When I turn on my big screen, I see the input channel (Input 1) in 2 lines: one line with red letters and one with green letters. I supposed my blue light is out, but it might be something else. How much would it cost to fix and/or can I do it myself? Please help!

The issue is that the monitor in not getting the signal. This tells me that the video adapter ( or on board video) has went bad. Try another video card if all your doing is social media and surfing you can pick one up for around 20.00

YOU may have two problems, 3 d picture or letters suggests convergence problem, Tell me more, all inputs have no function?

The more you tell me the better I can help.

I am expert with these sets and know them well.

SD TECH

you may be on the incorrect input channel. look for an input or tv video button and choose each input until u get a picture

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/laura_08254539050d64db

Howdy;
Since you don't have any white lines with the red screen/picture I would say that the red bulb (CRT) is conducting too much. There is an adjustment control for that. The 'sceen' control is behind the speaker cover and service cover. Turn red screen control slightly to the left until you get a good black and white picture.

Good Luck, Big Irish.

First check what color of faint lines comes then reduce Screen Volts in TV of that CRT (tube)
Take off lower front cover, speaker grille of TV, there you will see focus control block that has 6 control knobs, upper 3 knobs are focus adjustment of red-green-blue CRTs and lower 3 knobs are screen volt controls for red-green-blue CRTs. Turn screen volt control knob CCW to reduce screen volts of desired CRT.
Put TV on any free AV input so screen will be dark enough to adjust screen volts.
Thanks.

If its a kp-51hw40 : go to an unused video input and look at the screen---if it is redish in the background with curved faint trace lines you have one of two things wrong; First: the red "screen" control may be set too high. Second: you may have a problem with the RED picture tube.


To try to adjust the RED screen down you have to remove the entire front grill plate on the front of the TV(some have screws on the back on either side that have to be removed---and then you should be able to pop it out. Behind it there is a masonite inspection plate held in with screws----Once you have that off look for a SMALL SQUARE BLACK PLASTIC BLOCK; it has 6 black adjustable controls---you have to use a flashlight and look carefully---one row left to right will be marked FOCUS--DON'T TOUCH THOSE---THE OTHER ROW left to right will be marked SCREEN; if you look carefully you will see marked by each r (red) g (Green) b (blue)
you want to locate the RED SCREEN CONTROL.

WITH the set still on a blank video input where you can see it clearly turn the RED Screen Control to the left until the lines and red tint go away---do this slowly and make sure you are adjusting the RED screen--not the FOCUS.


IF this has been helpful give me a vote here as I do this for free; yesterday I adjusted one of these in a home that was blue with the faint lines---about 15 minute job for me.

if you have questions or need help:

[email protected]

The red, blue and green RCA hook up is just video. You must also use the red and white pair of RCA jacks for the audio. You can usually find the audio red and white jacks right below the video red, blue and green RCA jacks. Get yourself an audio RCA cord with the red and white connectors and run that from your video device audio output to the audio input of the TV that corresponds with the video input of the TV. An example would be if the red, blue and green are on the "Video 1" input of your TV you will find the red and white audio input for "Video 1" right below or right next to the video inputs.

The red, blue and green video jacks are called "component video" and they only have a video signal for high definition video, so you must also run a separate audio line for it. The same holds true for the yellow video RCA connector, that one is called "composite video" and it also has only a video signal with no audio.

I hope this helps, if so a "FixYa!" rating would be very much appreciated.

If you need more help just post your concerns right here onthis thread.

Dave

Do you have the composite cables(red, blue, green) hooked up too the back?

Your blue crt has a short - you can verify this by unplugging the socket from the blue crt and powering up the set and you should see a yellowish looking picture with just the red and green crt's operating. You can try turning down the screen control pot (B) for blue with the blue crt on (just to the point where you no longer see retrace lines in the picture on a blank input)Sony has had a lot of problems with the crt's on these models and sooner or later all the crt's will fail - For a permanent repair all must be changed.

It might depend on the type of input. VCR often use A/V or component cables. if you are using AV (red, white, yellow) make sure they are plugged into the right input. if plugging in to a component (white, red, green, blue, red) make sure the yellow plug goes into the green input. If plugging in component make sure your red wires are not backwards. There should be a white and red together (these are the audio) and a green blue red together (these are video)