Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting TVs and Video Sources
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 03-03-2015, 08:32 PM   #1
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Help Samsung PN43D490A1D

Hi all, I have a Samsung PN43D490A1D Plasma. Shut off randomly one day. Does the standard clicking but of course no bad caps. My first thought is X Main but want to ensure I'm not just taking $90 stabs at this thing. I have soldering tools, multimeter, and most common tools at my disposal but don't know a ton about circuitry. Pictures are below. Please help me take a smart organized approach to this troubleshooting.
Attached Images
File Type: jpg 20150303_202008.jpg (73.7 KB, 13 views)
File Type: jpg 20150303_201939.jpg (74.3 KB, 13 views)
File Type: jpg 20150303_201902.jpg (227.8 KB, 16 views)
File Type: jpg 20150303_201833.jpg (148.7 KB, 15 views)
File Type: jpg 20150303_201806.jpg (120.8 KB, 12 views)
File Type: jpg 20150303_201714.jpg (230.5 KB, 16 views)
File Type: jpg 20150303_201633.jpg (235.5 KB, 12 views)
bodine1187 is offline   Reply With Quote
Old 03-03-2015, 11:14 PM   #2
jhd2112
Member
 
Join Date: Mar 2015
City & State: Lompoc CA
My Country: US
I'm a: Knowledge Seeker
Posts: 24
Default Re: Help Samsung PN43D490A1D

First Go To Randtek in forum. open his link in forum called Trouble shooting Plasma TV by Tom66. Tom66 has links to get service manuals for Plasma TVs. They have all the information you might need. I have read most of there links and they are true blue TV Veterans. I would be lost with out them. I hope you get your set up and running soon.
your second picture has the power supply voltage listed and you can find key location on power supply board to test them but first get a service manual for TV. Thanks and good luck, hope you are eating popcorn soon.
jhd2112 is offline   Reply With Quote
Old 03-04-2015, 12:40 PM   #3
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

Thanks jhd2112! I have downloaded the fast track manual and followed. I am getting .020 volts on my STBY Pin at startup...as the TV clicks it jumps a bit but never the same amount...I'm afraid it may not be enough time between the power cycling to get a voltage.
bodine1187 is offline   Reply With Quote
Old 03-04-2015, 01:03 PM   #4
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

Activating Power and Logic Board Test Patterns with Jumper resulted in faster double clicking 3 times. Click Click, pause, Click Click, pause, Click Click, nothing...Still nothing on screen.
bodine1187 is offline   Reply With Quote
Old 03-04-2015, 01:14 PM   #5
Shinju
Badcaps Veteran
 
Join Date: Mar 2014
City & State: Kirkland Wa.
My Country: USA
I'm a: Knowledge Seeker
Posts: 1,177
Default Re: Help Samsung PN43D490A1D

Disconnect the X board from the SMPS (power supply) and see if the unit powers on.

Last edited by Shinju; 03-04-2015 at 01:18 PM..
Shinju is offline   Reply With Quote
Old 03-05-2015, 06:47 AM   #6
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

I have disconnected both X and Y from the board to isolate them and the unit stops the clicking. However, according to Tom66 reference troubleshooting fast track guide this is normal because the SMPS actually will not even allow power through without the X and Y connected on the 2010 and 2011 models. Also unfortunately this unit doesn't have a startup chime to be able to tell if audio is on or not.
bodine1187 is offline   Reply With Quote
Old 03-05-2015, 11:32 AM   #7
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

Ok so did a continuity test I found on Just Answer and here it is...X Main connected to Y main. Test continuity from Vs to GND on Connecter from Y main to X Main at X Main. Showed a short. Remove Connector going to X main. Test Again...OK. Went to X Main. Removed board from TV. Test from VS pin to GND pin on incoming connector with everything removed. Short. My guess is bad X Main.. What's everyone's thoughts? Seems logical to me but just want to be sure...Any other tests I can perform to check if another component is frying the X Main? Any way to repair the X Main?
bodine1187 is offline   Reply With Quote
Old 03-12-2015, 01:19 PM   #8
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

Got my X Main in today. Connected it up and clicking has stopped. Now the red led just blinks. No power, no sounds, nothing. Red Led blinks double blinking 5 times and then solid. Repeats this indefinitely.
bodine1187 is offline   Reply With Quote
Old 04-11-2015, 10:47 PM   #9
p-top
New Member
 
Join Date: Jan 2015
City & State: winona, mn
My Country: usa
I'm a: Knowledge Seeker
Posts: 9
Default Re: Help Samsung PN43D490A1D

the connector in pic 2 is not fully seated. . .two of the caps on pic three look alittle puffy as with few in six. cant see the ones on the ps well. you should esr test or replace all of them.
p-top is offline   Reply With Quote
Old 04-12-2015, 12:50 AM   #10
capkid
Badcaps Veteran
 
Join Date: Oct 2010
City & State: Federal Way,WA
My Country: United States
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 1,329
Default Re: Help Samsung PN43D490A1D

Quote:
Originally Posted by p-top View Post
the connector in pic 2 is not fully seated. . .two of the caps on pic three look alittle puffy as with few in six. cant see the ones on the ps well. you should esr test or replace all of them.
I'd guess that the connector was not fully seated because the OP had just pulled it to do a test. Also, I don't see any bad caps in those pics.

Like I always suggest with this era of Samsung plasma, I'd pull both the Y-main and X-main boards then check the components on the heat sinks for shorts.
capkid is offline   Reply With Quote
Old 04-12-2015, 09:07 AM   #11
p-top
New Member
 
Join Date: Jan 2015
City & State: winona, mn
My Country: usa
I'm a: Knowledge Seeker
Posts: 9
Default Re: Help Samsung PN43D490A1D

regretted posting. i should be asking advice not trying to give it. thank you for correcting me capkid.
p-top is offline   Reply With Quote
Old 04-12-2015, 09:17 AM   #12
capkid
Badcaps Veteran
 
Join Date: Oct 2010
City & State: Federal Way,WA
My Country: United States
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 1,329
Default Re: Help Samsung PN43D490A1D

Quote:
Originally Posted by p-top View Post
regretted posting. i should be asking advice not trying to give it. thank you for correcting me capkid.
Don't sweat it. No one here is all-knowing. I can't count how many times I've made posts I wish I could have back.
capkid is offline   Reply With Quote
Old 04-12-2015, 09:35 AM   #13
newtothis
Badcaps Veteran
 
Join Date: Mar 2013
City & State: darlaston
My Country: england
Line Voltage: 230
I'm a: Professional Tech
Posts: 1,542
Default Re: Help Samsung PN43D490A1D

Quote:
Originally Posted by capkid View Post
Don't sweat it. No one here is all-knowing. I can't count how many times I've made posts I wish I could have back.
Indeed.

We all start somewhere hence my Forum Name lol and we all feel when we start to try helping when we receive help. Don't worry about it... You will pick things up from making errors as generally one of us will notify you of what is right and wrong. If I am not sure I will say so though as I don't want anyone to do something wrong on my say so.
newtothis is offline   Reply With Quote
Old 04-12-2015, 11:17 AM   #14
bodine1187
B87
 
Join Date: Dec 2014
City & State: Grovetown, GA
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Knowledge Seeker
Posts: 13
Default Re: Help Samsung PN43D490A1D

Quote:
Originally Posted by capkid View Post
I'd guess that the connector was not fully seated because the OP had just pulled it to do a test. Also, I don't see any bad caps in those pics.

Like I always suggest with this era of Samsung plasma, I'd pull both the Y-main and X-main boards then check the components on the heat sinks for shorts.


Not home today and TV has been sitting for a while. Last status update was X -Main replaced. Software updated. Now TV will randomly shut off and give me red blinking LEDs for a while. Powers up an hour or two later. On a road trip today and tomorrow. I will pull Y-Main when I get home. How do I test heat sink components? Testing for shorts or continuity between components?
Thanks everyone for the help!
bodine1187 is offline   Reply With Quote
Old 04-12-2015, 11:33 AM   #15
vinceroger69
Badcaps Veteran
 
Join Date: Mar 2012
City & State: Nuneaton Warwickshire
My Country: uk
I'm a: Hobbyist Tech
Posts: 6,369
Default Re: Help Samsung PN43D490A1D

re solder all joints on transistors etc that are fixed on the heat sinks on the power supply they have been known to crack causing these sorts of faults i would re solder all of them even if they look good.
vinceroger69 is online now   Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 10:53 AM.
Did you find this forum helpful?