Lenovo A536 User manual

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Lenovo A536
Service Manual
LENOVO

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Content
1. How to assemble and disassemble LENOVO A536.................................................................3
1.1 The phone disassemble guide........................................................................................3
1.2 The phone assemble guide............................................................................................9
2. Main board and Sub FPC layout introduction .........................................................................10
2.1 Main board top view......................................................................................................10
2.2 Main board bottom view ...............................................................................................11
3. Troubleshooting Procedure.....................................................................................................12
3.1 No boot .........................................................................................................................12
3.2 Touch panel have no effect...........................................................................................13
3.3 Charging anomaly.........................................................................................................14
3.4 Calling receiver sound has poor quality .......................................................................16
3.5 Speaker has no sound..................................................................................................17
3.6 LCD has no display.......................................................................................................18
3.7 Phone crash..................................................................................................................20
3.8 Key has no effect..........................................................................................................21
3.9 Communication signal abnormality ..............................................................................22
3.10 Calling receiver has no sound......................................................................................23
3.11 Microphone has no effect .............................................................................................24
3.12 Display color distortion..................................................................................................25
3.13 Speaker tone distortion.................................................................................................26
3.14 Speaker tone smaller....................................................................................................27
3.15 No charging...................................................................................................................28
3.16 Camera has no effect ...................................................................................................29
3.17 Auto shutdown..............................................................................................................31
3.18 SIM Card has not be detected......................................................................................32

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1.How to assemble and disassemble
LENOVO A536
1.1 The phone disassemble guide
1) Remove battery cover
Remove battery cover from B cover at the buckle, shown as picture (1) and (2).
(1)
(2)
2) Remove screws
Remove the 7 screws as shown below. Use cross head driver to remove the screws.
Battery cover
Buckle

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Screw length to 1 & 2 & 3 & 4 positions are S1.6×L4.1×D2.6×T0.5
Screw length to 4 & 5 & 6 positions are M1.4X2.8
3) Remove B cover
Separate B cover from A cover at the buckle, then unclench B cover and A cover with a
plectrum alongside the shell gap.
1
2
5
6
7
3
4
Buckle
B cover

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4) Disassemble PCBA
Open the FPC connector of TP, LCD and Camera, and extract all the FPCs.
TP FPC is glued to the main board
Pull off side key FPC fromA cover, and remove it from main board with a soldering iron.
Side key FPC is glued to theA cover.
Remove the foam on the main board.
Side key FPC
LCD FPC
TP FPC
Camera FPC