Product specifications

4-1

4. Troubleshooting

4-1. Troubleshooting

Set custom mode as follows before beginning a repair. 1.

B1630N/B1930N B1730NW/B1930NW B2030N B2230N

Resolution:1360x768

V-frequency:60Hz

H-frequency:47.7kHz

Resolution:1440x900

V-frequency:75Hz

H-frequency:70.6kHz

Resolution:1600x900

V-frequency:60Hz

H-frequency:60kHz

Resolution:1920 x 1080

V-frequency:60Hz

H-frequency:67.5kHz

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, I/P PBA

• When 5V is generated but a blank screen is displayed: Main PCB

• When 5V is not generated: I/P PBA

“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.