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Locked Cabinet + More
ZeroQuest:
--- Quote from: Fozzy The Bear on May 20, 2007, 12:37:15 pm ---
--- Quote from: ZeroQuest on May 20, 2007, 11:06:41 am ---When I turn off the machine the screen flashes and then goes out. (Just like a TV does) So it definitely appears to be working. I think you're right and that the monitor simply isn't getting a signal. I'm just not sure where to go from here. It's a standard Jamma cabinet, is there something common I should be checking for?
--- End quote ---
Yes.... Change out the cable from the board to the monitor..... It's more than likely a wire break and that is impossible to find just by looking.
Start by taking the cable out and buzzing through it with your meter to find out which line is down. I'd suspect that it's the sync signal, but it could be that it's the video signal if it's running in composite mode.
Best Regards,
Julian (Fozzy The Bear)
--- End quote ---
OK tried that. All wires check out fine. I don't have another JAMMA board to test this with... Is there anything else I can try? The picture on the monitor appears to be the same with or without the cable connected from the board. I did incorrectly attach the cable once and the picture did appear different, but looked as-if the horizontal hold was off by a large degree. I adjusted it and there was no picture, but it was no longer blue. I believe it was a light grey. (solid, no image)
ZeroQuest:
Going to attempt this:
http://dragonsden.emuunlim.com/ddvgatutl.htm
To test the monitor. If that works, it's most likely the JAMMA board... ? Maybe the connection to the board is loose. (thinking out loud) I'll try that first...
ZeroQuest:
OK, just spliced into the monitor cable using the directions above. Connected a PC to it and it works! :) So something on the JAMMA board is either loose or not working. Is this a common problem? Is there something on the board I should be looking for? I did notice both LEDs on the board are blinking. I'm not sure if that's normal or not...
Thanks in advance guys! Can't wait to get this thing working. My MAME cabinet needs a companion. ;)
ZeroQuest:
Removed the JAMMA board. Am now trying to find anything that could be shorted out. Board has some corrosion, so that's likely the culprit here. I'm just glad it's not the monitor. :)
BobA:
Clean off all the corosion with an eraser and then clean off the eraser bits with rubbing alcohol. Glad your monitor is OK.
:applaud:
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