Please read this manual carefully before maintenance
Chapter1 Safety and notes.................................................................................................................................................. 3
1.1 Installation notes.................................................................................................................................................. 3
1.2 Attention points of operation and using............................................................................................................... 3
1.3 Storage notes........................................................................................................................................................ 3
1.4 Dismantling notes ................................................................................................................................................ 3
1.5 High-voltage warning........................................................................................................................................... 4
Chapter2 whole machine standard and terminal functions ................................................................................................ 4
2.1 Basic standard ...................................................................................................................................................... 4
2.2 Introduction of terminals(practicality photos)...................................................................................................... 5
Chapter3 Main chip functions and the introductions of power supply .............................................................................. 6
3.1 Main IC and functions of HLS71EJ-IU ............................................................................................................... 6
3.2 Pin function description of HLS71EJ-IU chip..................................................................................................... 8
3.2.1 MSD6586 recommended operating power conditons............................................................................... 8
3.2.2 MSH6110A DC-DC brief introduction..................................................................................................... 8
3.2.3 SY8089AAAC Brief introduction............................................................................................................. 8
3.2.4 TPS562201 Brief introduction.................................................................................................................. 9
3.2.4 TPS563201 Brief introduction.................................................................................................................. 9
3.2.4 TPA3136D Brief introduction........................................................................................................... 10
3.2.8 Tuner R842 Brief introduction........................................................................................................11
Chapter4 The chassis frame diagram, mainboard power supply systems, mainboard interface definition.......................11
4.1 Power supply system...........................................................................................................................................11
4.1.1 The composition and distribution of the TV power supply..................................................................... 12
4.1.3 Interface definition.................................................................................................................................. 14
Chapter5 Software upgrade instructions.......................................................................................................................... 14
5.1 Software upgrade method---there are two kinds of upgrade methods................................................................ 14
5.2 upgrade method 1：........................................................................................................................................... 14
5.3 Software upgrade method2：Use a U diskincluding the upgrade programme directly upgrade....................... 19
Chapter6: Classical accident maintenance procedures and examples.............................................................................. 23
6.1 The thinking of don’t boot.................................................................................................................................. 23
6.2 Common problems for your reference............................................................................................................... 23
Chapter7 Factory mode parameter setting instructions and notes.................................................................................... 23
Expert....................................................................................................................................................................... 26
Specific application support..................................................................................................................................... 27
Appendix ：Circuit Schematic Diagram...................................................................................................................... 27
