G
Guest
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Archived from groups: rec.games.vectrex (More info?)
Hi all,
I picked up a faulty Vectrex unit this week and I'm just wondering if anyone
would know any common or stock faults with these. I'm quite a competent TV
engineer but a point in the right direction never goes amiss )
The symptoms I have are basically that the whole picture is compressed down
into the bottom left of the screen but what is displayed is just garbage
broken lines etc.
I know if I was dealing with an everyday TV receiver I'd be looking for a
sync processor fault but with this vector based technology I'm at a loss.
Is there a 'usual culprit' capacitor or such like? I notice when I touch
IC301 (MC1408P8) which I think is the D/A converter that the picture does
increase in size. I've ordered a new MC1408p8 just to eliminate it but can
anyone help?
Thanks in advance,
Steve
Scotland.
Hi all,
I picked up a faulty Vectrex unit this week and I'm just wondering if anyone
would know any common or stock faults with these. I'm quite a competent TV
engineer but a point in the right direction never goes amiss )
The symptoms I have are basically that the whole picture is compressed down
into the bottom left of the screen but what is displayed is just garbage
broken lines etc.
I know if I was dealing with an everyday TV receiver I'd be looking for a
sync processor fault but with this vector based technology I'm at a loss.
Is there a 'usual culprit' capacitor or such like? I notice when I touch
IC301 (MC1408P8) which I think is the D/A converter that the picture does
increase in size. I've ordered a new MC1408p8 just to eliminate it but can
anyone help?
Thanks in advance,
Steve
Scotland.