Sanyo 20EZ Plays Dim yet Brightness is Up

kmssd

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In my machine is a Sanyo 20EZ, and the picture is very dim (now that I moved it into the basement) but the brightness adjustment is maxed out. I have a manual on my computer that shows there is a sub-brightness pot, is this something I should turn up to try and lower the main brightness adjustment?
 
I would center both the brightness and sub-brightness pots, then turn up the screen on the Flyback and see if you are getting a brighter picture. If so, then you could turn the Flyback screen back down to desired brightness and fine tune with the brightness and sub-brightness pots.

Be careful adjusting the sub-brightness pot if the game is on and the HV cage is missing from your chassis. You might get a shocking bite from the HOT.:eek:
 
I'm assuming you mean HV cage is the item in the lower right corner of this picture here (from google, http://i258.photobucket.com/albums/hh244/joeo42/Punch-Out/IMG_5579.jpg ) if that is, I do have it. Is the flyback listed as T452 FBT in the manual and is its adjustment on it?

I would center both the brightness and sub-brightness pots, then turn up the screen on the Flyback and see if you are getting a brighter picture. If so, then you could turn the Flyback screen back down to desired brightness and fine tune with the brightness and sub-brightness pots.

Be careful adjusting the sub-brightness pot if the game is on and the HV cage is missing from your chassis. You might get a shocking bite from the HOT.:eek:
 
That is the cage and yes, that would be the Flyback Transformer. The knob on the right will be the Screen/Master Brightness control.

Ok thanks. I'll have a go at that later today.

Thank you, thank you, thank you, this fixed it and my other issue. I thought I either had a bad chip or the green color was gone. It turns out adjusting the three knobs for brightness got it all back. I can't thank you enough for the help.
 
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