L2 Repair Document TCLCommunication Ltd.
ONETOUCH 8085+LKB001X/A Level 2 Repair Document
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Content
1Level 2 repair process ..............................................................................................4
2Warranty Check and Visual Inspection ...................................................................6
2.1 Warranty confirmation of L1.....................................................................................6
2.2Visual mechanical check..........................................................................................9
2.3 Pretest......................................................................................................................10
3Battery......................................................................................................................17
3.1 Battery information.................................................................................................17
3.2 Battery test ..............................................................................................................20
3.3 Battery specification...............................................................................................22
3.4 Note of Battery ........................................................................................................24
4Tablet System install...............................................................................................24
4.1. Equipments requested when download：............................................................24
4.2 BIOS install process.................................................................................................24
4.3 OS install process....................................................................................................26
4.4 Check BIOS and OS version....................................................................................30
5LTE keyboard upgrade............................................................................................33
6 Disassembly and assembly 8085 and LKB001.........................................................37
6.1 ESD Safety................................................................................................................37
6.2 Disassembly tool......................................................................................................37
6.3 Disassembly process...............................................................................................38
6.4 Reassembly process................................................................................................52
5.5 Disassembly process evaluation............................................................................54
6Disassembly Complete...........................................................................................54
7Level 2 repair...........................................................................................................55
8PCBA exchange.......................................................................................................65
9Other component exchange...................................................................................66
10 Function test............................................................................................................66
