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ultrasteve

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Posts posted by ultrasteve

  2. Posted

    @Funkyspectrum - the link in the post two above yours (the last from Ethaniel) still works.

     

    Happy new year everyone.

    Sorry to dig this up...

    I updated the compilation based on v10-v11 of RomHunters sets.

    Not many things changed.

    Mostly NTSC prototype additions as you can see in the txt.

    Let me know if anything needs correction.

     

    Remember I have no automated tools.

    This is mostly done in my free time manually...

  6. Posted

    Thanks for all the tips. Don't really want to go for the alternative solution (although it is excellent) as I like the purity of the stock setup :)

     

    Going to send my original to flashjazzcat for him to have a look at it for me.

  10. Posted

    Hi all.

     

    I recently bought an XEGS from someone on eBay. The system works, and so does the Light Gun (Bug Hunt played perfectly well) BUT the keyboard doesn't. I've swapped it out for a known good keyboard from my 65XE and still no joy. When both of these keyboards are connected to the XEGS, ONLY the Break key works. If I put the faulty XEGS keyboard into my 65XE only some of the keys work (that, I guess, is almost certainly a problem with the Mylar?).

     

    So I think this problem is two-fold: 1) The Mylar needs replacing, and 2) There is something wrong with either the XEGS, or the XEGS Keyboard Sub PCB. I'm leaning towards the latter, but I don't know enough about the guts of an XEGS, or about electronics. Using a multimeter I can tell there are no breaks in the traces on the sub PCB. Could it be that one of the 4051s is dead? If it was JUST the mylar I'd assume it wouldn't work at all once placed in the 65XE, same as when connected to the XEGS, so that's what makes me think there's something else at work. Is there anything in the XEGS itself that could cause this behaviour?

     

    Sorry, I'm a bit of a novice at this sort of stuff. Not afraid to try stuff, but need some pointers please? By the way, I'm in the UK, so shipping costs will prevent me just ordering parts to keep trying to some extent!

  19. Posted

    I just finished building a prototype for an acrylic case. It is 7 layers of 3mm acrylic "glued" together. The front is fixed. The back is held in place with clips at the top and screws toward the bottom. It is a bit rough around the edges as everything was hand cut and filed. The logo was transferred to the acrylic with the cutting template but got a bit damaged during assembly. It is a few mm longer than a stock shell, thicker at the top.

     

    The fit in an 800xl was a bit more snug than factory shells but not excessively tight. Seemed to be shifted a bit toward the front. I've got a few design changes to make. The back will need some more clearance for the pin headers to remain installed and I clipped off some of the SD card plastic that extended past the top of the PCB.

     

    So far looks like a viable option for a DIY shell. Getting the parts laser cut and engraved should be comparable in price to a 3d printed shell. The laser cut acrylic build would still require some pretty tedious assembly. The internal layout could be changed to support other PCB designs as well for other projects.

     

    attachicon.giffront..jpg

     

    attachicon.gifback empty.jpg

     

    attachicon.giffont with pcb.jpg

     

    attachicon.gifinstalled.jpg

     

    I would totally buy one of these! Very nice work.

  23. Posted

    Thanks to Thorsten, I've ordered one with a UK plug from rock-gear.de.

     

    Also, I found out why it is so difficult to find one in the UK now. It's because it's essentially illegal! Single output AC/AC power supplies are now subject to energy efficiency guidelines. A loophole exists whereby if they are dual output then they are allowed. A secondary auxiliary output offered by way of a small jack that will almost certainly not be used(!) needs to be present and agreed by the customer. This obviously bumps costs up. This is why Maplin have stopped selling the 9V N65DL. They sell a 12V (which has an 18V aux) because it was a more popular product than the 9V which they don't want to order in bulk at the higher price that it would need to be if it was dual output.

     

    These are global regulations, too, so whilst some sources will obviously still exist ;) it is going to become harder to find them on sale, particularly from February when the new guidelines are enforced, so probably worth buying one now if you need one!

     

    For those interested, this site gives an introductory overview to the regulations along with some grabs of the data. And this site is the data source.

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