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Audio Video Tech
Audio Video Tech, Technician
Category: TV
Satisfied Customers: 98
Experience:  25+ years as Electronics Repair Technician
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part number for Horizontal Output transistor for RCA 27v414tyx3,

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part number for Horizontal Output transistor for RCA 27v414tyx3, chassis atc010a, please.
Also, recommendation for online source for part?

Greetings and thank you for posting at JustAnswer! I will be glad to help you with your question. Please keep in mind that there are dangerous voltages inside a TV and some components hold a charge even when the TV is unplugged.


The first thing I would recommend would be to disassemble the set and see if Q405 is shorted using a multimeter and testing between the 3 legs of the transistor. You should get nearly a short between the base and emitter, but not the collector. If it is shorted, then you can feel pretty confident that replacing the Transistor and Flyback will fix the problem. Otherwise, if the transistor is not shorted, I would suspect one of the folowing common problems:


R539, R529 and R519




Anyway, here are the part numbers you're looking for:

Horizontal Output Transistor location # XXXXX part # XXXXX

Flyback Transformer location # XXXXX part # XXXXX


Based on my research the transistor subs to a 274762 which can be purchased here:


The Flyback can be purchased here:


Let me know if you have any more questions. Otherwise, if you have found this information valuable, please click Accept! Bonuses and Feedback are also appreciated!





Audio Video Tech and 2 other TV Specialists are ready to help you
Customer: replied 7 years ago.

Thank you!

I am aware of exactly how far across the room the high voltage anode can shock me!

You're welcome! Best of luck with your repair. I hope it's an easy one!


Take care,