Search found 46 matches

by QLObi
Thu Oct 30, 2014 12:30 pm
Forum: Hardware
Topic: GBS-8220 RGB TO VGA Converter
Replies: 91
Views: 100080

Re: GBS-8220 RGB TO VGA Converter

Latest news on GBS-8220. Beside the resistor (1k to 2k) in seriell to Csync it's also important to use shielded wires for RGB and normal wires for the sync signal. Otherwise you might encounter a light disturbance on showing characters on the screen. The sync signal might work also with a shielded w...
by QLObi
Thu Oct 30, 2014 10:02 am
Forum: Hardware
Topic: JS ROM creation
Replies: 16
Views: 11080

Re: JS ROM creation

Hallo Stefan,
das ist im deutschen Forum aber auch schon veröffentlicht worden.

Detlef
by QLObi
Thu Oct 30, 2014 9:56 am
Forum: Software & Programming
Topic: Q-emulator + SuperForth from Digital Precision = error
Replies: 23
Views: 11713

Re: Q-emulator + SuperForth from Digital Precision = error

Hi Tobias,
i mounted Superforth to my q-emu and get no error messages. It was already unpacked with q-emu to a Windows7 folder. I also tried Windows XP -> no problems. I hadn't tried the ZIP file direct.
The Q-emu is on JS-rom with TKII and had 640K ram.

Detlef
by QLObi
Wed Jun 25, 2014 8:04 pm
Forum: Hardware
Topic: Trump Card not recognised
Replies: 7
Views: 4061

Re: Trump Card not recognised

RWAP wrote:I think it's the DIN connector on that particular QL :)
No, it was the connector on the Trump Card. The connector's blades were worn out, so depending of the position of the QL side pins, there was sometimes connection and somethimes not.

Detlef
by QLObi
Wed Jun 25, 2014 12:21 pm
Forum: Hardware
Topic: Trump Card not recognised
Replies: 7
Views: 4061

Re: Trump Card not recognised

Hi Rich,
Had the same problem on my Trump card. It worked on some QL, but not for all.
The problem was the worn out DIN connector. After replace it was fine on all tested QLs.
The only problem is you need a lot of experience to replace it.


Detlef
by QLObi
Fri May 02, 2014 10:04 am
Forum: Hardware
Topic: QIMI Working!
Replies: 16
Views: 8790

Re: QIMI Working!

Hi Phill, before you go ahead with your design for a professionell pcb, please take in account that there is still a space problem. Your board is blocking a trimmer on issue 5 boards. Then axle of the trimmer is high enought to cause short circuits. I showed the postion on the picture. That the reas...
by QLObi
Tue Apr 22, 2014 1:32 pm
Forum: Hardware
Topic: QIMI Working!
Replies: 16
Views: 8790

Re: QIMI Working!

He Phill, nice work, but the reason why i tried to make it as small as possible is that i have a QLSD on board which occupy the left EPROM slot and has its own decoding on board. With your current prototyp this place is blocked. There is still an option to move with the QL-SD to the external connect...
by QLObi
Sun Apr 20, 2014 10:28 am
Forum: QL Emulation
Topic: Microdrive Emulator
Replies: 29
Views: 18964

Re: Microdrive Emulator

Hi Martin,
I tested an image created with your readmdv prog. The Q-emu report an invalid image.
Can you send me your sample for cross check ?

QLObi
by QLObi
Tue Apr 15, 2014 8:18 am
Forum: Hardware
Topic: QIMI hardware question(s)
Replies: 8
Views: 6233

Re: QIMI hardware question(s)

Hi all, why you invent the wheel 2 times. There is already a valid schematic and layout around. http://forum.tlienhard.com/phpBB3/viewtopic.php?f=9&t=1109&p=12271#p12271 Just use google translate, if you do not understand german. The schematic and the layout is in open eagle format. There is...
by QLObi
Sat Apr 12, 2014 11:33 am
Forum: QL Emulation
Topic: Microdrive Emulator
Replies: 29
Views: 18964

Re: Microdrive Emulator

Here is a working MDV image for Q-Emulator.

QLObi