Having problems with your ViewSonic VA702b 17" LCD Monitor ?
Why is my screen black - ViewSonic VA702b 17" LCD Monitor
Most likely it is because the backlights for the screen are not coming on, this can be due to a fault either with the inverter circuit which drives the backlights, you would first need to check that the power supply is providing voltage to the inverters. Or possibly the backlights themselves are at fault in which case the screen would need replaced.
Repair Help & Product Troubleshooting for ViewSonic VA702b 17" LCD Monitor
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