Question about Panasonic PT-47WX49 47" Rear Projection Television
Can someone help me out here about the diagnostic code 3 flashing red and a pause..Nobody actually knows this code or any codes...Burnt bulb?..Fuses? Is this a trade secret or a scam to have someone have to come out and charge me? Im sorry but Im getting tired of posting"stating" it could be this or maybe that..or maybe I am wrong these codes really dont have any meaning? Please Im asking anyone to set me strait firstname.lastname@example.org
I can tell you that if you first put some flux paste onto the pins of the chips before you remove them, then heat the flux with your solder iron to get a good flow. Then use de-solder braid to remove the solder on all the pins of the chips. Touch each pin to be sure its 100% loose, then the chips will come right out.
My new chips have not arrived yet, but I was told that you can order the chips with the -120 rather then -110 and get chips that are rated to take higher amount of current then the originals.
The 3 flash's of the power led do not necessarily indicate that these chips are your problem---the 3 flash just indicates that the system has gone into safety shut down. Many things can cause this to happen, but most often these STK chips go bad, and start to draw too much current and trigger the safety shut down.
One way to insure that the STK chips are indeed causing the 3 flash issues is to unplug the 3 convergence output lines going to the CRT boards. Do this with the power cord unplugged. Once they are off-line, power up the set. If all is well, the TV should come on and stay on and work just fine----other then the convergence will be completely WAY OFF.
If you see this result, you can be very confident in your STK's are bad and need replaced.
Get your chips from Panasonic or Pioneer if possible, they will cost about $40 each. The $7 thru $10 each off-brand ones are not as good for long-term use (from what I was told by my local tv repair guy).
Hope this is helpful.
Posted on Jun 02, 2008
# flashes in a panasonic means the convergence amps have failed. You will need to replace both convergence ICs numbers STK392-110 you can get replacement ICs at the following link and they include free instalation instructions with pics so you can do the repair yourself and save about 400.00 Heres the link you will need two ICs.
Posted on May 08, 2008
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