HV tracking across flexible PCB strips
ard at p850ug1.demon.co.uk
Mon May 11 11:22:50 CDT 2015
> However, there's a flexible plastic strip running between the CRT face and
> the chassis which carries three lines (it's a storage tube rather than a
> conventional CRT) and I'm still getting periodic arcing across these lines
> which of course upsets the display's operation. As far as I can tell,
> there's no 'sandwich' (and hence glue) involved - it's just a single
> plastic strip with conductive traces drawn onto it.
What does this strip connect to? Is it part of the CRT (or connected to the CRT), does
it connect to a coil around the CRT, or what?
I am wondering if there is something else leaking or flashing over which is causing
excessive voltage to appear here.
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