tritanium1

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  • June 19, 2018 at 6:07 PM in reply to: GGLabs CGA2RGB – Black Screen #22214
    tritanium1
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      @strygo: I actually thought I posted the update…maybe it didn’t go through.

      In any event, the replacement board from GGLabs did the trick. I believe something may have affected the original in transit.

      Upon connecting the new board, 80 column mode worked right away from my C128 through the OSSC!

      This device also worked for my Tandy 1000HX producing a clear, bright picture from the CGA output.

      In regards to your second question, I would assume 75 ohm output too. Unfortunately, I can’t seem to get to the technical documents online at the moment. When I can, I’ll let you know.

      May 28, 2018 at 4:34 PM in reply to: Apple II VGA Scaler #21893
      tritanium1
      Participant

        It was purchased from A2Heaven.com

        http://www.a2heaven.com/webshop/index.php?rt=product/product&product_id=142

        They are the only manufacturer of this type of device that I’m aware of. And, it is OOS quite often. I watched the site for months until one was available…

        May 24, 2018 at 4:23 PM in reply to: Apple II VGA Scaler #21838
        tritanium1
        Participant

          Hi NoAffinity,

          Thanks for pointing me in the right direction!

          It was indeed a limitation of my really old (720P) Insignia LCD TV…apparently it couldn’t handle 1280X768 res.

          I hooked up to my 4K Sceptre, and no problems. In fact it worked on either pass-thru or line2x.

          Thanks again!

          April 5, 2018 at 12:39 AM in reply to: GGLabs CGA2RGB – Black Screen #20603
          tritanium1
          Participant

            @BuckoA51. That’s what I was thinking. I am lucky enough to have a PVM I could try. Unfortunately, I don’t currently have an appropriate DB9 VGA to BNC cable at my disposal. However, I am working on getting one for testing.


            @Alan242            . It sounds like I have the exact same configuration you’re using. OSSC 1.6 and CGA2RGB rev B01. I purchased a custom case for the little board and am powering it with 5v @ 2.5A. Jumper set to pins 2-3. No difference in display with power connected or disconnected however. In further tests, I did notice the little video amplifier chip (NCS2563) on the CGA2RGB heating up to an alarming degree…too hot to touch in only a few seconds. So maybe this indicates an issue with my board? In light of this, GGLabs has graciously offered to send a replacement CGA2RGB to test. I will post my results once I receive it.

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