Display Faults - Nokia 1508 Manual

Baseband description and troubleshooting

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1508(RM-388)

Baseband Description and Troubleshooting

Audio PA Circuitry

Display Faults

Display fault items are listed as following: white panel, backlight N/G, display flowery

or color abnormal. First check if the LCD is well connected with the LCD, if not well

connected or poor welding, replace the connection or weld it again. If the connection

is good, the data input on LCD and its operation voltage should be checked. If the

results show poor condition, then find the fault reason and do the replacement and

double welding. More attention should be paid on CPU cold welding.

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Rm-388