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L2 Repair Enhance Document
TCL
Communication Ltd.
Rev.
Neon PRD62980/62981 L2 Enhance Repair Document
Page
1.0 3/73
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Content
1 Level 2 repair process .............................................................................................. 4
2 Warranty Check and Visual Inspection ................................................................... 5
2.1 Warranty confirmation of L1..................................................................................... 5
2.2 Visual mechanical check .......................................................................................... 5
2.3 Pretest ........................................................................................................................ 6
3. Software download ................................................................................................. 14
3.1 Equipments requested when download
：
............................................................. 14
3.2 Install of download Tool ........................................................................................... 15
3.3 SW download process ............................................................................................. 16
4 Disassembly and assembly PRD62980 ................................................................... 23
4.1 ESD Safety ................................................................................................................ 23
4.2 Disassembly tool ...................................................................................................... 23
4.3 Disassembly process ............................................................................................... 24
4.4 Disassembly process evaluation ........................................................................... 38
5 Disassembly Complete ........................................................................................... 39
6 Level 2 repair ........................................................................................................... 41
6.1 power on issue ......................................................................................................... 44
6.2 Charge issue ............................................................................................................. 45
6.3 Display issue ............................................................................................................ 46
6.4 Vibrator issue .......................................................................................................... 47
6.5 Touch panel issue ................................................................................................... 48
6.6 SIM recognize issue ................................................................................................ 49
6.7 TF card recognized issue ....................................................................................... 50
6.8 Main camera issue .................................................................................................. 51
6.9 Sub camera issue .................................................................................................... 52
6.10 MIC issue ................................................................................................................. 53
6.11 Speaker issue .......................................................................................................... 54
6.12 USB connector issue .............................................................................................. 55
7 Level 2 Enhance repair ........................................................................................... 56
7.1 Position of L2 enhance components on main PCBA and sub PCBA ................... 56
7.2 Trouble shootings for common failures ................................................................. 58
7.2.1 Power on issue ...................................................................................................... 59
7.2.2 Charge issue .......................................................................................................... 60
7.2.3 Display issue ......................................................................................................... 61
7.2.4 SIM/TF recognized issue ....................................................................................... 62
7.2.5 Main camera issue ................................................................................................ 63
7.2.6 Sub camera issue .................................................................................................. 64
7.2.7 MIC issue ................................................................................................................ 65
7.2.8 Speaker issue ........................................................................................................ 66
7.3 Level 2 enhance spare part list ............................................................................... 66
8 PCBA exchange ....................................................................................................... 66
9 Other component exchange ................................................................................... 67
10 Function Test ............................................................................................................. 67
APPENDIX ....................................................................................................................... 67