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DishTV Hum from TV on some (especially Red and Blue) colours

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  • Roger Brown
    Roger Brown Apr 23, 2014

    Problem solved - thankyou everybody. Resolved by replacement unit.

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  • 124 Answers

Check ptc coil
check video section

Posted on Apr 29, 2014


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6ya6ya
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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.

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1 Answer

ShubhangiWe try to connect CD player with Samsung LCD TV. CD Player is having Three Component Yellow, Red,White. It dont have Blue and green components.What to do ???


Hi, Component input connectors use the colour convention
Green = Y (luminance signal)
Red = Pr or Cr (Red colour difference signal)
Blue = Pb or Cb (Blue colour diffrence signal)

Composite input connectors use the colour convention
Yellow = CVBS (composite video, blanking, sync)
Red = Audio Right
White = Audio Left

for compatibility both units will need to have matching colours. note the component inputs do not have audio and as such will also have a set of red & white connectors for use with the audio signals too ( rule of thumb Component = 5 connectors, composite=3 connectors)

Sep 23, 2010 | Samsung Televison & Video

1 Answer

The people are blue and we have no option for changing the colour


the component video cables are switched around. there are 3 colors for video - green, blue and red
two for sound - white and red

make sure you didn't swap the red cables, or swap the blue and red, this is most likely the cause of your issue, check on both the sat box and on the tv

let me know if you require further assistance

Jul 11, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

When using component cables(red, green, blue )


The series of the cable should go green red blue into the back. if you put the green in the red and the red into the green it give the TV a red base to go off of for the picture so everything is red. The reason the green cable won't is because it transmits a black and white picture which allows it a nice base to add the green and red to.

Feb 24, 2010 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

Problem with a colour display on Hisense tv


If your picures are all purple it means that the green colour is missing. TV colour is made up by mixing Red, Green & Blue. Removing Green leaving Red & Blue makes purple. Study the green colour circuit for a fault and confirm that the green gun inside the tube is working.

Aug 31, 2009 | Hitachi 60SBX78B 60" Rear Projection...

1 Answer

Dvd playing blue picture


if it is hooked up with componant, thats the red blue green cables for video, and red white for audio, then you probabily eather dont have the red pluged all the way in, or you have the red audio, and red video---reversed, make sure to check them on the dvd player, and on the tv, if there correct, try using the composit input, that is the yellow red and white

Jan 11, 2009 | Samsung Televison & Video

1 Answer

Looking for manual for ''nec n-3480'' TV, missing power cord


Colour code Standard wire colours for flexible cable
Such as Extension cords, power (line) cords and lamp cords World Region, country
or other entity(ies) Live Neutral Protective earth/ground EU, Australia & South Africa (IEC 60446) brown blue green & yellow Australia & New Zealand (AS/NZS 3000:2000 3.8.1) red black green/yellow United States and Canada black (brass) white (silver) green (green) Standard wire colours for fixed cable
(In or behind the wall wiring cables) Region Live Neutral Protective earth/ground EU (IEC 60446) including UK from 31 March 2004 brown blue green & yellow Australia and South Africa red black green & yellow (core is usually bare and should be sleeved at terminations) United States and Canada black, red, blue(brass) white (silver) green (green)
or bare copper wire Note: the colours in this table represent the most common and preferred standard colours for single phase wiring however others may be in use, especially in older installations.

Nov 19, 2008 | Televison & Video

1 Answer

Abnormal colour in aiwa tv ic noTA8759BN


You need to use Aiwa Service Remote to enter in service mode and adjust service data for red and Blue drive of CRT.
Do you have that remote and service data reference book of Aiwa tv ?

Oct 07, 2008 | Aiwa TV-S2011 20"

1 Answer

Bush RFT TV


The picture tube of the tv has 3 color in CRT Red, Green, Blue. The red cathodeof tv set has no function, its either the resistor become higt resistance, that why u need a repairman to replace it.

Apr 10, 2008 | Televison & Video

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