Double Blue Halo Effect and Blurry Blue Picture

You need to replace both convergence ics.
Use part number stk392-120

The convergence ICs need replaced and likely several resistors in that circuit.

call the repairman back and tell him the tv isnt fixed correcctly. have him come back and finish the work he started

This is a convergence problem that is being effected by heat. If you can solder, you should be able to resolve this yourself. Please be aware that there are potentially dangerous high voltages present inside the set even when unplugged.

Look for the large black ICs attached to a heatsink that will be marked STKxxx. These are the convergence ICs. Try resoldering the pins on these ICs and report the results. If the resoldering does not resolve the problem, the ICs may need to be replaced.

Keep us posted,
Dan

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. 

The CRT fluid in the blue and green tube are most likely clouded. The set is still good. You just need to replace the fluid. Check with the site www.TvRepairkits.com - they are working on developing a fluid kit that includes a photo instuction quide.

If the blue looks like an aura of light around the picture then it is likely to be a problem with the color wheel, probably it should be replaced.

Try first doing a color auto balancing (magic focus) and see how it goes, probably you will need to replace color wheel.

convergence problem you will need to stk ic and some resistors

if the hase your refering to a glowing halo its the blue coolant that needs changing. If it causing a 3D image then its the convergence ICs need changing

A halo effect usually means the coolant in the CRTs need replacing in the effected color usually blue goes first followed by green. red seems to be less prone for some reason.