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So since ive owned my xk8 my display has been like this. Occasionally it get more readable for a day or so, but this is how it looks. Ive always figured the lcd itself was bad, but curious if there are any fixes out there. I did search, but only really see about the backlights.
It looks like it could be the wiring loom is pressed up to the backlight. You'll have to remove the HVAC panel just as if you were changing the bulbs, and then open up the back panel of it. Last time I replaced my bulbs, you have to take off this back panel anyhow. I don't think LCDs get screen burn in, but without closer inspection, it's hard to say though.
I pulled it today and opened it up. The display stayed the same. I remembered i had a spare one in the spares i was given when i bought the car. Unfortunately when i picked it up and looked at it, it was obvious that it had been manhandled and scavenged. So I found one for pretty cheap on ebay from a known recycler so i bought it. Of course right after I paid i found one for cheaper. Lol oh well
Last edited by Timeisrelative; Jan 27, 2023 at 09:22 PM.
Well crap. I knew i should've aired on the side of caution. Lol. My old ones backlights worked fine and i thought about swapping them out, but didn't. Of course I went out tonight and sure enough, this ones are burnt out. Drrrrr. Oh well, looks like I'll order led upgrades and tear it apart again. Smh oh well
This is a great fix, nice job - probably the kind of post that someone someday will use to fix same problem. In light of that, here's a data point:
In 2021 I found the same item pictured on ebay for $25.
FWIW turned out not to be the reason my display changed temperature every on off cycle - that was fixed with a replacement AC control module. $35 on ebay.
1997 XK8 HVAC LCD question
