Question about Panasonic PT-47WX53 47" Rear Projection HDTV
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!
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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Posted on Jan 02, 2017
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