MHC-V3/V4D
36
DAMP Mount Diagnosis Flow (MHC-V3/V4D)
PLAY MUSIC
Is there audio output from DAMP Board?
Check CN1005 (pin1 refer to pin9).
Is the voltage = 50V?
Check speaker output CN1007.
Is the power voltage = 25V?
Check IC1003 (pin1).
Is the power voltage = 12V?
Check CN1001 (pin5).
Is the voltage = 3.3V (MAIN ON) ?
Reinsert the wire and check again. If it is OK,
check the SMPS PWB position.
Reinsert FFC and check again. If it is OK, check
Aragon PWB position.
END
Yes
No
No
Check CN1001 (pin7).
Is the voltage = 3.3V (AMP-RESET)?
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
No
Ver. 1.3
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