I just replaced both STK392-110 chips on a Toshiba TP55E81 rear projection set that lost the picture. I ordered the chips for $21.95 from electronic-repair-kits.com because they say they only sell original Sanyo parts. I cleaned the old paste off the heat sinks and applied new paste to both chips. I also checked the resistors to make sure they were within 5% tolerance. I had to replace one 2.2 ohm resistor which was out of tolerance. I got the picture back and the set worked for about an hour. Then, I lost the picture again. I turned it off for a few minutes and the picture came back for a few minutes then I lost the picture again. Now, I can't the picture to came back. While I did have a picture, I was able to adjust the red and blue convergence to get good center convergence. I was unable to adjust the outer edges where blue was out quite a bit. Is it possible I did not get original Sanyo parts? They looked like the ones I removed and felt about the same weight. Is there some way to tell the difference? Any help would be appreciated. Thank you in advance. Frank
Toshiba TP55E81 Rear Projectioin No Picture
Tue, 05/16/2017 - 13:26
#1
Toshiba TP55E81 Rear Projectioin No Picture