When The Power Does Not Turn On - Samsung P2250(G) Service Manual

4. Troubleshooting

4-2. When the Power Does Not Turn On

- When turning on the Power button after connecting the power cable, the LED at the front of the
Symptom
monitor does not operate.
- When turning on the Power button after connecting the power cable, the LED at the front of the
monitor does not operate.
- Check the IP board power fuse and the IP board output power.
Major checkpoints
- Check the connections for the IP board and the Main board inside the monitor.
- Check the Main board power part and also check whether there is any abnormal output at any of
the other output terminals.
1 Is DC 5V measured at pins 5, 6 of
the CN600 connector when pins 3, 4
2 Is DC 3.3V measured at pin 3 of
Diagnostics
3 Is DC 1.8V measured at pin 2 of
Caution Make sure to disconnect the power before working on the IP board.
4-2
are 0V?
Yes
IC602 when pin 1 is DC 5V?
Yes
IC601 when pin 3 is DC 5V?
Yes
Check and replace the IP board.
IC601
IC602
Yes
Check the connection status for
No
Check the circuits related to
No
Check the circuits related to
No
the function assy.
Replace the IP board.
IC602.
IC601.