Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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I have no backlight after multiple repairs 13" Macbook

Mid 2007 machine: I broke my LCD display and found a replacement off ebay. It came with the wiring harness, inverter and all the metal brackets for $100. I was nervous because this seemed to good to be true for $100. I changed it out step for step from the repair section and got nothing. So I ordered another LCD, and inverter from here. Did everything step by step again with no luck. I tried one more inverter and now I can see the display if I put it at an angle but there is no light at all. I have no idea were to go from here. Everything else works fine on it because I am using it on an external monitor, but that defeats the purpose of having a laptop. Any ideas would be greatly appreciated!

This is the model info off the backside of the kepad:

A1181 (Mid 2007)

Black/2.16/2x1G/200/SD/AP/BT

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Could be a broken backlight bulb, the inverter cable or the inverter board that may be bad. I worked on machines (mostly iBooks G4) that had been dropped with broken hinges and the inverter cable shorted in the hinge blowing a microfuse that protects the inverter circuitry on the logic board so if all other lightning components are in working condition then the microfuse can be the culprit.

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I have 3 inverters and 2 LCDs and they all appear to be working. I pulled it apart to swap inverters and noticed while the track pad is loose. You can get to the inverter cable where it connects to the logic board, if I touch the cable with a plastic spudger the screen will flash light, but wont stay lit. So with fingers crossed I am hoping it is a $30 cable not a $500 dollar logic board.

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Yes inverter cable would be the first part I would replace. Make sure the cable is well connected in the inverter board (not an easy task with the Macbook to reach this connector).

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Try running the Apple Hardware Test, I have a feeling more than just the LCD could be damaged.

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rab777hp

Is that the disks that came with it?

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No, I just updated my answer with a link explaining it all.

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I ran the test and it says no problem found.

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Hi

I had the same problems with my display; changed inverters and installed a brand new LCD. Display was also still visible on an external monitor...

I ended up stripping the logicboard of the heatsink+fan, wifi card and battery pack before placing it in my dishwasher (by itself, with NO detergent) at 70 degrees for the full cycle.

This process steam-cleaned the logicboard for me (kinda like they when manufacture the logicboards). I left it overnight to dry; used a hair drier the following day to make doubly sure the logicboard was fully dried.

I refitted the battery pack, fan+heatsink, wifi card and all loose cables.

I then used IsopropoI Alcohol to clean any remaining thermal paste off the heatsink and processors before using nano-diamond thermal paste (PC World) to stick the heatsinks and processors together again (as they were originally).

Having put the case back together and powered up, I now write this to you from a fully functioning Mid 2007 Macbook complete with working screen.

This process even managed to fix my trackpad button and Superdrive, both of which had stopped working over a year ago!!!

Hope this helps...

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