4. TROUBLE SHOOTING
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Only for training and service purposes
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CHECKING FLOW
START
Check the waveform of
CN204 is PWM (0V~VBAT)
Speaker
working well !
Check the waveform of
TP1 is PWM (0V~VBAT)?
Re-Download
Re-solder FB201, FB202
Does Speaker Work
Properly?
Clean CN204 or
Change the Speaker
Play Sound (Midi)
YES
NO
YES
NO
NO
Check the waveform
at TP2 is same as TP1?
Re-Download
Or Re-solder R208, R209
NO
YES