Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: perjmolsen on April 30, 2019, 05:29:44 am
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Hi
I have got an old German manufactured Arcade cabinet, model TV-IDEAL
In this cabinet there is an arcade monitor with an valvo vcc 91 chassis.
Documentation to the chassis can be found here ->
http://files.arcadeinfo.de/Monitore/Valvo%20Compact%20Chassis%20VCC%2091.pdf
The monitor is turned vertical.
My issue is that I am unable to find the adjustment pot that adjusts the normal with of the picture.
I have tried to turn the "L102" H-ampitude but it does not seem to change anything ( I have turned it 2-3 times both ways, nothing happens)
If i try to turn "P 301" H-Bildlage I can move the picture.
What can be the cause for the missing stretch of the picture?
I do now know when, or the chassis has got a cap kit replacement job.. The picture looks "OK" the agte of the game and so on, so A cap kit where not my first guess..
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Hmm just noticted that there is a "L101" - H - linearität.
That adjustment pot mig be the one that adjust the horizontal size...
Why is it not on english :D
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It's really only L102 but the core needs to be turned many times to make any change and in any case it will be a small change.
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Hi
Ok thanks ! :cheers:
I where unsure what L102 did, because i could not see any changes on the screen, so i did not want to turn it to much.
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Hi
I Have now turned L102 all the way down in the coil and it did the picture wider, but not all the way, still missing 1-2 cm
Can the reason be bad caps?