My TV broke....screen turned yellow..??? (2 Viewers)

[AndrewW]

I've got a 5 year old, direct view, Mitsu 36" TV and the screen all-of-a-sudden turned yellow. For instance, where there should be white, it's yellow. If it should be red, it's red w/ yellow tint. My whole room now has a yellow hue to it and it's making me ill. Does anyone have a clue what went wrong w/ this? It may be a blessing, as I have my eye on a Sony 36" XBR. If it's just a tube or cheap fix I might just get it fixed....thanks!:frowning:

 

[AndrewW]

Well, thanks for nothin' I guess Picked me up a 36XBR800...much improved.

 

[Allan Jayne]

Whites turning yellow and also reds turnning yellow doesn't make sense to me. WHat other color changes did hyou observe?

If white turns yellow that indicates a blue weakness. If red turns yellowish that means an overpowering green.

VIdeo hints:
http://members.aol.com/ajaynejr/video.htm

 

[AndrewW]

Allen, thanks for the reply. It's like the whole screen has a yellowish/greenish tint to it; like you're watching it through green glasses...pretty weird stuff. I'm hoping to have it fixed, as this was $1,500 new.

 

[Jim Doolittle]

Sounds like your blue gun failed.

 

[Allan Jayne]

If you use a magnifying glass, you can see if there is a complete lack of blue on the screen.

Once you determine that you need to find out whether the picture tube or the supporting circuitry has failed (if you want to take the effort for a 5 year old TV).

For a direct view set, "gun" refers to a small component in the neck of the picture tube containing a filament that is capable of burning out. If you were to take the back off the TV (careful, high voltage exposed) you might see that there are just two glowing orange dots in the picture tube neck instead of three.

Replacing the picture tube is more expensive on average than replacing one of the circuit boards if the latter had failed instead.

 

[Darryl]

I've got (guess what) a 5 year old Mitsubishi direct view 35" TV. The model number is something like CS35607, don't remember off the top of my head. Anyway, the blue has gone out completely, leaving a yellow or green hue to everything. Sound familiar? But in my case, a few days after the blue went out, the green went out too, so everything was a beautiful shade of red. A couple of days after that the blue came back, giving me a lavendar purplish color.

One thing I noticed is that the bitmaps in the on-screen menus are still full color, including blue and white. This seems to indicate that the tube is just fine, but the circuitry is failing. Do your icons still show up full color?

As long as I'm posting I might as well ask...anybody have a guess what might be wrong, and how much it might cost to fix?

 

[Darryl]

Oh, and let me guess...AndrewW, you got your TV at Ultimate Electronics too? I'm guessing our TVs are brother and sister.

 

[AndrewW]

daryl...sounds like we've got the same set-model #. I got it in SLC somewhere. ACtually, even the volume and other on-screen icons have the same problem.:frowning:

 

[AndrewW]

Daryl...one more thing.......did you end up getting it fixed? What was wrong? Or are you just living w/ it?

Allan, also, great link; bookmarked, thanks!

 

[Allan Jayne]

Darryl: When you mentioned that the blue went out and came back, etc. another possible reason could be poor connections where things plug together (including the socket at the back of the picture tube). Usually such poor connections are cured by unplugging and replugging twice. It is not a bad idea to have a serviceman do this because of nearby high voltage connections.

 

[Darryl]

I haven't gotten it fixed (yet). Since Andrew's icons are messed up too, it probably isn't the same problem as mine.

I hope it's something as simple as a loose internal connection. I'd sure like my TV to last another couple of years, long enough for internal ATSC tuners and digital-cable-ready connections to be standard features.