Daewoo DTP-28B1 Service Manual page 30

Wp-895 chassis
Table of Contents

Advertisement

4-5 TDA835xJ Vertical Amplifier
The TDA835xJ are power circuit for use in 90
of 25 to 200Hz and 16/9 picture tubes. The circuit provides a DC driven vertical deflection output circuit,
operating as a highly efficient class G system. Due to the full bridge output circuit the deflection coils can
be DC coupled.
The IC is constructed in a Low Voltage DMOS process that combines Bipolar, CMOS and DMOS devices.
MOS transistors are used in the output stage because of the absence of second breakdown.
4-5-1 TDA8357J
Features :
- Few external components
- High efficient fully DC-coupled vertical output bridge circuit
- Short rise and fall time of the vertical flyback switch
- Guard circuit
- Temperature (thermal) protection
- High EMC because of common mode inputs
Pinning
Pin
Symbol
1
Vi(pos)
2
Vi(neg)
3
Vp
4
V
OB
5
GND
6
Vflb
7
V
OA
8
V
O(guard)
9
V
M
o
and 110
Description
input voltage (positive)
input voltage
(negative)
supply voltage
output voltage B
ground
flyback supply voltage
output voltage A
guard output voltage
input measuring
resistor
o
colour deflection systems for field frequencies
- 30 -

Advertisement

Table of Contents
loading

Table of Contents