Text preview for : Toshiba_15VL56_20VL56.rar part of TOSHIBA Toshiba 15VL56 20VL56 TOSHIBA LCD Proj Toshiba_15VL56_20VL56.rar
Back to : Toshiba_15VL56_20VL56.rar | Home
FILE NO. 050-200533
SERVICE MANUAL
LCD Color Television
15VL56B
20VL56B
20VL56G
TOSHIBA CORPORATION, 2005 Published in Japan, Sep. 2005 (YC)
TABLE OF CONTENTS
SERVICE SAFETY PRECAUTIONS ................................................................................................................................... 3
HANDLING THE LCD MODULE ......................................................................................................................................... 5
1. SERVICE MODE ............................................................................................................................................................. 7
1-1. STARTING SERVICE MODE .................................................................................................................................... 7
2. ADJUSTMENT ................................................................................................................................................................ 9
2-1. ADJUSTMENT TOOLS AND CONDITIONS ............................................................................................................ 9
2-2. AUTO GAIN/OFFSET ADJUSTMENT ...................................................................................................................... 9
2-3. DDC EDID DATA READ & WRITE .......................................................................................................................... 10
3. VCTI FIRMWARE INSTALLATIONS/UPGRADING ....................................................................................................... 20
3-1. VCTI FIRMWARE INSTALLATIONS ....................................................................................................................... 21
3-2. SCALER FIRMWARE INSTALLATIONS ................................................................................................................. 27
4. TROUBLESHOOTING ................................................................................................................................................... 34
5. EXPLODED VIEW ......................................................................................................................................................... 39
6. CHASSIS AND CABINET REPLACEMENT PARTS LIST ............................................................................................ 40
7. PC BOARDS TOP & BOTTOM VIEW ............................................................................................................................ 49
8. SCHEMATIC DIAGRAM ................................................................................................................................................ 52
8-1. WIRING DIAGRAM ................................................................................................................................................. 53
8-2. BLOCK DIAGRAM (20VL56B/G) ............................................................................................................................ 54
8-3. BLOCK DIAGRAM (15VL56B) ................................................................................................................................ 55
9. SPECIFICATIONS ......................................................................................................................................................... 74
-2-
SERVICE SAFETY PRECAUTIONS
GENERAL ADJUSTMENTS