Keypad Faults (Refer To Keypad Circuitry); Keypad Faults Troubleshooting - Nokia 3806 Service Manual

RM-583
Baseband Description and Troubleshooting

Keypad faults (refer to Keypad circuitry)

Keypad is a separate FPCA connected with main board through a keypad connecter, so when there is
any keypad defect, follow the instruction below:
1. check keypad FPCA;
2. if FPCA is ok, check the connector in case any soldering issue;
3. if the connector is ok, turn to check and analyze main board.

Keypad faults troubleshooting

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