Search found 106 matches
- Mon May 20, 2024 3:59 pm
- Forum: Hardware
- Topic: Problem after installing minerva
- Replies: 7
- Views: 159
Re: Problem after installing minerva
Hello, Follow the advice from Martin, I had a similar issue when I replace my CPU. Proved to be the logic circuitry so upload photos. Could be a bad soldering joint underneath the pcb. I’m not sure if you will get this behaviour with the jumper on the Minerva pcb wrong but make sure you have it set ...
- Mon May 20, 2024 12:21 pm
- Forum: Hardware
- Topic: Problem after installing minerva
- Replies: 7
- Views: 159
Re: Problem after installing minerva
Did it boot normally before you inserted Minerva? If so I would go back and test with original ROM.
Have you bought the Minerva or built your own?
Have you bought the Minerva or built your own?
- Thu May 16, 2024 5:09 pm
- Forum: The Off-Topic Section
- Topic: Z88 power supply
- Replies: 13
- Views: 360
Re: Z88 power supply
Hi,
To be sure not to draw power from the batteries I have set the voltage to 7v.
If anyone planning to upgrade RAM/Flash then I recommend to follow the instruction where you don't have to cut any tracks.
/Chris
To be sure not to draw power from the batteries I have set the voltage to 7v.
If anyone planning to upgrade RAM/Flash then I recommend to follow the instruction where you don't have to cut any tracks.
/Chris
- Wed May 01, 2024 7:02 pm
- Forum: Hardware
- Topic: CST Ram Plus eproms - CST QDisc v4 issue
- Replies: 20
- Views: 1081
Re: CST Ram Plus eproms - CST QDisc v4 issue
Hi
No real help but:
When you programmed the 27128 did you program in the correct bank ?
Are you using Minerva, don't know if they can co-exist
No real help but:
When you programmed the 27128 did you program in the correct bank ?
Are you using Minerva, don't know if they can co-exist
- Sun Apr 28, 2024 12:55 pm
- Forum: Hardware
- Topic: QL Test ROM
- Replies: 4
- Views: 509
Re: QL Test ROM
Hi,
Sorry I misunderstood your question, I have tried most of them and all of them need a ROM.
apart from Minerva RAM test I di nit know of any dedicated test ROM you can boot from.
Sorry I misunderstood your question, I have tried most of them and all of them need a ROM.
apart from Minerva RAM test I di nit know of any dedicated test ROM you can boot from.
- Sat Apr 27, 2024 6:35 am
- Forum: Hardware
- Topic: QL Test ROM
- Replies: 4
- Views: 509
Re: QL Test ROM
Hi, You mean the one from Thorn?
Urs has them in his repository
https://www.sinclairql.net/downloads/TH ... s-SQPP.zip
Urs has them in his repository
https://www.sinclairql.net/downloads/TH ... s-SQPP.zip
- Wed Apr 24, 2024 8:13 pm
- Forum: Hardware
- Topic: FPGA replacment for the ZX8301 ULA and more
- Replies: 267
- Views: 105423
Re: FPGA replacment for the ZX8301 ULA and more
Leon, what an achievement, really great!!
- Fri Apr 19, 2024 6:02 am
- Forum: Hardware
- Topic: Testing new pinch rollers solution...
- Replies: 13
- Views: 2546
Re: Testing new pinch rollers solution...
Hi,
I can really recommend these rollers, smoother, quieter plus it seems to be more stable readings!
Well Done J
I can really recommend these rollers, smoother, quieter plus it seems to be more stable readings!
Well Done J
- Tue Apr 09, 2024 5:44 am
- Forum: The Welcome Area
- Topic: Old user stepping back
- Replies: 4
- Views: 969
Re: Old user stepping back
Welcome to a great forum!
- Sun Apr 07, 2024 7:07 pm
- Forum: Hardware
- Topic: FPGA replacment for the ZX8301 ULA and more
- Replies: 267
- Views: 105423
Re: FPGA replacment for the ZX8301 ULA and more
Hi
Leon, great work as always.
I haven't all the posts but could it be possible to use your PCB and design an adapter board with the socket for CPU and 8301 routed to a DIN41612, this instead of having to reroute the PCB?
Leon, great work as always.
I haven't all the posts but could it be possible to use your PCB and design an adapter board with the socket for CPU and 8301 routed to a DIN41612, this instead of having to reroute the PCB?