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FILE NO. 050-200515
SERVICE MANUAL
LCD Color Television
15CL7E/20CL7E
15CL7A/20CL7A
15CL7H/20CL7H
15CL7M/20CL7M
15CL7R/20CL7R
15CL7T/20CL7T
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
1-2. SETTING HOTEL MODE ......................................................................................................................................... 9
2. ADJUSTMENT .............................................................................................................................................................. 11
2-1. ADJUSTMENT TOOLS AND CONDITIONS .......................................................................................................... 11
2-2. AUTO GAIN/OFFSET ADJUSTMENT .................................................................................................................... 11
2-3. DDC EDID DATA READ & WRITE .......................................................................................................................... 12
3. VCTI FIRMWARE INSTALLATIONS/UPGRADING ....................................................................................................... 22
3-1. VCTI FIRMWARE INSTALLATIONS ....................................................................................................................... 23
3-2. SCALER FIRMWARE INSTALLATIONS ................................................................................................................. 29
4. TROUBLESHOOTING ................................................................................................................................................... 36
4-1. 15/20CL7E/A/H/M/T ............................................................................................................................................... 36
4-2. 20CL7R .................................................................................................................................................................. 42
5. EXPLODED VIEW ......................................................................................................................................................... 47
6. CHASSIS AND CABINET REPLACEMENT PARTS LIST ............................................................................................ 48
7. PC BOARDS TOP & BOTTOM VIEW ............................................................................................................................ 59
8. SCHEMATIC DIAGRAM ................................................................................................................................................ 66
8-1. WIRING DIAGRAM ................................................................................................................................................. 67
8-2. BLOCK DIAGRAM (15/20CL7E/A/H/M/T) .............................................................................................................. 68
8-3. BLOCK DIAGRAM (20CL7R) ................................................................................................................................. 69
8-4. BLOCK DIAGRAM (15CL7R) ................................................................................................................................. 70
9. SPECIFICATIONS ......................................................................................................................................................... 98
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SERVICE SAFETY PRECAUTIONS
GENERAL ADJUSTMENTS