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Showing posts with label ringer. Show all posts
Showing posts with label ringer. Show all posts

Tuesday, November 18, 2014

Nokia 5220XM Ringer Hands Free Loud Speaker No Sound Solution

Heres the solution for Nokia 5220 Xpressmusic Ringer and Integrated Hands Free (IHF) Speaker that No sounds output can be heard on it.
If ever encountered this problem, you need to check the earpiece speaker first if it already busted or damaged.
If the speaker is working okay but still there is no audio sound output can be heard when being activated, you may use this solution below to trace the line paths and check particular components on Nokia 5220 PCB board that holds the IHF speaker circuit. This solution covered for left and right channel speakers connection.
Nokia 5220 Xpressmusic Ringer and Hands Free Speaker No Sound Repair Solution
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The IHF speaker left and right audio signal is feed from the power and audio IC (AVILMA) then filtered by a non polar capacitors before it feeds to the audio amplifier IC. The audio amplifier chip is the one that boosts or amplify the audio signals to make it sounds louder and better.
The boosted or amplified audio signal is then feeds across to a filter coils, bypass capacitors and an ESD protection resistors before it get through to the IHF Speakers.  Hints for Troubleshooting:
a) check the earpiece speaker first by using a multimeter.
b) clean the speaker terminals and contact pads.
c) check or replace the filter capacitors, filter coils and resistors if found damaged.
d) check the corresponding line paths of each corresponding connections
e) if all line paths and components is okay: Rework  the audio amplifier IC or replace if it doesnt work.
f) If all of the above is already been done but does not solved the problem, You may then proceed to rework the audio IC.Trace the line paths to each corresponding solder ball bumps that holds for the IHF audio signals before in-placing it back.
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Wednesday, November 12, 2014

Samsung C3222 Ringer Jumper Ways

Samsung C3222 Ringer Not Working Solution
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Sunday, November 9, 2014

NOKIA 1650 RINGER REPAIRING TIPS

NOKIA 1650 RINGER REPAIRING TIPS: Follow the image to solve nokia 1650 ringer problem.
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Thursday, August 21, 2014

K750 RINGER PROBLEM



K750 RINGER PROBLEM
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Saturday, August 16, 2014

Nokia 1200 ringer solution

This is a complete ringer solution of nokia 1200 phone.If someone face this problem.Then you can repair your problem using this solution.View the attachment below picture and read below note.






How to repair it : If your nokia 1200 ringer is not work then first check speaker next check speaker ways.if you see damage ringer wyas then make red mark jumper.If you see ringer ways is ok but problem still then rehot red mark ic and check if problem stilll then change ringer ic.
  
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