No Power Fault
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A Samsung 40 inch LCD TV that just clicks and never turns on, fixed by spotting and replacing two worn 1000uF 25V capacitors on the power board, with ESR meter results.
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A comedically addressed box of Atari hardware for repair: a non-working Jaguar with a risky multi-voltage PSU, a boxed Team Tap and a surprise Lynx that would not turn on.
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An MFS Quicktip: how to check the 7805 regulator in a ZX Spectrum 48K with a cheap multimeter, from the PSU plug to the 5V output pin.
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A kind donation from Scott Goodman: another Amstrad CPC464, hopefully with a working tape deck for my project machine, plus a possible wrong-PSU power fault to investigate.