Daewoo CHASSIS : SC-150 Model : DSC-3220E Service Manual page 4

Service manual SC-150
5-3-17 Analogue RGB Insertion .................................................................................................................... . 50
5-3-18 Fast-Blank Monitor ..................................................................................................... ........................... 50
5-3-19 Vertical and East/West Deflection .................................................................................... ................... 50
5-3-20 EHT Compensation ........................................................................................................ ........................ 51
5-3-21 Reset Function ......................................................................................................... ............................. 51
5-3-22 Standby and Power-On .................................................................................................. ...................... 51
5-4 Micro-controller ...............................................................................................................
5-4-1 Introduction........................................................................................................................................... 51
5-4-2 CPU ......................................................................................................................... . ............................ 51
-Controller I/O pin configuration and function
5-4-3
5-4-4 Tuning .................................................................................................................................................. 52
5-4-5 Automatic
5-4-6 EXTERNAL source control logic ........................................................................................................... 54
5-4-7 Over Current Protection . ....................................................................................................................... 55
5-5Telete xt Displa y ................................................................................................................................................. 55
5-6 Sound processing ............................................................................................................................................... 56
5-6-1 Analogue sound IF-input section ............................................................................................................ 56
5-6-2 Quadr a ture Mix ers ................................................................................................................................ 56
5-6-3 Phase and AM discr imination........................................................................................................... 56
5-6-4 NICAM decoder . ................................................................................................................................... 57
5-6-5 DSP section .......................................................................................................................................... 57
5-6-6 Sound Mode switching .......................................................................................................................... 57
5-7 Sound amplification ........................................................................................................................................... 57
5-7-1 Power amplifier..................................................................................................................................... 57
5-7-2 Mode selection ....................................................................................................................................... 58
5-8 Vertical deflection............................................................................................................................................. 58
5-8-1 Flybac k voltage..................................................................................................................................... 58
5-8-2 Protection.............................................................................................................................................. 58
5-8-3 Guard circuit . ......................................................................................................................................... 58
5-8-4 Damping resistor . .................................................................................................................................. 58
5-8-5 EAST -WEST Amplifier (TD A8358J only) . .............................................................................................. 58
5-9 P ower supply (STR F6653) .. .............................................................................................................................. 59
5-9-1 STR-F6654 gener aral descr i ption......................................................................................................... 59
5-9-2 Power supply primary par t operations
5-10TV start-up, TV normal run and stand by mode operations
5-10-1 TV start-up operations..................................................................................................... . .................... 63
5-10-2 TV normal run and stand-by mode operations ....................................................................................... 64
6 - Se rvice parts list..................................................................................................................................................
6 -1 Service part list
6 -2 Service part list option ............................................................................................................................... 79
7 - Exploded View ........................................................................................................................................................ 80
........................................................................................................................................................ 81
8 - PCB Layout
................................................................................................................................................... 81
8 -1 MAIN PCB
................................................................................................................................................... 82
8 -2 UNION PCB
........................................................................................................................................................ 83
9 - Circuit Diagram
9 - 1 Circuit Diagram(MAIN)
9 - 2 Circuit Diagram(UNION)
Fo rmat switching and WSS ............................................................................................... 52
................................................................................................... 59
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.................................................................................................................................... 83
.................................................................................................................................. 84
............................................................................... 52
............................................................................... 63
-3-
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