Larry,

I found thousands of these things from $6 to $12.  Now the decision is whether to go ahead and try fixing it myself.  I've been in the electronis business for nearly 25 years from assembler to owning my own company. Of course I'd love to buy a new 52" LCD but I guess I can try this first. Are there any other parts that I should look at in that circuit.  Also, why is this so common? What causes this to occur?

If you have or know where I can get any additional info to tell me how to determine if 1 or all are bad and anything else that could have gone with it, it would be greatly appreciated.

Thanks again.

Kevin

Larry,

I have a wt-42311 model Mitsubishi that went out on me last weekend.  let me give you the whole run down of what had happened.  Me and a friend were playing X-Box 360 on this tv.  well i kept noticing that everytime we changed the channel it kept coming up "Component 1- standard 480".  Well to fix this problem we went into the X-Box 360 set up and changed it to the 1080.  when we did this the tv flashed ( like a computer monitor would do when changing the settings) and just went off.  When we turned it back on it just clicked right back off. Well we did the built in diagnostics button routine and it gave us the 4 light envy!  2 blinks a pause then 2 more blinks.  We looked on line and found the replacement convergence kit ( the two STK392-110 Chips)  ordered it and it came in.  we replaced them tonight and still have the same problemn.  I had noticed it seemed a lot of people have been having this blinking light problem and you seem to be the only man with the answers.  i know my soldering is good ( i calibrate and repair electronics daily) and i dont have any schematics for this thing.  If there is anything you can help me with that would be great.  It seems a lot of people are having troubles like this.  What is the best thing you can tell me.  And by the way,  where is the reset button on this tv cause i cannot find it.  I am pretty close to saying it doesn't have one.  Thanks in advance.

Wesley Massey

Massey_wesley@hotmail.com

Hey larry its stephen again.  I replaced those ic's and I am still having the same problem.  I appreciate your comments on my questions before and just wondered if you would know the best place to buy those fuses and pico fuses from.  I did not buy the service manual for my t.v.  I just found the ic's and replaced them.  If you knew the part numbers for those fuses it would help me out alot.  If not I guess I will just have to buy the service manual since I do not see these fuses or pico fuses.  My tv is the Mitsubishi VS-55707.  Thank you so much for your help.

Dear Larry,

I am new to this site and am glad I was able to find it.

My problem is with my Mitsubishi WS-55905 projection TV. The blue convergence is off, creating a trailing effect in the picture. I haven't done much testing to determine what is the exact cause for the problem, but I would imagine it is the IC part.

Through reading the thread (boy, loads of great info and knowledge I gained), please confirm that the correct chasis for this model is: V16 and the IC p/n is: STK392-040      I found the right IC parts on the link noted in the thread and will order today to take a stab in fixing myself.

Also, are their any  other hints or additional parts I should replace at the same time? WE really love the picture the Mits produce, and do not want to junk before trying to save it. I think the picture is still better than whats out there today.

Thanks and enjoy reading your comments and help!

Regards,

Michael

jamesb69 said: I have a ws-65313 about 3yrs old. It will not come on unless I unplug it for an extended period of time. Then it will work until I shut it off, then I have to unplug it again. My question is this; can this be caused by a bad DM board? Mine does not have the caps everyone is talking about, it has the small silver button caps. There are no obvious signs of shorted caps, all fuses are good. I have been trying to find someone with the same problem on this particular model but so far have not. Any help would be appreciated.

 I have a WS-55313, which is basically the same as the 65313; at least according to the manual. I have a similar issue. The TV will power on and then immediately off. I get the blink code 2-2, circuit short protect error.

 I have opened the back and looked for bad caps, etc.. but I cannot find any faulty components. Any information anybody has on this family of Mitsubishi would be much appreciated.

You replaced the IC's. what was your model number and error code? or symptoms??

Larry Dillon said: sap29, you will not"see" faulty components in a solid state set unless they are really burnt up, and that is not how mot components fail. Your complaint is most likely the convergence IC's. I say most likely because I have seen this symptom many time, and the cause were the IC's. I have also seen this problem to be in the power supply board., This is where troubleshooting skills come into play. You really should call in a tech if you have no solid state repair experience. I just had a guy who tried to change his own IC's and ruined the printed circuit board. It will, if he decides to have the set repaired, many hours of hard wiring the IC's, both of them, back into the main circuit. You need good soldering skills when working on a set. You could send the entire electrical chassis to ptscorp.com and they will repair and overhaul the chassis for about 300 bucks or so. You need to call them to find out. Good Luck with your set.

Larry,

  Thank you very much for the follow up. I admire your graciousness and patience helping all of us who own these TV's on this forum. You  have convinced me to have it fixed or just see if someone wants it, and let them deal with it. Thanks again.

I have a Mitsubishi WT- 46805 projection TV. I replaced the convergence IC's trying to correct the convergence problem. I still am unable to use the set-up auto convergence to correct the problem. Everything else works fine. Good picture but a picture that is tall at the sides and narrower in the center. Your help is appreciated.