Search found 158 matches

by tzok
Wed Feb 12, 2020 10:14 am
Forum: CHAT FORUM
Topic: Oscilloscope...
Replies: 9
Views: 573

Re: Oscilloscope...

These HP weren't bad at their times... but today they may need more troubleshooting than computers you want to troubleshoot with them. They use Dallas battery backed up NVRAM modules to store calibration data. Today batteries are good past EOL date, and are non-replaceable. So I'd suggest going into...
by tzok
Tue Feb 11, 2020 10:56 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Gotek / HxC Manager problem
Replies: 31
Views: 1673

Re: Gotek / HxC Manager problem

So it looks more like a problem with RAM, not the floppy... have you tried to run YAART?
by tzok
Mon Feb 10, 2020 10:34 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Gotek / HxC Manager problem
Replies: 31
Views: 1673

Re: Gotek / HxC Manager problem

If you are using a Flash Floppy, then download an image manager supplied with the firmware version together with a right config files. You need to put these files on the root of your flash drive: ff.cfg img.cfg HXCSDFE.CFG AUTOBOOT.HFE You will find all these files in the archive with Flash Floppy f...
by tzok
Mon Feb 03, 2020 6:21 pm
Forum: 8 BIT CORNER
Topic: ZX Spectrum 48K Refurb
Replies: 6
Views: 639

Re: ZX Spectrum 48K Refurb

I've never seen a ZX Spectrum with a blue keyboard panel, why did you choose it ... if you want a better keyboard, why didn't you buy ZX Spectrum+ or TIMEX TC2048? This original ZX Spectrum is famous for its rubber keyboard and I think it should stay that way. Especially if it is about to be a colle...
by tzok
Sun Jan 12, 2020 11:17 am
Forum: HARDWARE DISCUSSIONS
Topic: Anyone seen this drive?
Replies: 8
Views: 1011

Re: Anyone seen this drive?

Yes, the DS0..3 switch is where @czietz showed.

I have two of these:
Image
But don't like them, as they read only 82 tracks.
by tzok
Sun Jan 12, 2020 11:06 am
Forum: HARDWARE DISCUSSIONS
Topic: Keyboard swap
Replies: 5
Views: 717

Re: Keyboard swap

Both ST and STf/e keyboard schematics for comparison: https://obrazki.elektroda.pl/9164169800_1578827160_thumb.jpg https://obrazki.elektroda.pl/9070325100_1578827159_thumb.jpg All ST keyboards were electrically the same (from the ST side), only the ST keyboard had re-routed JOY0/1 signals to the mot...
by tzok
Wed Jan 08, 2020 7:52 pm
Forum: HARDWARE DISCUSSIONS
Topic: Anyone seen this drive?
Replies: 8
Views: 1011

Re: Anyone seen this drive?

The bottom metal bracket is not a part of the drive, possibly under it there are solder-jumpers.

This is a quite common late ST FDD SONY MP-F11W.

Image
by tzok
Mon Dec 30, 2019 4:56 pm
Forum: HARDWARE DISCUSSIONS
Topic: Flash boot blocks ?
Replies: 3
Views: 363

Re: Flash boot blocks ?

This affects only the programming algorithm. When reading they all behave like regular ROMs.
by tzok
Sun Dec 29, 2019 5:31 pm
Forum: HARDWARE ISSUES
Topic: UltraSatan by retrofun.info ?? ver 4 2018
Replies: 4
Views: 681

Re: UltraSatan by retrofun.info ?? ver 4 2018

I can't see your pics, and don't quite get what your problem is. My US (from different vendor), used to clear the card in slot #0 when I was powering off the Atari. The partial solution was to configure cards to be ACSI ID 1 and 2 instead of 0 and 1, but final solution was replacing an ACSI buffer c...
by tzok
Thu Dec 26, 2019 11:06 am
Forum: ROM UPGRADES
Topic: Winbond eeprom
Replies: 3
Views: 365

Re: Winbond eeprom

In most cases you can also use much cheaper Flash memories like 29C010.

Go to advanced search