Question about Panasonic TH-50PX75U Plasma HDTV
Every place I've checked talks a blinking power red light in front. My TV doesn't have the power on blinking red light when I turn it on but still wont show any picture. The day before it did this too. But I left it alone and came back to it and it turned on right away.
Blinking power light indicates fault. From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. These are called blinking codes. To know more about these blinking coded, visit the site. It has details about blinking codes to many brand TVs. Pull up older posts. If you search the site in Timeslide option, which can be selected from the drop down list at the top left of the display window, it will be easy to locate the related post. http://electronicshelponline.blogspot.com/
Posted on Apr 23, 2013
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Posted on Jan 02, 2017
SOURCE: Panasonic plasma
If you open the back,look at the can shaped items.If any of them have the tops bulged out,they need to be replaced.This should solve your picture problem,unless there is something else wrong.What is happening,is they are heating up,and the picture goes out.I bet the longer you have the TV off,the longer it stays on?Hope this helps.Thank You very much! Tyler
Posted on Apr 07, 2008
It sounds like a bad PSU, or a bad solder joint on one of the boards.
If the TV goes in standby, then it is in protection mode.
Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
Try first leaving the TV power cord unplugged for some times, let say one hour or so.
The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.
1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.
2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.
If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.
If you are in situation 2 , then there is an internal fault.
If under warranty contact the manufacturer ringing the number on the user manual
If you want to repair at your own expenses, just locate any good qualified repairer.
If you want to DIY you find parts here,
All: Appliance parts, electronics parts & more from PartStore.com
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LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |
On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem
On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.
On Rear Projection : check lamp, lamp ballast, power board, and convergence.
On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.
Posted on Apr 19, 2009
red light flashes 4 times then stays on for about 5 seconds then flashes 4 times again any idea what this means and how i can fix it tv is about 4 years old and only just started doing this
Posted on Jun 11, 2009
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If the power light blinks slowly,
you've tried to turn on the TV during
the lamp cooldown cycle. Wait
approximately 30 seconds, and the TV
will turn on automatically.
If light blinks, pauses for about a
minute, and blinks again: the lamp is
trying to turn on (TV will turn on
when successful). If TV doesn't turn
on and sequence continues, the lamp also
needs to be replaced.
To order lamp call 1-800-338-0376.
Have your TV serial number
and lamp type available (you'll
find this information on the
sticker that's on the right side of
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