Daewoo 3220L, Service Manual

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Service manual SC-150
-31-
Block diagram TDA8946J Pin configuration
3 16
Vcc1 Vcc2
IN1-
OUT1-
OUT1-
OUT1+
OUT2-
OUT2+
IN1+
IN1-
IN2-
MODE
SVR
IN2+
n.c.
n.c.
n.c.
GND
GND2
GND1 GND2
Vcc1
Vcc2
OUT1+
OUT2-
OUT2+
IN1+
IN2-
IN2+
MODE
SVR
11
10
STANDBY/
MUTE LOGIC
20
Vcc
15
SHORT CIRCUIT
AND
TEMPERATURE
PROTECTION
20
17
14
4
1
8
6
9
12
TDA8946J
TDA8946J
MBK933
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
4-5 TDA8358J Vertical Amplifier
The TDA8358J are power circuit for use in 90
o
and 110
o
colour deflection systems for field frequencies
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.