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Main => Monitor/Video Forum => Topic started by: 68ragtop on June 22, 2006, 06:55:41 pm

Title: W/G 25" weird green lines
Post by: 68ragtop on June 22, 2006, 06:55:41 pm

Hi Guys,  I have a MKII with a W/G 25K7197, with a Philips Mo8X CRT.
It has faint green horizontal lines sweeping through the screen that slope slightly, & are about 1 1/4" apart, top to bottom.   They don't adjust out, & I am not sure what to look for.  I have the service manual for it, But was hoping someone might be able to help me locate the problem.

Thanks, Carl

Title: Re: W/G 25" weird green lines
Post by: Ken Layton on June 22, 2006, 07:00:52 pm

Turn the "screen" control on the flyback down slightly (counterclockwise).

Title: Re: W/G 25" weird green lines
Post by: 68ragtop on June 22, 2006, 08:22:31 pm

You Got it!   Thanks, That was quick!

Do you know if there is a horizontal position adjustment on these?
Seems the image is about 1" from the top & all I have is a horizontal
size adjustment.  I basically adjust the size until the bottom is correct, but
it leaves the image 1" low on the top.

Thanks again,  I now have a nice bright picture on a black screen!
No green lines :cheers:

Title: Re: W/G 25" weird green lines
Post by: Kevin Mullins on June 22, 2006, 09:36:58 pm

An MKII is a horizontally mounted monitor..... so are actually asking about a "vertical adjustment" since you need to move or resize the picture up and down?

Title: Re: W/G 25" weird green lines
Post by: 68ragtop on June 23, 2006, 08:19:54 am

Sorry, your right.  It has horizontal size & position adjustments But only verticle size.  So I don't seem to have a way to change verticle position.

Carl

Title: Re: W/G 25" weird green lines
Post by: Kevin Mullins on June 23, 2006, 09:45:01 am

Do you have the manual? (K7000)
Does your monitor have the remote adjustment board?

Those generally have a vertical raster position pot on the back of the chassis along with the others or a vertical pos on the remote board.

You may need to find the transistor Q9 on the chassis and check it.