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

Service manual SC-150

-1-

Contents

1 - Main features ........................................................................................................................................................   4

1-1 Specifications  ..................................................................................................................................................   4
1-2 Channel table  ..................................................................................................................................................   8
1-3 ATSS sorting method ....................................................................................................................................... 11

2 - Safety instruction ................................................................................................................................................. 13

3 - Alignment instructions  ........................................................................................................................................ 14

3-1 Microcontroller configuration : Service mode ................................................................................................... 14
3-2 Service mode navigation  ................................................................................................................................. 14
3-3 Microcontroller configuration : Option  .............................................................................................................. 15
3-4 TV set Alignment  ............................................................................................................................................. 15

3-4-1  Local oscillator alignment .................................................................................................................... 15
3-4-2 G2 

alignment 

....................................................................................................................................... 15

3-4-3 White 

balance 

..................................................................................................................................... 15

3-4-4 Focus 

.................................................................................................................................................. 15

3-4-5 Vertical 

geometry 

................................................................................................................................ 15

3-4-6  Horizontal picture centring ................................................................................................................... 16
3-4-7 East/West 

correction 

........................................................................................................................... 16

3-4-8 AGC 

.................................................................................................................................................... 17

4 - IC description ....................................................................................................................................................... 18

4-1 VCT383xA TV signal processor - Teletext decoder with embedded 8 bit     -
Controller ............................................................................................................................................................ 18

4-1-1  Block diagram off the VCT ................................................................................................................... 18
4-1-2  TV-signal  Processor ........................................................................................................................... 18
4-1-2      -Controller 

  ....................................................................................................... ...................................  19

4-1-4 Teletext 

Features 

................................................................................................................................ 19

4-1-5  Displaty  OSD  Features ...................................................................................................................... 20
4-1-6 Audio 

Features 

................................................................................................................................... 20

4-1-7 General 

Features 

............................................................................................................................... 20

4-1-8 Data 

Capture 

....................................................................................................................................... 20

4-1-9 Data 

Capture 

Features 

........................................................................................................................ 20

4-1-10  TV processor  version  and    -Controller  capacity .............................................................................. 21
4-1-11  IC marking and version  ....................................................................................................................... 21
4-1-12 Pinning ................................................................................................................................................ 21

4-2 MSP341x  Multistandard  Sound  Processor  ................................................................................................... 24

4-2-1  Basic Features of the MSP 341x ......................................................................................................... 24

4-3 TDA4470 - Multistandard Video-IF and Quasi  Parallel  Sound  Processor ...................................................... 28

4-3-1 Description 

.......................................................................................................................................... 28

4-3-2 Features 

.............................................................................................................................................. 28

4-3-3 Pinning 

................................................................................................................................................ 28

4-3-4 Block 

diagram 

.................................................................................................................................... 29

4-4 TDA894xJ  Stereo  Audio  Amplifier ................................................................................................................. 30

4-4-1 Features 

...............................................................................................................................................  30

4-5 TDA835xJ  Vertical  Amplifier ........................................................................................................................... 32

4-5-1 TDA8357J 

........................................................................................................................................... 32