I suspect the LCD backlights are faulty and cause the Lcd monitor to shut down the backlight.
Question: If i connect the suspected backlights to another good 15 inches LCd monitor and turn it on.
Will it damage the good 15 inches LCd monitor?(both are HP, 15inches, but different model and use different LCD panel and different inverter design. The inverter plug for both of them are the same. number of lamp in the panel is the same)
Will this test whether the backlight is faulty?