Toshiba 14DL74, Руководство по обслуживанию

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Table of Contents
2
WARNINGS ...............................................................................................................................................................3
SERVICE SAFETY PRECAUTIONS .........................................................................................................................4
Examples of Marks................................................................................................................................................. 4
HANDLING THE LCD MODULE ................................................................................................................................5
Safety Precautions................................................................................................................................................. 5
Precautions for Handling the LCD Module............................................................................................................. 5
LOCATION OF CONTROLS ......................................................................................................................................6
TV Front ................................................................................................................................................................. 6
TV Rear.................................................................................................................................................................. 6
Remote Control ..................................................................................................................................................... 7
LAYOUT OF MAJOR BOARDS ................................................................................................................................8
MECHANICAL DISASSEMBLY .................................................................................................................................9
PACKING DISASSEMBLY .......................................................................................................................................12
WIRING CONNECTION DIAGRAM .........................................................................................................................13
CIRCUIT BOARD DIAGRAMS .................................................................................................................................14
MAINBOARD ....................................................................................................................................................... 14
KEY/CONTROL BOARD...................................................................................................................................... 18
LIGHT-RECEIVING BOARD................................................................................................................................ 18
EARPHONE BOARD ........................................................................................................................................... 19
SCHEMATIC DIAGRAMS ........................................................................................................................................20
BLOCK DIAGRAM ............................................................................................................................................... 21
STANDARD MCU ................................................................................................................................................ 22
SCALER............................................................................................................................................................... 23
SCALER MEMORY.............................................................................................................................................. 24
VIDEO DECODER ............................................................................................................................................... 25
V-CHIP & CC ....................................................................................................................................................... 26
AUDIO PROCESSOR.......................................................................................................................................... 27
POWER AMPLIFIER............................................................................................................................................ 28
AV SWITCH ......................................................................................................................................................... 29
NTSC TUNER ...................................................................................................................................................... 30
USA MTS ............................................................................................................................................................. 31
PANEL CONNECTOR ......................................................................................................................................... 32
POWER SYSTEMS ............................................................................................................................................. 33
I/O CONNECTOR ................................................................................................................................................ 34
USA 480P ............................................................................................................................................................ 35
IR BOARD............................................................................................................................................................ 36
EARPHONE BOARD ........................................................................................................................................... 37
KEYPAD BOARD................................................................................................................................................. 38
CHASSIS AND CABINET REPLACEMENT PARTS LIST ......................................................................................39
14DL74 ................................................................................................................................................................ 39
20DL74 ................................................................................................................................................................ 40
SPECIFICATIONS ....................................................................................................................................................41
14 / 20DL74 LCD TV Specifications ...................................................................................................................... 41