Star Castle PS levels & display

Hi all,

Hoping to get some help with the above. I've already replaced the caps in my
Condor power supply and I get nice flat voltages coming out -- only instead
of -25 and +25 they're -30 and +30. The +5 is right on as there's a pot to
adjust it. How to bring in the other two? The SW1 jumper is set at 115, but
the AC in my house is up at around 123v.

I am hoping this will help with my other problem, which is the entire image
being offset towards the upper right corner of the display. Even points from
the lower left quadrant of the screen end up drawn northeast of the
centerpoint. As the machine warms up, the image gradually drifts into the
center until it's dead on. By this time Q105 and Q205 are piping hot, with
Q104 and Q204 not far behind. Perhaps this is why I can only do this so many
times before the main deflection transistors Q110 and Q111 give up and start
popping breakers.

Any ideas? I've already replaced all the diodes and tested the transistors.
Swapping DACs and the LF13331 had no effect. Could the 7815/7915s be at
fault? They run warm, which I chalked up to the +/-25 supplies being high,
but their outputs looked good.

I also have intensity, blanking and spot killer issues! Thanks,

-Douglas

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Received on Sun Feb 15 19:58:38 2004