Loading ...
Sorry, an error occurred while loading the content.

21870Re: [midatlanticretro] Help testing a C128D video issue

Expand Messages
  • B Degnan
    Jul 8 5:50 AM
      What monitor model are you using. The 1802? Does the monitor you're
      using work in 80 col mode with a regular C128? I have a spare 8568
      if you want to buy it from me, make offer.
      Bill

      At 05:58 PM 7/7/2011, you wrote:
      >Hi all,
      >
      >Part time lurker here, so forgive me for jumping in, but this is the
      >first place I figured to look for assistance.
      >
      >I'm trying to trouble-shoot an issue on a Commodore 128D which won't
      >display 80 column video. I've tried both monochrome video thru the
      >9-pin video part, as well as a scan-doubler to convert CGA to VGA,
      >but I get the same basic results, a simple black screen. 40 column
      >mode works fine.
      >
      >The 128D uses a different VDC than the regular 128, so getting a
      >scrapped 128 isn't a real solution.
      >
      >Anyways, the VDC is an 8568, identified as U22, a socketed device
      >under the shielded box directly below the power supply, so access is
      >easy. If someone has a working C128D in 80 column mode (either
      >monochrome or RGB), and is willing to pop it open, I'd like send you
      >my VDC so you can try it and verify either dead or alive.
      >
      >You can contact me off-list. Thanks!
      >
      >
      >
      >
      >------------------------------------
      >
      >Yahoo! Groups Links
      >
      >
      >
    • Show all 5 messages in this topic