Blue Haze - not cool

[[email protected]]

Hello all,

I have a set that has a constant blue tint in the picture. When
lowering the 'color' setting I'm not getting a black and white picture
- the blue tint is still there.

The menu does show a yellowish green color (mostly yellow) so I know I
have blue and green colors. Furthermore, while looking at the screen
closely I can see the red phosphorus glowing a little (and I have a
red line moving down the screen). RGB is there... Ruling out the
tube...

From my reading of this link, the problem <i>could</> be that the red

color channel is over excited (for a lack of words..)?
http://www.repairfaq.org/sam/tvfaq.htm#tvoctwts

I have a new TV already, but I would like to figure out what is wrong
with this one - I have a score too settle with it . Any leads or
pointers in what to check or test would be appreciated.

Thanks,

Matt

 

[colin]

Hello all,

I have a set that has a constant blue tint in the picture. When
lowering the 'color' setting I'm not getting a black and white picture
- the blue tint is still there.

The menu does show a yellowish green color (mostly yellow) so I know I
have blue and green colors. Furthermore, while looking at the screen
closely I can see the red phosphorus glowing a little (and I have a
red line moving down the screen). RGB is there... Ruling out the
tube...

Red and green make yellow dont they ?

color channel is over excited (for a lack of words..)?
http://www.repairfaq.org/sam/tvfaq.htm#tvoctwts

sounds like the gain of the blue channel is low, its to weak on bright
colours leaving them yellowish, and too bright on dim colours leaving them
bluey.

I have a new TV already, but I would like to figure out what is wrong
with this one - I have a score too settle with it . Any leads or
pointers in what to check or test would be appreciated.

usualy IME its high value high voltage resistors wich change their value
with age in the anode circuitry and cuase colour changes.
particularly variable resistors. not to mention build up of dust grunge etc
on those parts too. trying to adjust colour settings can be quite time
consuming especially without a colour pattern generator.

Colin =^.^=

 

[James Sweet]

Hello all,

I have a set that has a constant blue tint in the picture. When
lowering the 'color' setting I'm not getting a black and white picture
- the blue tint is still there.

The menu does show a yellowish green color (mostly yellow) so I know I
have blue and green colors. Furthermore, while looking at the screen
closely I can see the red phosphorus glowing a little (and I have a
red line moving down the screen). RGB is there... Ruling out the
tube...

It would sure be helpful if you posted some details on the set, ideally
the brand and model number but at least let us know what type (direct
view, projection, CRT, LCD, etc) this is.

 

[[email protected]]

It would sure be helpful if you posted some details on the set, ideally
the brand and model number but at least let us know what type (direct
view, projection, CRT, LCD, etc) this is.

The set is a GE XS Model # 20GT374. It is a CRT display.

It's been a long time since I've used this set; from what I can
remember
the blue tint would appear - and after turning the tv off for a little
while
it would operate normally after that - perhaps a heat related
issue....

Collin: Yep, red and green make yellow.... I had worked all
night.....


Matt