Daewoo CHASSIS : SC-150 Model : DSC-3220E Service Manual page 32

Service manual SC-150
8
IN1-
6
IN1+
TDA8946J
9
IN2-
12
IN2+
10
STANDBY/
MODE
MUTE LOGIC
11
SVR
4-5 TDA8358J Vertical Amplifier
The TDA8358J 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.
Vcc1 Vcc2
3 16
Vcc
20
SHORT CIRCUIT
AND
TEMPERATURE
20
PROTECTION
15
GND1 GND2
1
OUT1-
4
OUT1+
14
OUT2-
17
OUT2+
MBK933
o o
and 110 colour deflection systems for field frequencies
-31-
OUT1-
1
GND 2
Vcc1
3
4
OUT1+
5
n.c.
6
IN1+
n.c.
7
IN1-
8
IN2- 9
TDA8946J
10
MODE
11
SVR
IN2+
12
n.c.
13
OUT2-
14
15
GND2
Vcc2 16
17
OUT2+