USB connecting
failure or can not
search the disk
1>. Check if USB connector is OK, remove the
abnormity;
2>. Check if USB_DTC related circuit is OK,
remove the abnormity;
3>. Confirm if ASIC and related circuits are
OK; remove the abnormity.
Others
TV play/ no sound/
noise/ voice too low/
too high
1>. Check if AV connector and R315, C181 are
OK, remove the abnormity;
2>. Check if wires of microphone are solder
well, remove the abnormity;
3>. Check if microphone is OK; remove the
abnormity.
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