Showing posts with label microphone. Show all posts
Showing posts with label microphone. Show all posts
Sunday, November 16, 2014
Nokia N97 Mic Mouthpiece microphone problem solution
This solution can be used as a guide to fix or repair Nokia N97 microphone problem issues. A failure that no voice can be heard from the caller on the device.
This solution solution shows the components location of Nokia N97 microphone circuit that needs to be check if the problem occurs.
Repair tips:
Ensure to restore or flash the device firmware first before trying to calibrate hardware components.
If flash firmware updating is already been done and nothing happens , you may then proceed to troubleshoot hardware components.
a) Trace and check the supply lines paths of the microphone module.
b) Check and or replace the resistors highlighted on solution above, the two resistors have 0 ohms resistance value while the other one has 100 ohms.
c) If all the resistors seems all working and or already replaced and the supply voltage is okay, you may then replace the digital microphone module.
For further troubleshooting Nokia N97 Microphone failure, there are instances that you may need to rework the audio IC(AVILMAS) and sometimes the problem lies on a faulty CPU IC (RAPIDO).
This solution solution shows the components location of Nokia N97 microphone circuit that needs to be check if the problem occurs.
Nokia N97 Mouthpiece Microphone Solution
Repair tips:
Ensure to restore or flash the device firmware first before trying to calibrate hardware components.
If flash firmware updating is already been done and nothing happens , you may then proceed to troubleshoot hardware components.
a) Trace and check the supply lines paths of the microphone module.
b) Check and or replace the resistors highlighted on solution above, the two resistors have 0 ohms resistance value while the other one has 100 ohms.
c) If all the resistors seems all working and or already replaced and the supply voltage is okay, you may then replace the digital microphone module.
For further troubleshooting Nokia N97 Microphone failure, there are instances that you may need to rework the audio IC(AVILMAS) and sometimes the problem lies on a faulty CPU IC (RAPIDO).
Sunday, November 9, 2014
NOKIA N73 MICROPHONE AND EARPIECE PROBLEM
Friday, October 17, 2014
Nokia X2 05 Mic problem solution Microphone not working
If mic is not working in Nokia X2-05. Microphone solution with jumpers, Low voice of Nokia X2-05 mic problem solution, Nokia X2-05 mic jumpers to make it solve.Nokia X2-02 Keypad Not Working Problem Solution Jumper Ways
If mic is not working or have a low voice it can be fault of mic and housing. Check Nokia X2-05 housing ( body ). All housing have a small whole at the point of mic. In some cases rust or dust cover this point and the voice can not reach proper to the mic point so make it clean if there is some dust on it.
After dis assembly of Nokia X2-05 look at the motherboard for rust carbon or burn parts. If you found some rust or carbon apply electronics cleaner on the mother board and apply hot air to make it dry proper.
Applying too much heat can damage the mother board and parts.It also can be harm for your skin.So keep in mind about normal heat flow when making it dry.
Remove mic and check all these tracks that are provided in above diagram to solve mic problem in Nokia X2-05. In diagram two different color lines are given to identify all parts that are used to solve Nokia X2-05 mic problem with jumpers.
If some parts are missing or damage apply jumper on these points where small circles are pointing in nokia mic repairing diagram above.
If mic is not working or have a low voice it can be fault of mic and housing. Check Nokia X2-05 housing ( body ). All housing have a small whole at the point of mic. In some cases rust or dust cover this point and the voice can not reach proper to the mic point so make it clean if there is some dust on it.
After dis assembly of Nokia X2-05 look at the motherboard for rust carbon or burn parts. If you found some rust or carbon apply electronics cleaner on the mother board and apply hot air to make it dry proper.
Applying too much heat can damage the mother board and parts.It also can be harm for your skin.So keep in mind about normal heat flow when making it dry.
Remove mic and check all these tracks that are provided in above diagram to solve mic problem in Nokia X2-05. In diagram two different color lines are given to identify all parts that are used to solve Nokia X2-05 mic problem with jumpers.
If some parts are missing or damage apply jumper on these points where small circles are pointing in nokia mic repairing diagram above.
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