Question about JVC AV27F476 27" TV

1 Answer

I have a JVC television and it periodically turns from color to black & white. Sometimes it returns to color on it's own and sometimes you have to hit the side of the TV and it will come back that way.

Posted by on

  • stevenhippen Feb 14, 2010

    Thanks! Will post how it went after I work on it. Very good directions and easy to understand!



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,476 Answers

This is a common problem when electronics get older. You have a bad solder joint on the video IC. If you can solder you probably can fix this. Unplug the set. Remove the back. Remove the main board. Looking at the main board find the IC that has a small shiny metal can which is flat on two sides with rounded ends about 1/4 inch thick. Usually the boards are marked as to what parts do. If you see an area marked video that would be the best place to look. The IC will be relatively large. Probably about 64 pins. Should have a number on the top which begins with TDA*********. You will need a soldering iron of about 35 watts with a good conical tip with a small point. Once you locate the IC inspect it with magnification. You will probably see hairline cracks around the leads which go through the board. Resolder all the leads being careful not to bridge any pins. If you do happen to bridge any remove the solder with solder wick and resolder. Look at a other leads in this area and resolder any suspicious connections. If you have the time just resolder all components in this area. When you are sure you have all the bad connections reassemble unit and test. If all went well you should have a reliable unit. If the problem persists resolder all connections on the board. After that if the problem persists replace the TDA******* IC. This should solve your problem. Let me know how this works out or if you need anymore assistance.


Thanks for using FixYa

Posted on Feb 14, 2010


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

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


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Ocasionally, after the TV has been on for a while, the red color just disappears leaving the picture with a pronounced yellow tint to the colors.

First check all your input cables at both the source & the TV. try wiggling them at the units to see if problem may be in the cable or possibly in the PCBoard. You may have to replace the MAIN PCBoard. I cannot give you the part# since you didn't give your brand or model#.
To locate the part# you might go on line to the manufactures support site.

May 14, 2015 | Televison & Video

1 Answer

Why can't I get a color picture when using the component connection to my JVC BC50R LED TV?

Because your component input typically can not handle RGB, or CMYK color palets. So you end up with a black and white, or sometimes, yellow and black, image.

Jul 13, 2014 | Nintendo Wii Console

1 Answer

My Coby LEDTV 1926 blinks red, green, blue, white, and black. Is there anyway to fix this?

Sorry I can't help, but mine does the same thing sometimes. It'll work fine for awhile, then no picture, but goes crazy and flashes one color at a time across the whole display, very brightly. I have it connected to RCA inputs, so I don't know if it would happen using the antenna input, but based on your experience, I suspect it would. I never got around to calling tech support, and my return period ends in two days, so it's going back to the store tomorrow.

Oct 30, 2011 | Coby Televison & Video

1 Answer

My sony 29'' color tv turned black and white.color sometimes flash on the and sound is normal.pls help

     If your TV colors get black and white with flickering then there must be a problem of cold soldering(Loosing) and it can be remove from resold, Resold in video section and problem will be solved.

Jan 14, 2010 | Sony Televison & Video

1 Answer


there will be 2 convergence ICs that you can access from the front. take the grill off in front(screws behind door and on side in back of tv)and take the panel off. then the board right in the front with the black heat sinks is the convergence power board. take the board out or position it comfortably and replace the 2 large ICs(stk392-110) and any burnt resistors you can see. after fininshed check alignment in the regular tv menu.

Feb 18, 2008 | JVC AV-48WP74 48" Rear Projection...

1 Answer


see the back side of the cabinet for main screws, open them to get inside the cabinet
there you can find the main curcit board.. there look for bad solder joints

good luck

Feb 08, 2008 | Toshiba 55H70 55" Rear Projection...

2 Answers


your tv need a reheat.reheat from video chroma to crt board

Oct 16, 2007 | JVC AV-27530 27" TV

1 Answer

Audio ok, but Video goes from color to black.

the tv turns on fine, but after 5 - 30 min or so, "sometimes MORE " the picture all of a sudden go's black. Sound is ok it is 100% loose contact problem. 1 please check for any connector or print for loose. 2 in signal processor ic there might be loose. remember there is no component failure.

Sep 24, 2007 | JVC AV-32D305 32" TV

3 Answers

Solid vertical line on JVC 42WV74

umm trying using it more, i had the same exact problem and we started using it more and more it has recently gone away.Check the wires as well (plug them out and back in)

Nov 09, 2006 | JVC PD-42WV74 42 in. Plasma EDTV

Not finding what you are looking for?
JVC AV27F476 27" TV Logo

Related Topics:

36 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75970 Answers

Jaime Hernandez

Level 3 Expert

2337 Answers

Steve Allison
Steve Allison

Level 3 Expert

5569 Answers

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

Answer questions

Manuals & User Guides