replaced macbook pro logic board, now no screen

Sonhascome

macrumors 6502
Original poster
Feb 18, 2010
272
0
Maryland
I had a lvds port burn out on my logic board, and had to replace it. After putting a new one into the computer and hooking everything back up, I fired it up. . . .startup chime. . . .blank screen. I replaced the lvds cable and tested the screen on another macbook pro, screen was still working. I sent the logic board back and the guy tested it and said everything is working. So my question is why couldn't I get it working when I hooked it up? Is there anything that you should do after installing a new logic board, like resetting the smc or pram? i can't imagined those would have made it display but I don't know. any help would be appreciated. thanks
 

cosmicjoke

macrumors 6502
Oct 3, 2011
484
1
Portland, OR
I had a lvds port burn out on my logic board, and had to replace it. After putting a new one into the computer and hooking everything back up, I fired it up. . . .startup chime. . . .blank screen. I replaced the lvds cable and tested the screen on another macbook pro, screen was still working. I sent the logic board back and the guy tested it and said everything is working. So my question is why couldn't I get it working when I hooked it up? Is there anything that you should do after installing a new logic board, like resetting the smc or pram? i can't imagined those would have made it display but I don't know. any help would be appreciated. thanks
There are a lot of variables when it comes to no video output, and there's really not much you can do other than test each one of them.. often in the PC building spectrum, I've found that incompatible/faulty stick of RAM leads to no video output, but that's just one of many possibilities...
 

Sonhascome

macrumors 6502
Original poster
Feb 18, 2010
272
0
Maryland
just went to the computer shop and they said there is some evidence of burning or overheating and that is probably why it wouldn't come on last night.
 
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