5.0 TROUBLESHOOTING
SYMPTOM: USB CANNOT WORK
SYMPTOM: THE USB DOESN
'
T WORK
Start
Add external adaptor on USB
Or
Change another USB
Check the external USB
power consumption ?
Replace main board
Over spec
Yes
Yes
USB Reinsertion
NO
Check USB INSERTION
OK?
PET830 USB current limit Is 500mA
SYMPTOM: NO SOUND FROM HEADPHONE
Summary of Contents for PET830
Page 7: ...3 0 INSTRUCTION FOR USE ...
Page 13: ...4 0 MECHANICAL INSTRUCTION 19 Finally we will get the back cabinet ...
Page 22: ...6 0 OVERALL BLOCK DIAGRAM ...
Page 48: ...7 0 ELECTRICAL DIAGRAM ...
Page 49: ...7 0 ELECTRICAL DIAGRAM ...
Page 51: ...9 0 REVISION LIST Version 1 0 3141 785 31570 Initial release PET830 00 05 37 44 58 75 ...