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Asteroids help

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keptboy View Drop Down
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    Posted: 06 Feb 2021 at 4:16pm
Asteroids upright cabinet plays but is not blankiing off the lines from the asteroids so it draws extra lines on the screen - not sure what is causing this is anyone can advise please

Here is a link

https://youtu.be/D8phdoANd5w

Edited by keptboy - 06 Feb 2021 at 4:39pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Equites Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2021 at 5:05pm
Your brightness is way too high.

The pot wheel is on the deflection board on the monitor, tweak it till the centre bright dot is gone.  Be quick, it will burn the phospor off your tube.
Atari PCB's (and most non-Atari), AR2's, Vector Deflection/HV boards repaired & refurbished.
Wanted: Non-working Atari PCBs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote keptboy Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2021 at 5:06pm
How has it happened as it was working fine the day before
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Equites Quote  Post ReplyReply Direct Link To This Post Posted: 06 Feb 2021 at 9:36pm
Old pots are known to drift.
Atari PCB's (and most non-Atari), AR2's, Vector Deflection/HV boards repaired & refurbished.
Wanted: Non-working Atari PCBs.
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