Question about Panasonic PT-47WX53 47" Rear Projection HDTV

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Repost last comment on pt-47wx53g problem

Can you repost your last comment? I'm still trying to figure out how the fixya system works. I think you posted another comment after the one about the a-board check points, but I can't see it. Some other "solution" is the only thing I can see and I don't know how to make it go away because its completely useless. Thanks for your help so far!

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  • Steven Crawford
    Steven Crawford Dec 03, 2008

    Thanks I'll give it a go tonight and see if I make progress. Not sure how you get paid on this thing, but I'm quite sure I need to "accept" your solution to my original problem. Can't do that until you post something else to it. Thanks!

  • Steven Crawford
    Steven Crawford Dec 03, 2008

    I'll check the signal boards too, but switching inputs doesnt improve anything. Most don't even show the vertical bar. Maybe only 1 does that and I have no clue which one it is. I'll research that further also.

  • Steven Crawford
    Steven Crawford Dec 03, 2008

    Also Page 44 in the service manual has flowcharts for entering the service mode etc. How can I do that if I can't see what's displayed on the screen?

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  • Panasonic Master
  • 19,396 Answers

Hi, I post here my last comment, follow the diagram at page 44, leave the checkup at page 16, for some of the test you need raster, and the TV is in protection mode now.
From protection mode follow troubleshooting diagrams, I think is page 44/45.
There are many faulty component that can give you blank screen with no raster, the strange things is that the TV stays on, has sound and is not on protect.

Test also the sygnal boards (the ones with the AV connectors) and see if it makes any difference switching the signal to a different input, this TV has several ICs that manage the video signal, testing blindly will give no help. Follow the diagrams on manual.


I think the following was my last comment:
-----------------------------------------------------------------

You need to follow the troubleshooting charts at page 44 of user manual.
(download the service manual here)

Regarding the jungle chip, that is just a familiar name for the main computer CPU, service manuals rarely call it Jungle chip. Your jungle Chip is the main processor, IC4511, be careful handling the component arount the IC4511, some IC in there is sensible to static charges in your hands, better to keep fingers away.

In your case I would start testing following the diagram at page 44 of SM. I will also test the pico fuses at the base of convergence ICs, if the STKs had been replaced
That is what you do when the nature of the problem is not clear.

Since there is no protection mode on, the fault
can concern IC3001 and IC3002 that are vidio processors, and other parts involved.
If at any point you get the led on, and TV going in protect mode, with a flashing led, that is a step forward, means that the jungle IC (The IC4511) had detected the fault.

Start testing following the procedure at page 44, or same page on your version of service manual.


(download the service manual here)



Posted on Dec 03, 2008

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