Commodore Plus/4 Black Screen of DEATH

Ғылым және технология

Kindly sponsored by www.PCBWay.com $5 for 10PCBs. Just a week after building a new power supply for it, my Plus/4 decided it was no longer for this world, and produced the dreaded Black Screen Of Death.
So what's wrong with it? And Can I fix it...?
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Channels mentioned in this video:
8BitRetroRefix: @8BitRetroReFix
Retro Krazy: @RetroKrazy
00:00 - Introduction
00:35 - Initial examination
02:46 - PCB Way
03:16 - Checking the TED
05:06 - Trying a replacement TED
08:17 - 8501 and PLA
09:42 - Try a GAL PLA
10:41 - Another Plus/4!
11:13 - Send the Chips to Steve!
11:41 - Steve’s Report
17:28 - What to Do For a CPU?
18:20 - 6510 CPU Adapter
20:31 - Refitting the working chips
21:58 - Building and fitting the Adapters
29:04 - First Test
30:40 - Diagnostics Test
33:02 - Further Testing

Пікірлер: 12

  • @joelawford5107
    @joelawford51077 ай бұрын

    Great result, well done! 👍

  • @8BitRetroReFix
    @8BitRetroReFix7 ай бұрын

    Great video, Tim ...I didn't realise I had paint on my arm, lol.. I had decorators in that day, lol .... Nice to see another revived 😉

  • @brianbuckley6713
    @brianbuckley67137 ай бұрын

    Bloody good job Tim, it’s great to it running as it should. I was almost ready to get you when I thought you had forgotten to put the thermal paste back on 😂 Nice job mate.

  • @TimsRetroCorner

    @TimsRetroCorner

    7 ай бұрын

    It's bloomin' expensive stuff, considering the entire tube holds less paste than you'd put on a toothbrush!

  • @konturgestalter
    @konturgestalter6 ай бұрын

    Fantastic channel. like your videos a lot

  • 7 ай бұрын

    I have two Plus/4s. The only single reason I don't like them (compared to C16s) too much is the very tight case, which makes adding adapter boards very hard, also it can be a thermal problem to have such a tight case (maybe it also leads for easier death of the chips inside a Plus/4 than a C16) ... I also have some C16s, with memory expansion to 64K, almost the same as a Plus/4, but much comfortable, and bigger cases, also the keyboard feels better somehow, at least in my opinion. But anyway, this is only one reason, I still like my Plus/4s as well.

  • @TimsRetroCorner

    @TimsRetroCorner

    7 ай бұрын

    Don't have a C16...yet. But I think the case design is incredibly boring and unimaginitive - just bung it in a repurposed C64 case & paint it black. The Plus/4 case is a polar opposite AND its keyboard is much nicer imho - less uncomfortable to type on. My fingers always hurt after an hour typing on the C64! But yes I agree, it's really cramped inside the Plus/4. But then I don't think when it was designed, they imagined we be modding it almost 40 years into the future!

  • 7 ай бұрын

    @@TimsRetroCorner I agree about the design (or lack of, and re-using C64/VIC-20 style). I only speak on the practicality side of things, that's all. In my experience at least, chips tend to die sooner inside a Plus/4 than a C16 and what I can imagine is because the thermal issues on a much smaller and tight case. Also the practicality side that I have room in a C16 case to add things like you've described in this video without the need to worry that you don't have room. But I agree, that a Plus/4 case design is unique and thus "better" from an appearance/design point of view. But I guess I am not objective here, since when I was child, before getting my own C64 I was in a "computer camp" where we had a class-room of C16s. So maybe I am more biased over a C16 than I should be ;)

  • @richardblack5710
    @richardblack57107 ай бұрын

    Yes, please show the 6502 board and the increased memory on the other Plus/4. there are a lot more 6502s available than 6510s.

  • @TimsRetroCorner

    @TimsRetroCorner

    7 ай бұрын

    I have one on order. It's called a "6502 Plus 4" board Once it arrives I'll get my other Plus/4 on the bench, and do a comparison.

  • @CaptainCommodore
    @CaptainCommodore7 ай бұрын

    Nice video, love the perseverance with the p4..... what was the demo you ran at the end ?

  • @TimsRetroCorner

    @TimsRetroCorner

    7 ай бұрын

    Thanks :) The demo is called Phosphorizer.

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