ASTRO CITY CAB JUST BOUGHT MONITOR NOT WORKING!
- Thread starter MikeHaggar
- Start date
the black cable right at the start (0.10 seconds) looks to be the monitor cable, it has the 2 pin 110v plug at one end and the small 2 pin chassis plug at the other end,
there is also a small remote board there as well which could be for the monitor?
but there are no pictures of the back of the monitor yet so this is just a guess, its an educated guess though...
these cables could just be old cables loose in the bottom though...
jengineer2015-09-07 14:14:06
there is also a small remote board there as well which could be for the monitor?
but there are no pictures of the back of the monitor yet so this is just a guess, its an educated guess though...
these cables could just be old cables loose in the bottom though...
jengineer2015-09-07 14:14:06
MikeHaggar
Newbie
Ive managed to open the back now and I cant tell if theres anything
wrong. Think Im gonna need someone to pop round who knows what theyre
doin. I could chuck em some cash if need be as want to know if this is
somethin or nothin. Heres the vid:
https://www.youtube.com/watch?v=9XEppAW6MMA
Cheers!
wrong. Think Im gonna need someone to pop round who knows what theyre
doin. I could chuck em some cash if need be as want to know if this is
somethin or nothin. Heres the vid:
https://www.youtube.com/watch?v=9XEppAW6MMA
Cheers!
MikeHaggar
Newbie
Alpha1 said:
at 32 seconds in isnt that the vga next to that usb?
In the link, the seller is writing that the cabinet contains a MS9-29 15 kHz monitor. He talks about an arcade VGA3000 video adapter and also about a Radeon HD 4350 video adapter.
In your youtube video, the video signal seems to come from the pc motherboard itself. I doubt that can produce a 15 kHz (or 25kHz) signal that will keep that monitor happy.
besides that, plugging in a video adapter on that pc mobo without any mechanical support is a very bad practice. The video adapter needs to be aligned perfect veritically, or it will give you problems. So, you basically should have received one or 2 video adapters with the system, unless you just bought one "like" the link you posted, and not "the one" from that link. If you have the correct setup with one of 2 video adapters mentionned in the link, you will need to setup a system with a normal pc vga monitor first. Once you have that running, you can install the special arcade video drivers and you can switch the resolution to 15 khz. After the switch, the normal pc monitor likely won't give a picture anymore, but the arcade monitor in your astro should do so.
It's strange if you find a loose adjustment board in the cabinet, as it's normally part of the monitor chassis. Wthout it, you can't do anything with most monitor chassis. So, even if the cabinet got a different monitor, you still would keep the old adjustment board together with the original monitor from the cabinet. The seller showing pictures on a forum of a system setup on 15 or 25 khz, and saying that he doesn't have any technical knowledge to help, sounds a bit strange to me. I also don't understand why he wipes the harddisk clean before he sells the system, since that removes the option to test the system. (Unless that was the purpose) The video showing the floating components of the system speaks a bit for itself.
In your youtube video, the video signal seems to come from the pc motherboard itself. I doubt that can produce a 15 kHz (or 25kHz) signal that will keep that monitor happy.
besides that, plugging in a video adapter on that pc mobo without any mechanical support is a very bad practice. The video adapter needs to be aligned perfect veritically, or it will give you problems. So, you basically should have received one or 2 video adapters with the system, unless you just bought one "like" the link you posted, and not "the one" from that link. If you have the correct setup with one of 2 video adapters mentionned in the link, you will need to setup a system with a normal pc vga monitor first. Once you have that running, you can install the special arcade video drivers and you can switch the resolution to 15 khz. After the switch, the normal pc monitor likely won't give a picture anymore, but the arcade monitor in your astro should do so.
It's strange if you find a loose adjustment board in the cabinet, as it's normally part of the monitor chassis. Wthout it, you can't do anything with most monitor chassis. So, even if the cabinet got a different monitor, you still would keep the old adjustment board together with the original monitor from the cabinet. The seller showing pictures on a forum of a system setup on 15 or 25 khz, and saying that he doesn't have any technical knowledge to help, sounds a bit strange to me. I also don't understand why he wipes the harddisk clean before he sells the system, since that removes the option to test the system. (Unless that was the purpose) The video showing the floating components of the system speaks a bit for itself.
Reading the original for sale post from 2014 it does say the PC system will be wiped.
Have you actually re-installed windows and MAME back on it?
Have you plugged a PC monitor into the PC to see what the PC is actually outputting?
Have you actually re-installed windows and MAME back on it?
Have you plugged a PC monitor into the PC to see what the PC is actually outputting?
MikeHaggar
Newbie
Alpha1 said:Yes on the PC. Not the monitor.
What sends the signal to the monitor? where does the other end of the VGA cable go
I dunno mate. Im literally clueless on this. I hated electronics in school ha. I just wanted a cab to play games on and was told Id bought a working one. If somethings up with it I dont mind paying someone to come look at it but I cant be messing with it. Need to know if Ive been sold a dud or its an easy fix. Must be someone northwest england who can come look at it for some cash? Getting desperate now ha.
If you look at the back of the monitor, on the right side you have a connector with the power and video signals. Also on that side, you have that large flatcable that should go to the control board. You could follow that cable and see if it's connected. The other square connector connected to the metal frame (and so further to the pcb) has 3 type of signals. The 100 - 120V AC supply, the video signal which is RGB sync and GND. It also has 2 black wires that go to the degaussing button.
the degaussing button is not stricktly needed, but you should have a supply and video signal to get a picture.
the degaussing button is not stricktly needed, but you should have a supply and video signal to get a picture.
I think at this stage you really need to plug a jamma pcb in and see what happens. There are too many unknowns with the pc.
MikeHaggar
Newbie
Alpha1 said:
the vga is going from the pc into the jpac jamma thing
MikeHaggar
Newbie
muddymusic said:
I own a final fight pcb but i dont have it at the mo. Do you just plug it into the pcb and thats it? But shouldnt the monitor at least be trying to come on even if the pc is not working properly?
there isn't a vga in on an MS9 chassis, the vga goes from pc - jpac - jamma harness. Got to check the voltage going to the monitor.
You could def try plugging a vga monitor into the pc though to see if there is anything on the pc!
strykr2015-09-07 17:10:02
You could def try plugging a vga monitor into the pc though to see if there is anything on the pc!
strykr2015-09-07 17:10:02
Ok, if the PC is connected to the J-pac and the jamma loom is then wired correctly, if the display was firing up properly even with just a PC bios on display you should still get an image even if it is a rolling screen (though for testing you can set the J-pac to 15K with a jumper) which says to me that even though you are powering up the PC you may not be powering up the screen, or the wiring to it has gone faulty somewhere.
VGA goes to JPAC and is amplified there. Arcade monitors need a higher voltage and have a 1K impedance. VGA signals are 50 Ohms impedance.
Yes the monitor should try to come on, but you likely won't see it. You might feel some electrostatic electricity on the front of the tube if the anode voltage is there. You might also be able to see a small reddish neckglow at the (small) end of the picture tube, but it needs to be dark to spot that.
You can turn up the screen voltage a little. This should result in a gray surface on the picture tube instead of it staying black. Don't mess with those monitor electronics if you don't know what you are doing. They bite hard.
Yes the monitor should try to come on, but you likely won't see it. You might feel some electrostatic electricity on the front of the tube if the anode voltage is there. You might also be able to see a small reddish neckglow at the (small) end of the picture tube, but it needs to be dark to spot that.
You can turn up the screen voltage a little. This should result in a gray surface on the picture tube instead of it staying black. Don't mess with those monitor electronics if you don't know what you are doing. They bite hard.
Regardless of what's on the PC, you should get something on the screen. The issue appears to be power related. I suspect the wiring/plug has come loose from the monitor to the PSU or however its wired.
Can you turn all the lights out and then switch on - do you see a glow on the monitor screen? Anything?
Can you turn all the lights out and then switch on - do you see a glow on the monitor screen? Anything?
The JPAC blocks the sync signals if they are not within the range set with the jumpers on the JPAC. This is to prevent the monitor from getting a sync signal that is 2 high. Maybe they block the video signal as well to avoid strange pictures on the tube (without sync?)
obcd said:
As I just said though, you can set them to 15k for testing with a jumper.
Also you can see the Sync ok LED light up green and Sync in lighting up orange (I'm presuming these are single colour LEDS).
More edits, "If required, can divide a
31Khz VGA signal in half so that
it will display a stable picture on a 15Khz arcade monitor. Useful for
checking boot-up progress and configuration (not for application use).
Automatically stops dividing the signal when it detects a correct 15Khz
rate is being send by the PC."
ZedEx48K2015-09-07 17:36:34