At 09:38 PM 10/24/2007 -0400, KA4HJH wrote:
>I have a Tempest sitting here with a monitor that dies if you put the back
>door on. Wonder what it could be...?
Probably the deflection transistors overheating. You might want to freshen
up the heatsink grease, as well as drill some holes in the back & mount a
fan to blow across the deflection board. While you're at it, you may want
to upgrade the transistors to a bigger package (w/ more surface area) - see
http://www.repairfaq.org/REPAIR/F_VAtari6.html . Even if these things
don't fix the problem, they'll extend the life of your deflection board.
Good luck!
Jeffrey
PS Don't work on a monitor unless you know how to discharge it properly!