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LENOVO S960 Cellphone Service Manual

Check whether the connectors of the

LCD are attached correctly. Re-install

FPC. Check whether the cellphone

works.

Check whether the EMI components in LCD

channel on motherboard have dry joint

problems. Re-solder the EMI components.

Check whether connections between FPC

of LCD module and connectors on

motherboard are good. Reconnect them.

Check whether LCD backlight works.

Check whether the output of the backlight

circuit at the motherboard end is correct.

Check whether chip U1601 works.

Check whether the correct voltage is

applied on the positive and negative

backlight terminals of the LCD module.

Screen is blank.

Replace the LCD

module.

3.1.2 LCD backlight doesn't light up.

LCD

backlight

doesn't light up.

Replace the LCD

module.

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Replace U1601.