Chosen Solution
Hi, I’ve replaced the inverter cable and the inverter but I still have no backlight. I did inadvertently try and put the cable into the motherboard socket upside down - is it possible i’ve damaged the contacts in such a way they no longer make contact with the cable? I didn’t really force it before I figured out it was upside down but who knows.. The fault was definitely with the cable originally - if i moved the cable the backlight would go but eventually it did stop working even when I moved the cable. Any advice gratefully received. cheers Nigel.
Well, I don’t know for example if the cable was connected to something on the other end. A test you could make is placing the original cable back like it was, and check what happens. You should test with all the combinations, I fear. Place back the old cable and the old inverter, and check if “jiggling” it works. Then the new cable and the old inverter, then the old cable with the new inverter. Check what happens. You could also find a multimeter, and check if there’s energy running in your new cable. Also, the culprits for an ailing backlight are four, with the latter being an issue so rare to be negligible: A worn out ord damaged cableA worn out inverterAn ailing CCFL lamp in the LCDRuined capacitors on the Logic Board So, check if there’s still energy running in the cable, maybe do a test with the old inverter too. Then, to do a complete troubleshooting, you should try with another LCD panel.
