Originally Posted by bakedbean
I have a 30" 79 model. It has the shutdown issue, that can be temporarily remedied by pointing a fan into the back of the set. I found a page by Jason Coyne that describes this issue and it's repair but without details.
The page mentions the fix of the issue by replacing some components but I cannot find out which components are replaced. I browsed the first 40 pages of this thread thus far and found others with my issue but no resolution. The page mentions that the service technician said this problem plagues all sets with a Y in ther serial number followed by an 8, 9 or A. Mine has a Y followed by a 9. This problem presents earlier on as geometry issues and eventually results in the protect mode like random shutdowns.
The question: does anyone know which caps/resistors, etc. need to be replaced and/or upgraded to resolve the automatic shutdown. I have done these types of repair before and am aware of the dangers already. It would simply save alot of time if someone has made this repair before and can tell me what to replace so I can get my set back up and running.
Any help is much appreciated.
I had the "shutdown issue" crop up about 3 weeks ago on my 30" Slimfit. Looked here in AVS and also at Jason Coyne's page, no real help. Like some others I've read of, mine was accompanied by another symptom, increased horizontal overscan that was noticed about the time of the first shutdown. A 4x3 program nearly filled my 16x9 screen in 4x3 mode all the time.
I decided to try adjusting the image back to normal width using the deflection menu accessed from the service menu. I used ONLY the deflection menu ... wrote down all factory settings ... then adjusted "H-AMP" until the 4x3 screen looked about the right width; centered it using "H-SHIFT"; exited service mode; selected a 16x9 source & went to 16x9 display mode; then back to the service menu for another check of the width & overscan. I left it with just a little H overscan in 16x9, rechecked 4x3 mode again, and quit there.
To my delight, since I adjusted my set it has not shutdown at all and it's been over a week. Prior to that it was shutting down at least once per evening, sometimes more. Keeping fingers crossed!
[November 21: My 30 inch Slimfit has now died. Won't turn on at all. Will be buying an LCD flat panel to replace it this weekend.]