Daewoo DDT-21H9ZDF(21"), Service Manual

Service Manual CP-099/FS

-1-

Contents

1- Main Features -------------------------------------------------------------------------------------------------------------------------

4

1-1 Specifications  -------------------------------------------------------------------------------------------------------------------

4

1-2 Channel table --------------------------------------------------------------------------------------------------------------------

6

1-3 ATSS sorting method  ----------------------------------------------------------------------------------------------------------

8

2- Safety instruction ----------------------------------------------------------------------------------------------------------------------

9

3- Alignment instructions  --------------------------------------------------------------------------------------------------------------- 10

3-1 Microcontroller configuration : Service mode  ----------------------------------------------------------------------------- 10
3-2 Service mode navigation  ------------------------------------------------------------------------------------------------------ 10
3-3 Microcontroller configuration : Option bits  -------------------------------------------------------------------------------- 11
3-4 TV set Alignment  -------------------------------------------------------------------------------------------------------------- 11

3-4-1 The adjustment of screen  ------------------------------------------------------------------------------------------------ 11
3-4-2 The adjustment of focus -------------------------------------------------------------------------------------------------- 11
3-4-3 The adjustment of white balance  --------------------------------------------------------------------------------------- 11

3-5 The adjustment of geometry  -------------------------------------------------------------------------------------------------- 11

3-5-1 The adjustment of vertical center  --------------------------------------------------------------------------------------- 11
3-5-2 The adjustment of vertical size ------------------------------------------------------------------------------------------ 12
3-5-3 The adjustment of vertical slope  ---------------------------------------------------------------------------------------- 12
3-5-4 The adjustment of S-correction  ----------------------------------------------------------------------------------------- 12
3-5-5 The adjustment of horizontal center ------------------------------------------------------------------------------------ 12
3-5-6 The adjustment of horizontal width  ------------------------------------------------------------------------------------ 13
3-5-7 The adjustment of pincusion  -------------------------------------------------------------------------------------------- 13

3-5-7-1 The adjustment of parabola  ------------------------------------------------------------------------------------------ 13
3-5-7-2 The adjustment of corner  --------------------------------------------------------------------------------------------- 13
3-5-7-3 The adjustment of H.parabola ---------------------------------------------------------------------------------------- 13
3-5-7-4 The adjustment of H.bow --------------------------------------------------------------------------------------------- 14
3-5-7-5 The adjustment of EW TRAPEZIUM  ------------------------------------------------------------------------------ 14

3-6 The adjustment of RF AGC --------------------------------------------------------------------------------------------------- 14
3-7 Setting the conditions for finished products  -------------------------------------------------------------------------------- 14

4- IC description  ------------------------------------------------------------------------------------------------------------------------- 15

4-1 VCT383XA TV signal processor - Teletext decoder with embedded 8 bit 

¥

- Controller --------------------------- 15

4-1-1 Block diagram of the VCT  ---------------------------------------------------------------------------------------------- 15
4-1-2 TV-signal Processor  ------------------------------------------------------------------------------------------------------ 15
4-1-3 

¥

-Controller  ---------------------------------------------------------------------------------------------------------------- 16

4-1-4 Teletext Features  ---------------------------------------------------------------------------------------------------------- 16
4-1-5 Display OSD Features ---------------------------------------------------------------------------------------------------- 17
4-1-6 Audio Features  ------------------------------------------------------------------------------------------------------------ 17
4-1-7 General Features  ---------------------------------------------------------------------------------------------------------- 17
4-1-8 Data Capture --------------------------------------------------------------------------------------------------------------- 17
4-1-9 Data Capture Features  ---------------------------------------------------------------------------------------------------- 17
4-1-10 TV processor version and 

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-Controller capacity  -------------------------------------------------------------------- 18

4-1-11 IC marking and version  ------------------------------------------------------------------------------------------------- 18
4-1-12 Pinning  -------------------------------------------------------------------------------------------------------------------- 18

4-2 MSP341 x Multistandard Sound Processor --------------------------------------------------------------------------------- 21

4-2-1 Basic Features of the MSP341x ----------------------------------------------------------------------------------------- 21

4-2-1-1 Demodulator and NICAM Decoder Section  ----------------------------------------------------------------------- 21
4-2-1-2 DSP-Section (Audio Baseband Processing)  ----------------------------------------------------------------------- 22
4-2-1-3 Analogue Section  ------------------------------------------------------------------------------------------------------ 22
4-2-1-4 NICAM plus FM/AM-Mono ----------------------------------------------------------------------------------------- 22
4-2-1-5 German 2-Carrier System (DUAL FM System) ------------------------------------------------------------------- 22

4-3 TDA9859 Universal hi-fi audio processor for TV-(14”) ------------------------------------------------------------------ 25

4-3-1 FEATURES  ---------------------------------------------------------------------------------------------------------------- 25