mine is doing the pulsating and the first digit in the score seams to collapse
the screen to enter initials is the worst it is jumping
when it test the grid and the text are pulsing at a different rate than the box
i did big blue and a different hv box and def pcb and still no help
is this in the tube ?
i have no bloom
or what to check on the game board
i have another tube should i try it or is this in the game board
thanks tony
On Thu, 17 May 2007 05:54:46 -0400, Kenneth Thomas Jr. wrote:
> Hi, I have one that does that also, quite random in it’s
> occurrence, non working when I bought it, I rebuilt AR pcb,
> installed heavy gauge ground wires everywhere, had matty-t rebuild
> deflection pcb, install new big blue, and I think I even replaced
> all of the connection pins on the pcb wiring harness connections,
> problem still persists but at least the game works, I doubt it is
> the HV diode since it doesn’t bloom, would love to know your fix.
> Kenny
>
>
> vectorlist@vectorlist.org] On Behalf Of Malcolm Mackenzie
> Sent: Wednesday, May 16, 2007 8:41 PM
> To: Vector List
> Subject: VECTOR: Interesting Asteroids 19V2000 Problem
>
>
> Hi all. I have an Asteroids that I brought back from the dead that
> has an interesting video problem. I wonder if any of you have seen
> it before. After the game warms up the video seems to pulse or
> momentarily collapse. It then recovers to its former size.
> Doesn't seem to be related to what the game output is and I tested
> the game with another monitor and it appears the board is putting
> out good video. I suspected the HV Diode, but replacing it did not
> fix the problem. I've already recapped the HV and the deflection
> boards as well as replacing all the big transistors and two of the
> deflection transistors on the deflection board. Anyone have an
> idea what might be doing this? Dying tube? Dying HV transformer?
> -Malcolm
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Received on Sat May 19 12:39:50 2007