Dino King Monitor + vga amp issue

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   First project newbie with a Dino King. Hello!

I'm testing vga output to the monitor from my laptop using a ultimarc video amp. I've read the forum posts on jamma converting these but am monkey head scratching on this issue.

pic of wiring (that's the yellow wire disconnected just visible at top)

pic of screen output (video here) - red green and blue horizontal lines whizzing across the screen. Weeee

emoticon of me 

:) Any thoughts appreciated

ps. monitor tested ok with original game.

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ismine9 Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 14 Mar 2018 Location: South Wales Status: Offline Points: 121 Feedback: 0	Post Options Post Reply Quote ismine9 Report Post Thanks(0) Quote Reply Topic: Dino King Monitor + vga amp issue Posted: 10 Aug 2018 at 8:15pm
	First project newbie with a Dino King. Hello! I'm testing vga output to the monitor from my laptop using a ultimarc video amp. I've read the forum posts on jamma converting these but am monkey head scratching on this issue. pic of wiring (that's the yellow wire disconnected just visible at top) pic of screen output (video here) - red green and blue horizontal lines whizzing across the screen. Weeee emoticon of me :) Any thoughts appreciated ps. monitor tested ok with original game.

Hitesh Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 17 Apr 2011 Location: Eastbourne Status: Offline Points: 180 Feedback: 0	Post Options Post Reply Quote Hitesh Report Post Thanks(0) Quote Reply Posted: 10 Aug 2018 at 8:19pm
	I know less about monitors than anyone you have ever met but here goes; what the resolution settings on the computer? 640x480??

Hitesh Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 17 Apr 2011 Location: Eastbourne Status: Offline Points: 180 Feedback: 0	Post Options Post Reply Quote Hitesh Report Post Thanks(0) Quote Reply Posted: 10 Aug 2018 at 8:20pm
	Also, need to run soft15??

Flinnster Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List View Feedback Senior Member Joined: 04 Sep 2016 Location: Surrey, UK Status: Offline Points: 8634 Feedback: 5	Post Options Post Reply Quote Flinnster Report Post Thanks(0) Quote Reply Posted: 10 Aug 2018 at 8:23pm
	OOkaay. you need to make sure your sync cable is going to the horizontal sync line on the dino king monitor and not the vertical sync. The Dino King monitor uses the horizontal sync input as 'composite sync'. Then yep, you need to be outputting a 15Khz image. Usually windows on PC cannot be stopped from outputting 31Khz during bootup, so people with mame PCs switch on the monitor after bootup has completed. Escape-to-88 is likely your man on this stuff. He's done a lot of groovymamepc hacking with his Dino King recently.
	WTD: Outrun DLX (REALLY!), Rolling Thunder PCB Parts WTD: Any Dino King / LnB / MushiKing Spare Parts!

ismine9 Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback User Joined: 14 Mar 2018 Location: South Wales Status: Offline Points: 121 Feedback: 0	Post Options Post Reply Quote ismine9 Report Post Thanks(0) Quote Reply Posted: 10 Aug 2018 at 11:05pm
	Thanks for the advice. My masterplan was to test the dino monitor with my laptop and an ultimarc, then swap it with a pandoras box 5 (non cga), using the vga cable with the rest of the wiring on the jamma loom. I can see this plan may be a bit flawed as the laptop and the pandoras will be outputting a signal at 31khz not 15khz, so the arcade monitor won't like it? I think i'm going to have to stick with straight up jamma, which was the original plan anyway. I could be wrong and probably am!

aeroflott Members Profile Send Private Message Find Members Posts Add to Buddy List View Feedback Senior Members A different league Joined: 22 Apr 2012 Status: Offline Points: 3159 Feedback: 5	Post Options Post Reply Quote aeroflott Report Post Thanks(0) Quote Reply Posted: 10 Aug 2018 at 11:17pm
	Here's how mine was wired up: I also had to cut through the half moon shapes on the amp as per instructions. But all this means not much unless you're outputting a 15khz signal from your emulator.
	arcadeblogger.com

Flinnster Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List View Feedback Senior Member Joined: 04 Sep 2016 Location: Surrey, UK Status: Offline Points: 8634 Feedback: 5	Post Options Post Reply Quote Flinnster Report Post Thanks(0) Quote Reply Posted: 11 Aug 2018 at 12:36am
	Gotta love Segas wiring colour codes haven't you Interesting you have both H-sync and V-sync separate there. That ain't no jamma standard! Guess the monitors can support both composite and separate sync modes then. You wouldn't have managed to do anything higher res than interlaced 480i on your Dino King have you Tony? I run vertical games from the pi box in interlaced mode, it's pretty nice if you are prepared to squint at times (single pixel bullet games just ain't happening though!) Edited by Flinnster - 11 Aug 2018 at 12:37am
	WTD: Outrun DLX (REALLY!), Rolling Thunder PCB Parts WTD: Any Dino King / LnB / MushiKing Spare Parts!