The NEW Build Your Own Arcade Controls
Main => Monitor/Video Forum => Topic started by: marcopolo on December 23, 2002, 02:35:35 pm
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Can someone who has a Wells Gardner D9200 or someone with technical experience please help....
I have a WG D9200 connected to a Trident T64 video card. I'm have a two issues:
1. major - when you look closely at the screen (both in dos and windows) about once every 2-3 seconds the text and graphics on the screen twitch (seems the whole image moves about .5mm) then moves back. It's hard to explain exactly what I am viewing, but it's really annoying, especially when viewing text on the screen. I've tried different video cards and different PCs, but it still happens, so it's definetly monitor related. Could it be interference? is there any setting to check?
2. minor - the screen is slightly tilted by about two degrees(no pincussion or trapezoid) , is there an adjustment on the monitor fix this?
Any advice or technical support is greatly appreciated.
Marco
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I've got a better explaination of issue #1 above - perhaps it will help me fix the problem:
When you have a black background (or you turn your contrast down to 0) every 2-3 seconds the brightness of the monitor goes up approx 15% for a brief moment and you notice a white flash (not huge, just enough to catch your eye). Does this help??
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Can someone who has a Wells Gardner D9200 or someone with technical experience please help....
I have a WG D9200 connected to a Trident T64 video card. I'm have a two issues:
1. major - when you look closely at the screen (both in dos and windows) about once every 2-3 seconds the text and graphics on the screen twitch (seems the whole image moves about .5mm) then moves back. It's hard to explain exactly what I am viewing, but it's really annoying, especially when viewing text on the screen. I've tried different video cards and different PCs, but it still happens, so it's definetly monitor related. Could it be interference? is there any setting to check?
2. minor - the screen is slightly tilted by about two degrees(no pincussion or trapezoid) , is there an adjustment on the monitor fix this?
Any advice or technical support is greatly appreciated.
Marco
1. assuming the monitor is connected via the VGA plug - try different resolutions and refresh rates. You don't need a trident T64 unless you are plugging it into the arcade inputs on the monitor(i.e., not the VGA plug). Try degaussing it. Does this problem happen just with MAME or every program? Are you using the same setups with all your PC's/video cards you are testing it on?
2. have you tried looking at the screen menu? there are options for adjusting everything about the picture. Access it via the little board with the four buttons that you attach with the ribbon cable.
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Can someone who has a Wells Gardner D9200 or someone with technical experience please help....
I have a WG D9200 connected to a Trident T64 video card. I'm have a two issues:
1. major - when you look closely at the screen (both in dos and windows) about once every 2-3 seconds the text and graphics on the screen twitch (seems the whole image moves about .5mm) then moves back. It's hard to explain exactly what I am viewing, but it's really annoying, especially when viewing text on the screen. I've tried different video cards and different PCs, but it still happens, so it's definetly monitor related. Could it be interference? is there any setting to check?
2. minor - the screen is slightly tilted by about two degrees(no pincussion or trapezoid) , is there an adjustment on the monitor fix this?
Any advice or technical support is greatly appreciated.
Marco
Regarding item 2 -- In am experiencing the same problem, but it may be a little worse. I have spent a lot of time adjusting the monitor (d9200), but can't seem to get the picture to be "square". There is an obvious slope across the top and the bottom right corner is clipped vertically when I extend the horizontal to the top right edge. Has anyone else seen this? Any ideas? I would really appreciate any assistance.
Thanks,
Jeff
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Follow up-
Item 1:
Found this in a D9200 TS document on the WG site:
MENU APPEARS - KEEP RIBBON CABLE AWAY FROM POWER SUPPLY AREA
Apparently the I2C control is hyper sensitive. Looks like Marco fixed his problem by changing the path of the cable.
Item 2:
I was looking at the spec and noticed that raster tilt is listed.
-Internal controls: Sub-brightness, focus, G2 (screen), raster tilt, HV adjust
I hope this is an adjustment knob - I sent an email to WG today requesting additional info on the raster tilt control. Everything I have found online refers to loosening a clamp and hand turning the yoke -- fun. Just getting the monitor into the cabinet was monumental - I'd rather not play with the internal controls. I will give an update after I hear back from WG.
Jeff
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Follow up for item 2:
I spoke with a technician at WG and he told me that the raster tilt control is located on the mainboard and is a small pot (Philips threaded) labeled VR101. It resides about an inch from the large heatsink. The proceedure is to slowly (and carefully) turn the pot with a small screwdriver. He said that it was relatively low risk proceedure and to just exercise common sense (ie don't grab the flyback while standing in a puddle of water - he really did say that). The control can be modified while the monitor is on and he suggested using a mirror to avoid running back and forth to check the result.
BTW - The technician discouraged me from adjusting any other internal controls. The focus is factory set and should not need adjusting for at least 10 years.
Hope this helps.
Jeff