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replace flyback transformer (same type - equivalent will not work ) - this part's work is to supply voltage to TV TUBE - after 4 years ( 4 to 10 years - depending on usage ) this part becomes weak then in top brand TVs automatically TV senses this deffect & well in advance it shuts off TV to protect other components from getting damaged due to this flyback transformer ........... as on now in your case only flyback transformer is deffective - so replace it as early as possible ....... click below link for more details on how to replace it ...... http://www.fixya.com/support/t10123898-panasonic_ct_36hl43g_tv_just_turned
ACME has FBT with 1yr. warranty on them. 1-800-575-9833 I have Never had any Problems with flybacks from them.21.95 for part their. DO not get the HR fly they have focus and high voltage wires backwards.Most of the high voltage wires you twisted them out from flyback then reinstall in New one.And the button on end of wire is Anode button that connects in picture tube.
Update on finding replacement tripler (Flyback Transformer) for RCA F27442tx51. This is a follow up on my report dated Jan 12 2008. Further investigation revealed the Horizontal drive transistor was also blown. It is a 2SD2578. Internet search turned up ACME ENTERPRISES in Orlando Florida. www.acme-slaes.net. Surprisingly they also sell Flyback Transformers as well as other TV repair parts. The cross reference for the needed Flyback is ACME-2236 FBK. The part number for the transistor is 2SD2578 SANYO TRANSISTOR. The price for the transistor is $2.69. The Flyback is $22.95. Shipping to CA is $6.75 and handling is $1.99. Two days after ordering, the parts were at my front door. The set works now except the picture still goes off after 5 minutes or so and then comes back on, sound still works during the dark period. The original symptoms before it blew out in the middle of the night and started chirping. I now have the set on the bench attempting to find the intermittent part. Stay tuned I'm on the hunt.
First off you gotta tell us whats the right model and make as you have two listed here and both of these flybacks are avail. trough http://www.partstore.com. The parts are not listed online but get the toll free # or leave a message for them to get back to you. Now A flyback is not a user replaceable part for starters. It is soldered in and theres very high voltage inside these sets even after they are unplugged, and its not adviseable to replace a hi-voltage part in a set, unless you know the issues involved with replacing such parts. Good Luck