20 Most Recent Panasonic PT-47WX53 47" Rear Projection HDTV - Page 4 Questions & Answers

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

You will need to replace both convergence ICs and also possibly the associated low ohm resistors, since the 3 blinks is indicating that the convergence has failed. The PT47WX52 convergence repair kit is available from www.tvrepairworld.com which has the two ICs , heat sink paste, low ohm resistors and the CD with repair instructions.

On a panasonic if its a "3" blink pattern its usualy a sign that the convergnce hsa failed. When this happens the tV will commonly shut down. You will need to call in a repair shp or get the parts from sites like www.TvRepairKits.com or just google convergence repair kit.

Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.

You have to remove all the cables and screws first...if you not sure how its done you can goto sites like www.TvRepairKits.com that have the parts and instructions to fix this yourself. Its a common failure on projection TV sets.

Please replace 2 chips in tv, these are marked (location number) as IC7001 and IC7002 on circuit board and number written on both big black chips is same that is STK392-110Click PartStore.com to buy 2 chips and get it replaced in tv to solve the issue.Thanks.

This kind of problem occurs due to failure of convergence output chips located on main circuit board of tv and replacement of convergence output chips will hopefully solve your tv problem.
Soldering work is involve to replace these two chips so have local tv repairman for that job if you are not familiar doing so.
Thanks.

Try these companys PTS 1-800-844-7871
Encompass Parts 1-800-638-3328
UED 1-800-648-6657
Go to website at Encompass and type in your model number fior list of Parts/Prices

Dan,
How many times does the light flash? As thats an error code which will indicate which circuit has shut the set down.

OK, turning the manual focus on the tubes will not solve this--I am the right one to help you.

3 d means convergence problem (see typical photos)

Your set should use two of the stk-392-110 chips.

Three things to do here:

1) chips are side by side on metal heat sinks with fins--confirm number printed on the front of them.

2) examine all the light blue resistors in front of them--most will be marked 2.2 and it means they are 2.2 ohm.

3) Light box needs to be removed to safely replace them.

Good news:

Parts on EBAY WILL COST YOU LESS THAN 20 DOLLARS.

I can tell you how to get the light box out for this repair.

I have start to finish, step by step instructions for this repair in this set. They tell everything you will need and how to do the repair.

I will assist you from start to finish with the repair.

I can post instructions here or if I had a email address I can email them to you.

check my stats here, I am expert on this set and will help you save the set and money.

If this information helped you, rate this solution as very helpful as I do this here for free.

Let me know if you want the instructions, they are based on me fixing hundreds of these sets with this problem.

SD TECH

Tv have a problems known as a convergence problems,it is dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?Yes,than the tv have a dead convergence board.The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The tvs shops will cost u like $300-350 for parts and labors.

All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) 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. In some cases the TV will also not show any video. 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



SOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

This is a common problem. Its called a convergence failure. You can get all the parts from www.TvRepairKits.com

Your TV will commonly have one or more of the following symptoms:

• Screen Looks 3D
• Colors wont align
• Screen may look distorted
• No Audio or Video

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Check the site www.TvRepairKits.com - your convergence may have shorted out causing the tv to power off.

Hi,
This is symptom of bad convergence that happens due to failure of convergence output chips in tv, there are two big black chips attached with big aluminum heat sink that will be replaced to solve tv issue.
If you are not familiar with electronics stuff repair then call local tv repairman to replace above said chips to fix the problem.
Hope this will help.
Thanks.

Yes its the bulb. Replace that and the tv will start working again. Lamps are around 200 dollars

Yes, I did try to use the power button on the TV itself. That did not work too. Yes, there is blinking red light too. I searched through several sights and found out that it is an issue with the IC 4511. I could not find a place to buy the chip.


By the way, our local TV dealer asked for $400 to fix this issue. I had already spent $400 on a different repair on this TV, 6 months ago.

Any suggestion/advice would be very helpful. Thank you again for your response.

Thats a convergence issue The PT53WX53 convergence repair kit from www.tvrepairworld.com should solve the issue. The kit contains both ICs the six resistors and the CD with detailed repair instructions.