[D1rector]

Can't figure out whats causing the squiggly horizontal lines that come and go on my GP-5000 (GE-imager 610). They are on all three guns and will disappear after shutting the PJ off for awhile. Sometime they re-appear if I change the RGB input frequency from 1024x768 to 600x800 then vanish after powering down and up again. They're totally unpredictable. At first I thought I fried the tubes with a power surge. Anybody?


Rick

 

[Doug Baisey]

Rick,

Can you post a photo? Not sure what squiggly lines look like.

On the GP series you had to exit the top line of the signal entry menu item, not the one below it. Try deleting point memory, it could be the memory is full and cant grab the signal right or the C-F drive board is at fault. I do have some parts for this. Doug

 

[D1rector]

Yes. Please see attached JPEGS.

 

[Doug Baisey]

Rick,

Can you take another with the test pattern up on cross-hatch. Are the lines moving down the screen or stay in one place? Doug

 

[Curt Palme]

Dammit Jim, I'm a CRT tech, not a doctor!..


I'm about to scrap a GP 5000 that works, so if Doug can diagnose, I can supply the part(s) needed dirt cheap..


Curt

 

[D1rector]

The lines do not move, but can multiply. See test pattern.


Rick

 

[Doug Baisey]

Rick,

Inside the cover on the center board is the C F drive, lift the C connector and see if it goes away or stays there. Dont freak out, it removes the concergence board. Doug

 

[D1rector]

Doug, looks like the C board . are there any known components on this board for replacement?

could be overdriven conv. going to try to erase memory and re set up. any thoughts?

 

[Doug Baisey]

Did removing correct? If yes delete the point first then linearity in the vertical direction. Im not sure but Id do the memory first. You wont find the critical components so its a board most likley. Doug

 

[D1rector]

Doug,

I'll give it try. thanks