Pioneer Plamsa CMX 43"

How many times this standby/power light blinks at one time switch ON?Count it carefully.These blinks are fault indication, and known as blinking codes.From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV.This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/ Pull up older posts.

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.

hi i have a pioneer plasma tv pdpro4e all it doses is flash green red green red and on the mediar reciver as well tv dont come on help please

check y board and power supply

If the light on the media reciever doesn't come on then the power supply in that needs to be replaced by a service tech. If you disconnect the 2 cables from the media reciever and the panel and then try to turn on the panel it should light with red and green squares for a few seconds but will turn off as it needs the media reciever to be connected.

Power supply is bad

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.

hy i got a toshiba 42" LCD tv ,when i press the power boton
iget the red light,& it stay that way ontil i pressthe power back off
thanks for any help

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!