Samsung 173P PLUS - Troubleshooting; No Power (DE17 PS;DE19 PS)

4 Troubleshooting
4-1
4 Troubleshooting
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4-1 No Power (DE17PS/DE19PS)
Does proper DC 14V
appear at Pin 2 of
CN600 or C105 separately?
Check the stand cable and power
adaptor.
Check Function ass'y.
Yes
No
When Pin 1 of IC601 is DC 5V
does proper DC 3.3V appear at
Pin 3 of IC601?
Check IC601 and related circuit.
Yes
No
When Pin 4 of IC603 is DC
3.3V does proper DC 1.8V
appear at
Pin 2 and 6 of IC600?
Check IC602, IC603 and related
circuit.
No
Yes
When Pin 3 of IC607 is
DC 5V does proper DC 3.3V
appear at Pin 4 of IC607?
Check IC607 and related circuit.
No
Yes
When Pin 4 of IC608 is
DC 3.3V does proper DC 1.8V
appear at Pin 2 of IC606?
Check IC606, IC608 and related
circuit.
No