I just replaced the 2 Convergence IC's now i have a bad pitcure

change here the two stk-392-570 convergence chips and one of the two pico fuses connected to them, if you still need help I have instructions for this repair in this set--start to finish.

Mitsubishi self check: MOST OF THESE SETS HAVE A SELF DIAGNOSTIC:

UNPLUG TV AND THEN PLUG BACK IN---TURN ON---GREEN POWER LIGHT COMES ON FOR A MOMENT AND GOES OFF.

PRESS AND HOLD "device"(input) and "menu" buttons on front of tv for at least 5 seconds and then release both together.


Watch for power light to blink in a sequence:

1 blink-then 2 blinks-------no error

2 blink-then 1 blink-------X-ray protection

2 blink-then 2 blink-------SHORT PROTECTION*******

2 blink-then 3 blink---------deflection circuit problem

2 blink-then 4 blink---------vertical circuit problem


******2, then 2 is most common---usually means one of the fuses that protect the Convergence IC or IC's is blown---set will detect no voltage to convergence IC and shut down.


SET WILL REPEAT BLINK ERROR CODE UP TO 5 TIMES AND THEN TO GET IT TO REPEAT MORE YOU HAVE TO UNPLUG SET AND TRY TO TURN ON AGAIN.


IF IT IS 2 AND THEN 2---USUALLY
CONVERGENCE CIRCUIT PROBLEM

let me know what you find--hope that you find 2 blinks, a pause and two blinks--this is the most common and easiest to fix.

No,this problems is not the projection lamp problems.The tv now have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or look like 3D pictures.The tv convergence board,the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved the tv picture convergence problems.The shop,will cost u like 300-350 for parts and labors.

one of the two pico fuses that protect the convergence chips this model uses is gone--see attached photo--

NEVER change just the fuses---if one of the two fuses is blown--the convergence chips got them-----

there are several ways to proceed from here-check the two fuses indicated in the photo and tell me if either or both are bad.

SD TECH

u may have a bad convergence ic and 2 pico fuse on the power supply , this type of work is recomende to be than by a tv repair shop

you only need one STK393-110 Convergence IC and two 5Amp pico fuses. You can get the IC and the two fuses for less than 35.00 at the following link and they provide free installation instructions with pictures so you can easially do the repair yourself. Heres the link.
http://servicemanuals.vstore.ca/

Hi,
Check resistors might have cold solder joints are changed resistance values around replaced STK393-110
Pay attention to faded colored or fried resistors.
You can download service manual for WS-55511 from HERE to get schematics and technical info. (download all 3 parts of file and use WinRAR to extract file)
Good luck.

I replaced the pico fuses and the convergence IC's. fuses poped right away code 22 . Further inspection of the board showed the coolant had leaked out of the center projector and fried the board. Not willing to pay $300. Passed it on to someone else

The power supply has likely detected a short circuit. Hold the front panel INPUT and MENU buttons down for 5 seconds then read the code from the green light. If the light flashes a 2-2 code (2 flashes, followed by a 1/2 second pause, followed by 2 flashes) then pico fuses are blown. A 1-2 code indicates that nothing is wrong. The likely cause for blown pico fuses (FA904 & FA905) is a bad convergence driver IC. The PC board must be resoldered to replace the ICs and fuses.

Try resoldering the convergence ICs mitsubishi has been known to be a little stingy on the convergence IC solder in the past.