20 Most Recent Panasonic PT-56WX53 53" Rear Projection HDTV-Ready Television Questions & Answers

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Panasonic... | Answered on Oct 02, 2013

3 blinks is error code for short protection---rare for set to even make it on with this issue. (another popular error is 5 blinks which is a short on the 140 vdc line but that is not your issue)

95 percent of the time this is a convergence problem---here is what to look for: Locate the two STK-392-110 CHIPS this set uses (hard to miss) and carefully inspect the blue resistors directly in front of them--you are looking for any of the 2.2 ohm that are either open or slightly discolored in the middle.

If even one is bad (they protect the source voltages to the chips) the set will detect no voltage to the chips and shut down=3 blink code.

If this is found both chips will have to be replaced and set adjusted---I can if this is the case tell you the best way to get at them and replace them--also the chips are very cheap---total parts cost for this type of repair is under 30 dollars.

Use a meter if none appear discolored (it will be slight discoloration and only on the 2.2 ohm resistors which have the value printed on them.

This set like others uses 2 voltages in the 20-30 volt range going to those resistors----one is a positive voltage and the other a negative voltage---either missing and set shuts down.

Let me know if you need the info about getting at them--a email address given will result in a copy of my own instructions for this repair as I have done hundreds of them.


Panasonic... | Answered on May 21, 2012

turning the red Screen down even slightly will make the other two CRTs dominate over red. You may be able to turn the Green and the Blue down slightly to balance them back to what red is at. Turning the screens down too low will cause them to shut off if they get lower than the cut off point.

Panasonic... | Answered on Sep 15, 2011


I have one, email me at [email protected], I will send you the copy. This is a convergence circuitry problem. The affected parts are the convergence chips STK392-110 and fusible resistors. Click here for the repair kit.

Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Panasonic... | Answered on Sep 13, 2011

The 3 flashes is the error code for failed convergence. The Panasonic PT53WX53 Convergence repair kit fits your model. Its available at www.tvrepairworld.com the kit contains the ICs, Resistors and the CD with step by step repair instructions.

Panasonic... | Answered on May 29, 2011

Can you tell me how many blinks.
If so, I may have an answer.

Panasonic... | Answered on May 10, 2011


When the convergence will not adjust after you know you have set them correctly using your TV's convergence adjustment, your convergence board went bad. You can either repair it yourself with kits sold online (links below) but unless you know how to solder very well, opt for a repair guy. Your model will cost between $350 and $450 if you hire someone.




If you like to tinker but not dwell into the soldering world, try finding the same model for free or dirt cheap on a web site like www.craigslist.org that still works but like where a kid jumped into the screen!, and swap out the board.

Good Luck! Please rate this answer if I was able to help.

Panasonic... | Answered on Mar 27, 2011

Failure of the convergence IC's. Part number STK392-110. You'll need both of them at a cost of around $100, and a soldering iron.

Bill W

Panasonic... | Answered on Mar 14, 2011

3 blinks is indicating that the convergence has shut the set down. The PT53WX53 convergence repair kit from www.tvrepairworld.com works for your model and should solve the 3 blink issue.

Panasonic... | Answered on Mar 07, 2011

Does this problem happen all the time ? What I mean is , if your watching the local news thru your cable/sat box does ot happen, or just when using aux imput. Either way, double image, or shadowing, is usually caused by a defective wire. Troubleshoot each unit, unplug everything and start from scratch.

Panasonic... | Answered on Mar 06, 2011

Three time power light blink indicates problem with convergence output circuit and since STKs have been replaced along with associated resistors so I would recommend to recheck your solder work that was done for replacement of these parts.
It will be very helpful if you find out what part is giving smoke when tv turns On, mention its circuit code like R123 or C123 etc, it will make easy to check it in related schematics and to understand the situation and route cause of problem to provide you helpful info.

Panasonic... | Answered on Feb 13, 2011

The 5 blinks on a Panasonic projection television set is usually a problem in the power supply to the high voltage circuits.

You should be able to get a local service center to repair this at your house for between $350.00 - $450.00.

If you want to repair this set yourself, I have some instructions below that will be a help to you.
***** NOTE : You can get electrocuted and be hurt or cause death . You have been warned, be very careful when repairing any electronics. ****

If you are handy with a DVM you can check a couple of things with the power off and the set unplugged.

Check the Horizontal Output Transistor (HOT) Q551 for shorts. You may have to remove it from the circuit to test it completely. Also, check the Damper Diode and the horizontal drive transformer T501, this transformer can have ring cracks around the legs and cause the HOT to short.

The next step would be to check to see if you have 140 VDC on the collector of the HOT. If you don’t then you will need to start trouble shooting to find out where the 140 VDC was lost.

This can be a difficult repair, so I would suggest that you call a reputable service center to come and check out your set.

I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.

Thanks for using FixYa

Panasonic... | Answered on Jul 26, 2010

Hey i have a panasonic 56 inch tv and there is no picture to the thing. any sugestions?

Panasonic... | Answered on Jul 02, 2010

Three blinks is short protection and usually means one of the two STK-392-110 convergence chips has shorted.

A very simple way to confirm this is to unplug the set and remove the back cover -------the two STK's will be mounted on metal heat sinks side by side and will have the number printed on the front of them.

Take a good look at all the light blue resistors around them---most will be marked 2.2 ohms--IF EVEN ONE IS DISCOLORED OR WHITE IN THE MIDDLE you have found your problem.

I have start to finish step by step instructions for this repair. Total parts cost if this is the case will be under 30 dollars.

Let me know what you find---I am here to help.


Panasonic... | Answered on Jun 12, 2010

If you try to adjust convergence with the flash focus, perfect focus, (depending on the make of your set) or by manual convergence and the lines will not line up or even move. Your symptom sounds like a damaged convergence IC.

If you want to repair this set yourself, I have some instructions below that will be a help to you.
While it is not a very hard repair, this repair can be a bit tricky. If you have a 45W soldering iron, solder, solder wick, heat sink compound, and some basic soldering skills, you can repair the television yourself.
If your set is not producing a clear picture and the colors are not lining up, do not continue to watch the set as this can lead to further failure and possibly damage the individual CRT’s in the set.
I have repaired hundreds of these sets, so if you have any questions after reading the following, please reply to this post and I will help you in any way that I can.

With that aside I have some support suggestions that I have put together that may help you make an informed decision.

You should be able to get a local service center to repair this at your house for between $350.00 - $450.00, If you want to repair this set yourself, I have some instructions below that will be a help to you.
While it is not a very hard repair, this repair can be a bit tricky

How do I tell if the IC’s are damaged?
Since you cannot look inside of an IC, you will have to locate some of the components in the area around the convergence IC’s. You may be able to see some resistors that have changed colors or you test a resistor and it no longer reads the value marked by the color bands or the printed value. You will have to replace the IC’s and the supporting components.

When you remove the old IC's, please be sure to remove all of the old heat sink compound, as it can act as an insulator for the new IC's and cause them to overheat. I usually clean the heat sinks with alcohol and a small rag.

Where are the IC’s located and how do I find them?
There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. If you only have one, it is right in the middle of the set on the center circuit board. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110.

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.

If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. I usually order my parts from Andrews Electronics in California, they will have the OEM components that you will need.
Their site is
And their phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the phone order so you can talk to the person about the different types of IC’s that are available.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try
http://www.tvrepairkits.com/ , they do carry OEM or better parts. When you order from them you will get a kit with instructions on how to do the repair, step-by-step.

I hope this information allows you to resolve this issue.
I am doing this for free.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up)
If you need further assistance please comment to this post and I will try to help you further.

Thanks for using FixYa

I have attached some photos of really bad convergence problems; your picture may not be exactly as bad as these.


Panasonic... | Answered on Mar 14, 2010

Yes you can get the repair kit for your model at www.tvrepairworld.com the kits contain the two ICs and the 6 resistors plus the CD with step by step instructions.

Panasonic... | Answered on Jan 06, 2010

If you go into the customer menu and select convergence and it is skewed you need to remove the light box and replace both of the STK-392-110 CONVERGENCE IC chips this set uses.

I HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR IN THIS SET--I can post them here if you think you or someone you know can do the repair.

Most shops get 300 or more for this repair--if you buy the chips on Ebay (I can tell you the seller to look for there) they and any other parts should total under 30 dollars. The fact that the set is still coming on means most likely just the two chips need to be replaced and the set adjusted with the Panasonic remote for this set.

If you have questions or want the instructions rate this solution and let me know and I will post them here---I do this here for FREE.


Panasonic... | Answered on Jan 06, 2010

5 blinks usually means a short on the 140 volt line coming out of the set's power supply.

Most likely cause for this to look at first is Q551---the horizontal output transistor. The part is on a heat sink usually on the right side as you look from the back of the set. If you have a ohmmeter, it has three leads--there should not be a reading from the middle lead to either of the other two leads---a short.

I do not access to the schematic for this set as the site is down---but it may also in front of the transistor several brown capacitors----Q551 is the location of the transistor----if you also find a brown capacitor location c509 (usually marked on it something like 0474) what may have happened is the cap shorted and got the transistor.

The cap can be looked and sometimes you will see a physical crack in it---it can also fail by either shorting or going open like a light bulb that has burned out.

If your set has that cap and it is cracked you most likely are going to find the Q551 shorted.

There are a few ways to troubleshoot this depending on how much skill you have.

If you need any help or advice let me know---I am here to help people here----posted a question early today for a car problem and got a good answer.

If this has helped you rate this solution as I do this here for free.


Panasonic... | Answered on Dec 14, 2009

Have you replaced Both of your convergence ICs if not then do so. STK392-110?

Panasonic... | Answered on Dec 12, 2009

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