20 Most Recent Panasonic PT-47X54 47" Rear Projection HDTV-Ready Television Questions & Answers

classic example of the failure of the high voltage circuit. If you have a Samsung like mine, the power supply has a capacitor (other tv has more than one capacitor) and this capacitor is failing to maintain the 400 volts needed to drive the video circuit/card.

Panasonic... | Answered on Oct 26, 2017

check your projector lamps in bottom of TV they could be going out

Panasonic... | Answered on Dec 02, 2012

A regular mirror will not work correctly---best bet is Google the model number with "mirror" as some sell mirrors and if that fails call Panasonic to see if available, part number, cost and where to order it.

Panasonic... | Answered on Apr 08, 2012

If the green color can't be align anymore in the convergence alignment through the menu, this is an indication of faulty convergence board inside. Your unit used STK-392-110 as convergence chip(IC) mounted in the heat sink. Replaced this IC and some of the resistors around to have a best picture again. You may do-it-yourself if you have a knowledge in soldering and disoldering technique. Just prepare some tools and I will give you the link to order online for convergence repair kit to save some hundreds of dollar for service fee alone. Click the link below to view how much it will cost.
Convergence Repair Kit
6.8ohms/1watt resistor
But before you make an order for parts, check first the board for bad solder joints(cracked/dried/cold solder) because it will do the same symptoms. Re-solder as much as possible.
If you don't have necessary tools and test instrument and can't troubleshoot the unit yourself, I would advice you to look for a qualified tv technician to do the job for you.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Panasonic... | Answered on May 21, 2011

ll projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.



Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Panasonic... | Answered on Jan 14, 2011

Mine Was 46" Sony And It Was A Tuner

Panasonic... | Answered on Sep 02, 2010

beeping from power cord

Panasonic... | Answered on Aug 31, 2010

Convergence problems. If they can't be fixed from the setting on the menu then the convergence board's IC's are faulty and must be replaced. This is a job for someone who has some electronics experience.

Panasonic... | Answered on Aug 09, 2010

With this symptom, it is impossible to tell what the exact "Cause" of this symptom is. The LED's do not tell us what is wrong, sometimes it may indicate the "Area" in your case it is the X board. BUT thats NOT where the "Fault is" thats just the part that is affected. These days unlike the "Old" analogue days it just isn't realistically possible to fix anything but the most basic of problems with todays sophisticated units. This is quite apart from the Safety aspect, any unit that can cause a firs or have an explosion, or both, is NOT to be treated lightly, and and the repairer, of the unit is legally responsible, another thing to think about. Also, one must have tools, a Multimeter, a soldering iron, a deslodering iron, an oscilloscope, a signal tracer, tools, and most important of all, a Service Manual, without which, there is no way to even begin to understand and fix it, and more importantly Program it, AFTER it has been fixed. As these days a TV, is a PC, a Tuner, and an HDTV Monitor, and more, all in one. So, it is nearly always my professional opinion that one should always get a "Quote" form the manufacturers recommended service center, I cannot stress how important that last point is. It is even worth the cost of shipping. you see an authorised service agent, will have trained staff, trained on their brand, also they have first hand access to parts, original parts. This will actually save you money and ensure you can actually get it back fixed. Of course asking for a "Quote" also gives on the option of repair or replace. Often my clients,do not go through with repair, unless it is moderate, but in some of the more costly jobs they see it, as do i, that a replacement, with a warranty, is a better option. As an aside here, one could then tear the TV down, and sell the Known Good bits. You'd be surprised who needs parts, i myself often must by from third party sources to effect a repair. So money could be recouped, somewhat,and help out someone else. Anyway thats my 10c worth.

Panasonic... | Answered on Mar 31, 2010

The lamp may be bad or a fan has stopped running. Remove your lamp and see if it's shattered or dark and gray in the center. Also your lamp timer could have reached it's limit. check your manual to see how you can reset the timer only if the lamp looks clear.

Panasonic... | Answered on Jan 29, 2010

Hi there,

Well First of all disconnect your TV from the power, leave it for about 5 mins and then plug back in. It helps you to reset the flashing light problem, if further you have the same problem means there is a damaged in the convergence IC, The three flashes of the LED, indicate a short in the power supply and my first guess would be the convergence IC's, replaced two convergence ICs (STK392-XXX) located on the large green printed circuit board. ICs are very large and screwed into two large heat sinks and soldered to board.
Please post comments if you need more help or information........

Good Luck!!


Panasonic... | Answered on Jan 09, 2010

Sounds like you have bad solder connections at your convergence ic's.These are large amplifier ic's mounted on large heat sinks.These ic's run very hot and can cause faulty connections at the solder joints.Try resoldering ,if this doesn't fix it you will need to replace them and any surrounding resistors that have opened.

Panasonic... | Answered on Dec 12, 2009

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