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I have a dark blue and light green colours on the upper left side of my picture tube. I want to know if there is a problem with my picture tube. Also, if there is a problem with my picture tube how do I fix it. Thanks your for help

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Color Picture Tube get effected with Magnetic waves, please check and remove any thing having magnet inside like speaker etc near your tv.

Posted on Aug 24, 2008

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6ya6ya
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What color is the neg and pos wires to the passanger side speaker in a 99 chevy blazer


Hello, I am assuming it is the rear passenger speaker. Please refer to the list below for the wiring of your aftermarket speaker.

Radio Constant 12v+ Wire: Orange
Radio Switched 12v+ Wire: Dark Green
Radio Ground Wire: Black
Radio Illumination Wire: Gray
Stereo Dimmer Wire: Violet/White
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Feb 13, 2013 | 1999 Chevrolet Blazer

1 Answer

No green and yellow colour


Hello
If you see the picture in yellow colour, means that there is no blue colour output from the video drive section in your tv, Yello is the mixtrure colour of red and green. Green is actualy there. blue colour is absent.
To detect this fault, you must open your tv. Just look in to the video output section, can be located at the picture tube base card, which is plughed into it diretly. See for any loose soldering points there. Check whether transisotors are used for red, green and blue output stages, or an Ic or three seperate Ics are used for this purpose. Anyway, blue catode of your picture tube pin gets a hig voltage, and so the blue emission is absent. You just check the voltages at red,gree and blue catodes, at the respective picture tube pins, which can be taken at picture tube base card. All of these three pin voltages must be somewhat equal to each other. In your case, no voltage at blue cathode will be higher that the other two. Check for the reason. It may be due to an open video output transistor [blue], or an Ic, of one Ic if used for the three colour outputs. Check and replace the same, will rectify your problem. Ok
If you have andy difficulty, get it to me through Fixya. Ok
Gopakumar, India.

Nov 21, 2010 | JVC AV-27230 27" TV

1 Answer

I have seen a problem in my tv is that there is no green colour display in crt. only two colour ( i.e. Red and Blue) or combination may be display. Pl. look into this matter , replay soon


Your problem may related to the green output or driver stage in your tv. Usually green calour is not tranmitted, only blue and red colour informatein are comming from transmitters. Green colour information is regenerated inside the tv by matrix network. If the matrix get damaged no green colour will be displayed. To check first; whether the TV colour picture tube's green gun is right or not. For that you must connect a resistor of value more than 470k 2W, to the green cathode of the picture tube base to earth. The connection should be done causiously, not for a long time. It is advised to do in intermittantly with just touches. When you touch the green cathode with the resistor with one side of it earthed, a green flash must come on the crt. You can do this test for red and blue too. If there is no green flash, or light picture tube may be faulty. It is a very rare case. You must check the volltages of the other two cathodes [red and blue]. The voltage at green cathode must be almost the same as other two.
Just check the green output transistor for open. If it is open, voltage at green cathode will be high. Also check the base voltge of the green output transistor. It should be around 2.5vDC. You can compare the base voltages of the other two transistors with green drive base voltage. If there is no base voltage, the fault should be in the matrix section. It is inside an Ic. Philips usually uses TDA series Ics in chroma section. Check the Ic pin voltages according to service manual and try to rectify the fault. It needs a technical knowledge and skill.

Oct 14, 2010 | Philips Magnavox 27MS343S 27" TV

2 Answers

Hi, just wanted to know if there is a diagram for the head unit. the colours for the left & right speakers in a ve ute?


*Remove drivers side centre console panel
*You'll see a black plug on the "side" of the stereo, this is your speaker outputs and constant 12v+.

Dark Green - / Light Green + = Front Right Speaker
Grey - / Brown + = Front Left Speaker
Light Blue - / Dark Blue + = Rear Right Speaker
Yellow/Red - / Brown + = Rear Right Speaker

Sep 21, 2010 | Car Audio & Video

1 Answer

My picture has far too much red in it. Where do I


there should be 5 or 6 preset on the crt(tube) base 3 of them should adjust red /green blue in the white aera and the other 3 adjust re/ green /blue in the dark aera make these adjustment with the colour turned off.
Sad to say that this is most likley a low crt the blue gun as gone low.

Mar 06, 2010 | Orion1934 19" TV

2 Answers

The colour is off and the conversion


You have a problem with the blue and green tubes having a fungus growing across the face of the tube, thus blocking the light/picture. This will cause the color to be way off and the focus as well. Need to have the fluid changed in blue and green tubes. The red never seems to be affected...must be the red wave lenght inhibits the growth of algee or something. Anyway....That's what you need, not the convergance chip STK's. Trust me on this. T.V. tech. for over 20 years...see this ALL the time. Good luck.

Dec 19, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Mercury cougar


Constant 12V+ Black/Orange Switched 12V+ Yellow/Black Ground Black/Light Green Illumination Light Green Dimmer n/a Amplifier Remote Dark Blue Antenna Right Front Front Speakers 5" x 7" Doors Left Front (+) Orange/Light Green Left Front (-) Light Blue/White Right Front (+) White/Light Green Right Front (-) Dark Green/Orange Rear Speakers 5" x 7" Side Panels Left Rear (+) Pink/Light Green Left Rear (-) Tan/Yellow Right Rear (+) Pink/Light Blue Right Rear (-) Brown/Pink

Sep 28, 2008 | JVC AM FM CD DET FACE CAR STEREO

4 Answers

1998 ford el xr6, need stereo wiring harness colours


You did not specify if you wanted the wiring diagram for the Expedition or the Explorer, so I got you both. Good Luck

1998 Ford Expedition Stereo Wiring
Constant 12V+ White/Purple Switched 12V+ Black/Pink Ground Black/Green Illumination Blue/Black Dimmer n/a Amplifier Remote Blue Antenna Right Front Front Speakers 6" x 8" Doors Left Front (+) Light Blue/White Left Front (-) Orange/Light Green Right Front (+) Dark Green/Orange Right Front (-) White/Light Green Rear Speakers 6" x 8" Rear Doors Left Rear (+) Tan/Yellow Left Rear (-) Gray/Light Blue Right Rear (+) Brown/Pink Right Rear (-) Orange/Red
1998 Ford Explorer Stereo Wiring Constant 12V+ Light Green Switched 12V+ Yellow/Black Ground Black Illumination Light Blue/Red Dimmer n/a Antenna Trigger Orange/Blue Antenna Right Front Front Speakers 5" x 7" Doors Left Front (+) Orange/Light Green Left Front (-) Light Blue/White Right Front (+) Dark Green/Orange Right Front (-) White/Light Green Rear Speakers 5" x 7" Rear Door Left Rear (+) Gray/Light Blue Left Rear (-) Tan/Yellow Right Rear (+) Orange/Red Right Rear (-) Brown/Pink

Feb 22, 2008 | Car Audio & Video

5 Answers

Sony KP-57WS500 57 in. Rear Projection Television


Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.

Jun 05, 2007 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Try # 2... Green Fog


The green gun in your picture tube is set a little too high. If you are experienced in removing the back cover of TV's,etc., you may try to find the drive and/or bias controls either on the circuit board that plugs on to the neck of the picture tube or mounted on the main circuit board of your TV. These controls are usually labeled. If you can find them, locate the green bias or drive control and back it down a little while watching the picture through a mirror. A slight adjustment may correct your problem.tJIS IS CALLED GRAY SCALE ADJUSTMENT. BE CAREFUL THERE ARE SOME HIGH VOLTAGE CIRCUITS NEARBY. WORK WITH ONE HAND AND USE AN INSULATED TOOL TO MAKE ADJUSTMENTS I hope this may help you.AGAIN BE CAREFUL!! Stargazer

Feb 26, 2007 | Toshiba 32HFX71 32" TV

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