tech monitor sync 25 inch

monster kong

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game:
egg venture

monitor that was in it previous- wg 25k2193 (wgm 2520). standard res
monitor picture was not that good (needed rebuild) and chassis was hacked in.

so.....i now put in a known working wg 25k7193 (wgr 2570) standard res.

picture isnt synced (vertical scrolling and looks like horizontal scrolling as well.) and its showing a triple kind of image.

the game calls for negative sync i beleive.

according to wg pinouts

25k2193= red, green, blue, ground, vert + , horizontal composite, empty, ground, vertical, horizontal composite. the sync wire was in the horizontal composite spot.

25k7193= red, green, blue, ground, vert +, horizontal - , empty, ground, vertical -, horizontal -.

so, where do i put the sync wire for the 25k7193? do i have to jumper it to more than one spot on the chassis? the signal comes from the "composite" out from the jamma harness. its only one wire.
 
K7000

1 Red
2 Green
3 Blue
4 Ground
5
6

1
2
3 Sync

Keep in mind you may have to adjust the monitor to still get the sync locked in. Horizontal Hold, 50/60Hz, Vertical Hold, etc.
 
i jumpered a wire from the neg horizontal sync to the negative vert sync as well and it worked.

so, it needs BOTH.

very weird!!

ps- i hate monitors...monitors are a big big reason operators and arcades phase out of video games (besides xbox:). too many probs, too costly to replace, wait periods are too long to send in chassis for repair.

it seems you have to jump through hoops when swapping monitors in games. different connectors, some need iso xformers, different resolutions, different pinouts....
some just wont fit in the cabinet........different mounting bolt paterns....blah blah blah...
ughhhh!!
 
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