WW Service TS
30
17.1.2
Connecting the phone and computer through USB line,
but not any new device was found in the computer
N
Y
Y
Connecting the phone and
computer
through
USB
line, but not any new device
was found in the computer.
Whether the charging is normal after
replace the charger or USB line?
Replace the charger
Whether the charging is normal after
replace the battery? Measure the battery
voltage, whether it is less than 3V?
Replace the battery
Checks the SMT quality of these
components include the PMU PM8941
(U1001), USB connecter (J2307), and
the peripheral parts. Whether these
parts are SMT good? The phone is
work good after heating these parts?
Y
OK
N
Replace the PMIC
(U1001)
N
Y
OK
Summary of Contents for VIBE Z K910L
Page 1: ...WW Service TS 1 VIBE Z K910L Service Manual LENOVO ...
Page 6: ...WW Service TS 6 main board ...
Page 17: ...WW Service TS 17 5 1 3 The Power on Sequence ...
Page 22: ...WW Service TS 22 9 Main board and Sub FPC layout introduction 10 Main board top view ...
Page 23: ...WW Service TS 23 11 Main board bottom view 12 Sub FPC top view ...
Page 24: ...WW Service TS 24 13 Sub FPC bottom view ...
Page 26: ...WW Service TS 26 Y Change CPU chip U100 ...
Page 29: ...WW Service TS 29 ...
Page 32: ...WW Service TS 32 19 Speaker has no sound ...
Page 35: ...WW Service TS 35 20 1 2 LCD has no backlight ...
Page 37: ...WW Service TS 37 21 Phone crash ...
Page 39: ...WW Service TS 39 22 Key has no effect ...
Page 41: ...WW Service TS 41 23 Communication signal abnormality ...
Page 43: ...WW Service TS 43 24 Calling receiver has no sound ...
Page 45: ...WW Service TS 45 25 Display color distortion ...