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Mark Simonson

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About Mark Simonson

  • Rank
    Space Invader
  • Birthday 12/26/1955

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  • Gender
    Male
  • Location
    Saint Paul, MN
  • Interests
    Graphics, computer "art", fonts, valFORTH, BASIC XL

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  1. Just to follow up, placing a piece of metal around the DVI port isn't as effective as it seemed at first. Sometimes I still get interference. Fortunately, moving the FujiNet further away with an SIO cable does seem to be 100% effective, if not 100% elegant.
  2. I figured out where the WiFi interference is coming from more precisely: It's the area right around the DVI port, where the cable is plugged in. I enlarged the hole so that the cable can be more fully inserted into the port, and that helped a little. However, if I place a piece of metal above the connection, it almost completely eliminates the interference. (See photos.) I think if I make some sort of metal cowl to shield the DVI port, it should fix the issue.
  3. Interestingly, moving the DVI cable to the left side barely helped. I did a little experiment and placed the 800XL's RF shield (which no longer fits inside the machine) over the DVI to HDMI cable to see if it would block the interference, and it did well enough to mount disk images and so on over WiFi. It hesitates sometimes, like it's having trouble connecting, but mostly works. This isn't really a solution, but it does confirm that the cable is the problem. I'm not sure now what can be done for this, as there is no place else to put the DVI out port. Thinking that maybe the shielding on the cable is defective, I've sent for a different one. I guess there is always @SS's suggestion about moving the FujiNet further away. EDIT: I tried it and it does work well that way, even if it looks weird. So, thanks for that! At least I have a workaround for now.
  4. I've decided to make a second hole anyway to keep everything neat and tidy, with the FujiNet snug up against the back. I've already successfully removed the unneeded RF modulator to make room for it. I should have done it this way in the first place, but I thought I could save some time by putting it on the right. There's probably a way to hide the first hole. Maybe a sticker or something. 🙂 ( @flashjazzcat 's videos have been a big help, both for showing how to cut the hole and removing the RF modulator.)
  5. Not exactly on topic, but maybe relevant... I just installed a Sofia video upgrade in my 800XL and discovered that it interferes with FujiNet wireless connectivity. I mounted the DVI connector above the expansion port as this was the easiest spot to put it. The ribbon cable is long enough, which suggests that this might have been an intended location. However, when I plug in a DVI to HDMI cable, I can't load or boot any disks from the internet or my local TNFS server successfully. As soon as I unplug the DVI to HDMI cable, it works again. This suggests that some kind of WiFi interference is coming from the cable. The Sofia components alone, when the cable is not connected, don't seem to cause the problem. It looks like I'll have to relocate the DVI port further away from the FujiNet. When I was testing the Sofia, before making a hole and mounting the connector above the expansion port, I ran the ribbon cable straight back out of the machine, just above the RF modulator. I had no interference issues with the DVI to HDMI cable when using it that way. So I believe if I relocate the DVI port somewhere on the left side of the 800XL, it should eliminate the problem. Too bad about the unsightly hole that will remain above the expansion port.
  6. I wonder if this is the same Forth system that Ed Rotberg used for the Rotberg Synthesizer, which was used for the famous Disco Dirge.
  7. It was on the first post in this topic. Awesome--it works now! Thanks for the link, Thom!
  8. I just received my FujiNet device today. I'd like to set up a local (private) tnfs server on my Mac to use with it. I downloaded one from http://spectrum.alioth.net/doc/index.php/TNFS_server and got it installed and running, pointed to a folder on my system. But when I try to access it as a host on the FujiNet, I get "ERROR MOUNTING HOST SLOTS". I've had no luck so far finding information on how to get this working on a Mac, other than the read me file accompanying the tnfsd daemon. Has anyone been able to get a tnfs server working on a Mac with FujiNet?
  9. Thanks for the advice, although I don't think I'll attempt to reflow any solder. I've barely ever done any soldering in my life and I'd likely make it even worse. It's starting to look like fixing it myself is more than I can handle. No doubt, I could probably learn, but at my age, there are other things I'd rather do with my time. However, I know there is still an active Atari group in my area (S.P.A.C.E.) so maybe I'll contact them and see if there's someone local who could look at it and maybe repair it. In the mean time, I think I'm just going to buy another 800XL so I can get back to having fun.
  10. FWIW, it seems weird that would be working every day for the last month (last time I used it before that was three or four years ago) and then suddenly fail today if it was a bent pin or something. I didn't see any corrosion or bent pins or dirt anywhere when I pulled it out earlier this evening. In fact, this is the first time the POKEY has been pulled out since it was new. Further, I never even opened the machine until about two weeks ago since I bought it in 1985. It's always been stored indoors in dry, smoke-free areas. Barely any yellowing on the plastic. The only thing I can think of is that running it every day for the last month (after being dormant for years) pushed some aging component past the failure point. Then there's that notorious power brick. Still, thanks for the suggestion. I'll take another look at the socket to make sure.
  11. It looks like POKEY chips are somewhat available, and I'd be willing to buy one, but I'm wondering if there is any diagnostic program that can tell if the POKEY chip is still working? I'd hate to order one only to find out that it's not the problem.
  12. Most of the larger chips are socketed, except for the PIA and the RAM. Thanks for the suggestion. I'll give that a try. Edit: I pulled out POKEY and reseated it. SIO still non-functional.
  13. The USB power cable I ordered is from The Brewing Co. How common is it to get 800XLs with socketed chips? Are they usually socketed or usually not? I'm wondering because I recently ordered a Sophia video upgrade (also from The Brewing Co.). I wouldn't have done so if the GTIA on my 800XL wasn't socketed. If I decide to replace the whole machine, I'd want to make sure to get one with a socketed GTIA at least so I can install the Sophia.
  14. The SDrive-Max is getting power externally via USB, not the SIO port. Most of the big chips in my 800XL are socketed, but not the PIA unfortunately. I would not attempt to replace this myself, as it's way beyond my skills. I indeed have the "dreaded 'ingot'" power supply. As I mentioned, it shows exactly 5.0v when I checked it with my volt meter, but maybe that's not always the case? In any case, I ordered a new power supply cable that connects to a USB source, as I have heard these old power supplies can be a problem. I suppose the easiest (if not cheapest) fix is to buy another 800XL off eBay. It bums me out that my original one might be borked, possibly from the old power supply. It's always been a champ until today. And just when I was getting back into using it and doing some really cool stuff.
  15. I don't know if this is useful, but when the SDrive-Max is connected, the little status window prints "SIO:CMD Timeout" whenever I switch off the Atari.
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