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#1
11-07-2009, 07:10 AM
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whats wrong with this picture?
This is a Happ vision pro in a cocktail cab wired up for jamma.
What is wrong with this ... why the waves. http://s433.photobucket.com/albums/q...t=MOV01462.flv What adustment can I make? what did I do wrong here?
__________________
Looking to puchase a 2 board DK PCB must not have sodered z80 chip. PM me with a good deal. 
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#2
11-07-2009, 11:48 AM
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Looks like your ground isn't hooked up (video ground, 4th pin on the connector after rgb.
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#3
11-07-2009, 01:14 PM
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If the video ground wasn't hooked up it wouldn't have any sync. You can try disconnecting your earth ground going to your monitor to see if it goes away. It may also be coming from the game board and/or power supply.
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#4
11-07-2009, 01:16 PM
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Actually, I'd say there probably ISN'T an earth ground connected to the frame....
__________________
Work - Tempest, Robotron, Kangaroo, Gyruss, SMB, Carnival, Rampage World Tour, Wheel of Fortune, Space Invaders, Trivia Whiz, Sharpshooter pinball [b]Will work someday[/] - too many to list here
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#5
11-07-2009, 01:20 PM
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Quote:
checked that ... no luck looks fine... I traced it back to the jamma connector... seems alright. The vertical sync doesn't need to be hooked up at all on this? I thought I had seen how people would tie the vertical to the horizontal using a loop? This isn't the issue?
__________________
Looking to puchase a 2 board DK PCB must not have sodered z80 chip. PM me with a good deal.
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#6
11-07-2009, 01:23 PM
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Maybe. I've tied it to both pins in Vision Pro's and had it work.
Also, some VP's have a white button near the video input. This is a sync selector switch. Sometimes you'll see weird display issues if that button is in the wrong position...
__________________
Work - Tempest, Robotron, Kangaroo, Gyruss, SMB, Carnival, Rampage World Tour, Wheel of Fortune, Space Invaders, Trivia Whiz, Sharpshooter pinball [b]Will work someday[/] - too many to list here
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#7
11-07-2009, 01:25 PM
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Quote:
What I did for power was spiced off a cord going in for the switcher and then pluged into the monitor straight from the cord. There is a earth ground. w to w , blk to blk, grn to grn... I am thinking of just disconnecting and using the original a/c plug it came with and just separating it from the line with the switcher on it.... Do you think that will make any difference?
__________________
Looking to puchase a 2 board DK PCB must not have sodered z80 chip. PM me with a good deal.
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#8
11-07-2009, 01:26 PM
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Quote:
__________________
Looking to puchase a 2 board DK PCB must not have sodered z80 chip. PM me with a good deal.
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#9
11-07-2009, 01:28 PM
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Quote:
__________________
Looking to puchase a 2 board DK PCB must not have sodered z80 chip. PM me with a good deal.
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