There are several PCB's in the DVC:
Mechanical \ IF
all of these boards have lots of, electrolytic can, surface mount capacitors:
upon researching the MFG specifications of the caps used by Panasonic, i found that they have a lifetime use rating in hours at a given temperature..
3000 hours of use at 100 deg c
these caps dry up and the power supplys get noisy and the caps that are employed in time constant circuit applications function out of spec ( if at all )
For about 3 months have been refurbinshing units successfully by replacing all of these caps
panasonic makes all of thes caps available as a service part kit
however the pcb's are very deleicate
I am only successful because I have 15 years of electronics engineering ecperience..
there is a tool call a Capacitor ERS analyzer ( Equivalt Series Resistance )
a good cap will measure .25 to 2 ohms and anything above 5 ohms is stale
I am getting set up in a new building for serviceing 230's and 255's at first and then i'll expand
I use a electronics assembly house to do the replacment of alll of the cap that go stale.
I have put together caps lists and digikey part #'s and generated my own re-capping kit that is much cheaper that the kit offered bt panasonic.
if you are interested in my services I am Ed