Showing posts with label Capacitor. Show all posts
Showing posts with label Capacitor. Show all posts

Wednesday, January 18, 2012

Once upon a service call...

Today we finished working on a Mitsubishi big screen that was having issues turning on but was displaying a blue screen.

Mitsubishi big screen television that was showing a blue screen.
Mr. Pickett had initially taken the video board out and replaced a few capacitors but as it turns out, that was not the end of the problem. Once the video board was re-installed, it continued doing the same thing. So we had to pull the board back out again, recheck all of the caps and also check to see if the picture tubes were leaking any fluid. Finally, it was determined that we had to replace the RF Module, a video chip and the caps. Luckily, there weren't any leaks but we did mention to the customer that if there were any further problems we would be pulling those picture tubes out refilling them with CRT Fluid (coolant), at no charge, of course.
Mr. Pickett adjusting the board.


A look at the picture tubes for leaks.

Thursday, January 5, 2012

Sony DLP TV, KDF 50E2000



This television came to us after a voltage surge and initially the lamp, a 480 micro farad capacitor and a power supply board needed to be replaced. That was done, it was turned on and it worked. The very next day we turned on the television and viola! Nothing...so we took another look and found that the heat from the surge had warped the inside of the door panel where the switch to the lamp is. Now we have to fix that.