Chosen Solution
hey guys, I have already posted here before. No backlight, tried inverter, what now? Here is a short summary about my problem:
- Backlight did not work, but screen is visible with flashlight
- I got a picture on an external monitor when connecting to my Macbook
- I had no luck with changing the inverter and the inverter cable With help of the F1 and F2 keys I observed that when using the F1 key in order to shut down the backlight, it was possible to bring back the backlight by pressing only ONE TIME the F2 key. But the backlight holds only for one second. Afterwards I tried this by moving the display to different angles and I found out that at a certain angle backlight will last for a very long time. This procedure only works with the F1 and F2 combination! What could be the reason for my problem? Have I bought a faulty inverter cable?
The first place to start is by figuring out if you purchased a faulty inverter cable as you mention changing screen angles can play a part in if or how ling it works. If you own or have access to a multimeter/multitester (An analog one with the needle, is best for testing internal breaks in wires. The digital ones have slow reaction time.) you can test the integrity of the inverter cable with a continuity test (resistance test on it’s lowest setting) while moving the wires around. If the needle sweeps hard at any point the cable more than likely will be the cause. By doing this you can determine if this part is at least part of the problem or not. Many people would frown upon this suggestion but, you can purchase a meter such as this and return it to the store after your minute with it is done.
