My intel iMac Pc was not powering so i opened it up remove the power supply and changed the capacitor this solved the problem for a while later same problem occured fixed it again and coupled it back even with the data display cable tucked in properly the system gives sound on power up but nothing to show on display how do i fix this
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To verify that its the display or a display compontent, plug in an external monitor. If you see something, then its the display, if not, its your logic board or your GPU.
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I did a hard drive upgrade, and at first, my screen was blank, but would show up on my TV, it turns out the cable's lock is VERY sensitive, and you have to plug it in properly, then be careful with the LCD. For some reason, it does not work when I had the torx screws around the LCD in too tight.
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