Question about Philips 26MF231D 26 in. LCD Television

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Picture changes from color to black & white after 5 minutes

This started happening on Jan 1 after our Cable had been out for 2 days in an ice storm. It's not the cable-it is B&W on the DVD, too. When turned on, the pic is color, then after about 5 minutes, it changes to B&W and stays B&W for the rest of the time it's on.

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Re: picture changes from color to black & white after 5...

This is probably a fault in the colour demodulator circuits. You would have to give the set to a properly equiped and experienced tech to service this for you.

Jerry G.

Posted on Apr 12, 2008

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TV Will not power on


May 28, 2015 | Flat Panel Televisions



Viewing the Self Check Diagnostic List
1. TV must be in standby mode. (Power off).
2. Press the following buttons on the Remote Commander within a second of each other:DISPLAY > Channel 5 > Volume - > TV POWER .
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a "0".
NOTE: If the Service Menu display text is not completely visible, press the Menu HOME button on the Remote Commander to refresh the display.
3. To exit Self Check display, turn the power off. Press [Menu] Exit.
Clearing the Self Check Diagnostic List
1. In Service Mode, press the Channel 8 Channel 0 .

RESETTING TO FACTORY DEFAULTSUse the following instructions to restore the User Controls and
Channel Memory settings to the preset factory conditions.1. While holding down the UP ARROW on the Remote Commander, press the POWER button on the right side of the set.The set restarts and displays the initial setup screen. This may take several minutes.
White Balance adjustment
1. Allow approximately 30 minutes for the set to warm up before proceeding with the white balance adjustment.
2. Connect the signal source to the 3 terminals of the Component In input (Y/Pb/Pr).
3. Set the Picture Mode to "VIVID" in the user menu.
4. Select the Component In input.
5. Open the Factory Service Menu (see section 3-1.) and select "Service Alignments Menu".
6. Set "White Point Red", "White Point Green", "White Point Blue" and "Black Level Offset Red", "Black Level Offset
Green", "Black Level Offset Blue" to average values .
"Cool " White Balance Adjustment
1. Select "COOL" from Color Tone in Service Alignments Menu.
2. Input 70IRE full white pattern signal into Component In.
3. Adjust "White Point Red", "White Point Green", "White Point Blue" in Service Alignments Menu if needed.
4. Input 25IRE full white pattern signal into Component In.
5. Adjust "Black Level Offset Red", "Black Level Offset Green", "Black Level Offset Blue" in Service Alignments Menu if needed.
6. Repeat steps 2 to 5 to achieve desired White Balance.


on Jun 30, 2015 | Sony Bravia KDL-26L5000 26 in. LCD HDTV

1 Answer

I have a 2005, 42" toshiba LCD model 42DPC85 that when we turn it on everything is good except the whole screen is black but imediatly the colors dot by dot start making the black disappear, it only took...

You need a new DLP chip. The chip has little mirrors that are black on one side and white on the other side. When the chip wears out , your screen will turn white one dot at a time or black one dot at a time or they may just all stick shut at once. Since your screen is black, all your mirrors are closed. You can buy the chip from and they have a video of how to replace the chip so you can do it yourself. It takes about 1 1/2 hours. The chip is about $160. To have this service done for you is about $200. Do it yourself and save the money. Your tv will be just like new again. Just make sure the chip is in perfectly level or when you turn your tv back on, your picture will be slanted. you won't notice it on the picture itself but words on the screen or scrolling messages and the menu will be slanted.

Feb 10, 2014 | Toshiba Flat Panel Televisions

1 Answer

I hooked up my cable box up to my sceptre tv and it had sounds but the picture is black and white I even went and bought the blue and green cords but still only black and white

With the blue/green/red cords (Component) you need to get a very good bright light on the connectors so you get the plugged into the correct COMPONENT connectors on the TV. Note, there are white and red AUDIO plugs right near the COMPONENT input so you need to be VERY careful. If you get it wrong, the colors on screen are often off and even black&white.

How is your cable box connected to the TV? Screw on "COAXIAL", Yellow, Red, White "RCA", single flat connector "HDMI" or 5 colored plugs 2 X Red, 1 X White, 1 X Blue, 1 X Green "COMPONENT"

Jan 08, 2014 | Flat Panel Televisions

1 Answer

Sanyo dp26648 has sound, but has vertical lines w/picture popping in periodically.

change your device cables or try to put at a pc to check if isworking your pc

Dec 15, 2013 | Sanyo DP26648-R 26 in. LCD TV

1 Answer

The DP26649 model TV has three inputs; video one (which is fine and has all color and everything), video 2 (if you plug them in certain ones the best i can get is full sound and all but its black and...

OK, here is the breakdown on whet you are doing wrong.

Video 1 - Composite -
Video - Yellow
White - Audio In - Right
Red - Audio in - Left

Video 2 - Components - HD - RGB = Red, Green, Blue
Video -
Red - Red Colors
Green - Green Colors
Blue - Blue Colors
White - Audio In - Right
Red - Audio in - Left

Your GameCube will only work on Video 1, unless you buy an HD (Component cable). You will need to buy HD cables for your device connected to Video 1 to work on video 2. I will assume it is a DVD player. This is a high definition cable to produce a better picture. Let me know if you do not completely understand

In case of a problem or clarification or my solution was insufficient, don't hesitate to post me a reply.

If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Jun 06, 2011 | Flat Panel Televisions

1 Answer

Only one channel going to b/w

Not the tv,it the brocasting incoming signal cable have a slice matalic contacting to that procise prequencies problems for that channel.Take another tv used it,with that incoming signal for that channel for a few days.See,if have a same problems have happen to another tv?Yes,than call the Cables,Dishes or Telicoms compannies,change that section of the incoming of broscasting signal cable line.Not,than take a piece of sand paper about 1000 grits,rub the input metal pin a few times,to have it better contact.

Jul 20, 2010 | Jwin Flat Panel Televisions

2 Answers

I need to know where to plug in my connectors for my cable box. I have two red ones and one blue one I can't find the right holes to plug them in. I have a green one and white one fixed so I have a black...

This would be 5 pins, red-white is for audio and rest of 3 pins red-green-blue for video signal, it calls component video.
Find out red-green-blue jacks at back of TV that would be label as Y, Yr, Yb
Plug each pin in same color to get color picture.

Jan 08, 2010 | Proscan 32LA30Q Television

1 Answer

There is sound but no picture and there is no response when using the control buttons on side of tv or the remote. I turn the tv on and change channels thru Comcast cable.

Talked to a Westinghouse tech and told to unplug for about 3-5 minutes, then re-plug. It's like having to re-boot your computer when it goes down or starts acting wacky. It worked, I got picture. Says it could happen again, maybe 1-2 times a year is o.k., if it starts to happen every few weeks, then it's something more.

Oct 14, 2009 | Westinghouse LTV-37w2 HDTV

2 Answers

Picture settings

Colorimetre HCFR software
AVC HD 709 calibration disk
Spyder2 colorimeter (I know most prefer the Eye-One meters, but the Spyder2 was available from my job at no cost)

Here are the settings:

PS3 Blu-Ray player

Output Format (HDMI): Y Pb/Cb Pr/Cr (important!!! NOT RGB output)
BD 1080p 24hz Output (HDMI): On (this TV can reproduce video at 48hz for accurate 2:2 pulldown)
Y Pb/Cb Pr/Cr Super White (HDMI): On (not sure if this matters)

42LG50 Settings

Aspect Ratio: Set By Program (Personal Preference)
Picture Mode: Expert 1
Backlight: 50 (Personal Preference)
Contrast: 54
Brightness: 54
Sharpness: 40 (Personal Preference)
Color: 50
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 10 Point IRE

10 (-3,8,-16)
20 (15,24,-21)
30 (20,36,-22)
40 (3,19,-40)
50 (8,34,-41)
60 (10,50,-20)
70 (-5,50,-8)
80 (-16,50,18
90 (-14,50,30)
100 (-22,38,21)

Red Color: -3
Red Tint: 0
Green Color: 10
Green Tint: 0
Blue Color: 14
Blue Tint: 0
Yellow Color: 0
Yellow Tint: 1
Cyan Color: -11
Cyan Tint: 0
Magenta Color: 0
Magenta Tint: -2

Take time to get used to the settings, you may think the screen looks dull at first. The truth is most people have way too much contrast on their TVs.
These settings will also work for Cable or Dish hookups, in which case you may change the Noise Reduction option to Medium to reduce signal noise.



Backlight: 65
Contrast: 55
Brightness: 45
Sharpness: 50
Color: 45
Tint: 0

Fresh Contrast: Off
Noise Reduction: Off
Gamma: Medium
Black Level: Low
Real Cinema: On

White Balance: Warm
Method: 2 Point

Red Color: 3
Red Tint: 0
Green Color: 9
Green Tint: 2
Blue Color: -1
Blue Tint: 0
Yellow Color: 6
Yellow Tint: 5
Cyan Color: -1
Cyan Tint: 1
Magenta Color: 2
Magenta Tint: -1

Sep 15, 2008 | LG 42LG50 42 in. LCD HDTV

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