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LCD TV Service Manual
Hisense Confidential
Contents
Contents................................................................................................................................................................- 2 -
Service Manual ....................................................................................................................................................- 3 -
1. Precautions and notices..............................................................................................................................- 3 -
1.1 WARNING ......................................................................................................................................- 4 -
1.2 NOTES ............................................................................................................................................- 7 -
2. Product Function Specifications..............................................................................................................- 10 -
3. LCD Panel Spec.......................................................................................................................................- 11 -
3.1 LCD19W57:................................................................................................................................- 11 -
3.2 LCD26W57:................................................................................................................................- 12 -
3.3 LCD32W57 ...................................................................................................................................- 12 -
General Features..................................................................................................................................- 13 -
4. Chassis Layout and Overall Wiring Diagrams ........................................................................................- 14 -
4.1 Chassis Layout...............................................................................................................................- 14 -
4.4 Wires and Cables Overall Wiring Diagrams .................................................................................- 15 -
5. Factory/Service OSD Menu and Adjustment...........................................................................................- 18 -
5.1 To enter the Factory OSD Menu....................................................................................................- 18 -
5.2 Factory OSD Menu........................................................................................................................- 18 -
6. Software Upgrading.................................................................................................................................- 22 -
6.1 Get ready for upgrading.................................................................................................................- 22 -
6.2 Upgrading with the ISP_TOOL4.0.9.............................................................................................- 31 -
7. Troubleshooting.......................................................................................................................................- 36 -
7.1 Troubleshooting for Remote Control.............................................................................................- 36 -
7.2 Troubleshooting for Function Key.................................................................................................- 37 -
7.3 TV won’t Power On.......................................................................................................................- 38 -
7.4 Troubleshooting for Audio.............................................................................................................- 39 -
7.5 Troubleshooting for TV/VGA/HDMI input...................................................................................- 40 -
7.6 Troubleshooting for YPbPr input...................................................................................................- 41 -
7.7 Troubleshooting for Video/S-Video/ SCART input.......................................................................- 42 -
8. Explode View...........................................................................................................................................- 43 -
9 Schematic circuit diagram ........................................................................................................................- 43 -