Daewoo WP-895, Руководство по обслуживанию

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5-4-1 Introduction........................................................................................................................................... 50
5-4-2 CPU ...................................................................................................................................................... 50
............................................................................... 51
5-4-4 Tuning .................................................................................................................................................. 51
5-4-5 Automatic
rmat switching and WSS ............................................................................................... 51
5-4-6 EXTERNAL source control logic ........................................................................................................... 52
5-4-7 Over Current Protection........................................................................................................................ 54
5-5Teletext Display ................................................................................................................................................. 54
5-6 Sound processing
............................................................................................................................................... 55
5-6-1 Analogue sound IF-input section ............................................................................................................ 55
5-6-2 Quadrature Mixers ................................................................................................................................ 55
5-6-3 Phase and AM discr imination........................................................................................................... 55
5-6-4 NICAM decoder.................................................................................................................................... 56
5-6-5 DSP section.......................................................................................................................................... 56
5-6-6 Sound Mode switching.......................................................................................................................... 56
5-7 Sound amplification........................................................................................................................................... 56
5-7-1 Power amplifier..................................................................................................................................... 56
5-7-2 Mode selection....................................................................................................................................... 57
5-8 Vertical deflection............................................................................................................................................. 57
5-8-1 Flyback voltage..................................................................................................................................... 57
5-8-2 Protection.............................................................................................................................................. 57
5-8-3 Guard circuit.......................................................................................................................................... 57
5-8-4 Damping resistor................................................................................................................................... 57
5-8-5 EAST-WEST Amplifier (TDA8358J only)............................................................................................... 57
5-9 Power supply (STR F6653) .. .............................................................................................................................. 58
5-9-1 STR-F6654 gener aral description......................................................................................................... 58
5-9-2 Power supply primary par t operations ................................................................................................... 58
5-10TV start-up, TV normal run and stand by mode operations ............................................................................... 62
5-10-1 TV start-up operations.......................................................................................................................... 62
5-10-2 TV normal run and stand-by mode operations
....................................................................................... 63
6 - Service parts list................................................................................................................................................... 68
7 - Exploded View ........................................................................................................................................................ 86
8 - PCB Layout
9 - Circuit Diagram
Service manual WP-895/895F. CP885/885F. CP485F
5-4-3
-Controller I/O pin configuration and function
7-1 DWX-28W5
7-2 DWF-28W8
7-3 D T F-29U8
7-4 D T P-28A7
7-5 D T P-28B1
7-6 D T P-28G7
7-7 D T P-28G8
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86
87
88
89
90
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92
7-8 DWF-28W9
.............................................................................................................. . ............... . ........................ 93
7-9
DTB-21U7
.............................................................................................................. . ............... . .................... 94