Question about Panasonic PT-47WX53 47" Rear Projection HDTV
The tv convergence board is dead.Any colors G,B,R don't alignment matches up.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.
Posted on Jul 17, 2010
My pt-47wx53g The screen bows up in the center . Ive center the screen but still have the same problem
Posted on Aug 08, 2010
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Posted on Jan 02, 2017
A service manual won't help you on this and yes it's most likely the convergence amps. That unit takes two stk392-110 Sanyo amps. You can substitue with stk392-150's or 180's also... Personally I'd get them from acme sales in florida along with any solder, de-soldering braid, heat sink compound and other supplies you'll need for the job. Acme, because you are assured of getting originals not some chineese knock-offs.
I'd suggest a package of 1.8 ohm/2w resistors, looks like that's what this unit uses in the yoke return circuit and they commonly have failed, and likely the cause for the amp failure. You might also take a meter to any picos in the circuit. F850, 851, 852 and see if any of them are open. If the amp opened you're okay, but if it went to ground it may have opened a fuse.
I will send the manual via Pando - so if you don't already have Pando go there first and download their free program.
Posted on Jan 17, 2009
The panasonic rear projection convergence repair kit #2 is available for your model at the following link under convergence repair kits which has the ICs and resistors plus detailed instructions.
Posted on Mar 14, 2009
The problem is in the convergence system which can also cause the tv to not power up or intermittently turn on and off. About 50% of them are bad connections on the convergence power pacs. The convergence power pacs are easily located by the large heat syncs associated with them. The digital control board is located very close to the power pacs. Remove the circuit board housing the heat syncs and using high magnification look for rings around the pins of the convergence power pacs on the foil side of the board. Re-soldering up all the cracked solder joints in the convergence system including the digital control board should solve the problem.
If there are no cracked solder joints in the convergence system, or if repairing the connections does not restore the unit, the power pacs will have to be replaced. Ensure that you apply heat sync compound on the backs of power pacs or they won't last.
After replacing the power pacs, check all of the precision resistors for burn marks or detolerancing and replace as necessary. Next, although rare check the fuse links to the power pacs. This should complete the repair process unless there is some other atypical problem which is beyond the scope of this discussion.
Posted on Apr 28, 2009
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This set uses two Stk-392-110 convergence IC chips; both need to be replaced along with any of the 2.2. ohm light blue resistors around them; a bad resistor will be white in the middle; You can buy both for less than 13 dollars plus shipping on Ebay.
The chips are located on metal heat sinks with fins and are side by side. They are black(about 2 inches wide by 1 1/2 tall) and should have the STK-392-110 number printed on them in white.
Depending on your level of skill at this kind of work you may be able to do it yourself---if you need step by step instructions contact me---I have them in Microsoft word---start to finish repair including what you will need to do it.
If you are not able to do the repair yourself now is the slow time of year for TV repair shops----It should be fixable right in your home and the repair takes about an hour--I have done hundreds of these sets--some shops charge 300-400 but I do lots of them for 200-250 total cost. Make sure whoever you get changes BOTH of the chips!
Shop around and if they say "needs to go to shop" keep looking; any good tech can do this right in your home.
I do this here for free so if this helps you give me a vote here. If you need direct help contact me.
Posted on Aug 27, 2009
The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.
Posted on Dec 02, 2009
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