Daewoo WP-895 - Page 4

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5-4-1Introduction...........................................................................................................................................50
5-4-2CPU......................................................................................................................................................50
...............................................................................51
5-4-4Tuning..................................................................................................................................................51
5-4-5Automaticrmatswitching andWSS...............................................................................................51
5-4-6EXTERNAL source control logic...........................................................................................................52
5-4-7Over Current Protection........................................................................................................................54
5-5Teletext Display.................................................................................................................................................54
5-6 Sound processing...............................................................................................................................................55
5-6-1Analogue sound IF-input section............................................................................................................55
5-6-2Quadrature Mixers................................................................................................................................55
5-6-3Phase and AM discrimination...........................................................................................................55
5-6-4NICAM decoder....................................................................................................................................56
5-6-5DSP section..........................................................................................................................................56
5-6-6Sound Modeswitching..........................................................................................................................56
5-7 Sound amplification...........................................................................................................................................56
5-7-1Power amplifier.....................................................................................................................................56
5-7-2Mode selection.......................................................................................................................................57
5-8Vertical deflection.............................................................................................................................................57
5-8-1Flybackvoltage.....................................................................................................................................57
5-8-2Protection..............................................................................................................................................57
5-8-3Guard circuit..........................................................................................................................................57
5-8-4Damping resistor...................................................................................................................................57
5-8-5EAST-WEST Amplifier (TDA8358J only)...............................................................................................57
5-9Power supply (STR F6653).. ..............................................................................................................................58
5-9-1STR-F6654 generaraldescription.........................................................................................................58
5-9-2 Power supply primary par t operations...................................................................................................58
5-10TV start-up, TV normal run and stand by mode operations...............................................................................62
5-10-1TV start-up operations..........................................................................................................................62
5-10-2TV normalrun 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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7-8 DWF-28W9
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7-9 DTB-21U7
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