20 Most Recent Pioneer PureVision Pro-800HD 43 in. Plasma HDTV Questions & Answers

this requires a replacement of the power supply board. This is per Pioneer tech support whom resolved my issue when I called. Hope this helps!

Here is a solution from the Pioneer web site:

http://www.pioneerelectronics.com/PUSA/Support/Important%3A+Updated+Information+Regarding+Free+Power+Supply+Replacement+for+Certain+Pioneer+Plasmas
Important: Updated Information Regarding Free Power Supply Replacement for Certain Pioneer Plasmas Pioneer is continuing to offer a free, in-home/office power supply replacement for certain of its second and third generation plasma models listed below for customers who experience a problem with the original power supply. If a model is not listed below, no power supply replacement is needed and no further action needs to be taken.
If you own or use a plasma listed below, please call our toll free hotline at 1-800-421-1404 to arrange a time to have your plasma's power supply upgraded at your residence or office at no charge.
Plasma Models (15 listed):

• PDP-505HD
• PDP-503PU
• PDP-5030HD
• PDP-5031HD
• PDP-433PU
• PDP-4300
• PDP-4310
• PDP-4330HD
• PRO-800HD
• PRO-800HDI
• PRO-1000HD
• PRO-1000HDI
• PDP-433CMX
• PDP-502MX
• PDP-503CMX

The issue with the power supply in the plasmas listed above does not pose any health or safety risk. Pioneer has received reports that the power supply in the affected models may fail. In some cases, a loud popping sound can be heard when a power supply fails. After the power supply fails, the plasma is no longer operable.

Anyone with questions can call Pioneer's toll free hotline at 800-421-1404.
We apologize for any inconvenience.

I'm working the same problem. Q127 shorted, R217 & R 133 open. Also have solder blown off one end of R222 and R351 (both sm 200 ohm). Looks like small, short trace evaporated on top layer between D145 and via directly below it. Q129 is open all ways (but not exploded).
This one has C164 installed as 1200 uf, 10V.

Any success getting your going again?

OK Its your power supply and it can be fixd for free due to a recall.
PLEASE READ BELOW what I found out.
Here's the whole notice:

Important: Free Power Supply Replacement for Certain Pioneer Plasmas

Pioneer is continuing to offer a free, in-home power supply replacement for certain of its second and third generation plasma models listed below for consumers who experience a problem with the original power supply. If a consumer model is not listed below, no power supply replacement is needed and no further action needs to be taken.

If you own or use a plasma listed below, please call our toll free hotline at 1-800-421-1404 to arrange a time to have your plasma's power supply upgraded in your home at no charge.

Consumer Plasma Models (12 listed):

PDP-505HD
PDP-503PU
PDP-5030HD
PDP-5031HD
PDP-433PU
PDP-4300
PDP-4310
PDP-4330HD
PRO-800HD
PRO-800HDI
PRO-1000HD
PRO-1000HDI
The issue with the power supply in the plasmas listed above does not pose any health or safety risk. Pioneer has received reports that the power supply in the affected models may fail. In some cases, a loud popping sound can be heard when a power supply fails. After the power supply fails, the plasma is no longer operable.

We apologize for any inconvenience, and we thank you for your cooperation.

i would say a power supply issue or maybe the Y SUSTAIN board, Check for swollen capacitors in the power supply, Test the voltages on the VA AND VS lines are there if so its more than likely your Y Sustain board.
Hope this helps

I had the same thing happen a few weeks ago to my zenith 50" plasma tv. I tried to turn it back on with the remote and the power button on the set but the only thing that happened was the led would flash green 3 times and then go back to red. I took it to a repair shop and they called yesterday to tell me it was going to cost $700 to fix it by replacing the power supply. No guarantees either that it will last any longer than the 3 years I've had it for either. But it's still cheaper than replacing it with a new "bigger" tv which is what I will eventually do anyway. I've heard of people looking on ebay for repair parts and doing the repairs themselves but there is no warranty on human error...

Check the power cable

The affected models of consumer plasmas are listed below. Anyone who owns or uses one of these models may contact Pioneer through its toll free hotline at 800-421-1404 to arrange for the free, in-home upgrade. If a consumer model is not listed below, no power supply replacement is needed and no further action needs to be taken. If consumers are not sure if their plasma is affected, they should call the toll free hotline for confirmation.
Consumer Plasma Models (13 listed): PDP-505HD PDP-4330HD PDP-503PU PDP-4300 PDP-5030HD PDP-4304 PDP-5031HD PDP-4310 PRO-1000HD PRO-800HD PRO-1000HDI PRO-800HDI PDP-433PU

Question edited for clarity. Great question Madeleine. The ones with Screen Saver and Audio are in Preview Mode. If you want to watch them, you have to subscribe. It is a tactic to get you hooked and get you to pay. Sometimes they will give you a couple of minutes of video and audio at the beginning of a programme. It isn't a television issue, it is your cable provider and a sales technique. ..

Remove the case, look for a fan, vacuum the main board and all case vents. ..

Sorry you're having problems. Offhand the 8 blink code on a Pioneer Plasma translates to an internal communication failure in the TV and generally requires repairs. However it's worth it to try a hard reset, as sometimes the processor in the TV can simply have locked up. The first thing you would try, is disconnect the set from power, then press and hold the power button on the TV itself (not the remote), for 10 seconds and release. Then plug the set back in, and also check that the power cord is connected tight at the TV as well. Press power once, and see if the set powers up normally.

The blue blinking light on your Pioneer amp could indicate a number of issues. One possible reason is that the amp is in "standby" mode, which means that it is not currently receiving any audio signals. Another possibility is that the amp is experiencing an error or malfunction. To get a better understanding of the issue, I would recommend checking the user manual for your Pioneer amp. If you don't have the manual, you can try searching for it online using the model number of your amp. You can also try resetting the amp by unplugging it from the power source for a few minutes and then plugging it back in. If the problem persists, it may be time to take your amp to a professional for repair.