Search found 2182 matches
- Sat Mar 02, 2024 12:59 pm
- Forum: SALES
- Topic: Filesixty keyboard £15 plus p&p
- Replies: 8
- Views: 2600
Filesixty keyboard £15 plus p&p
I have a FileSixty keyboard for sale for £15 plus p&p (UK preferable due to the pain that it now is sending stuff abroad). I have given this a gentle wipe over and pressed all of the keys on a zeddy and all worked. Not sure what glue you need to use to stick this on! If interested please post on her...
- Sat Mar 02, 2024 12:11 am
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
A cell from a de-capped 2c184 ULA, the second picture is a cell with the overlay from Sinclair. I've had one or two that partially failed, membrane keyboard presses causing a crash but with a Memotech plugged in all ok. Replacement of the ULA cured it so not a board fault. Great photos! I have ‘The...
- Sat Mar 02, 2024 12:07 am
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
Close but not quite enough letters! It isMoggy wrote: ↑Fri Mar 01, 2024 11:19 pm10 PRINT "HELLO WORLD"Lardo Boffin wrote: ↑Fri Mar 01, 2024 8:58 pm Guess the program!
IMG_5789.jpeg
Running through the ChromaSCART.
20 GOTO 10
10 PRINT “HELLO SINCLAIR ZX WORLD”
- Sat Mar 02, 2024 12:06 am
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
The ULA is, if I understand correctly, basically a collection of logic gates in one chip, so it's possible for it to partially fail without completely breaking down... if that makes sense. That does make sense - I have some ‘danger ULAs’ that are part failed that I keep for test purposes. It doesn’...
- Fri Mar 01, 2024 10:32 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
I put a different ULA in and it works perfectly. Put the old one in and back to Venusian.
Any ideas how a ULA could do this? Given that it pretty much works fine when a RAM pack / Spand is plugged in?
Any ideas how a ULA could do this? Given that it pretty much works fine when a RAM pack / Spand is plugged in?
- Fri Mar 01, 2024 8:58 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
Guess the program!
Running through the ChromaSCART.
Running through the ChromaSCART.
- Fri Mar 01, 2024 8:55 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
The ROM is really quite hot to the touch.
- Fri Mar 01, 2024 8:48 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
In the spirit of quick checks I have plugged in my ChromaSCART. With the onboard RAM switched off I get the display issue. With the onboard RAM switched on I still get the display issue. I was expecting it to work properly with the RAM on as this is in effect the same situation as having a RAM pack ...
- Fri Mar 01, 2024 8:45 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
I recall, along time ago, that I had a similar problem and replacing the voltage regulator fixed the problem. I got this idea from a forum posting but I can't find it. Not being a hardware guy I have no idea why the voltage regulator would garble the display, but replacing it worked for me. Regards...
- Fri Mar 01, 2024 8:38 pm
- Forum: Hardware
- Topic: Zeddy displaying wrong characters on screen
- Replies: 22
- Views: 2756
Re: Zeddy displaying wrong characters on screen
It arrived like this yesterday. Sold as untested (as usual).
I haven’t had time to get technical yet - just a few minutes to try some high level stuff at lunch time.
Hopefully when the kids are in bed…
I haven’t had time to get technical yet - just a few minutes to try some high level stuff at lunch time.
Hopefully when the kids are in bed…