Search found 31 matches
- Sun Feb 18, 2018 9:50 pm
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
Re: TI99/4 (I think) Keyboard (membrane) Rebuild.
https://www.sinclairzxworld.com/viewtopic.php?f=7&t=2712&start=10#p29799 The keyboard map to adapt to ZX81... Just looked it over. Used the same diagram/table .. Not recommending this approach. NOT!!!! But I moved the cap tops over on the bottom row by 1 to the right . [ shift ] ,z,x,c,v,b,n,m, htt...
- Thu Feb 15, 2018 1:04 pm
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
Re: TI99/4 (I think) Keyboard (membrane) Rebuild.
Correct. No Chiclet keys.
There is a Mitsumi # on the pictures.
The keyboard was a surplus item purchase back in '86-87. (cheap)
- Thu Feb 15, 2018 1:01 pm
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
- Tue Feb 06, 2018 2:44 am
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
Re: TI99/4 (I think) Keyboard (membrane) Rebuild.
This is my scan of keyboard pcb & top plastic membrane.
https://www.dropbox.com/s/kw7ebsb3m1fc5 ... 2.jpg?dl=0
https://www.dropbox.com/s/kw7ebsb3m1fc5 ... 2.jpg?dl=0
- Mon Feb 05, 2018 4:59 pm
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
- Mon Feb 05, 2018 4:06 pm
- Forum: Hardware
- Topic: TI99/4a (corrected) Keyboard (membrane) Rebuild.
- Replies: 10
- Views: 7157
TI99/4a (corrected) Keyboard (membrane) Rebuild.
Afternoon reading Dan Moore's post I gave mine a closer look. Boo! It WAS a membrane type. :cry: And it was no longer working with my TS1000. :cry: :cry: Tore it apart. The PCB seamed usable as did the key mechanisms. Experimented with strips of aluminum foil, then went looking for some copper foil ...
- Wed Jan 31, 2018 2:22 pm
- Forum: ZX BASIC
- Topic: Who is up for a 1K BASIC challenge?
- Replies: 6
- Views: 5064
- Wed Jan 31, 2018 3:02 am
- Forum: ZX BASIC
- Topic: Who is up for a 1K BASIC challenge?
- Replies: 6
- Views: 5064
- Wed Jan 24, 2018 10:52 pm
- Forum: ZX BASIC
- Topic: ZX80 4K ROM inverse characters
- Replies: 7
- Views: 5728
Re: ZX80 4K ROM inverse characters
Hi, Yes, it's much easier to produce inversed characters on the Sinclair ZX81 so this is for the ZX80 only. However, if you want to inverse a string from an un-inversed string in ZX81, the principles are about the same (take the character code and add 128 to it). Thanks, Shaun. Thumbs up Shaun.
- Wed Jan 24, 2018 4:35 pm
- Forum: ZX BASIC
- Topic: ZX80 4K ROM inverse characters
- Replies: 7
- Views: 5728
Re: ZX80 4K ROM inverse characters
well, what do you know it does run......... on a zx80!!!!