Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
Error symptom
Content
②
①
① Check the contact condition of or 20V connector of Main Board.
② Measure the 20V input voltage supplied from Power Board.
(If there is no input voltage, remove and check the connector.)
③ Connect the tester RX1 to the speaker terminal and if you hear the Chik Chik sound
when you touch the GND and output terminal, the speaker is normal.
Checking order when there is no audio
Established
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