Lenovo A536 Service Manual - Page 19

Browse online or download pdf Service Manual for Cell Phone Lenovo A536. Lenovo A536 32 pages. Lenovo a536
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Lenovo A536 Service Manual
3.6.2 LCD has no display
LCD has no
backlight
Check whether the connection
status
between
module FPC connector and the
motherboard
normal, and reconnect the
connector whether the phone is
working normal.
Replace the LCD module,
and make sure whether the
LCD has the backlight.
Check whether the LCD
backlight
voltage is exceeding 20V.
Checks the SMT quality of
LCD backlight driver IC.
Whether these parts are
SMT good?
the
LCD
connector
is
N
N
driver
output
N
Y
OK
Y
OK
The backlight circuit
Y
is normal, and the
LCD module is bad.
Y
OK
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