Bought this set non-working a few weeks ago and thought it would be an ea sy fix. It would power up for a second, then shut down and blink an error c ode suggesting a problem with the SS board (7 blinks I think). Someone had clearly attempted to fix said board and had made a mess of it, but since ev erything else looked good I thought it should be an easy fix. I ordered a brand new SS board and installed it, and to my surprise the s et was now totally dead - no lights at all. I checked a few voltages on the power supply and soon found the standby 5V was missing. So I bought a serv ice manual, only to discover that Panasonic no longer publishes schematics for any of its power supplies. It did however include a block diagram, and from that I was able to trace the 5VSTBY to Q151, used a switch by the powe r control CPU. Measured 5V on the input and the control side of Q151 (colle ctor and base?) but no output. Tried jumping the transistor, the standby LE D now lights but only to display a different error code (10 blinks - A boar d). Tempted to throw the set out in the snowbank at this point but back pro blems prevented me from doing so. So I thought I'd ask for some advice before wasting any more time or mone y on this. Note that it sat for about 3 weeks while I waited for the new SS board to arrive, so maybe the set reached it's self-destruct point during that period (they DO self-destruct even when not in use, thanks to the lead
-free solder you know). Thanks for any advice.