On Sunday, October 20, 2013 10:28:01 PM UTC-7, Rich Haak wrote:
> I have a viera TC-P65S1 that is throwing a 9 blink code on the power LED. Until now I have been able to power it up by holding the power button for around 10 seconds but it isn't working anymore. From what I can find online, there's a problem with the A board. Is this something I can change with average mechanical and electrical skills? Could it be just a firmware problem?
>
> Rich
I've resurrected a lot of gear by replacing bad capacitors. I was looking on
badcaps.net and someone said they "After replacing those stressed 'lytics," - your Panasonic model - all the high Voltage primaries - it still didn't work. But those weren't the bad caps. I've only seen ONE switching power supply that lost a high Voltage cap. The vast majority are in the control loop and the output caps. Often they are bulging but not always. If they ARE bulging they need to go. I've seen no surface mount caps that bulged but LOTS (LOTS!!) of bad ones. They are THE WORST for failing but are some of the easiest to replace. I use a cutter with a very thin nose and cut them out. Do NOT cut at the bottom as you'll tear off the pads. Cut the cap at the seal crimp point and then remove the seal disc. Then clip off the wide part of the leads, remove the plastic base and un-solder the old flat leads.
Make sure you buy GOOD caps, not the everyday junk at the local supplier. Particularly for switching supplies, you want high ripple current (low ESR) and long life units. DigiKey's online catalog is easy to deal with and I buy LOTS of caps for work. Mouser is another good source.
Take pictures so you can get it re-assembled as it was.
G²