Question about Pioneer PureVision PDP-503HDE 50 in. Plasma Television
The unit ha shistorically had a type of hissing nows coming from the back of , I have extended warrenty and as such they replaced the power board and the ysus board ( or called similiar). That was last week , it never cured the hissing noise and it also started it switching its self off rndomly.
Today it won't even come off stand by , instead trys to fire up, gives the red stand by light then powers down and starts a sequence of flashing blue LEDs, flashes 8 times then pauses then repeats.
The real pain is SKY are coming out to sort my sky+ plus box and I now have no TV to prove the fault ( almost funny! :D )
Pls tell me there is a key pad fix for this although I know I'm not that lucky!
I've currently got it unplugged hoping this will have some magial ealing effect!
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Posted on Jan 02, 2017
Ok here's how I manage solve the problem... Having the back removed opens the contacts on the interlock switch so I guess if it powers up in this state it senses the high voltages are exposed and for safety shuts down... After this the unit will not power up and the power led flashes red continuously as described before…
After some thought it occurred to me that there may not be a problem at all, just be a simple reset function for this condition… I managed to find an easy solution to this… Just call up the hidden engineer’s service menu – On 3rd generation Pioneer Plasmas it’s as follows > Power down the screen > Hold down the “Input” and “Vol +” buttons on the front > Power the screen up and the Service menu comes up on the screen > You don't need to change anything just simply power off and from then the screen should operate as normal…It did for me so I’m well happy now!!
I hope this information will help someone else one day – Good Luck!!…Rob UK…
Posted on Jan 04, 2008
SOURCE: plasma problems
THANKS FOR YOUR QUICK REPLY. I NOTICE YOU ARE BASED IN THE USA, I AM IN THE UK (JUST ACROSS THE POND) ARE YOU ABLE TO ASSIST ON THE UNITS THAT ARE SOLD HERE. IF YOU CAN THEN IT MAY WELL BE WORTH SUBSCRIBING BEST WISHES DAVE FOX.
Posted on Mar 07, 2008
SOURCE: plasma tv no longer powers up
The gas has leaked out and can't be fixed unless you pay to have a new panel assembly put in. Sorry its trash now as you can replace it cheaper now a days.
Posted on Mar 30, 2009
Just seeing if you had resolved the problem as my mum's Pioneer PDP-433HDE which she bought back 2002 has developed this same fault.
It has been a perfect TV and done very well with plenty of good use, but I have a feeling the cost of repair - even if it is possibale will be costly.
Posted on Oct 07, 2010
SOURCE: I have a Pioneer PDP-R05G
This is a classic "Hic-upping" switchmode power supply problem. The protection circuitry inside the SMPSU, has sensed a severe potential problem, and is attempting the shutting of the set, down to avoid a fire, explosion, or both.
This set had developed a problem, that is so severe that the set must be shut down, (This set should be removed from the Power),
What is happening is the internal "Fault" that is causing the Protection Circuitry , to detect the problem and attempt to shut down the set, keeps restarting the set, because as soon as it shuts down, the "Faulty" component(s) cool down?, and the "Fault" ostensibly "Clears" so the PSU starts up again, only for the component(s) to heat up, whatever, again and fail, so it shuts down, and if left unattended, this would continue on until the part eventually failed. As related this is called a "Hic-upping Power Supply". Any fault that involves the power supply is usually quite serious, and needs a professional, usually, unless one is familiar with servicing current day, televisions.
And in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center. Now, this point is very important for a good result, Always contact, their "Local" or a, "Head Office" Philips in your case. Ask them, for a referral to an authorised servicing center, where you ask for a "Quote". Now, when you get the information you want, then you can decide as to repair of replacement.
The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free. There are many, many, many reasons that display this symptom, one must work through the troubleshooting steps to isolate and identify, the Cause and repair that and any damage done.
service manual link above,
as an aside here, sometimes things in storage can quickly degrade especially big low value capacitors, these increase in internal resistance, and all sorts of problems ensue, this is why, say, military things are cycled at least weekly when in "Moth balls" to prevent exactly this.
Posted on Mar 12, 2011
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