Troubleshooting - Samsung S22A350H Service Manual

4. Troubleshooting

4-1. Troubleshooting
1. Set custom mode as follows before beginning a repair.
Resolution: 1920 X 1080
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H-frequency: 67.5 kHz
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V-frequency: 60 Hz
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2. If the screen is blank, check whether the power cord is connected correctly.
3. The circuits to check:
• When the raster does not appear: The Function PCB, Main PCB
• When 5V is generated but a blank screen is displayed: Main PCB
4. "Press the MENU button and hold down the, "
factory mode.
(Enter, Source)" button for more than five (5) seconds to return the monitor to
4. Troubleshooting
4-1