Just posting so this may help others out:
Had the above TV come in for the typical "click-click", and no picture or sound. Didn't find any problem with the usual 10R5W resistors, the standby regulator, or anything else. Eventually found T901 had broken solder on its pins. Resoldered it and the identical transformer next to it, and the TV works great now.

Hope that helps someone!

Re: LG 42pj350 clicking still after repair kit



I just did a 50PK550 for this problem. Turned out to be bad solder on T901. I would check that if I were you, and the transformer next to it....

Re: LG 50PY3D red sparklies and line.

Thanks for the info, Alastair, and thanks for the link in your signature. I downloaded it. It's an informative read.

Re: LG 50PY3D red sparklies and line.



Here you go. Strangely, I noticed the word "Closed" formed in the red sparkles, and you can barely make it out in the 3rd photo. There are a couple of other odd shaped that show up on light scenes, but they are even more vague. They are almost impossible to get a good picture of....

Re: LG 50PY3D red sparklies and line.

Update: I checked the Vs and Va voltages. They were pretty much bang right on with what the sticker on the panel said: 190 and 60. I tried lowering the 190V supply by 5V just to see if it made any difference, but the picture didn't change.
I then marked the position of SET-DN and found it made a considerable improvement in the redness with a 1/8 turn. Still some sparkles, and the horizontal line has gone darker, almost like some pixels rarely turn on. Overall the picture is improved, but not great.

Greg

The above set came in dead. Customer said it got harder and harder to turn on, so they left it on all the time. (Never heard that before, have you? )

Anyway, I found and replaced half a dozen 3300uF 10V caps in the SMPS, hit the switch and it fired right up, but no celebrating for me.

There is a picture, but it has a lot of reddish sparklies in the main viewing area of the screen. There are fewer in the top part of the screen, and none within 3 inches of the edges of the screen on all 4 sides. The bottom half of the screen has a very definite pinkish tinge...

Re: New Members - please post your introductions here

I run an independent electronics repair shop. Have been doing component level repair for a while, but sometimes need to quit being so independent. ;-)
Mainly work on televisions and computers. Have done some custom electronics builds on occasion.

Greg