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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 -

2.1.1 7343 main board layout ..................................................................................................................... - 10 -

2.1.2 7677 main board layout ..................................................................................................................... - 12 -

2.1.3 6888 main board layout ..................................................................................................................... - 14 -

2.2 Main board difference ........................................................................................................................... - 16 -

3. Factory/Service OSD Menu and Adjustment .................................................................................................. - 17 -

3.1 Remote Control ..................................................................................................................................... - 17 -

3.2 How to enter the Factory OSD Menu ................................................................................................... - 18 -

3.3 Factory OSD Menu ............................................................................................................................... - 21 -

4. Software Upgrading ........................................................................................................................................ - 29 -

4.1 USB Upgrading .................................................................................................................................... - 29 -

4.2 USB upgrade fail .................................................................................................................................. - 31 -

4.3 Upgrading with the FlashTool 0.7.0.2.exe ............................................................................................ - 33 -

5. Trouble shooting ............................................................................................................................................. - 36 -

5.1 Troubleshooting for Remote Control .................................................................................................... - 37 -

5.2 Troubleshooting for Function Key ........................................................................................................ - 38 -

5.3 TV won’t Power On .............................................................................................................................. - 39 -

5.4 Troubleshooting for Audio .................................................................................................................... - 40 -

5.5 Troubleshooting for TV/VGA/HDMI ................................................................................................... - 41 -

5.6 Troubleshooting for YPbPr ................................................................................................................... - 42 -

5.7 Troubleshooting for Video .................................................................................................................... - 43 -

5.7 Troubleshooting for WIFI ..................................................................................................................... - 44 -

6. Signals Block Diagram & power assign & schematic diagram : .................................................................... - 45 -

Brand	Hisense
Model	ISDB-T
Category	LCD TV
Language	English

Hisense ISDB-T User Manual

Table of Contents

Questions and Answers:

Hisense ISDB-T Specifications

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