Service manual sc-150 – Daewoo DSC-3220E/3220L User Manual

Page 32

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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.

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