MAD CIrCLES

[derek1800]

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Paging jlampc Wondering if you could help with virtua on monitor to arcadevga

I see you have converted a virtua on to a mame cabinet.

Or if anyone else can help with pinouts that would be great

I can get pictures if needed

Here is the info

Monitor:

Orientation: Horizontal
Type: Raster: Medium Resolution
CRT: Color
29-inch Nanao monitor

I almost positive it is dual res

Derek

[jlampc]

Hi,
Yup I got the monitor working with an Arcade VGA. The first thing you need to do is make sure the monitor has been switched to 15khz. On the board a set of pins should be labeled 15khz. Move the small wiring connector from the one set of pins to the 15khz pins.
That will switch it to 15khz.

Hopefully you bought the Vga harness thing from ultimarc. Its been labeled and make it easier to tie into the monitor's cables.

Once you get this far drop a response. This will give me a chance to remember how to get the vertical and Horizontal sync to play nice...

[derek1800]

Sorry I was out of town but  I just did what you said.

[jlampc]

Your board is different from mine...Make sure the connectors you changed said 15khz ...and 25kz...if so yer fine...

Did your monitor have a 3 prong for Power???

Mine ended in 3 wires with no Plug. I cut up an old PC Power cable and spliced it to the Monitors power cables. This worked fine for me. The hardest part was doing the wires for the VGA...and that wasn't that bad.

You need to get the cable from ultimarc. Its prelabeled so you dont have to guess what goes to which pin on the VGA adapter.
There should be a group of 5 or 6 wires probably color coded comping off the board. The are attached with a quick disconnect. I recommend removing the cable from the board. You should also take a close pictue of the silkscreens aroun the board connector. They are usaully labeled. Then All you do is play match the wire. I recommend just twisting the splices for now..to make sure they are correct. Plug in the monitor th the VGA and see if anything comes on.

The monitor is always on in my machine because there is no power switch. I ad to buy one of those auto sensing powerstrips..IT works great.

If the image is hard to keep synced..(It flips when you adjust the controls) then try different combinations of the sync wires. Let me know if you need to know what I connected together...Ill open my machine up and check..

Good luck
(the 29 inch screen is great!!)

[derek1800]

the monitor has a molex conector with 9 wres that go to it. 5 come from a pin connector with red blue green grey and white. Then there are 1 set of two red wires and one set of two black wires.

I hacked my vga cable and got red green blue ground vsync and hysnc.

I believe the red green blue go to the red green blue wires. From there I dont know what to do. I want to leave the power connected to the monitor like it suppose to be.


Thanks
Derek

[derek1800]

Mad circles

[derek1800]

It looks like it needs to be degaussed except I think it might be something else because my sega rally board looks fine when have it in the cabinet. Hooked up my vga cable wrong ?

[jlampc]

yikes!!!
 

Never seen that before....do you have speakers or somthing too close to the neck???

I am wondering if your cables wrong!!>..
did you hack your own cable or is this the one from ultimarc.??

Mine came up fine.
Lastly did you have to move the molex cable back to get the sega rally board to work??
I am hoping that is a yes...
The best thing to do is break down how your going to troubleshoot this.


one... make sure your pc and peripherals are away from the tube.
two ...make sure the wiring is correct. Triple check it.
three... Start disconnecting the color wires one by one from the vga harness.

see what happens...

Also are there any distortions when you are in the Bios setup, dos bootup screens or the XP loading screen???
 

[derek1800]

I sent an email to andy and he said it was my monitor not the way I hooked up the vga cable. I think it needs to be dagaussed because there are speakers right next to the tube. First I am going to test the sega rally board set. The next thing I am going to do is clean out all of the model 2 wiring from the cabinet. It might be wiring b\c I left the red and black wires alone as a assumed they were for powering and used my vga cable on only the 5 pin connector. Well see how it goes from there

Derek

[derek1800]

well i put in the sega rally board and there are circles hmm. Guess that makes it the monitor needs to be degaussed. I wonder if since I let the monitor run with out a board hooked up with speakers right next to it since I was using the other cab to play sega rally if that caused it to have the circles?

[Harry Potter]

1. Looks like you have your RGB lines mixed up. Another bloke had the same problem here a while back and that fixed it.

2. Degauss the poor thing. YOU'RE KILLING IT!  

3. Degaussing wand = about $70 AUS ($40 US)

[dabone]

Judging from the outer corner (upper left) His RGB lines are correct.

But do degauss that thing.


Later,
dabone

[derek1800]

All I had to do is reach in the coin box and press a button to degauss it Looks excellent now

Thanks