Motorola ts18 contrast control

[timmy]

Well it has the 220k and its using the 250mmf that is at the 6sl7 pin 5 so it's right but I may try another 250mmf and see if it improves. And it's wired the same way I wired my other sets so it is right.

[tom.j.fla]

If you have a scope make sure that it is a neg. going pulse that is getting to the crt control grid. If the pulse is positive going it lets the vertical retrace show on screen of the crt. I have seen a few Motorola 7" & 8" sets with wiring in vertical section flipped. All the best,Tom