Here's the Nokia 2720 fold solution for not working buzzer or hands free speaker problem. This solution provides some simple hints on how to fix the buzzer problem.
The Nokia 2720 the buzzer is mounted near the LCD screen displays and also associated with the LCD flex ribbon cable assembly connection. Refer to the solution below and follow some step by step guide on how to fix the buzzer or ringer problem.
Nokia 2720 fold buzzer, hands free speaker problem solution
1. Check the flex ribbon cable assemblies for possible damaged, then replace if confirmed faulty.
2. Check the phone loud ringer speaker using a multimeter, or replace with a new one.
3. Check/clean the LCD flex ribbon cable pin connector.
4. Trace the connection from the pin 7 and 10 down to the two 120 ohms resistors near the LITEPLUS IC.
5. Check/replace the two 120 ohms resistors.
6. If the above procedures does not solved the problem, the possible faulty will be on the liteplus IC.
Enjoy!
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