Jump to content

The LC III that chimes death with no video.


Recommended Posts

Hi and happy new year /o/

 

So I had this LC III motherboard sitting alone for a while, death chime, original caps. But beside that seems in great condition.

I did a recap and indeed after cleaning, the motherboard looks fine, almost like new.

 

Great! Recapping done nicely, no surprises, except... it's still doing the death chime. Ugh. And I can't get any video, so no error code to read, I've litteraly no idea what's going on here.

 

Here is few things I should check though:

  1. This reversed capacitor thing on the LCIII:
  2. Check rails voltage
  3. Video circuit maybe damaged, must check if there is some signals down here
  4. Death chime happens just after boot chime, so must fail on an early check
  5. ROM: checked and ok. Swapped with known-good ones, same result.

 

Yet another interesting case to solve :scrambled:

Link to post
Share on other sites
  • 1 month later...

My LCIII+ is having this same problem. My 12” LC monitor also died at the same time. Thinking I had a brownout or something. I had forgotten to unplug them after I used it last. The motherboard on mine is all recapped, had been working fine. I get a normal startup chime then the chimes of death. I need to get another monitor to see if I’m outputting video and see if there’s a fault code shown.

 

Have you tried reseating RAM and VRAM? Mine doesn’t do the death chimes if the VRAM is pulled but it also doesn’t boot up.

Link to post
Share on other sites
  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...