Official Samsung PNXXE7000 - PNXXE8000 owners thread - Page 149 - AVS Forum | Home Theater Discussions And Reviews

Forum Jump: 
 5Likes
 
Thread Tools
Old 09-14-2016, 11:26 AM
Member
 
Ranger519v's Avatar
 
Join Date: Feb 2011
Posts: 29
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 10
Shuts off after 5-10 minutes - power supply or main control board?

I've spent hours reading through this thread but cannot clearly discern whether I need a power supply or a main control board for my PN60E8000.

Upon good power on, unit will shut off anywhere from 5 minutes to hours later. Front lower left red led flashes in the following cycle:

short (a quick flash), medium (maybe 1 second), short, medium, short, medium, short, medium, short, long (4 seconds)
... repeat ...

I then unplug it, wait, replug and turn it back on. Works fine for 5 minutes to hours and then shuts down again.

I don't know how many are still following this thread but can anyone tell me whether I need a new power supply or main board (which is much more expensive)? I'd like to believe the LED cycle above would tell us something but I couldn't find anyone referencing the flash code it is giving.

Thanks!
Ranger519v is offline  
Sponsored Links
Advertisement
 
Old 10-01-2016, 09:27 PM
Newbie
 
Join Date: Oct 2016
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 0
Quote:
Originally Posted by Ranger519v View Post
I've spent hours reading through this thread but cannot clearly discern whether I need a power supply or a main control board for my PN60E8000.

Upon good power on, unit will shut off anywhere from 5 minutes to hours later. Front lower left red led flashes in the following cycle:

short (a quick flash), medium (maybe 1 second), short, medium, short, medium, short, medium, short, long (4 seconds)
... repeat ...

I then unplug it, wait, replug and turn it back on. Works fine for 5 minutes to hours and then shuts down again.

I don't know how many are still following this thread but can anyone tell me whether I need a new power supply or main board (which is much more expensive)? I'd like to believe the LED cycle above would tell us something but I couldn't find anyone referencing the flash code it is giving.

Thanks!
I have the exact same issue with my pn60e70000, i'm trying to troubleshoot it. It randomly turns off and standby starts blinking. If I unplug it for a little while, it will come back on.

I had a previous issue last year where the power supply was dead with no standby, but I got lucky by resoldering the transitors near the center of the board and it came back to life. I tried resoldering a bunch of them again this time but no luck.

At one point, it seemed that I could tap on the panasonic relay near the ac input and get things working again. I ordered a new relay from mouser thinking that was the issue. After installing it, it worked for a little while but still started cutting off again. I did notice the new relay is much quieter than the old one so maybe it helped, maybe not. I also updated to the 1060 firmware but that didn't much either.

Anyhow, I found the service manual on samsung parts dot com for $12 plus shipping so i have that on order. I borrowed a good dmm so I'll I'll start probing around for bad components. It seems capacitors and mosfets are common suspects so I'll probably order some and give it a shot. I'm not sure if I'm dealing with a power supply or main board issue so i'm hesitant to order a new board kust yet. Plus, if I can figure out which component to replace to repair it for just a few bucks, I'd much rather do that than shell out several hundred for a new board or repair service. Any advice would be helpful.
m3amigos is offline  
Old 10-02-2016, 07:51 AM
Senior Member
 
bustamelon's Avatar
 
Join Date: Dec 2005
Location: CT
Posts: 332
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 11
FWIW, I had the same problem. Replaced the power board, no change. But disabling network seemed to solve it after the fact. I also have issues with flashing, where blacks flicker to grey. Haven't pinned this down to the TV as it doesn't happen in menus.

Sent from my SAMSUNG-SM-N910A using Tapatalk
bustamelon is offline  
Old 10-04-2016, 03:29 PM
Member
 
boondongle's Avatar
 
Join Date: Nov 2007
Posts: 149
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 21
I've got a PN51E7000 that I purchased about 4 years ago. The display gets purple banding and splotches when the screen is bright. For example while watching Hockey or Hoth scenes from Empire Strikes Back.

Ended up buying a new Sony (this is my first and likely last Samsung) but wondering if anyone has a recommendation on what to do with this thing. New Panels are about $700. I've heard on older Samsung Plasmas the VS pots could be adjusted for voltage and may just open it up and give it a try....

I'd sell it on Craigslist but even working Plasmas aren't going for that much.

It doesn't do any of the power off stuff. It did it a couple times within the first year so I had the main board replaced as a precaution. I don't have need for it in any other rooms. It's covered up and just sitting in the garage for now.

But, it gave me an excuse to bump up to a sweet 65" 4K TV - and my wife didn't even seem to mind.

Last edited by boondongle; 10-04-2016 at 04:18 PM.
boondongle is offline  
Old 10-05-2016, 08:13 AM
Senior Member
 
bustamelon's Avatar
 
Join Date: Dec 2005
Location: CT
Posts: 332
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Liked: 11
HDMI Cable swap seems to have fixed my flashing issue. FYI

Sent from my SAMSUNG-SM-N910A using Tapatalk
bustamelon is offline  
Sponsored Links
Advertisement
 
 

Tags
Samsung Pn60e6500 60 Inch 1080p 600 Hz 3d Slim Plasma Hdtv , Plasma Hdtv , Samsung , Samsung Un65es8000 Led Hdtv
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off