Question about Sanyo HT30744 TV

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No color on one channel

There is no color on one channel, i know it is not the channel because i checked it on another tv. what could cause this?

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Re: no color on one channel

Some models of TV's can remember the user settings for each channel programed. Go in to the user menu for the video setup and see if the colour (chroma) is turned down.

Jerry G.

Posted on Apr 19, 2008

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Ilo tv shows no tv signal, I believe that the channels are deleted but don't know how to add the channels back

Here is how to try and get them back if they are available.
On the original TV remote do the following-
1. Press the MENU button
2. Use the channel down button to select channel set
3. Select channel add/delete
4. Press volume up
5. Select channel you want to add by using the channel up/down buttons on remote.
6. When you get to the channel you want use the Volume up button and the color of the channel number should become either blue or green if it is added and it will be red if it is deleted.
7. Repeat until you have added all the channels you feel you are missing.
8. Press MENU button to exit.
If the channels are still available this should get them to return. If not contact you cable provider to see if they have moved some of their channels recently or check their web site for the current channel line up.

Good Luck and please rate this solution....

Jan 08, 2010 | iLO IWT3206 TV

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If your TV is multisystem select correct one (ntsc- secam pal... )

Aug 31, 2008 | JVC AV-32432 32" TV

4 Answers

No color

Does it have a video input? Does it have color when playing a vhs tape or dvd into the video input?

Does the set show the raster lines? Is there any snow showing on the raster?

If the set does not show color with an a/v input either then it is likely the main power supply section feeding the deflection system or the video processing is bad.

RCA sets more than a few years old are not good investments for repairs, unfortunately.

Let me know the answers to the questions above and I can give you a more precise suggestion.
 Good Luck
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Feb 02, 2008 | JVC AV-27S33 27" TV

1 Answer

Black and White Channel

Check the fine tuning for that channel.Adjust + or - accordingly, see what happens?

Oct 02, 2009 | Apex Digital AT2708S 27" TV

1 Answer

When changing channels, sometimes the color is greenish/purple. Return to the previous channel and the color is fine. I've replaced the DVR from the cable company so I'm assuming that the problem is with...

try a dvd into input one on the tv.if this shows
good with no color problems.then call the
cable co.if you have another tv check the signal with that tv.if the cable is good then
suspect the tuner in the tv.

Jul 17, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

No blue color on tv screen

Your welcome ! please comment. Thank you !

May 01, 2009 | Samsung SlimFit TX-S3082WH 30" TV

1 Answer

Have an RCA console, color, 26" screen. Over 30 years old. Hooked up to cable and DVD player. Overnight the color disappeared and reception is black and white. Did color guns go out?

If you can see white, then all the CRTs are functioning. Make sure that the channel is set correctly. If the DVD is sending out channel 3 and the TV is set to channel 4, you will see the picture, but in B&W, Check that first. Let me know if that does not resolve it.


Mar 06, 2009 | RCA Standard (CRT) Televisions

1 Answer

Rainbow screen then powers off

The degausser cricuit may be the fault. The degausser coil may be staying on, and thus forces a shut-down. It is also possible to have a power supply fault that can cause a similair effect.

The set will need shop service.

Jerry G.

Jul 22, 2008 | RCA TruFlat 27F520T 27" TV

1 Answer

Sony tv only loses color on digital cable premium channels

yes it is your tv since the tech ruled out the cable box.

1.possiable bad tv tuner cost of repair is 120.00

2, picture tube causes this sometimes but rear to be tube.

3.I would call a local tv shop and have them come out to look at find out how much they charge for road calls .

4.I like sony tvs i would keep your price around 225.00 for complete fix max

Thanks doctor video

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3 Answers

Picture color

have JVC AV-32F702 TV. It's picture color is very red. unable to adjust colors through menu. Channel numbers are also in red now instead of normal green. any suggestion? please check red color cathode circuit 1 check red output from ic to red cathode ckt 2 check voltage on r output ckt& ic or tr. 3 check loose contact in red cathode ckt 4 check crt base for loose. 5 loose connector 6 chroma ic thanks

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