Question about RCA F27442 27" TV

1 Answer

Tv problem i was washing tv when the tv go off. the tv give me a whinning sounds. no picture nothing.i checked the horizontal o/p transistor which it's located near the flyback on a heatsink which I suspect it's shorted & i found it shorting so i change it with another one but the same problem happened again.tell me what to do !

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 398 Answers

The F27442 uses the CTC203 series chassis and that symptom is very common. If the horizontal output is shorted you MUST resolder the coil in series with the base of that transistor and the pins of the small horizontal drive transformer. When they have been properly resoldered you can put in a new original horizontal output transistor. If the output transistor shorts out again then your flyback (high voltage) transformer is shorted and needs to be replaced.

Posted on Aug 09, 2007

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Sound, no picture, Red LED 4 flashes


Hello Thanshar, Hi, you TV has sound, but no picture. this could be several things, and let us add the red led flash. In my analysis, no picture means no high voltage is reaching the picture tube. this could be due to a bad Horizontal output transistor, and/or a bad flyback transformer. This bad transistor is causing an overload to the power supply section, causing the 4 led flash to blink. Now i want to know if you want to do this service or get professional help. if you decide to do this by yourself, this needs to be performed: the Horizontal output transistor must be checked for short, the horizontal flyback transformer needs to be tested, the deflection yoke also needs to be checked, especially to horizontal coil.

Oct 09, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

1 Answer

TV made a couple of loud snapping sounds and picture went out but still had sound. I unplugged the TV and plugged it back in now there is nothing. There's a "fuse"-(NL8001) that glows for a second then...


good day friend. check for an open resistor with high wattage and low resistance. explain how that nl8001 looks. does it have colored bands on it. give me a description of it. does it look burned. check your dc voltage on your main filter cap. it should be between 150v to 160ish v look in the horizontal section. check the horizontal output transistor, to see if there is about the same voltage as the main filter cap. thank you and please give me a positive rate.

Nov 07, 2009 | Sony KP-53HS10 TV

1 Answer

Proview 32' without picture or sound


hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
rate me

Jul 07, 2009 | Proview PA-32JK1A 32 in. LCD Television

1 Answer

No sound


hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
rate me

May 24, 2009 | Philips Magnavox 27MS343S 27" TV

1 Answer

27 inch tube tv won't stay on


You have a problem is in your horizontal section which also is part of your power supply. The high pitched whine is from the Intergrated High voltage transformer (also called the flyback transformer). This sound occurs when the freuency of the transformer changes and or the voltage gets too high. The click occurs as a result of the drawing of excessive current by the HOT Horizontal output transistor. This is repairable, but requires the correct equipment and a schematic.

Sep 19, 2007 | Philips Magnavox 27MS343S 27" 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

1 Answer

No power even standby LED..


This is like a car running without a driver,the horizonatl output transistor has the voltage it needs but it does not have horizontal drive signal applied to the base of the horizonatl driver transistor,the driver transistor should have a signal coming from the signal processor where the signal is generated just to get give it to the driver this driver then it gives it to the output to energize the flyback and light up the picture tube and generate a few other supplies,158 volts are there because the output is not turn on,try measuring voltage somewere else in the set and not at the collector of the output,there is a b+supply that goes to the signal processor(8 to 12 volts),check to see if you have this voltage,I couldn't tell you the pins in the siganl processor IC without squematic,It seems you know your way around tv service but be careful when checking voltages.Let Us know if you need more information.

Oct 10, 2006 | Samsung TXJ2067 20" TV

1 Answer

Tv wont turn on


The sound can be called screaming from the power supply,it senses a short and creates a frequency you can hear,the set has a problem and it needs to be repaired,I will check the horizontal out put transistor for a short,sometimes it goes bad without a reason and sometimes the high voltage transformer is also bad and both have to be replaced but first the transistor only if it goes bad again then you replaced the transformer too.Seek assistance from a servicer if you are not too familiar with tv service,it can be dangerous.

Oct 02, 2006 | Emerson EWC1903 19 in. TV/VCR Combo

Not finding what you are looking for?
RCA F27442 27" TV Logo

Related Topics:

113 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75990 Answers

jason

Level 3 Expert

905 Answers

Steve Allison
Steve Allison

Level 3 Expert

5569 Answers

Are you a RCA Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...