Hisense 55E77HQ User Manual

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Contents
Contents ....................................................................................................................................................................... - 3 -
Service Manual ........................................................................................................................................................... - 4 -
1. Precautions and notices ..................................................................................................................................... - 4 -
1.1 Warning ................................................................................................................................................... - 5 -
1.2 Notes ....................................................................................................................................................... - 7 -
2. TV boards: ...................................................................................................................................................... - 10 -
2.1 Main board layout ................................................................................................................................. - 10 -
2.2 TV boards part list ................................................................................................................................ - 16 -
3. Factory/Service OSD Menu and Adjustment .................................................................................................. - 17 -
3.1 Remote Control ..................................................................................................................................... - 17 -
3.2 Factory OSD Menu ............................................................................................................................... - 19 -
4. Software Upgrading ........................................................................................................................................ - 24 -
4.1 USB Upgrade ........................................................................................................................................ - 24 -
4.2 Flash Tool upgrading ............................................................................................................................ - 26 -
5. Trouble shooting ............................................................................................................................................. - 29 -
5.1 Troubleshooting for Remote Control .................................................................................................... - 29 -
5.2 Troubleshooting for Function Key ........................................................................................................ - 30 -
5.3 TV won’t Power On .............................................................................................................................. - 31 -
5.4 Troubleshooting for Audio .................................................................................................................... - 32 -
5.5 Troubleshooting for TV/VGA/HDMI input .......................................................................................... - 33 -
5.6 Troubleshooting for YPbPr input .......................................................................................................... - 34 -
5.7 Troubleshooting for Video input ........................................................................................................... - 35 -
6. Signals Block Diagram & power assign & schematic diagram ...................................................................... - 36 -

Hisense 55E77HQ Specifications

General

Brand	Hisense
Model	55E77HQ
Category	LCD TV
Language	English