RE: Interesting Asteroids 19V2000 Problem

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

________________________________

From: owner-vectorlist@vectorlist.org
[mailto:owner-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 Thu May 17 05:54:32 2007