Chosen Solution
My PB 12" 1,5GHz were running to hot last Summer. After rebooting, the Display stays bright white and shows nothing at all. But an external Display works fine!? curious! So I thought that maybe the Display is causing the Problem. So I built in a new one (LCD only)….(some hours later)….there is still the same Problem: Display is white only….. ….so what is the Problem with my Machine? Which part could be the Problem? Thanks for Helping me and Happy X-Mas LG Softseeker EDIT: @mayer Model No.: A1104 Serial No.: XXXXXXXXRJ4 I tried the thing with the Flashlight but couldn´t see the desktop anyway. PS: I have changed only the LCD, no cabbles or inverter….. THX EDIT 1: Now I´ve exchanged the LCD-Cable…..nothing happens, Display still white. -So now the inverter causes my LCD problem for sure? I don´t want to buy/built in this Part just to keep the same problem…. EDIT 2: Here a little question/thought of mine: (LCD INVERTER)! A good Friend told me that the inverter regulates the Backlight of the LCD-Panel only. My LCD is shining bright white but I can´t read or see anything on it. I´m able to regulate the brigthness, from white to dark. Because this works fine, I can´t believe that this part (LCD Inverter) is the curse of my Problem………does this Part anything else than controll the LCD brightness? Someone can tell me for sure? ::::: (MAYER?) :::::: It took 6 hours and 80 Phillips Screws to exchange the LCD-Cable and the inverterjob will take too……. Is it conceivable that the internal GPU output won´t work while the external Display doing his job correctly? Logicboard (GPU) RIP? Or is this thought technical impossible? PLZ PLZ HELP, THX FOR TRYING I want back my mac(k) remnantlol
Since it works with an external, the problem is isolated to the display area. That would be the display data cable, LCD and the inverter. We need to know your exact model to direct you to the correct parts. Please give the last three letters of your serial number. Shine a flashlight at an angle on the screen to see if you can see the desktop and let us know the results. Thanks
Hi people new here. I too have the same or similar problem. I inherited this 2001 Mac Powerbook G4 M8407 with broken hinges initially. I took it apart to remove the display and hopefully consider replacing hinges. After the fact I was going to purchase used hinges and replace them, but almost to costly when I got a complete used for parts unit. I was able to get the original unit working with the display screen removed using external monitor. I have subsequently installed used display screen complete with hinges and now find that the same thing people are describing here happening to me. I can get the laptop to work using external monitor but only have white screen display on OEM display screen, I can however control the brightness, so not sure what the logic board or inverter looks like or where it is? Hopefully someone else can help as well. Thanks, Ron
Is it possible to replace the display data cable without damaging the display screen as in the case of attempting to remove broken hinges on an M8407 model? I see what the inverter looks like and now know where it’s located so I’ll check out the connection there also. I assumed the for parts display screen would work as the seller indicate is was working before it wouldn’t bot up?
