Keypad phones with Big spaeker Ic problem

 BAR PHONE SPEAKER AND EARPIECE PROBLEM

ALL CHINESE PHONES WITH BIG SPEAKER HAVE SOUND IC

PROBLEM:SPEAKER AND EAR SPEAKER NOT WORKING

SOLUTION:

FIRST ALL CHECK SPEAKERS IF SPEAKERS ARE NOT OK CHANGE SPEAKERS AND CHECK

IF PROBLEM NOT SOLVED THEN CHECK CURRENT ON POINTS OF SPEAKERS IF CURRENT IS NOT SHOWN IN SPEAKERS POINT THEN TRACE SPAEKERS CURRENT LINE AND JUMPER.

IF CURRENT AND SPEAKERS ARE OK WHAT TO DO?

ANSWER:

AS WE KNOW EVERY CHINESE PHONE WITH SPEAKER HAVE SOUND IC 

CHECK IC AREA ANY RESISTANCE OR CAPACITOR IS BROKEN THEN REPLACE BROKEN OR DAMAGED RESISTANCE OR CAPACITOR.SOMETIMES WE REMOVES CAPACITORS DUE TO SHORT CIRCUIT BUT CAPACITORS ARE VERY IMPORTANT IN SOUND IC AREA IF ANY CAPACITOR IS SHORT FROM SOUND IC AREA YOU NEED TO REPLACE THAT CAPACITOR.PROBABLY IN SOME CHINESE PHONES SOUND IC IS FOUND NEAR SIM SLOTS WHEN WE REMOVE OR INSERT SIM  A CAPACITOR WHICH ONE IS CONNECTED WHIT VBAT AND GND POINTS GOES BROKEN.IN RESULT OF BROKEN CAPACITOR SPEAKER AND EAR SPEAKER CAN'T WORK.WE NEED TO REPLACE THAT CAPACITOR AND THEN ENJOY YOUR PHONE.

HERE IS A VIDEO YOU CAN WATCH HOW TO FIX

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