I'm repairing a HP 530 laptop with bad screen image. The image does not flicker, the corruption pattern is static.
If I connect an external monitor through the VGA port the image is fine, therefore I rule out the motherboard/GPU and I'm left with three components as the only suspects:
- Flat cable
- LCD inverter
- LCD panel
Do you think I can rule out the inverter too? If I understand correctly what it does, if it fails I get no image at all, therefore a kind of on/off failure type.
I would rule out the flat cable too, I replaced it a million times on another laptop and it also causes a blank screen issue. Moreover, flat cable problems cause intermittent failure which depends on LCD hinge position too.
I could replace the inverter first and see what happens (it's cheaper than the screen) but I don't want to waste money if you can explain me how such failure cannot be caused by the inverter