Problem after LCD replacement

jamston

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I have a Tosh Satellite in for a smashed screen replacement. I'm pretty sure before I ordered the screen I turned it on and saw light and leaky LCD liquid. Now I have replaced it with a new one, reassembled and there is no display, no dim light, nothing. I replaced the cable and still nothing. It is doing the same with the old cracked screen and the new one. Tried the old and the new cable. Tried it on an external monitor and its fine, so its not the graphics chip. Tried an ATX reset, tried removing the bios battery. Nothing went 'wrong' during the process, it was as simple as the many many other screens I have replaced. Any ideas anyone?
 
Could be an incompatible screen. Had a few like that myself.

Is it exactly the same model of screen, same f/w version, etc?
 
No matching numbers on the back of the screens, but the seller assures me it is compatible with the model I am working on. Satellite C660D-1C6. The original one is an LG LP156WH4 and the replacement is an AU Optronics, i think, B156XTN02.2

The thing that worries me is the old screen doesn't even light up any more and I am 90% certain I switched it on and saw it do that before I ordered the replacement.
 
Ok, did you remove the battery before replacing the screen? If not you may have blown a fuse.

^
This seems like a good explanation if everything is working but the screen and you were disconnecting and connecting components with power to the board. I've had incompatable screens before that would not power up or not show and image. But when I would plug the old broken one in it would, since yours does not I think this points towards the board....
 
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Pretty sure I did remove the battery, I normally do remove all power before doing repairs. I can't be 100% as a screen replacement is such a normal easy task I wasn't making note of much. What fuse would have potentially blown?
 
I did damage a board once by accident while doing a screen replacement. This is how it went, I let the customer know what happened and told them I could replace the board and the total cost would be the same, I would only charge them for the screen replacment. They were fine with this and I ate the motherboard cost, it ended up costing me money but the customer was still happy.
 
Hmmm so it wouldn't be a replaceable part, because I cant find a motherboard for it at all even to price up.
 
If it is a fuse it can be replaced, you would first need to find and test the fuse and if blown, de-solder and replace.

Having never done this myself, I'll leave the details to someone else.

Good luck
 
CLC:
Havent tried a bios update, but will. Its probably a long shot though. Its a Toshiba Satellite C660D-1C6

Wavey
I'm guessing thats a long slow process with a multimeter ... not done that kind of thing myself before either, but my brother in law is an electronics engineer. He would probably be able to help if it came to it.
 
There is a slight chance that the new screen is not compatible, like another poster said before, and that the only reason that the old lcd is not lighting up now is that during uninstallation the old screen being moved or bent took it out the rest of the way. Maybe try another screen or even from another vendor so that the part number is identical.
 
There is a slight chance that the new screen is not compatible, like another poster said before, and that the only reason that the old lcd is not lighting up now is that during uninstallation the old screen being moved or bent took it out the rest of the way. Maybe try another screen or even from another vendor so that the part number is identical.

This could be possible. Also I was checking for motherboards in the UK I found quite a few. If you happen to have this laptop apart just search ebay for "Toshiba Satellite C660 Motherboard" then check the numbers on the board to see if they match. It doesn't necessarily have to be the exact model number on the laptop to be the same board.
 
Cheers CLC you're a star. Will try a bios update first then get the mobo out and see if any of the numbers match. Have also contacted the vendor of the LCD, so will see what they say.

I don't come round here much any more, because to be honest, its often not a very friendly or welcoming place. Thanks for taking the time to reply constructively everyone, I really appreciate it. :)
 
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