (AUDIO AMP ASSY: IC3504)
A
• 2ch BTL AF Power Amp IC
Block Diagram
2
RIPPLE
FILTER
B
+
1
IN
--
3 BIAS
CIRCUIT
STANDBY
4
SW
C
IN2
+
6
IN
--
POP NOISE
PREVENTION
CIRCUIT
D
5
E
F
214
1
2
PREDRIVER POWER
LOAD SHORT
PROTECTOR
PREDRIVER POWER
OVER VOLTAGE /
SURGE PROTECTOR
THERMAL
SHUT DOWN
PREDRIVER POWER
LOAD SHORT
PROTECTOR
PREDRIVER POWER
7
PDP-5050SX
2
3
14
OUTPUT PIN TO V CC
SHORT PROTECTOR
13
POWER
12
GND1
11
OUTPUT PIN TO GND
SHORT PROTECTOR
V CC
OUTPUT PIN TO GND
SHORT PROTECTOR
POWER
10
GND2
OUTPUT PIN TO V CC
SHORT PROTECTOR
3
4
9
8
4