Question about RCA D56W20 56" Rear Projection Television

1 Answer

RCA D56W20 no power and whistling

First, thank you for any and all help. I will try to be descriptive

I have an RCA D56W20 tv recent got an electrical burning smell and now when the tv is plugged in I get a power light and a "whistling" sound then shuts down. it will repeat this cycle within a few seconds three times and then nothing. I never actually get any picture. I have read a previous post mentioning the Flyback Transformer and the Transistor-Horizontal. I would like to know if this is the correct assessment and if so. Where could I get pictures of these parts.? to have a better understanding of what needs to be done.

I have not worked on tv's before, but I do work with computer mainboards and have excellent soldering skills. I have taken the rear lower cover off of the unit and can see several boards. I have used great caution not to touch anything at this point as I know it can be very dangerous to actually work on tvs. I have looked up pricing on for the two parts. I can here the "whistle" or "small siren" sound coming from what I believe is the rear far left board. Again any help would be great.

Posted by on

  • mchipser May 11, 2010

    I have tried to email you at with no results.. mikesaiztx gave me this tv. I wanted to go ahead and replace the complete board from
    I when i went to pull the old board i could not get the 2 Transformer cables off the unit.. ( the 2 cables are the Red one and a small black cable that goes into the front of them.. Is there a trick to get these cables off the unit?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,030 Answers

Ok. the FLyback is the large black part on the lower left corner.. has large red wire comeing from it... the HOrizontal.. is the large black transistor right in front on the left side on the largest heat sink..getting these parts are tricky.. you must get some numbers on the part itself..there are three different flybacks.... and the horizontal is ussally 259899 rca part number. Good luck and if you need any more assitance email me at ; I work on alot these chasis

Posted on Dec 10, 2007

  • Willie Howell Feb 08, 2008

    ok so you r going to replace the board? you have a new one?... buy the looks of your picture you do have the units that can remove these cables from the flyback..this is very hard. the black wire you have to pull straight up and firmly. the red one you you slide the boot up and then there is a tiny gromet tpy clip very difficult to remove i break 75 percent of the ones i remove. was thinking since you have a new board did the new board come with the cables? you come better going to the front of tv and pulling the other end off. Sorry my email has changed



1 Suggested Answer

  • 2 Answers

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

A 6ya expert can help you resolve that 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.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

RCA D56W20 The power button turns green, does not blink and then goes dark, no picture and no sound,

this has a problem with power supply section.
when you LCD TV wont start , even if you press the power button , it has a power supply failure, maybe some capacitor ha bloated or change the value, try to watch this if you know how to solder, or even disassemble the back of LCD TV. if not try to call a repair technician. thanks ,, hope this help.........

Sep 05, 2011 | Televison & Video

1 Answer

I have a rca tv d56w20.pero as I can align the convergence

Have you tried a degausser ,Generally CRT's get full of static and build up Guass, and generally get magnetized . A de-guasser will cure this. if this does not work , get back to me .K hope this helps.

Apr 12, 2011 | RCA D56W20 56" Rear Projection Television

1 Answer

I have a 56 inch RCA D56W20 and when i turn it on I can hear the sound, but i can't see any picture.

In menu check the Lamp Hours You may need a new lamp or the lamp has failed

Please rate my help++++Thanks for using FIXYA

Aug 13, 2010 | RCA D56W20 56" Rear Projection Television

1 Answer

RCA D56W20 Screen Removal

you will need a set of star bits or star tip drivers there available at your local hardware store
there are screws that go around the top half of the back of the tv this will take the etcheonson loose so that you can get to the lenses to remove them for cleaning

Nov 08, 2009 | Televison & Video

2 Answers

RCA D56W20-No Power

NO you cannot. Call a good TV Tech and have him trouleshoot that circuit board and replace the RF connector.

Jul 29, 2009 | RCA D56W20 56" Rear Projection Television

1 Answer

Tuner is broke off D56W20

Cost of that board is 352.00 if they are even available First CK 2 fuses thereis one on each of turner small brown rectrangle looking caps/but they arre fuses/ if they are open set will not startup.Also replace IF turner.

Dec 27, 2008 | RCA D56W20 56" Rear Projection Television

1 Answer

RCA D56W20 no power

Opps! Your problem is most likely in the power supply section. No doubt a blown fuse, a diode or two and probably a few resistors. To be sure that you found all the problems you will need to check all the components in the power supply. If you know how to use a DMM have at it, safely of course. First unplug it, if you already haven't done so. Check the fuse for continuity. If you are lucky that may be your only problem, but don't count on it. Look for burned components or burn marks on the circuit board. Don't overlook resistors with large values and replace any components which do not test within the proper parameters. When you are sure that you found all the problems don't plug the unit back in to 220 or you will have to do it all again. Get the appropriate sized 220/120 transformer which means one with a current rating higher than the current draw of the TV. That information should be on the data tag on the rear of the unit. Again, remember safety and Good luck.

Jun 29, 2006 | RCA D56W20 56" Rear Projection Television

Not finding what you are looking for?
RCA D56W20 56" Rear Projection Television Logo

239 people viewed this question

Ask a Question

Usually answered in minutes!

Top RCA Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74999 Answers


Level 3 Expert

905 Answers

matt martin
matt martin

Level 3 Expert

1213 Answers

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

Answer questions

Manuals & User Guides