Hey i have a pioneer plasma tv Model PDU-M5003 when i turn it on the "stanby" and "on" light flash left to right..what causes this?

Unless your a skilled electronic tech and have the test gear to trouble shoot the set don't waist your money trying to fix it. Plasma sets are about 10x more complex than a LCD set

If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary

I rearranged furniture in my living room, picking up my pro-151fd elite, plugged it in to have no power, tried everything I could think of including an overnight reset. Thought of what could be the common denominator with most of the issues that people have, it's that they picked it up, felt under the front left and turned the tv on. The switch is not labeled, is part of a sqaure protrusion at the very bottom of the tv, 1" to the right of the "Pioneer" label, hope this helps someone who just has a dead tv without the blue flashing lights.

I would suggest replacing the board itself, chances are what caused those fuses to blow is still faulty. did you check those fuses again after you powered it back up?

On some plasma tvs they will shut down on stand by if the cooling fans fail , my tv has 5 across the top. may be 1 or more has failed, if fans are ok then may be a capacitor in the power supply has leaked,

pete

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

I would assume the power board has a problem. A tech could possibly repair it without replacing the whole board.

Unfortunately you need a repair man. The 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.