Search found 1009 matches
- Thu Jan 09, 2020 4:00 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: MONGREL REMAKE H4 COMPETITION
- Replies: 82
- Views: 38025
Re: MONGREL REMAKE H4 COMPETITION
... exxos & Icky - 7 days (Winners) - :twisted: ... ... I am so surprised no one has noticed that @exxos and I have broken one of the rules :) in my last post. Probably two rules. ... 7 days? Started 21 Nov and posted a GB6 pic 4 dec. That's 13 days.... :lol: And exxos hasn't even started yet.....
- Tue Jan 07, 2020 4:01 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: derkom's attempt
- Replies: 203
- Views: 69142
Re: derkom's attempt
Do ram test cycles with yaart maybe? It wasn't plummer flux you used because that can be corrosive on pcb?
- Sat Jan 04, 2020 6:42 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: IngoQs attempt at messing up the H4
- Replies: 58
- Views: 25162
Re: IngoQs attempt at messing up the H4
One wire to many on the buffer bypass for HDD. You need to remove the leftmost wire.
- Sat Jan 04, 2020 6:38 pm
- Forum: HARDWARE DISCUSSIONS
- Topic: Gotek ST Trouble
- Replies: 5
- Views: 3079
Re: Gotek ST Trouble
There are two different controller boards for the SF354. Which do you have? One have a few logic chip on it and the other one it's just a pcb with traces on it (and two relay). The one with logic chips on it won't work out of the box. The other one should work fine with double sided disks. The ribbo...
- Sun Dec 29, 2019 1:23 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
Looks like you got a bit or 2 in the red line somewhere not contacting. You were right about a bit missing. First I checked all my soldering and they seemed fine. So I measured all the stuff on the red side of shifter, DAC and mux. I found that pin 27 (R2) of the shifter didn't have contact with pi...
- Sat Dec 28, 2019 9:47 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
...When will power up be :)? Now! Well, it's working... but I got no floppy. I also got very faint red or missing red in display. Have to look into that tomorrow. No floppy.jpg No red.jpg Audio is working and Blitter is working. Got 4Mb of ram and it's working. HDD/satandisk is working. External po...
- Sat Dec 28, 2019 5:37 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
Thank you! I just held up the connector from the keyboard. Didn't check that at all. I even have a original motherboard beside me. Clumsy.
- Sat Dec 28, 2019 4:42 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
...and the jumpers of course.
- Sat Dec 28, 2019 4:41 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
Mostly done! Time to put in the IC in their sockets.
- Fri Dec 27, 2019 6:38 pm
- Forum: MONGREL H4 USER BUILDS
- Topic: DoG's Hx Mongrel build attempt
- Replies: 41
- Views: 18607
Re: DoG's Hx Mongrel build attempt
I finally got some time to do some work on the board. I think I got most of the small itsy bitsy components soldered in now. I maybe do jumper pins next and then sockets. And ports and fixes of course. I lifted the 3 pins on the DAC. I'm going to leave them unattached to anything and see what the di...