Colour problems on TV

It might be due to picture tube problem... As its too old, the picture tube might be weak and hence you might get colors at the edges.. Better replace the picture tube with a new one to solve this problem

The problem is AV cables or connectors on the TV, try to replace the connector shouldwork

try dusting out the inside, or maybe using a vaccum hose to get all the dust out.

Try moving speakers away from the TV.

This may be a mechanical or electronic problem that is dealing with the sync of the colour wheel. There is basicly no colour lock. This may be the replacement of the associated circuit board, or the motor assembly or the colour wheel.

The link below is describing about how DLP technology works. They are relating to a front projection type. With the rear screen type, the basic technology is very much the same for decoding the pictures from the TV signal.

http://www.hometheaterhifi.com/volume_9_1/plus-piano-projector-3-2002.html


Jerry G.

replase the part called P T C .

actually your tv set was placed near object produced magnet especially speakers, used magnet, small one to de-gauss or just like cleaning the the tv screen untill impurity colors gone. need my [email protected]

Your CRT (Picture Tube) screen mask has become magnetized. You need to degauss the CRT. Have you moved you TV lately or at any point had speaker sitting next to it? These are two things that can magnetize the screen mask. Well in any event you will need what is called a degaussing coil to demagnetize the CRT.

Here is the degaussing procedure:

Standing about 10 feet from the TV Screen turn on the degaussing coil which is in a vertical position and rotate it in a circular motion walking towards the TV .

Once about .5 to 1 inch from the TV continue to rotate the degaussing coil and the move away from the TV while still rotating the coil.

Once at the point where you began, position  the coil to a horizontal plane and quickly move the coil back about two feet and the turn the coil off.

This will deguass the CRT.

Thank you,
Shuttle83

Was the tv dropped?--try manual de-gaussing.If that does not

work,the problem may be the shadow mask inside CRT or the

yoke is loose and mis-adjusted on the neck of CRT.

use a 10 ins, speaker magnet to front of picture tube degussing color