No Power - Samsung 2032BW Service Manual

4. Troubleshooting

4-2. No Power

When turning on the Power button after connecting the power, the LED at the front of the
-
Symptom
monitor does not operate.
Check the IP board power fuse and the IP board output power.
-
Major Check the connections for the IP board and the Main board inside the monitor.
-
checkpoints
Check the Main board power part and check also whether there is any abnormal output at other
-
output terminals.
Diagnostics
When Pin 4 of CN600 is 0V,
Does proper DC 14V appear at pin 5 of
When Pin 1 of IC 702 is DC 14V,
Does proper DC5V appear at pin1 of
When pin 1 of IC 601 is DC 5V,
Proper DC 3.3V appear at pin 3 of IC
When pin 3 of IC 602 is DC 5V,
Proper DC 1.8V appear at pin 2 of IC
Caution Make sure to disconnect the power before working on the IP board.
4-2
All manuals and user guides at all-guides.com
Main Board Front
Yes
CN600?
Yes
IC601
Yes
601
Yes
602
Check function assy.
No
Replace IP board.
Check IC 701 and related
No
circuit.
No Check IC 601 and related
circuit.
Check IC 602 and related
No
circuit.