DaveC wrote:
Pioneer plasma model PDP-V401. Original symptom: shut off after seconds or
minutes or hours of operation. Power LED blinked error code 6 (as best I can
determine the meaning of this code from Googling (I have no manual) this
means PS fault).

Replaced 16 electrolytic caps in the main PS that measured high ESR.

Now when first powered on after an overnight rest, it will shut off
immediately (stays on for maybe 5 seconds). After power cycling the main
switch (can't be done via remote -- must use the switch on the back), it will
run all day without problem.

All PS voltages are OK (factory sticker inside lists them); all are a few
tenths high (ie, 5v = 5.04).

What next step would you take in troubleshooting this PS?

Not really my area of expertise, but you've obviously got a cold fault.
Maybe the inrush-limiting thermister?

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