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  1. 29-06-2012 #5
    Robin Hewitt's Avatar
    Lives in Seaford, Sussex, United Kingdom.
    Robin Hewitt
    Last Activity: 4 Weeks Ago Has a total post count of 1,618. Received thanks 109 times, giving thanks to others 7 times. Is a beta tester for Machinists Network features. Referred 1 members to the community.
    Quote Originally Posted by Web Goblin View Post
    It could be one of the capacitors on the display board has died
    I used to fix monitors with built in PSU's just by changing the electrolytics. They dry out after a few years, I even fixed a BMW once by changing one cap rather than the whole circuit board. It sounds like you have noise on the quadrature inputs, so WG could be spot on here. They save pennies by using aluminium rather than tantalum and limit the life time. Take photos before you rip them out if they haven't marked the polarity on the PCB.
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