I was having the problem that many on this site have listed where TV would shut itself off and come back on without me doing anything to it. It usually only occurred in the morning after the set had been off all night. The shut-offs were interspursed with flickering picture sort of like when a computer monitor resyncs after resolution changes are made. After it warmed up for 20-30 minutes all the problems would go away.
This went on for several weeks, then one day it wouldn't come back on. Found info on this site that it was likely a blown fuse. Sure enough, replaced the 4A fuse on the middle board and worked fine. But it continued to have problems and I went through three more fuses within two or three weeks. I started leaving the TV on all the time, and only turning off the cable box. This prevented any of the problems from coming back but used a lot of unnecessary electricity.
Once again, based on info on this site I ordered and replaced my chips with STK 392-180 chips. Genuine Sanyo chips from electronic parts kits.
After replacement, the same problems appeared.
So after more reading I suspected cold solder joints. I reheated most of the solder connections on the right hand board that the STK chips are on as well as the larger and high temperature areas on the middle board. However, I didn't remove the old solder and most looked very dull and didn't flow well. On a few leads I added a very small amount of new solder and got much better results with solder flow.
But once again the problem still exists. Appears to be heat related, but opposite of most heat related problems because this one only appears when the TV is cold and then goes away as long as the TV stays warmed up.
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Ur tv still have dead resistors parts,test all 12 resistors parts around the 2 STK convergence ICS and changes some more dead resistors parts or changes all 12 resistors parts for sure.If tv still have the same problems after tested and replaces more resistors parts or all 12 resistors parts.Than some how when u handling and replacing the 2 STK convergence ICS and resoldering the 2 STK covergence ICS u short it out the 2 STK convergence ICS by resoldering without proper grounding ur self not to allow for static electricity to kill the 2 STK convergence ICS or u using a soldering iron to high of a wattage for doing soldering ICS work.
No,this problems it is the tv Tuner signal board itself have issues.Tv intermittently shutdown and restart wright back and tv work fine as nothing wrong wright?Yes.This problems it is the tv Tuner signal board itself have ICS chips grounding issues problems.These ICS chips on the tv Tuner signal board are surfaces mounted soldering works and are not on sale indivitually ICS to the customers,even if they do,it impossible to do surfaces mounted ICS chips parts work without a 1200 degree celsius convaer belt style wave soldering machine any how.The tv still work fine wright,just used it.When it shutdown for good and don't restart it wright back again.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv Tuner signal board for the replacement.
Your Convergence ICs have likely failed. It is very common on rear projections. Replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu.
Use this simple test to verify. Go to the users menu on the tv. Look for the converge option to align the red and blue colors
If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section. If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.
If you can move both in each direction then the problem is something else.
Note if one STK chip fails, you replace both regardless. There may only be one STK chip in this set. If there are two, they will be right next to each other.
It sounds like a convergence problem. A fairly common reason for thisproblem is the convergence chips have failed. They are usually referredto as "STK" chips since the model number of these chips start with STK.I will put a link to another part of this site where someone has postedpictures and a link where to get the parts should you decide to fix ityourself. Look at Ecullier2012's posting. Jean's posted site will notfix this problem. Hope this helps you out. Let me know.
Sounds like your convergence chips are shorted which would make the set shut down. Its also possible that the flyback has failed but because the first symptom was the 3d look I would start with the convergence repair.
Here are some of the most common symptoms.
Screen looks 3D One or more colors can't be adjusted when using the convergence menu. Screen is bowed in but stationary. No audio or video - typicaly occurs after having the distorted color problems listed above.
Solution: You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself.