Daewoo DSC-3220E/3220L CRT Television User Manual


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Service manual SC-150
-2-
4-5-2 TDA8358J .............................................................................................................................................. 33
4-6 TDA6107Q .......................................................................................................................................................... 33
4-7 24C16 - 16 Kb EEPROM .................................................................................................................................... 35
4-8 STR - F6653 ....................................................................................................................................................... 36
4-8-1 General description ............................................................................................................................... 36
4-8-2 Features ................................................................................................................................................. 36
4-8-3 Block diagram ....................................................................................................................................... 36
4-8-4 Pin description ...................................................................................................................................... 37
4-8-5 Control part - electrical characteristics ................................................................................................. 37
4-8-6 MOSFET electrical characteristics ....................................................................................................... 38
4-9 CXA1315P
4-10 CXA1315P
......................................................................................................................................................... 39
4-9-1 General description................................................................................................................................ 39
4-9-2 Features ................................................................................................................................................39
4-9-3 Block diagram ........................................................................................................................................
4-9-4 Pin Description........................................................................................................................................
39
40
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40
4-10-1 General description................................................................................................................................
40
4-10-2 Features ................................................................................................................................................
40
4-10-3 Block diagram ........................................................................................................................................
40
4-10-4 Pin Description........................................................................................................................................
40
4-11 LA6515
..........................................................................................................................................................
40
4-11-1 General description................................................................................................................................
40
4-11-2 Features ................................................................................................................................................
40
4-11-3 Block diagram ........................................................................................................................................
40
4-11-4 Pin Description........................................................................................................................................
40
5 - Circuit description..................................................................................................................................................
5-1 Block diagram .................................................................................................................................................... 43
43
5-2 IF section ............................................................................................................................................................ 44
5-2-1 Block diagram ....................................................................................................................................... 44
5-2-2 Vision IF Amplifier .................................................................................................................................. 44
5-2-3 Tuner-and VIF-ACG ................................................................................................................................ 45
5-2-4 FPLL, VCO and AFC .............................................................................................................................. 45
5-2-5 Video Demodulation and Amplifier ...................................................................................................... 46
5-5-6 Sound IF Amplifier and SIF-AGC ....................................................................................................... 46
5-2-7 Quasi-Parallel-Sound (QPS) Mixer ......................................................................................................... 46
5-2-8 Standard Switch .................................................................................................................................... 46
5-2-9 L Switch.................................................................................................................................................. 46
5-2-10 Internal Voltage Stabiliser ..................................................................................................................... 46
5-3 Video - VCT description ...................................................................................................................................... 47
5-3-1 Introduction ............................................................................................................................................ 47
5-3-2 Video Front-end..................................................................................................................................... 47
5-3-3 Input Selector ........................................................................................................................................ 47
5-3-4 Clamping ................................................................................................................................................ 47
5-3-5 Automatic Gain Control ........................................................................................................................ 47
5-3-6 Digitally Controlled Clock Oscillator ..................................................................................................... 47
5-3-7 Analogue Video Output ........................................................................................................................ 47
5-3-8 Adaptive Comb Filter (VCT3834A only)................................................................................................ 48
5-3-9 Color Decoder ....................................................................................................................................... 48
5-3-10 Horizontal Scaler ................................................................................................................................... 48
5-3-11 Video Sync Processing ........................................................................................................................ 49
5-3-12 Display Processing ................................................................................................................................ 49
5-3-13 Chroma Transient Improvement............................................................................................................ 49
5-3-14 Video Back-end ..................................................................................................................................... 49
5-3-15 CRT Measurement and Control........................................................................................................... 50
5-3-16 Average Beam Current Limiter ............................................................................................................. 50
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