Daewoo dsc-3220e-3220l Manuel D’Utilisation

Page de 86
Service manual SC-150
-3-
Fo
5-4-1 Introduction........................................................................................................................................... 51
5-4-2 CPU ...................................................................................................................................................... 51
............................................................................... 52
5-4-4 Tuning .................................................................................................................................................. 52
5-4-5 Automatic
rmat switching  and WSS ............................................................................................... 52
5-4-6 EXTERNAL  source  control  logic
........................................................................................................... 54
5-4-7 Over  Current  Protection
........................................................................................................................ 55
5-5Teletext  Display ................................................................................................................................................. 55
5-6 Sound  processing
............................................................................................................................................... 56
5-6-1 Analogue  sound  IF-input  section
............................................................................................................ 56
5-6-2 Quadrature  Mixers ........................................................................................................... ..................... 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 Flyback 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  (TDA8358J only)............................................................................................... 58
5-9 Power supply  (STR  F6653)
.. .............................................................................................................................. 59
5-9-1 STR-F6654  gener
aral description......................................................................................................... 59
5-9-2 Power  supply  primary  par t  operations
................................................................................................... 59
5-10TV start-up, TV  normal run  and  stand by  mode  operations
............................................................................... 63
5-10-1 TV  start-up  operations .......................................................................................................................... 63
5-10-2 TV normal run  and stand-by mode  operations
....................................................................................... 64
6 - Se
6 -1 Service  part list
rvice  parts  list..................................................................................................................................................
...........................................................................................................................................
. 69
69
6 -2 Service  part list option ............................................................................................................................... 79
7 - Exploded  View ........................................................................................................................................................ 80
........................................................................................................................................................ 81
........................................................................................................................................................ 83
8 - PCB Layout
................................................................................................................................................... 81
8 -1 MAIN PCB
................................................................................................................................................... 82
8 -2 UNION PCB
9 - Circuit Diagram
.................................................................................................................................... 83
9 - 1 Circuit Diagram(MAIN)
.................................................................................................................................. 84
9 - 2 Circuit Diagram(UNION)
5-4-3
    -Controller I/O pin configuration and function
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 ...............................................................................................................
.......................................... 51