screen comes on and then off
Hi. My Tbolt 27" has been working for a few hours and then a black screen shows. After a few resets the screen comes on and then off, and back again, and again, Now it does not turn on at all. It powers up too, and the USB and speaker work 100%. My local computer shop (Apple accredited - I think!) said that I need a new circuit power supply (backlight), €399+TAX, and they KEEP the existing LCD. Why? Hmmm! I have seen many comments with the same problem but managed to repair at a very low cost orby easily taking the display apart.
It could be:
The power cord;
The all-in-one cable, USB cable, Power cord to MacBook and square-shaped cable which shares the display with the MacBook;
If, with your help, I can manage to fix it, I will go back to the shop and make a complaint. I took a smaller MAC screen a few years back, on/off was broken = €300 +TAX price. I didn't fix and let them keep it. I regret to have done that.
Any help, please...Thank you everyone for the attention and hopeful help.
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