Samsung HCN4226W blue color outlines

This tv have convergence problems.Ur tv convergence board the 2 STK convergence ICS are defective,and some or all it resistor are dead.Try website like Tvrepairworld.com to buy a whole refurbish convergence board for the replacement.Spend about $100 dollars more this tv can be save.

Its a problem with the screen, Plasma depends upon a chemical and eletrical impluses to create a display... I think you might just want to change the screen.

it has no relation to your putting in a blue cable. It's just died.

Replace convergence IC'S and check values of convergence circuit resistors.

Hi,

The most common problem with all 3 tube rear projectors is a damaged convergence circuit. The Samsung TVs are easier to repair than many others and the numbers that break down is not excessive. For every Samsung with a convergence problem there are a large number that did not breakdown. The fault is caused by bumps or noise in the AC power, not the TV design. This usually produces colored outlines around heads, etc.

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.

easyab

The green that you see is the DMD board (digital mirror display) going bad. Very common for this model.

same here, fuzzy blue when trying perfect focus, all other colors are sharp. I have the 2 STK392-040 package

If the blue is shifted away from the rest of the picture and maybe bowed then try the manual convergence adjustment. My guess is the red will move but the blue won't. If I'm correct call a tech unless you are a skilled solderer, then replace the large STK amps in the Convergence circuit and check all of the resistors in the circuit. Good Luck.

· Samsung parts for convergance problem
· http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

I WOULD RATHER THINK IT IS ONE OF THE CINVERGENCE AMPLIFIER & DRIVER IC,S A REAR PROJECTION TV NORMALY HAS 2 OF THEM AND THEY ARE THE SAME AND NORMALLY THE NUMBER ON THE IC STARTS WITH "STR *****" SWAPING THE TWO AROUND WOULD PROVE THAT YOU GOT A PROBLEM ON ONE OF THEM,THEN JUST GET 2 NEW IC'C THE SYMPTOM THAT YOU ARE DESCRYBING IS MOST LIKELY THE IC'S HOPE THIS HELPS IGNATIUS ,SOUTH AFRICA TV REPAIR ENGINEER