virtual Gun Help needed badly!!!

[vartech]

I just installed a Virtual Gun from Liksung and it flashes horizontial lines on my Wellsgardner monitor 25k7193 with ArcadeVGA I have connected the Vertical sync wire like instructions on this site,  my question is I thought it was suppose to be a solid flash not horizontial lines also is there a way to test that I am getting vert and horz signals to and from the monitor?

Help my kids and me are dying to use it.

[MameMaster!]

try here....good luck!
MameMaster!  

http://www.retroblast.com/reviews/lightgun1.html

[stiffarmleft]

I just installed a Virtual Gun from Liksung and it flashes horizontial lines on my Wellsgardner monitor 25k7193 with ArcadeVGA I have connected the Vertical sync wire like instructions on this site,  my question is I thought it was suppose to be a solid flash not horizontial lines also is there a way to test that I am getting vert and horz signals to and from the monitor?

Help my kids and me are dying to use it.

Did you ever find a solution to this problem, I have the same problem with horozontal lines on my Beston Imperial with this gun.  Also I can only get this game to work on house of the dead in Nebula, I can not get it to work in mame 87u2 on XP.  The cursor just drops to the bottom right corner when I pull the trigger.  Any assistance is appreciated.

[DYNAGOD]

if i had the cash, id find a way to hack an Act-Labs to fit inside of the Biogun frame..  

[KevSteele]

if i had the cash, id find a way to hack an Act-Labs to fit inside of the Biogun frame..  

I've got the BioGun and the ACT-Labs gun, but I'm afraid to start tearing things apart until I know for a fact I can get a replacement ACT-Labs gun.

I agree, an ACT-Labs gun in a Biogun frame would be the ultimate light gun - I just can't afford to take the risk yet. (Hopefully ACT-Labs will get a new USB light gun out soon!)

Kevin

[vartech]

Well I just got my replacement Virtual Gun and I can not get it to work for beans.  still horz lines cursor  just jumps from right of screen.  this thing sucks.

[stiffarmleft]

Well I just got my replacement Virtual Gun and I can not get it to work for beans.  still horz lines cursor  just jumps from right of screen.  this thing sucks.

I had to set my resolutions to 640x480 for my gun games in order to get it to work.  I thought that it would work at any resolution below 640x480, but not the case, it has to be 640x480.  

I get those horizontal lines also and the accuracy is really bad, there is no rhyme or reason to where the gun shoots so there is no adjusting my aim to compensate.  All in all a waste of money, I wish I had of gotten the acts labs before they were discontinued.

[vartech]

hey kevsteele what software and settings did you use to test the gun. aldo did you test it in a arcademonitor or computer screen.

[KevSteele]

hey kevsteele what software and settings did you use to test the gun. aldo did you test it in a arcademonitor or computer screen.

I used MAME on the Wells-Gardner D9200. I used both the "default" settings for games and 640x480, but I didn't notice that much of a difference in accuracy between lower resolutions and 640x480 (nothing higher was worth the effort!)

I didn't have any horizontal line problems - worst problem was that the gun consistently shot down and to the left of where you pointed it.

Kevin

[wpcmame]

I have a Hantarex POLO connected via a JPAC and can't get the gun to work there regardless of resolution. The gun works fine on a PC monitor but it does show horizontal lines when shooting (I assumed the lines were intentional to make it easier for the gun to detect the beam).

I used advm from the advcab package to test the gun. Advm shows the mouse movements reported by the gun. On the PC monitor it basicly looks like:

X: -200 Y: -100 (move to aimed position)
mouse click
X: 400 Y: 400   (back to lower right corner)

but on the arcade monitor it looks like:
X:-1 Y:-1
mouse click
X: 400 Y: 400

kevsteele. Did you run the tests in 15KHz or 31KHz mode (i.e. interlace or not)

[KevSteele]

kevsteele. Did you run the tests in 15KHz or 31KHz mode (i.e. interlace or not)

I ran the tests at 31Khz (non-interlaced), with both the ArcadeVGA card (which didn't work at all) and a Geforce3 card (which did).

My D9200 had the problem with the ArcadeVGA card and light guns (older rev. B boardset), so I had to use a Geforce3 card for testing.

That said, the gun worked with that combo - not very accurate, but it worked...

Kevin

[dabone]

Most guns need seperate sync.
Going thru the jpac you are only getting composite sync.
Try running seperate horizontal and vertical syncs to your monitor.


Later,
dabone

[wpcmame]

Most guns need seperate sync.
Going thru the jpac you are only getting composite sync.
Try running seperate horizontal and vertical syncs to your monitor.

Don't understand what you mean. Does it matter if the monitor picture is generated from composite or separate syncs?
The gun sits between the graphic card and the jpac so it should get separate syncs.

[dabone]

Yes but the monitor needs to get its sync seperate also.
The act lab guns wont work thru a jpac either.
The jpac combines each sync into 1 signal, the guns need the monitor to have both.

email andy@ultimarc.com and ask if there is a way to get seperate syncs out of a jpac. (I've done it with the video amp only)



Later,
dabone

[vartech]

Well I have seperate V and H syncs for my WG 25k7193 and get the horz line but the cusor just sites in the corner. I am using the ArcadeVGA yet no movement I think it has to do with Direct3d but not sure how to check it in regular mame.  THe reason Ken Steele did not get the horz lines on his arcade monitor I think had to do with d9200 problem.  If I test the gun on a pc monitor and use Mame32 with d3d on I get the horz lines and the gun works bad but it works.  If I turn d3d off the gun cursor just stays in the corner and no horz lines.  My next test so to try it with a true pc game like virtua cop or house of the dead.  

[wpcmame]

Yes but the monitor needs to get its sync seperate also.
The act lab guns wont work thru a jpac either.
The jpac combines each sync into 1 signal, the guns need the monitor to have both.

You are probably right but I'm trying to understand what is happening here.

Why is there a difference depending how the monitor receives the sync signals. If I understand correctly the sync signals are combined in the jpac but they must be split up again in the monitor since two completly different circuits are used for vertical and horizontal sync.

Also, in my understanding the gun determines the vertical position by counting sync pulses since the last vblank and determines the horizontal position by measuring the time between the horizontal sync and when the beam hits the gun diode. Don't understand how any of these operations can be dependent on if the sync pulses are transmitted in one or two wires between the jpac and the monitor.

[AndyWarne]

There is some incorrect info on this thread. The gun should work fine when using a J-PAC as this does not combine the syncs at the point where the gun is connected.
The J-PAC does synthesise a composite sync from the H and V but that is of no consequence since it is after the signal chain from the gun.
Andy

[dabone]

Hey Andy, with the act labs guns, the jpac would combine the syncs after the gun also, but they will not work unless you feed the actual seperate sync straight to the monitor.

I think the combining and seperating the syncs throw off the timing enough that the guns no longer work.

The guns need the sync that they get to match the sync that the monitor is running off.

Later,
dabone