WG4900 & Moon Patrol

joseph77

Well-known member
Joined
Jan 3, 2009
Messages
2,150
Reaction score
115
Location
Cicero, New York
I took a WG4900 out of a Tetris, had a great picture, and put it in a Moon Patrol. Colors look great but I can't get a full screen picture. Made adjustments for a good 1/2 hour and still could not get it. I get about half the screen with a slight bend. Is it the width coil that needs to be adjusted?
 
Change the width cap to compensate. Moon Patrol always seems to be smaller than everything else...
 
There was a specific 4900 model used for Moon Patrols...K4903. Williams issued a service bulletin about it.....noting the differences.

82K 1/4W resistor (R387) added across C309
3.9K 1/4W resistor (R316) added across C314
Value of C365 changed to .15uf400V
Horizontal centering jumper is deleted


I'd do what Mod said....change the value of C365


Edward
 
I will consider that. I do have an extra G07 laying around. Would that work in it without having to mess around?
 
Back
Top Bottom