Re: Asteroids Deluxe with WG19V2000 problems

Hi,

I've had two B&W vector monitors with the same problem over the years, and
asked about how to fix this very same problem. After finding nothing which
helped, I just chalked it up to "the monitor is getting old", and lived with
the dot in the middle of the screen. Fortunately for me, there was a hole
burned in the phospher at the center of the tube, so I positioned it such that
the dot landed right in that hole, and viola! No more dot! :-)

Mark Jenison
Always looking for the simple man's answer

On Dec 9, 12:16pm, Josh Wirth wrote:
> Subject: Re: Asteroids Deluxe with WG19V2000 problems
> If I turn down the brightness to the point where the white dot is gone, I
> see only the dot intersections. If I turn it up to the point where the
> expected lines are visible, I see the retrace lines, also. I am thinking
> that maybe the HV cage and the tube are fine (I swapped out another tube.)
> I am going to borrow an oscilloscope and check the signal coming off. I am
> assuming the the best place to check this is on the Z OUT tab. My schematic
> shows pin M on the edge connector as Z OUT but I have placed it on K(?). I
> shorted pins 9&10 on the 12 pin connector at one time and blew the two 3.3
> ohm resistors there (I am not looking at the board.) Could this have hosed
> something else down the line?
Received on Thu Dec 9 15:43:36 1999