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CRT RPTV B&W image composite input

I have a CRT Rear-Projection TV. When I try to input composite video (on any port) it flashes briefly in colour, then the image turns black and white.

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  • LG Master
  • 74,383 Answers

How many times this standby/power light blinks at one time Count it carefully. These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/

Posted on Nov 19, 2013

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6ya6ya
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Posted on Jan 02, 2017

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jerryg50
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SOURCE: lg 32lc2r, only showing picture in black and white

Make sure that the color control level is set to the default or 50% to start with. This should be in the Video menu.

The colour for the tuner and for the encoded base-band video uses a circuit area called the colour demodulator. It is possible that this cirucuit area has failed and needs servicing.

Jerry G.

Posted on Apr 12, 2008

  • 1 Answer

SOURCE: Plasma Tv 42PD580DTA, Black and white screen while viewing DVDs or Video

Hi there,
My sister-in-law has exactly the same problem and is a common one with this unit.
I've spoken to a technician who says that:
1. Hitachi are withdrawing from Australia and there are VERY limited service centres left
2. The problem is a chip on the main board and depending when the TV was made will determine whether the chip is a plu-in or soldered on to the main board - if it's the latter, you'll be up for a main board at around $400
3. He couldn't get the price of the plug-in chip because he couldn't get through to Hitachi.

Cheers

Dave M.

Posted on Apr 28, 2008

SOURCE: Black and white on av channels?

fixed problem by replacing board on control side
part sourced for £85
now all ok

Posted on Jul 10, 2008

cjackHD
  • 71 Answers

SOURCE: Sharp Aquos LC-37D44U only shows B&W images from DVD & VHS source

First thing- why not just use the HDMI instead of standard def cables in the first place? Anyway- If the RCA-video (yellow composite cable) is not producing color, 1 of 2 things may be wrong: 1. You accidentally connected the a/v cables [yellow white and red] to [red green and blue] component inputs or vice versa, or.. 2. Your TV or DVD player is somehow set to the wrong video format. Check the DVD settings for video output format and video connector type. Format should be NTSC, and connector should be composite and/or s-video for the cables you're using.
If this is only happening when connecting the DVD player through the VCR, then check to make sure the same cables connecting the DVD player to the the VCR are also connected to the TV from the VCR.
BTW- if this is just to record DVDs to a VCR, I'll tell you it's not worth it. If your DVD player has an HDMI port, your picture quality will be so much better than if you're watching a VCR copy of one. Your new HDTV will look worse than an old standard def TV. Worse; I'm not kidding.
I hope some of this helps.

Posted on Jun 01, 2009

  • 4234 Answers

SOURCE: Black & White Picture in different input modes

Can you describe the connections please? I suspect that the DVD +/or WII is outputing component video and you have it connnected to composite video. Please diagram the conenctions.

Thanks,
Dan

Posted on Aug 21, 2009

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On every input?? RF (coax),yellow(composite),S-Video and
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Verify model # please......T.

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Convergence amp ic are bad.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hometheatershack.com/forums/manufacturers-service-support/5600-crt-based-rptv-convergence-repairs.html#post43725

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Are you sure that the source is generating a video signal? It is extremely rare for both front and rear Video Input sockets to fail simultaneoisly. from your description, i would suspect the cable connecting the Viseo out of your DVD player / Video Game than the Video Input ports of the TV. If you have another cable, just try again with that. Or, try using the Red to red cable into the Yellow port, using one end at the DVD player and the other at the TV Video Input. If there is image, then it is confirmed that the cable is faulty, and you can get a replacement cable for a few bucks at any Video store.

Mar 20, 2007 | Symphonic ST419E TV

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