The Danish Hardware Upgrades and Danish Group ROM

Avatar de Usuario
Womble
Mensajes: 75
Registrado: 19 Nov 2020 18:59
Agradecido : 15 veces
Agradecimiento recibido: 77 veces

The Danish Hardware Upgrades and Danish Group ROM

Mensajepor Womble » 30 Nov 2020 01:41

I have the go ahead from Frank to post the Danish upgrade documentation, Frank says he is working on an English translation among many other exciting things.

here are just a few pages to give you an idea what is in this treasure trove...

lynx64kGreenBank.jpg
lynx64kGreenBank.jpg (64.93 KiB) Visto 243 veces


lynx64kGB2.jpg
lynx64kGB2.jpg (138.14 KiB) Visto 243 veces


Lynx6MHzupgrade.jpg
Lynx6MHzupgrade.jpg (101.17 KiB) Visto 243 veces


LynxVideo80ColModsmall.jpg
LynxVideo80ColModsmall.jpg (136.71 KiB) Visto 243 veces



http://www.retrogubbins.co.uk/downloads ... grade-docs

20MB download

jltursan
Mensajes: 3275
Registrado: 20 Sep 2011 13:59
Agradecido : 311 veces
Agradecimiento recibido: 861 veces

Re: The Danish Hardware Upgrades and Danish Group ROM

Mensajepor jltursan » 30 Nov 2020 18:04

We need urgently to translate these Danish docs (the handwriting also doesn't helps)... -shock

frankras
Mensajes: 2
Registrado: 13 Dic 2020 21:26
Agradecimiento recibido: 8 veces

Re: The Danish Hardware Upgrades and Danish Group ROM

Mensajepor frankras » 13 Dic 2020 22:01

On the way - maybe before Christmas :-)

/Frank

jltursan
Mensajes: 3275
Registrado: 20 Sep 2011 13:59
Agradecido : 311 veces
Agradecimiento recibido: 861 veces

Re: The Danish Hardware Upgrades and Danish Group ROM

Mensajepor jltursan » 14 Dic 2020 11:06

I've "deciphered" the 6Mhz mod and I'm near to try it. Seems to need only the following steps:

1) Replace original Z80 with a faster version
2) Isolate IC9 - pin 13
3) Wire IC9 - pin 13 with IC19 - pin 6
4) Isolate IC68 - pin 6
5) Wire IC68 - pin 6 with IC19 - pin 5

Note: The drawing doesn't shows any modification, it's the original Lynx clock schema.

The mod is something like this:

6Mhz.jpg
6Mhz.jpg (85.98 KiB) Visto 69 veces

Is the above correct?, it has been ever tested?. Although it doesn't looks a harmful modification, I don't want to ultimately risk my Lynx... -nb


Volver a “Camputers Lynx”

¿Quién está conectado?

Usuarios navegando por este Foro: No hay usuarios registrados visitando el Foro y 1 invitado