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  1. I've only ever seen them with EPROMs

    I've only ever seen them with EPROMs
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    Awesome work and research. Yeah I knew it, the B+...

    Awesome work and research. Yeah I knew it, the B+ was virtually 0 volts with that EHT installed, that can’t be good for the power supply either. Connecting a dummy load ( 240v globe ) with the EHT...
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    I don't have the monitor anymore but I still have...

    I don't have the monitor anymore but I still have the original flyback.

    Not sure if it's much use to you.
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    No. Never got mine working. It's virtually...

    No. Never got mine working. It's virtually impossible to find any reliable info on the above Flyback.

    The chassis is Hitatchi. The Flyback was also used in the A2M2056 which is discontinued,...
  5. Open to that possibility. But in hindsight I did...

    Open to that possibility. But in hindsight I did have the exact same issue with my previous IIe enhanced as well.

    In fact I do on some occasions get an IOU error "IOU FLAG ES: 1" but most likely...
  6. So I received the PCB yesterday and swapped over...

    So I received the PCB yesterday and swapped over the IOU and have colour. The colours are so vibrant and alive on my pvm.

    Thankfully the IOU is working but the replacement non tested board ( Apple...
  7. I have working 4264 Micron pulls. If you need any...

    I have working 4264 Micron pulls. If you need any spares for troubleshooting let me know but I wouldn’t recommend using them indefinitely.



    The built in self test is very good. I used it...
  8. That's interesting. Great that you got the other...

    That's interesting. Great that you got the other board working.

    I socketed my IOU a couple of days ago and all was working fine whilst playing The Goonies until the machine totally locked up this...
  9. You could type in a short basic program using...

    You could type in a short basic program using plot.

    Havenít tested it but it should work. Should print a horizontal line across the screen in all 16 colours.

    10 GR
    20 FOR I=0 TO 15
    30 PLOT...
  10. In regards to the IIe, the technical reference...

    In regards to the IIe, the technical reference guide in chapter 7 states that the IOU is responsible for generating the video signals, including vertical blanking. The horizontal signals are derived...
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    I didn’t end up getting the fjc preflashed...

    I didn’t end up getting the fjc preflashed version. Ordered the other before realising. I’ll just download the firmware and flash it myself then send flashjazzcat a donation for his hard work.


    ...
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    I've just placed an order for it. I just reminded...

    I've just placed an order for it. I just reminded myself about how crazy the prices have been for these on eBay recently

    I figured I'm going to need it once I get rid of the 800xl and the 65xe....
  13. Doesnít RGB scart solve that issue on the Master...

    Doesnít RGB scart solve that issue on the Master System as well ? I modded a Mega Drive for a mate to switch between ntsc and pal. Obviously no colour on his CM8833 Philips monitor when switched over...
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    Definitely interested in getting one for my 800...

    Definitely interested in getting one for my 800 however, heís asking 3 x more the original price, so maybe it will be more worthwhile to wait for Incognito 2.
  15. I can only speak for myself here but my LCD TV...

    I can only speak for myself here but my LCD TV recognises the signal as PAL ( and most likely my other monitors as well ). I also forgot to mention that it's also not really locking sync properly...
  16. https://comp.sys.apple2.narkive.com/uyOi7vAj/inter...

    https://comp.sys.apple2.narkive.com/uyOi7vAj/international-ntsc-apple-iie-motherboard

    My understanding is that there needs to be a direct connection between the colour subcarrier of 3.58Mhz and...
  17. The information out there seems to be a little...

    The information out there seems to be a little sketchy.

    I don't know if there even is 50/60hz version, I suspect that info comes from the following two pages
    ...
  18. It may be attributed to the 50hz PAL IOU (...

    It may be attributed to the 50hz PAL IOU ( 344-0022 ).

    I'm going to try the 344-0020 ( 60Hz NTSC IOU ) and see if that solves my problem. I don't have a lot of CRTs to test..
  19. Pretty interesting information which seems to...

    Pretty interesting information which seems to contradict the information already out there.

    http://members.iinet.net.au/~kalandi/apple/AUG/1995/08%20AUG/MEG80Z.html
  20. So I got them today. ECS-143-S-1X are the correct...

    So I got them today. ECS-143-S-1X are the correct ones from digikey as pictured above

    Installed it but still no colour on the PVM and LCD. The LCD thinks the signal is PAL, very strange. IOU is...
  21. I did see one for sale on eBay recently for...

    I did see one for sale on eBay recently for around $90 within the last 2 months.

    Not sure why I can't see it in recently viewed items or completed listings.
  22. They're available from mouser and digikey. ...

    They're available from mouser and digikey.

    ECS-143-S-1 or ECS-143-S-1X. ESR is 25 ohms.

    https://www.digikey.com/products/en?keywords=ECS-143-S-1

    Not sure which to get so I'll get both. (...
  23. Any interesting marking on the package ? ...

    Any interesting marking on the package ?

    Seller does not mention the brand.

    I did try a FOX 14.31818MHz crystal through an NTSC TV and I got no colour a couple of years ago. I have a thought to...
  24. That's awesome. It doesn't look like I'm ever...

    That's awesome. It doesn't look like I'm ever going to get my Apple Color Monitor fixed ( impossible to get a flyback for it, even all the replacements are discontinued ) and I'm going to dispose of...
  25. Apple IIc video expansion is some weird...

    Apple IIc video expansion is some weird proprietary thing. Apple IIs are all composite out.

    I've even tried using my PVM which can handle NTSC ( the NTSC Atari 800 puts out colour fine using this...
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