ASTRO CITY CAB JUST BOUGHT MONITOR NOT WORKING!

[AaronBoone]

The split screen is the j-pac splitting the 31khz PC signal for the 15khz monitor. It looks like the monitor is ok to me. Crucially, the PC doesn't appear to have a suitable video card needed to produce 15khz signal (you're plugged into the onboard video). The monitor in your Egret is probably try-sync and can display 31khz.
Get a regular jamma board and it'll likely work no prob. Then check out groovymame and crt emudrivers to get the PC running on the Astro. Like I say though, Looks like you need a video card added to that kit.

I think Zipper is right. If you look at the picture it's asking you to insert a system disk. If it's the PC from the thread you posted it says that it will be formatted before it's sent. So, basically you don't have an OS for the PC to boot in to. And, as has been said the screen is split as the Jpac is splitting the 31khz resolution in 2 to get something on the 15khz screen.

So, all you need to do is install an OS on the disk drive and you'll also need the video cards that the thread said the cab came with - I'd shove the ArcadeVGA in it as it'll be the easiest. That should sort everything out.

Cheers.

 

[obcd]

Pc looks like it's working, but it has no Operating System on the harddisk.

It was written on the Forum like that, Hardisk wiped clean...

Further, I agree that another video adapter is needed that can produce a 15 kHz signal.

On the Forum, they even write to deliver 2 such different cards with the system.

They seem to have vanished?

 

[Alpha1]

So it's just a dodgy stepdown transformer! Result!

So all you need now is someone to sort you a new hard disk for the PC (or take the existing one out to get sorted), and you're done

 

[Zipper]

Yeah - that's a big result. Put win7 on the PC, and add video card + ram. Install groovymame and crt emudrivers / arcade vga drivers.
Play the egret whilst treating the astro as a project (or use it for jamma and sell the PC. I'd prob be interested).
It seems odd that the faulty stepdown was able to power the marquee but not the monitor - something isn't right there. The marquee tube would be original and 100v too I assume. it would be worth shoving a meter on the stepdown before you bin it.

 

[MikeHaggar]

I think someone needs to go round vib, I get a feeling any tracing isn't going to happen.

Yeah someone help please coz Im about to go send it to andy at arcade club which means delivery costs etc. Could just pay someone local to nip round and sort it. Dont forget youd be helping a youtuber with 170,000 subs so when I make a vid on this all the help gets shouted out!

I'm from Hazel Grove which is about 30 minutes from Manchester, you still haven't said exactly where you are?

it sounds like you've maybe got a couple of issues, maybe monitor not wired up correctly and also a pc issue? I probably won't be able to fix the pc issue because I don't work on pc's

If Andy at arcade club has said you can take it to him so he can have a look then I recommend doing that

Im in wigan. Andy has my final fight pcb so Im gonna shoot round there grab it and test it. If it doesnt work with that Im gonna have to send it to him I think.

 

[Zipper]

I'm pretty sure the Final Fight will work brilliantly.
With regard to the 2x video cards obcd mentioned were in the original sale thread (Radeon + Arcade VGA) - have you checked the coin box

? There's a bit of work in setting up a 15khz mame pc, but it's good fun.

 

[Purity]

Yea, the easiest test would be to stick a board on it and see if you get a nice picture

 

[MikeHaggar]

Tested a board on it and still nothing from the monitor.

 

[grainflavour]

Just to clarify, you have had a picture on the astro city monitor (albeit a blurry one) and with a pcb you are not getting a picture?

 

[MikeHaggar]

Just to clarify, you have had a picture on the astro city monitor (albeit a blurry one) and with a pcb you are not getting a picture?

yea. not sure if the monitor is hooked up to the jpac and not the jamma harness

 

[grainflavour]

What lights up on the Jpac when powered?

The Jpac (at least a new version) prevents signal from being sent it can't sync to your monitor. Therefore you will see nothing on the monitor.

Edit

Zipper wrote:

The split screen is the j-pac
splitting the 31khz PC signal for the 15khz monitor. It looks like the
monitor is ok to me. Crucially, the PC doesn't appear to have a suitable
video card needed to produce 15khz signal (you're plugged into the
onboard video). The monitor in your Egret is probably try-sync and can
display 31khz.
grainflavour2015-09-08 18:13:41

 

[strykr]

Did you check the 5v before you plugged a pcb in?

 

[Zipper]

the monitor goes to the jamma edge connector (and on to either pcb or the jpac, depending on which you have plugged in). Few q's if pcb isn't even working.. Can you hear final fight attract sounds over the speakers? Is there a red light on the front of your psu? Perhaps reseat the white connector on the side of the monitor chassis to make sure it's not loose, because swapping a jpac (that was shown to be working), with a pcb, should be fine. Very odd. Do you hear static as the monitor fires up? Or does it appear completely dead as it was before you swapped step down transformers?

 

[obcd]

It wouldn't suprise me if the JPAC is getting it's power from the pc power supply. In that case, a pcb plugged into the jamma connector wouldn't get any power. At least on his first video, there is no sign of an arcade supply. I don't quite get what connecting a jamma pcb should prove? There was a picture on the monitor with the pc and the JPAC, so the monitor works, the pc works and the JPAC is working. The pc simply isn't outputting a 15kHZ signal.

I would return the system to previous (partially) working state and continue from there, unless you intend to use the system to connect some jamma pcb game boards? In that case, you should check if the Jamma game board is getting power, and where that power comes from.

 

[Eddhorse]

Did this ever get sorted after?

 

[JohnBud]

yup, all sorted now