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Re: I have a samsung HCL473W and curved blue lines have...
Try turning down the blue G2 slightly if that doesnt help you will have to trouble shoot the blue crt drive circuit or possibly replace the blue CRT itself.
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Go to a unused video input and examine the screen----if you see blue with slightly curved trace lines the blue screen control for the set is set just a bit too high.
If the lines are slightly curved and stationary on about 2/3 of the screen its either the Blue CRT or the Blue CRT drive board which is having the problem.
Check to see if you can adjust the convergence. If you can't adjust the red and blue in all directions you need to replace the convergence chips and resistors. If you not sure how to check the convergence goto the site www.TvRepairKits.com and goto the Tips section.
I believe you have convergence problem on your rear projector TV. It require to replace may be 2 IC output convergence or the convergence drive, after replace those component you need to readjust convergence which mean you move the RED GREEN BLUE to be 1 on top each other you must have the remote control and service manual to get into the service mode, if you thing you can get those part in your country the service manual I may help you with that, ask your husband if he like to challenge it. I hope that is give you some ideas
Cheers
Check out the Convergence Gallery. If you see the colored outlines or color shading as in the Gallery, you have a convergence problem.
This
requires the replacement of the defective IC or ICs and any damaged or
smoked resistors. Usually there is little alignment required after the
repair. If you play with all the adjustments before the fix, hours may
be spent re-aligning.
Don't monkey with it.
This is a
delicate and difficult repair. If not done by someone with some
electronic repair experience, the TV will likely end up as junk or cost
considerably more for a tech to fix the damage done.
If you live in Calgary, call me. If elsewhere, find a competent tech.
Check out the Convergence Gallery. If you see the colored outlines or color shading as in the Gallery, you have a convergence problem.
This requires the replacement of the defective IC or ICs and any damaged or smoked resistors. Usually there is little alignment required after the repair. If you play with all the adjustments before the fix, hours may be spent re-aligning.
Don't monkey with it.
This is a delicate and difficult repair. If not done by someone with some electronic repair experience, the TV will likely end up as junk or cost considerably more for a tech to fix the damage done.
If you live in Calgary, call me. If elsewhere, find a competent tech.
if the tv has a portal on the side open it up and make sure the screen is not out of it's track, don't set anything on top of the set it could make it happen also
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