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