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Current version by: oldturkey03 (vote details) ,

Title:

Screen flickers and turns off, inverter or inverter board?

Text:

I know that its likely the inverter or the inverter board, but I was hoping that someone could help me determine which.

My backlight works sometimes - but after a short period it usually goes dark.  This can be fixed temporarily by turning the brightness all the way down and then up.

This fix only works sometime, and some jiggling of the screen usually helps if its not working. When it doesn't work, the screen flashes on for a fraction of a second then off immediately after.

I've opened it up, and neither the inverter board or the cable look toasted or worn out really, although I didn't get to see all of the cable.

I'm thinking its the board, as the screen will flicker for a fraction of a second when the brightness is increased from 0 to 1, which to me seems to imply that the cable is ok as if no power was reaching the board it would not flicker at all.  Then again, I'm no expert in this.

I've read through most of the other threads, but couldn't find the answer, so sorry if this is a repeat question!

Thanks in advance for all your help, and the sweet guides on this site.  Oh and I'm fairly savvy so feel free to ask whatever!

Device:

MacBook Core 2 Duo

Status:

open

Accepted Answer:

82131

Original post by: Matt ,

Title:

Screen flickers and turns off, inverter or inverter board?

Text:

I know that its likely the inverter or the inverter board, but I was hoping that someone could help me determine which.

My backlight works sometimes - but after a short period it usually goes dark.  This can be fixed temporarily by turning the brightness all the way down and then up.

This fix only works sometime, and some jiggling of the screen usually helps if its not working. When it doesn't work, the screen flashes on for a fraction of a second then off immediately after.

I've opened it up, and neither the inverter board or the cable look toasted or worn out really, although I didn't get to see all of the cable.

I'm thinking its the board, as the screen will flicker for a fraction of a second when the brightness is increased from 0 to 1, which to me seems to imply that the cable is ok as if no power was reaching the board it would not flicker at all.  Then again, I'm no expert in this.

I've read through most of the other threads, but couldn't find the answer, so sorry if this is a repeat question!

Thanks in advance for all your help, and the sweet guides on this site.  Oh and I'm fairly savvy so feel free to ask whatever!

Device:

MacBook Core 2 Duo

Status:

open