Laptop Screens and Inverters question

oreilly1979 · 16-02-2013 9:28pm #1

Hi Folks,

Just a quick question & thanks in advance if anyone has the answer...

- I had put a screen in a laptop with the wrong weaker inverter. It worked fine but the screen wasn't bright enough.
- I then took the screen out and put it into the laptop that it came from with its correct inverter. However the screen no longer functioned correctly and was simply completely white!..

I was swapping around parts to get a project off the ground and seem to have done permanent damage..

So would anyone have any idea if thats it - is that screen now feck'd!

oreilly1979 · 20-02-2013 3:13pm

first and last bump would anyone know which direction to point me in - even a vague pointer!..

BostonB · 20-02-2013 4:52pm

You might be better asking on a specialised notebook forum.

oreilly1979 · 20-02-2013 8:35pm

Thanks for that BostonB - thats what i will do now!..

amallon · 20-02-2013 9:29pm

If the ribbon isn't connected properly you can get the white screen.

oreilly1979 · 20-02-2013 9:42pm

right - the ribbon is tricky to connect alright.. thanks for that

20-02-2013 9:44pm

It's unlikely that a dodgy inverter would cause a white screen. The CCFL and LVDS connections are separate circuits so one doesn't interact with the other. I'd second checking the ribbon because this is the more likely cause. Connecting the CCFL connector to the inverter without connecting the LVDS cable correctly (or at all) will certainly produce a white screen.

oreilly1979 · 21-02-2013 12:04pm

I'm in the middle of fitting the screen right now. I've tried it several times and every time its still white! I'm starting to think that a pin on the screen (female ribbon socket) is not making a connection - or I suppose it could be a connection somewhere else too. I've tried to make sure that each pin in is protruding by gently bending each up with a sowing needle... almost outta ideas now...

21-02-2013 12:08pm

Might be worth checking the other end where it goes into the motherboard.

oreilly1979 · 21-02-2013 4:27pm

Thanks Karsini I checked that out too after reading your post while i was at it - but no luck...

Will park this one at this stage - thank you everyone for your help on it..

There was one thing that I did notice - while the screen was fairly white there was slight vertical streaks down it too, not sure if this is a sign that it might be done for, as I said they weren't very visable..

Laptop Screens and Inverters question

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