Search found 77 matches
- Tue May 12, 2020 11:07 am
- Forum: Development
- Topic: New ZX80 cases
- Replies: 28
- Views: 26722
Re: New ZX80 cases
I am interested and will take two at about $60 - $70 each.
- Tue Dec 10, 2019 8:40 pm
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
- Tue Dec 10, 2019 10:59 am
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
Re: ZX80 no "K" prompt
C11 was missing! I forgot to put in one tiny 47pF capacitor. I'm such an idiot!
It gives a "K" prompt now. Thanks, everybody for trying to help.
It gives a "K" prompt now. Thanks, everybody for trying to help.
- Mon Dec 09, 2019 3:47 pm
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
Re: ZX80 no "K" prompt
I plugged in a known working RAM pack (which disables onboard RAM) and also swapped in a known working CPU to no avail.
- Mon Dec 09, 2019 3:31 pm
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
Re: ZX80 no "K" prompt
http://www.myprius.co.za/zx80error.zip
Sorry for the ZIP file, but I wanted to get as high rez as possible. Two photos of the early build snuck in.
Thank you for trying to help.
Sorry for the ZIP file, but I wanted to get as high rez as possible. Two photos of the early build snuck in.
Thank you for trying to help.
- Mon Dec 09, 2019 3:06 pm
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
Re: ZX80 no "K" prompt
I'll upload a picture, but there's not much to see. It looks EXACTLY like it does when the K is present (along with all the normal background image artefacts), there's just no "K".
- Mon Dec 09, 2019 1:45 pm
- Forum: Hardware
- Topic: ZX80 no "K" prompt
- Replies: 12
- Views: 5197
ZX80 no "K" prompt
I was hoping someone could assist me. I built a ZX80 kit which follows the original 1980 track layout. The machine produces a raster complete with little distortions every few pixels and a little kink at the bottom. Exactly as my other working board does, except the "K" prompt is missing. I have tes...
- Sun Nov 24, 2019 9:22 am
- Forum: Hardware
- Topic: How to clean a tape signal !
- Replies: 1
- Views: 1262
Re: How to clean a tape signal !
Impressive!
- Sun Nov 24, 2019 9:19 am
- Forum: Hardware
- Topic: ZX80 to HDMI
- Replies: 0
- Views: 3273
ZX80 to HDMI
I have a ZX80 built from a kit along with a back porch generator. The image is beautiful on my Sony CRT monitor and SAMSUNG 60inch plasma TV. I want a smaller monitor to work on though. Can anybody recommend an AV to HDMI converter that works with the oddball ZX80 video timing? It should also mainta...
- Sun Oct 20, 2019 4:03 pm
- Forum: SALES
- Topic: QL books for sale...or FREE
- Replies: 4
- Views: 10419
Re: QL books for sale...or FREE
Thank you for the tip.