Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: Chappie on September 04, 2010, 06:53:51 am

Title: Just Green (WG4906)
Post by: Chappie on September 04, 2010, 06:53:51 am
I have a monitor (WG4906) that is displaying a good quality picture but all I see is green. Adjustments to the red/blue drives changes the quality of the picture but does nothing to the color. I assume adjusting the red/blue drives UP is just saturating/blurring the picture is all that is happening there. I have not capped it at all and the game board tests good on another monitor for full color. Could it be the red/blue drive transistors or does a installing a cap kit actually re-introduce missing colors as one of it's fixes? Thanks.

Steve
Title: Re: Just Green (WG4906)
Post by: qrz on September 04, 2010, 02:26:42 pm
for the sake of argument , do check the xistors .
more likely is a weak crt . especially if it has some age to it .  rejuve time / or replace
Title: Re: Just Green (WG4906)
Post by: death69inc on September 19, 2010, 03:30:56 am
i have a 13" in a megatouch that is all red ... replaced caps and pots no change
but i can see other colors under the red hue ...can you see other colors under the green ?
Title: Re: Just Green (WG4906)
Post by: Chappie on September 19, 2010, 07:35:04 am
What I see appears to be a change in the lightness/darkness as I adjust the other colors which I am convinced is the colors being added/subtracted in the background, in other words the boards are working, but there is no actual reds/blues seen. I had moved the boards to a different tube and have seen the three colors. So it has to be the tube.

Steve