Question about RCA F32649 32" TV

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What is an exact replacement for RCA 237470 transistor? I cannot find the RCA part anywhere. The RCA board placement # is Q14401

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  • matt martin
    matt martin Mar 19, 2011

    Look at the original transistor, and give the numbers. For example, 2SD578, 2SC5148, or BUH517, etc. I may be able to cross this number for a replacement. RCA parts are getting very difficult to find. Also, is this a CTC 203 model#?

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  • RCA Master
  • 3,287 Answers

This is the HOT (Horizontal Output Transistor) for your TV. There are several part numbers that can cross over as a replacement. This should be done only if the original RCA part number is no longer available however. I Googled your "RCA 23740" and got result pages with several compatible part numbers from Sony, ISC, etc. Then I clicked "Shopping" on Google's result page and found 3 sources for the exact RCA branded part ranging in price between $6 and $12. If you dug around the regular result pages I'm sure you'd find plenty more sources as well.

A few words of caution: This transistor is associated with the flyback transformer circuit. The flyback transformer is the source for high voltage - and can result in a painful shock or burn if the circuit has not discharged completely before contacting it. Use caution.

I hope this helps & good luck! Please rate my reply - thank you.

Posted on Mar 19, 2011

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1 Answer

I have an RCA 36"


Hi, in most of these RCA TV, we found a common problem with that strange sound.
You need electronics skills to solve this problem. The sound coming from the TV ( back cover), caused by a faulty transformer T14401 location number, part number 241319, also a transistor horizontal output is shorted need be replaced. location Q14401 part number, part number 237470. This is a difficult and you may have to find a tv shop and ask for a previous estimate of money. I hope all this clear in my explanation and if you have further questions, I'll be here to help.

Aug 17, 2011 | RCA F36685 36" TV

1 Answer

My old 32 inch rca f32665 stopped working as we were watching it. no picture or sound and there is a sound coming from the back where the power cord goes in that sounds exactly like a cricket only its a...


The usual cause is a shorted horizontal output transistor. The way this chassis is designed, the supply makes 140 volts which is always on and applied to the transistor. The heavy load on the power supply causes it to make that chirping sound as it keeps trying to start, then shuts down right away.

The h-out is Q14401, RCA part number 237470. A 2SC5148 can replace it.

Jul 31, 2011 | RCA F32665 32" TV

1 Answer

My RCA F32450 is whining as well


Yes + replace the Horiz output transistor = part # 237470.
Then adjust screen control on new IHVT to same position as
original........ + or - a little bit OK. Then reset focus as needed..
Let me know how it goes.....................T.

Aug 19, 2008 | RCA F32450 32" TV

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52 inch RCA rear projection television (premiere edition from 1999)


Circuit Power part # 250587
or T14401 part # 215541 & Q14401 Part # 237470
repair cost $375.00 est

Feb 28, 2008 | RCA P52926 52" Rear Projection Television

1 Answer

Proper grounding point for RCA F32650 TV


Leave set unplugged for a few hours = HV gone or discharge to CRT ground strap........................

Note: Part list.....257805 or ASTI 2078 xformer and
237470 horiz output xistor ( Do not use generic)
transistor must be first quality, no seconds ! !

Nov 25, 2007 | RCA F32650 32" TV

1 Answer

Tv does not turn on.


For F32718YX01...bad.257805 transformer or use ASTI 2078 generic..........................T.

For guest....237470 Transistor shorted AND transformer bad..
replace both.......................What is service #.......?
IF NOT F32718YX01, let me know......................T.

Nov 22, 2007 | RCA F36645 TV

1 Answer

No picture High pitch squeal RCA F36650


Confirm service # from back of set = F36650 YX01..........
Transformer red HV lead attaches to CRT & Horiz output
xistor is on heatsink next to transformer = 2SC5148 .........
Rca part # 257805 or ASTI 2078 and 237470 xistor............
Do not use a generic transistor = name brand only............T.

Please rate this solution..............

Nov 12, 2007 | RCA F36650 36" TV

2 Answers

High Pitched noise returns after new parts installed.


Use first quality OEM or equiv. transistor, RCA 237470 is
least expensive...............T.

Nov 09, 2007 | RCA F36705 36" TV

1 Answer

RCA TV PROBLEM


check the horizontal o/p transistor I suspect it's shorted, find location Q14401, on the board it's marked as q401. it's located near the flyback on a heatsink. if it's bad the rca part number is 242224. good luck

Dec 13, 2006 | RCA F27442 27" TV

2 Answers

Rca f27442


Check for shorted base-collector junction on horizontal output transistor designator Q14401. Also coil L14401 going to base of transistor needs to be desoldered, scrape ends, resoldered. If horizontal transistor is shorted, real possible flyback transformer bad.

Dec 16, 2006 | RCA F27442 27" TV

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