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RCA F27442tx51 dead but making high pitch noise

Nothing comes on just hi pitch noise

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Re: RCA F27442tx51 dead but making high pitch noise

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. 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.

Eng Don

Posted on Feb 17, 2008

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