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On my Panasonic PT-56TW53, the down left quarter of the screen has a big colour distorsion. Convergence can adjust blue and red, but green is not able to show a straight line. Is tis a mechanical adjstment? Help would be great.
With most rear projections there is usually an alignment to do with the set up with your TV. This is so the red, blue and green projectors align together to give the correct colouring. This sounds to me what may be causing the outlining of the blue. This can also make it seem off colour. Look in the set up menu of the tv and see if you can find this alignment feature. Usually a cross will appear and you move a blue, red, and green cross with the arrows on your remote to align over the original white one.
If this does not work, it may also mean that one of your projectors, that is the red, blue or green one may be failing causing the off colouring. Hopefully this alignment may fix it for you.
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.
Yes, the cooling fluid in the blue and green picture tube assemblies has become contaminated. Thats why the red is predominating. The contaminated growth cannot grow in red light and that is why the red is not affected. The only solution is to have the blue and green tubes pulled and disassembled and cleaned and new fluid installed. This is not a simple job. Most reputable shops charge around $300 to $500 for this repair.
Intermittently displays bright red/green/blue raster then shuts down with led flashing 2, 4 or 5 times
Amazingly this was due to the CRT being faulty !
Red or Green or Blue screen
Check and replace on crt module : D702, D703, D704 (all 1N4148) replace with type 1N4948T
your colour guns (that's what they call the light tubes that produce the 3 main colours, red/green/blue) need to be fixed. One or two of your guns need to have the liquid that protects the lens flushed out. I had the same thing and the repair man came in took the unit apart and removed one of my light guns (blue one) and showed me the dis-coloured liquid. He drained the liquid and added new clear liquid which protects the heating of the gun and everything was perfect again.