Question about Panasonic PT-51HX41 51" Rear Projection Television
As the title says. Where the cord comes in from the outlet it then goes to a fuse, if you follow the white line on the circuit board it goes to a little transformer, right after that is a little black box type connection (I'm not sure if it's a relay or a breaker but it looks like it can come out by pushing in the tabs, and there's a second one down the board a ways). Anyway, as I push the power button this black box clicks like it's turning on. After about 5 seconds (with nothing else coming on) it clicks again then everything is dead. Could this be the reason the TV won't work? Is this something I can replace from a part at Radio Shack?? Any help with this would be great!. :)
Bill, I tried replaceing the STK392-110's and still having the 3 flashes and no responce from the TV, although I hear relays clicking. Is there a posibility that it's the R800 Relay or do you sussecpt something else? Thanks in advance.
Posted on Apr 01, 2010
Those are your primary and secondary relays and they are probably not your problem!! In RARE cases R800 will fail causing RI802 to fail (your secondary relay) but I emphasize in RARE cases. The reason they click and then click again is that the shutdown circuit commonly requires them due to some short in a circuit up-line from the B+ and usually I would first suspect the convergence amps.
Your set takes two STK392-110 Sanyo original Ic's and if you have these replaced I think that will solve your problem.. They're located at Ic7001 and Ic7002 on the signal board, screw mounted to a large aluminum heat sink. On replacing them also check all 2.2 ohm 1w feed resistors out front of them and replace any that may have changed in value...
Posted on Feb 03, 2008
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Posted on Jan 02, 2017
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