DAEWOO ELECTRONICS DTE-21U6TH, Service Manual

Service manual CP-785AF

Contents

1 - Main features ................................................................................................................................. 2

1-1 Specifications .................................................................................................................... 2
1-2 Channel table .................................................................................................................... 4

2 - Safety instruction .......................................................................................................................... 7

3 - Alignment instructions ................................................................................................................. 8

3-1 Microcontroller configuration : Service mode .................................................................... 8
3-2 Microcontroller configuration : Option................................................................................ 8
3-3 TV set Alignment ............................................................................................................... 9

4 - IC description ................................................................................................................................ 10

4-1 TDA936x TV signal processor - TXT with embedded 

m

-Controller. .................................. 10

4-2 MSP3415D Multistandard Sound Processor ..................................................................... 18
4-3 TDA894xJ Stereo Audio Amplifier..................................................................................... 22
4-4 TDA835xJ Vertical Amplifier.............................................................................................. 23

4-4-1 TDA8358J............................................................................................................... 24
  

4-5 TDA6107Q ........................................................................................................................ 25
4-6 24C08 8 Kbit EEPROM ..................................................................................................... 26
4-7 STR-F665X ....................................................................................................................... 27

5 - Circuit description......................................................................................................................... 29

5-1 Block diagram.................................................................................................................... 29
5-2 IF ....................................................................................................................................... 33
5-3 Source switching ............................................................................................................... 34
5-4 u-Controller I/O pin configuration and function .................................................................. 34
5-5 Sound processing.............................................................................................................. 35
5-6 Sound amplification ........................................................................................................... 37
5-7 Vertical deflection .............................................................................................................. 37
5-8 Power supply (STR-F6654) ............................................................................................... 39
5-9 TV start-up, TV normal run and stand by mode operations .............................................. 43

6 -Service parts list............................................................................................................................. 50

PF15T30

 ..........

.......... ..........

................................................................................................. 50

(DTE-21U6TH)

7 - Exploded view ...............................................................................................................................  59

8 - PCB Layout ....................................................................................................................................

9 - Circuit Diagram..............................................................................................................................

60

61