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4 Troubleshooting
4-1 No Power
Does proper DC 13V
appear at DC jack connected
to at Pin 1, 2 of CN600?
Yes
Does proper DC 5V
appear at Pin 6, 7 of
CN600?
Yes
Does proper DC 3.3V
appear at Pin 2 of IC601?
Yes
Does proper DC 3.3V
appear at
Pin 2 of IC400, IC603?
Yes
Does proper DC 1.8 V
appear at Pin 2 of IC602?
Yes
Does proper DC 13V appear
at pin 7,8 and DC 5V appear
at pin 5,6 of IC600 ?
Yes
Does proper DC 5V appear
at pin 3 of IC606 ?
Yes
Does proper DC 5V appear
at pin 3 of IC608 ?
Yes
Replace main board
No
Check SMPS PCB and
adapter.
No
Check SMPS PCB and
adapter.
No
Check IC601.
No
Check IC603.
No
Check IC602.
No
Check IC600.
No
Check IC606.
No
Check IC608.
4 Troubleshooting
4-1
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