REFERENCE Huawei y7 pro 2019 no service no sounds

yourtech

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No sounds step 1: check speaker use tester ohm mode , good it has continuity

No sounds step 2: use tester diode mode test speaker line on main board , all in good readings.


No sounds step 3: test speaker line on charging board use buzzer mode then check from speaker line to fpc , both line has continuity.

No sounds step 4: check fpc connector/FLEX use buzzer mode on tester check speaker line, Boom!!! kita na agad salarin (SPKR_DRVR_M) line no continuity. Flex issue see pic bellow .

NO service also fix after repair fpc/FLEX tsamba!!!!

20230116_215052.jpg


20230116_214950.jpg
 
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