LG V7550 Service Manual page 29

INP
1
INN
2
V P 3
OUTB
4
GND
5 TDA4867J
OUTA
6
V FB
7
GUARD
8
FEEDB
9
Fig.2 Pin configuration.
Pin Configuration
Block Diagram
INP 1
INPUT STAGE
2
INN
from e.g TDA485X
or SAA4856
TDA4867J
INP
INN
V
OUTB
GND
OUTA
V
GUARD
FEEDB
GUARO output/
GND
V
power save mode
p
8 3
GUARD
CIRCUIT
AMPLIFIER A
IPROTECTION
AMPLIFIER B
Fig.1 Block diagram.
- 29 -
PHILIPS 9P
SYMBOL PIN
1 non-inverted input
2 inverted input
3 supply voltage
P
4 output B
5 ground
6 output A
7 flyback supply voltage
FB
8 guard output
9 feedback inprt
V
FB
5 7
FLYBACK
GENERATOR
6 OUTA
9
FEEDB
4 OUTB
DESCRIPTION
I
defl
vertical
R
p deflection
coil
R
ref
R
m