MIC CONVERT AUDIO SIGNAL IN SOUND SIGNAL,OK TESTING OF MIC .SET M/M ON BUZZ MODE TEST BOTH LEGS OF MIC ONE SIDE SHOWS '1' AND ANOTHER IDE SHOWS VALUE BETWEEN,900---1800 WITHOUT BEEP THEN MIC OK OTHER WISE FAULTY
VIBRATOR-IT GENERATE VIBRATION DURING CALL.OR ANY OTHER FUNCTION,OK TESTING OF VIBRATOR SET M/M ON BUZZ MODE TEST BITH PIN OF VIBRATOR IF SHOWS SOME VALUE THEN VIB IS OK
BATTERY-BATTERY'WORK SUPPLY POWER TO ALL SECTION AND PART OF MOBILE OKTESTING OF BATTERY SET M/M ON 20 DCV MODE TEST ITS NEGATIVE AND POSITIVE POINT IF SHOWS VOLTAGE 3.70V THEN BATTERY IS OK
VIBRATOR-IT GENERATE VIBRATION DURING CALL.OR ANY OTHER FUNCTION,OK TESTING OF VIBRATOR SET M/M ON BUZZ MODE TEST BITH PIN OF VIBRATOR IF SHOWS SOME VALUE THEN VIB IS OK
BATTERY-BATTERY'WORK SUPPLY POWER TO ALL SECTION AND PART OF MOBILE OKTESTING OF BATTERY SET M/M ON 20 DCV MODE TEST ITS NEGATIVE AND POSITIVE POINT IF SHOWS VOLTAGE 3.70V THEN BATTERY IS OK
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