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5-4-1 Introduction........................................................................................................................................... 49
5-4-2 CPU ...................................................................................................................................................... 49
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5-4-4 Tuning .................................................................................................................................................. 50
5-4-5 Automatic rmat switching and WSS ............................................................................................... 50
5-4-6 EXTERNAL source control logic........................................................................................................... 51
5-4-7 Over Current Protection........................................................................................................................ 53
5-5Teletext Display ................................................................................................................................................. 53
5-6 Sound processing............................................................................................................................................... 54
5-6-1 Analogue sound IF-input section............................................................................................................ 54
5-6-2 Quadrature Mixers ................................................................................................................................ 54
5-6-3 Phase and AM discr imination........................................................................................................... 54
5-6-4 NICAM decoder.................................................................................................................................... 55
5-6-5 DSP section.......................................................................................................................................... 55
5-6-6 Sound Mode switching.......................................................................................................................... 55
5-7 Sound amplification........................................................................................................................................... 55
5-7-1 Power amplifier............................................................................................................ ......................... 55
5-7-2 Mode selection....................................................................................................................................... 56
5-8 Vertical deflection............................................................................................................................................. 56
5-8-1 Flyback voltage..................................................................................................................................... 56
5-8-2 Protection.............................................................................................................................................. 56
5-8-3 Guard circuit.......................................................................................................................................... 56
5-8-4 Damping resistor................................................................................................................................... 56
5-8-5 EAST-WEST Amplifier (TDA8358J only)............................................................................................... 56
5-9 Power supply (STR F6653).. .............................................................................................................................. 57
5-9-1 STR-F6654 generaral description......................................................................................................... 57
5-9-2 Power supply primary par t operations................................................................................................... 57
5-10TV start-up, TV normal run and stand by mode operations............................................................................... 61
5-10-1 TV start-up operations.......................................................................................................................... 61
5-10-2 TV normal run and stand-by mode operations....................................................................................... 62
6 - Service parts list...................................................................................................................................................67
7 - Exploded View........................................................................................................................................................75
8 - PCB Layout
9 - Circuit Diagram
Service manual WP-895/895F. CP885/885F
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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