Jump to content

screen controller not displaying

ArcaneImpact
By ArcaneImpact
in Troubleshooting
 Share
Posted

Hey y'all! Long time LTT watcher, just joined up to ask this: 

I'm trying to salvage the LCD panel from a dead 27'' imac. It's an LM270WQ1-SDE3 panel. I purchased the correct controller for it, hooked it up, but experienced some power issues with the first power supply I used. I successfully got it to display, but it kept turning off after 2 or 3 seconds of power. I swapped out the supply and now the power is stable, but it won't display an image. It's perfectly recognized by multiple devices and seems to recognize it's connected (the LED glows red when there's no signal), but no image is displayed. Swapping back to the first power supply yields the same result.


Does anyone have any experience with these and might know where I go from here? I mistakenly bought a similar controller for an LM270WQ1-SDC1 before I got the correct one. Could swapping the inverters or some other parts help get this thing to a functional state?

screen_controller_broke.jpg

Link to comment
https://linustechtips.com/topic/1209222-screen-controller-not-displaying/
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Troubleshooting

×