Search found 4 matches

by relay01
Mon Jul 06, 2020 4:07 pm
Forum: Display Devices
Topic: No Green video on WG Arcade Monitor through Ultimarc Amp
Replies: 11
Views: 6426

Re: No Green video on WG Arcade Monitor through Ultimarc Amp

To anyone still following this thread, an update on this: I picked up a SCART2ARC30 (found here: https://etim.net.au/shop/shop.php?crn=215&rn=573&action=show_detail ) and it doesn't have the problem I had with the Ultimarc amp. All colors come through. I also had to make a vga to scart cable and enable csync in order to use it but it works ...
by relay01
Wed Jun 10, 2020 11:08 pm
Forum: Display Devices
Topic: No Green video on WG Arcade Monitor through Ultimarc Amp
Replies: 11
Views: 6426

Re: No Green video on WG Arcade Monitor through Ultimarc Amp

That's interesting because mine was effectively the opposite. If I use a test pattern with %100 green it comes through. I was really thinking about picking up a J-Pac since Porkchop reported using it himself. The circuits on the two products are supposedly using the same amp but I think the J-pac has additional protection and controller chips. Mine...
by relay01
Thu May 28, 2020 3:59 pm
Forum: Display Devices
Topic: VGA on CRT computer monitor unstable signal
Replies: 2
Views: 3241

Re: VGA on CRT computer monitor unstable signal

VGA pin9 is used to provided +5V in the connection. Shouldn't be necessary for monitors, usually only useful for certain adapters that don't supply their own power. I'm not sure if HDMI to VGA requires it. There is a mister.ini setting to show what resolution and frequency is being output. May be worth making sure it is outputting 640/480 or a reso...
by relay01
Thu May 28, 2020 3:50 pm
Forum: Display Devices
Topic: No Green video on WG Arcade Monitor through Ultimarc Amp
Replies: 11
Views: 6426

No Green video on WG Arcade Monitor through Ultimarc Amp

I've been trying to troubleshoot this for a couple weeks now but for some reason I don't get the color Green in the video output for MiSTer when connecting it to my arcade monitor. I have IO Board 6.0 to Ultimarc VGA Amplifier to WG K7500 Other VGA devices including a Raspberry PI and PC output correctly when run through the amp. I am also able to ...