Replaced all caps except large 450V in the middle. Checked for cold solder joints. When i plug it in the relay clicks, red light blinks 4 tmes but nothing else happens.
Any ideas?
Any ideas?
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Re: Samsung LN-S4041D No power, relay clicks.
Why have you posted the picture upside down?
Welcome to the forum-
We can help a lot more if you please post good clear pictures of the whole chassis, and then pictures of each board, front and back and close up of connectors, (max resolution 2000x2000 and 2MB) using the manage attachments button, which is found by clicking "go advanced" under quick reply.
Please do not post inline and offsite as they slow down the loading of pages.
Examples of what is needed
https://www.badcaps.net/forum/attach...1&d=1290283049
https://www.badcaps.net/forum/attach...7&d=1280167246
It will be useful if you can say a bit about yourself - skills tools etc.Last edited by selldoor; 04-29-2012, 07:39 AM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740 -
Re: Samsung LN-S4041D No power, relay clicks.
The forth capacitor from the bottom of the left heat sink at the secondary side looks bulged, is it..? Strange since you replaced them all. Also, which brand and type did you use?
I nearly got crazy after I recapped a (working) router to extend its lifetime, when ALL the polarity markings on the PCB was wrong
It worked for a few minutes but then the capacitors started to pop. Therefore, as a general advice, look how the capacitor which is to be replaced is connected before desoldering it. It´s not fun to ruin new capacitors and have to do all the work again...
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Re: Samsung LN-S4041D No power, relay clicks.
All replacement caps were Nichicon, some of them i upped the voltage (10v to 25v) to make ordering easier on myself. Otherwise same UF same voltage.
I can solder and use a multimeter. Have a Hakko variable temp iron and a harbor freight digital MM.
None of the replaced caps are bulging, must be the angle and lighting in the picture. Might take some better pics on monday if it will help diagnose the issue. Although at this point all caps look perfect as do all solder joints.
The polarity markings are very clear on this board. All caps were in proper alignment and all were replaced in the same manner.
None of the caps were bulged or leaking before i replaced them, i was hoping for a quick fix, but that obviously didnt happen.
The symptom before and after replacing the caps is exactly the same.Last edited by DonutHands; 04-29-2012, 01:43 PM.Comment
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Re: Samsung LN-S4041D No power, relay clicks.
Can you check voltage on each pin for each connector. Put your black probe on the corner screw- red probe on each pin and report the voltage along with its legend/label. For example,
Connector CNxxx
pin 1 -5VSB - actual 4.99V
on the primary side there are 2 small caps at cp802 &cp807.
Did you change these? Although small if they are the start up caps they could prevent the whole system starting.
Are the 4 blinks repeated or does it stop on red or go off. Have you been able to find what the 4 blink code means?Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Samsung LN-S4041D No power, relay clicks.
Think this is the SM
http://dl.dropbox.com/u/35219914/Sam...20-%20Copy.rarPlease upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Samsung LN-S4041D No power, relay clicks.
Did you check the fuses one obvious white ceramic and 2 bronze looking barrel things in the centre of the board. Power off Meter on ohms one probe on each side of fuse -post the results - should be the same as touching the probes together. Would have spotted them hours ago if the pic had been the right way up.
Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Samsung LN-S4041D No power, relay clicks.
Will test those connectors on monday, TV is currently at work.
I did test the ceramic fuse (tests fine of course), didnt realize those bronze barrels were fuses, will test those out as well.
Thanks for your help so far.Comment
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Re: Samsung LN-S4041D No power, relay clicks.
This is what I had to do to mine to fix it.I hope this helps.Thank You very much!
Tyler
http://techreport.com/forums/viewtop...2360&start=840Comment
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Re: Samsung LN-S4041D No power, relay clicks.
I have a Samsung LN-S4041D that just clicks and never shows a picture and I don't hear any sound either. I removed the board and I have inspected it for bad caps and bad solder joints. I can't find anything obvious. I have not read for any voltage anywhere because I dont know what to look for. I am technically inclined, but I need a little direction as to where to go now. Thanks for any help! pics of the board are attachedAttached Filesif you find these attachements useful please consider making a small donation to the site
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