HPT4254 Samsung Plasma Power Supply Repair Clicking Off and On BN44-00159 BN44-00161 BN44-00188 

10 years later and this video salvaged another TV (Samsung HP-T4264). Much appreciated!

I recently fixed my 65" LG plasma that clicking because of bad Y boards. I used your merhods to isolate the problem and really appreciate your work!

I just wanted to say Thank You! This exact model Samsung television was given to me by a friend after he paid to have it repaired. The technician said he replaced a capacitor on the PCB and had it up and running. Within a week the television went south again, prompting my buddy to give it away. I picked it up today, came straight home & searched RU-vid finding your video. After 10 minutes of laying down new solder in your recommended areas, I have a functioning 42" for $0.00. Great advice!!!

Thanks for sharing this info. I was ready to put the TV in the trash but I checked this video. My TV had the same broken solder. You saved me $600. Thanks again

This fixed the problem completely for me! Just did the repair work last night, I replaced 2 bulging capacitors but the problem continued. Pretty much exactly followed this video, resoldering anything on a heatsink and it has been working perfectly ever since!

You sir are my hero. After 9 years with this tv I figured it was time. Mine was loose the same as the video. Fixed the solders and she runs like new. Been a couple hours now. I almost threw it away. Thank you so much for the video

After inspecting the same solders on the circuit board with a cheap hand-held microscope, It was kind of fun to take just the circuit board to my local TV repair shop and tell them what I thought was wrong (complete with a Post-It note with arrows). I DID give this video credit and it was spot on! $50 repair (2 capacitors also bulging a little) sure beats having to buy a new TV. THANKS!!!

I have been working on my Samsung for some time now, I replaced all the capacitors on the power supply to no avail! So I found this video and found that this is what was wrong with my Samsung Plasma as well. Soldiered it up and it worked. My TV is now fixed! Thanks for this video. To everyone with the same tv and power on and off issues try this first before assuming capacitors! Thanks!!

Thanks for the help. I've fixed over a dozen LCD's and Plasma's. Feeling good about not filling up landfills. Your video and expertise help helped save me money and the environment. Thanks

Without any previous knowledge in electronics, I have been able to fix my Plasma TV thanks to that great video. Thank you so much!!!!

I found this video after finding out my tv broke just after the window closed for me to get it fixed on Samsung's dime in the class action lawsuit. I was about to throw it away but with the help of a friend and this video I was able to get it fixed. We inspected all of the solder points but couldn't find anything so we decided to resolder the first couple of points he indicated. Once we started it was apparent that it needed it. Thanks for the post. Saved me from having to buy a new TV.

Gold man, absolute GOLD. You saved my TV from a trip to the dump, I wouldn't have been able to fix it if it wasn't for this video, Thanks alot - from a novice in Sweden :).

Thanks for this great guide! The exact same solder point on my 42inch Samsung was causing the on/off clicking. Many thanks to you!

Just saved another one! (HPT4254) Exact same pin was loose! Thanks again !

My TV: PN60E7000FF Version TW02 with BN-4400514ASK power supply board Excellent video! I have been all over the web but your video provided the answer. I reflowed the solder on all the transistors on the power board that are on the aluminum heat sinks. Now the set is up and running fine! Thank you!

Tried resoldering all the heatsink mounted parts as you suggested and now the set is fine, thanks!

Thanks for this video. After weeks of clicking on and off, I was ready to get rid of my Samsung HPT4254. Before dropping the cash for a new set, though, I checked out videos about the bad capacitors. But all my capacitors looked okay and there are so many of them on the board I wasn't going to randomly guess. So, again, I was ready to get rid of the set. But, last minute, I found your video and figured "Why not, worst I can do is break an already broken TV." With a magnifying glass and a little time, it turned out that the *exact* same pin you identify at 3:20 in your video was the problem. I'm no electronics expert but I do have a soldering iron and, with a little care, even my slightly messy soldering totally cured the problem. Has been working perfectly since.

Hey! Thanks for the video, this is exactly what was wrong with my HPT4254. When I removed the panel, turned it around and located the same exact tab, is was lose with ring around it. Soldered the tab, put it back together and its perfect! Thanks again.

Thank you so much for this video! My HP-T4264 had this exact problem! My caps looked good and I overlooked this loose connection. Same exact pin as the board in the video. Great advice regarding heat sink movement!

Well would you look at that, just fixing one of these boards, and came across this video, and low and behold the same pin has a dry joint. TV is working fine for a young lady again and has been for a few hours now. so confidant this is the fix it needed rather than component replacement. thank you :D

Finally, it took me a while to find your post... glad I haven't purchased any caps yet! Thanks for sharing your knowledge NorCal

This was the problem with my TV. So happy to have it working again. Thanks for posting this video.

Great video, have the same flat screen. This repair worked like a charm! Thank you

Thank you! Thank you! Thank you! Just opened up my HPT4254 and resoldered each of the components you spoke about and now it works like a charm! Going to give it a couple days before I think it's good as new though...

Brilliant- well done, thanks for that- I had exactly same problem on a 42'' with same PSU- Fixed just as you showed-

Thanks a ton! Loose solder joints on one of the FET's was indeed the problem. Easy fix, easy profit! Thanks again!

Thanks for you video! I have the exact TV in the video and followed your steps. Works like new again!

Brilliant vid heat sink and rectifier solders broke lose resoldered now back up and working fine thank you.

I have the exact same problem on the exact same tv. I was planning to replace all the power supply capacitors. Looks like the fix might be much easier. Thank you.

Very professional indeed....i will have a crack on my clicking noise Samsung later during the week...Thank you.

This video certainly aided me in fixing this exact problem but not instantly. The first symptom I diagnosed was a capacitor that was slightly swollen and bleeding a yellow drop on the top. I removed the 1000 micro Farad, 25volt capacitor and measured it with a Multimeter which confirmed it was faulty at about 370 uF's. i replaced it with a 1000 uF, 35volt capacitor, yet my symptom still remained. the next thing i did was re-solder every component on the heat sinks (just like the video recommends). I put the board back in it's home, powered it up and an hour and half later, the TV was working!

Thank you!! I just rescued an HP-T4234 off the curb and it has the same issues, appears to be the exact same problem. Going to attempt a repair asap

My TV 42" Samsung started switching On and OFF. As you explained, the problem was bad solder on one of the non riveted transistor mounted on heat sink. Thanks a lot!

OMG thank you so much !! Mine had the exact same problem I did exactly what you did and now it's working great again !! I really appreciate that you took time to do this video to help others like me :D Many thanks to you

Thank you! This is most informative.

Nice Video! That was the exact problem with my Samsung hpt4264x/xaa. The annoying problem is solved!! Thanks for sharing the knowledge!!

excellent, very well explained! i will try it on my panasonic and will give you a feed back! thanks...

Yep works. TV has been on for roughly a year since this mod, running strong.

Thank you, I was about to order a board on ebay when I came across this video, it was exactly the same problem and solution :) You saved me $140.00. Thank You Andy

Thanks, saved a lot of time finding this myself! :D TV Works now, same problem!

Just watched this video because I have this tv with some caps that are squeezed out. I have the kit, and a decent weller solder pen but never done any soldering on small components. TV clicks when it gets turned on but nothing more. I would have liked to seen you actually doing some soldering and maybe some of your setup. I will check some of your other vids and subscribe. You may have some videos that demonstrate what I'm looking for. I'd like to learn to do more of this type of work. Thanks for sharing.

Excellent teacher,same thing with my set,,,,many thanks...Luc

Thank you for a very Good video my tv works like a charm now 😀😀😀👍👍

Thanks you helped a lot. I had the same problem with a samsung ps42c62h. It has the same power board. Got it from my grandparents because it didn't work. Now its mine and it works fine ;)

Thank you so much, my tv is working now, same tv same mother board

Great video, Thank you! I have an HPT4264X/XAA I'm trying to fix and it appears to have the exact same power supply board as this video shows. It was having the issue you described here in this video, but then unfortunately it went a step further and had a loud pop and never would come back on, constant PS cycling. will not turn on anymore. Upon inspection i found 1 capacitor swelled on the power supply board. I removed the board and found that same transistor/fet you had to resoldier in this video had been smoked, traces blown. I ordered the parts from Mouser, cleaned up the traces and reattached. I've gone threw and checked voltages, not getting but a tenth of a volt at the ac checkpoints and the 5v/12vdc areas I'm getting 8/10ths of a volt. Ive gone through and done solder work on all the areas you showed in this video too, still no go, clicking away. Any suggestions? Thank you, I appreciate you and what you're doing here.

Thanks. Got mine working like new again thanks to the vid. Nearly threw it out!

Thank you so very much. The TV is running, cost, $10 for the soldering iron!

Thanks man. I bougth a hpt5034 yesterday. It has the same problem.

thanks for the video buddy. i been in electronics for eons, i am sure i could have found the problem, but i cheated and looked for something on the net, just to save me time, this was the fix to the problem i was having, not as bad as the one in this video, but enough so that i had to use my visor to magnify it enough to see it.. i resoldiered anything on a heatsink just as you mentioned, even the ground tabs on the heatsinks.. thanks again..good video..

good video, very professional

Thank you for your helpful videos. I am having a similar issue with my LG 55 la6200. The picture and sound cut on and off suddenly, followed by a popping sound. After leaving the tv unplugged for several hours the set cycles "on" as soon as it is plugged in without using the power button. These cycles are now very rapid without much picture or sound in between. I'm thinking it's the power supply. I am interested in your opinion. Thank you!

Thanks buddy! Worked like a charm!

Thanks for this video. My Samsung just crapped out on me. It had been doing the turn off with the cycle click on and off. it would turn on unless I unplugged and replugged the TV. Its a PN60E7000. I just took the back off it and I was hoping it would be a blown cap because that is where my knowledge ends for this kind of stuff. I gave it a one over on the back and I couldn't see any loose connections. do you think there is something I missed or is there anything else I can look for? you used a lot of terminology I'm not familiar with so I would appreciate any help. I really feel like I could fix it if I knew what to look for. thank you!

we have a htp5064 model, does the same philosophy you share here apply? it is doing the same thing except the tv can run for up to 20 min and then click off.

Thank you! It worked!

Have a 50inch model with exact same power supply board. It has an occasional delayed startup, i.e. hit the button and it will start 15 minutes later. Once it is on it stays on. Not sure if I will be able to tell by checking voltages since it only has the problem intermittently. Since this is one of the models with known bad caps, Im thinking it might be the caps, going to try swapping them out but Im not sure which ones I should replace. Have two identical TV and opened up the working one (intermittent one is wall mounted and need a friend to help), but dont see any bulged ones. Seems like the 6*1000uf/25v and the 2*2200uf/10v are the common ones to go out so I plan to swap them, but not sure if I should swap any of the other 21/29. Was considering following options: 1) Just replace the 1000/2200uf caps 2) Replace #1 plus the other

What wattage iron should I use in order to not harm the board? Any recommendations on a decent model for not a ton of cash?

Thank you!!! breakdown solved but maintaining the image is not whole, and not clear. Do you have an explanation? Thank you

Thank you!

TV Model: Panasonic vierra 42" Model TH-42pD60U year 2006 Comments: i had an issue with the blinking code(7 blinks of death) so i replaced the SC and SD & SU buffer. Now my tv turns on with no problem , however it turns itself back off for about a minute, then back on for about 30 seconds. Also i need to disconnect the plug from the wall outlet for a while, otherwise it will not turn on, another word the relay will not click unless it is unplugged for a while! I checked visually for blown or inflated Capacitors/filters on the power supply but everything looks good! and now i also got no sound... please let me know if you have any suggestions for me to test. I also tried soldering everything that is mounted on a heat sink + capacitors like you showed on your video, but the problem remains the same!

My 50inch come on then as you said it will make that popping sound and get off. Still looking at your video so I could fix my TV

very good tutorial

Many thanks. Do you need to be aware of high voltage in caps? I've got the clicking problem. I need to be super aware as there's pets running around. GREAT JOB.

Will the BN44-00162a board work in the HPT4254 unit if not are there any other power supplies that are interchangeable with this unit.

My 4254 started with the cliking sound and shutting down a week or so ago. Today it arced. Took out the power supply board, found a bad solder joint on the source lead of one of the FETs. Soldered it and touched up the leads on all the semis on that heat sink, put it back together and it arced again. Anyone have any ideas?

Thank you!:)

so it's not the the twin relays next to the lower left plug? cause that's where it kept clicking, and when I nudged it the clicking stopped for a second or two.

Can you give me some advice on fixing this exact tv. The fuse keeps blowing out. I noticed spark always comes from the diode DP801. I tested it and its shorted. I don't plug anything to this powerboard except the ac connection. Everytime i plug in the ac plug the spark comes out of the diode and electricity in my room goes out. I have to go to the circuit breaker every time. Where can I buy this exact diode? How do I look for these parts? Where do you live in norcal? lol

Hi and thanks for your video. I have the same model and my problem is the Ve=13v instead of normaly 96V. What can i have to change plz ?

Do you do computer Logic board repairs videos? PC and Laptops. Thanks

Same thing happened on my set, except there were also a few bad capacitors, and the FETs were blown.

If it should be able to run from about 80 volts to whatever the main filter caps will tolerate. You will have to do the math based on the rated voltage taking in to consideration the 1.414 multiplication rule when rectifying ac to dc without power factor correction. What is the back label of the set say as far as voltage?

I have the same fault on a samsung PS50C450B1W in ireland. When you say you hear a pop in the speakers,is it the bing bong sound of the on off sound? Have you had any 50 ins samsung plasma with a similiar fault? (TV ABOUT 2 YEARS OLD)

I had the same problem. After inspecting all contacts of each component using heat sinks I found a suspect, which didn't even look like it had a crack or anything. However, I checked if it was moving at all and it was moving slightly. After I resoldered it the problem disappeared. I also resoldered many other suspected contacts.

The label says AC 220 - 240 50/60Hz 380 watts, But on the PSU is has 110 - 240.. I am seeing what options I have on where to get a PSU from. Going by the model number of the PSU it should work on my TV? Why have same model numbers on the PSU otherwise. Thanks for your help, I have a better understanding now.

I have been extremely happy with my HP-T4254 until tonight. It's switching on and off on it's own just like this one. I hope to be able to fix it as easily as you have this one. I don't own a soldering iron, so I'm going to have to pick one of those up first. I did call Samsung before watching this video and they said it may be a bad capacitor, and might be covered. I don't know... I have to call back to the "capacitor dept" tomorrow. If they have a department dedicated to bad caps, then that's not a good thing imho. Caps are so cheap. Why don't they just use Polymer, or Ceramic instead? Electrolytic caps are just asking to fail, imo.

I have the same problem on my HPT5044X/XAA, I replaced the main board, as it was cheap to buy, but no dice, going to pull the power board off this weekend, and hopefully find the issue

Hi. I have the same TV. Makes clicking sound wont turn on. I'm gonna give it a try taking the board out and checking the solder pts. Any other tips for this fix? Thanks

Im having the same problem and when I opened it up its the same lose pins! Only difference is the black thing the come out of on the other side looks like it "exploded" both side pins where they go into the plastic broke out. I have no idea on this stuff, would you happen to know what that part is called and if I need to replace or just secure the lose pins?

Hi my plasma tv stared acting up today an when I pluged a new Crod in to it it would click an try to turn on then I hired like a cooking sound any ideas what could of happen or what is happening

Hi My Samsung ps-50q96hd tv has this issue. When I turn in on it clicks once then video (like vertical lines comes on the right hand side and then I press the buttons on the side then I get blue jittery screen) also a loud speaker static sounds comes on suddenly and then it then clicks and turns off. What is the issue with this? I have opened the back up and tested disconnected every wires from the powder supply board (pspf531801A) and then connected one by one and tested it would only click when I connected the main board (the one with the vga and scarfs and other connectors ). I was wondering if you could help me out. Thank you so much

hi need help have a plazma ps50q96hd starts clicking wont turn on has light at front had un plugged the main board from the power board then the clicking stops but tv wont even power on no light at front or any think can you help thankyou

nice fix.

Have you encounterd the same type of soldered connection issues with larger Samsung plasmas.

whats the va vs points that u measure

Nice Repair Vid :)

Hi I have the same tv. I have re-soldered everything that’s mounted on heat sink but after 5-8mins having the unit turn off and turn back on. The caps looks good the board doesn’t have any burnt component. What can I check next?

good question!!

Hi, Wonder if you can help with an issue I have on a Samsung PS50A656T1F, it has a BN44-00222A PSU.. If you try to switch it on quite often it will come on, but some times you hear the PSU click and it will not switch on, Any ideas please?

Hi i have a problem with my samsung 50inch plasma tv. It powers on for one minute and voltages are good then shuts down en won't power up if i unplug te tv an plug the cable back it powers on again. When tv shuts down the standby voltage is good only 5,3v is 0,6v and 12v is 0,6 volt. Al capacitors are good. Do you have experience with this problem. Thanx

Is it possible to get the cover off without taking off the base mount.? I'm afraid to remove all the bottom screws and have the tv tumble off the base mount..

Hello a have same problem whit my tv. Weell i found this tv samsung plasma in outside the apartments close to garbage container in nice condition. I take in put in my apartment to plug into the wall power,, the tv turn on. But 5 minutes later turn off in a heard noisen in the rear la clik clik clik in desconect i view videos in you tube for problems in this tv can you tellme maybe what is the problem whit this tv???? In how much is the cost for repair,,, i prosseire your help thank you i like yours videos

I have the same power supply (Numbers match) What I like to know is the power supply able to handle 240 volts (I am in Australia)? I noticed on my board it supports 110 - 240 volts. My Samsung has the same issue, but on mine the display is not working.

Have replaced capacitors and re-soldered the same pins he did and still nothing, just clicking over and over again trying to turn on

Help my tv is clicking on and off a dozen times before it will turn on normally, tv is Samsung hps4273x/xaa, power board is pspf391a01a, bn96-03252a. Any suggestion? Thanks in advance

can you explain to me why the back cover is hard to remove? I tried on my tv but it's stuck as if it has a screw mounted on the back. Also when I check I see no extra screw, I removed all of them and It's stuck in the Center. Thanks.

Hi guys. I have problems with my power board as I found one mosfet cracked FQP9N50 and I have changed them both and another one was dead SD20N60, KA7815E, I have change them both but stil doesn't turns on. I have a click but not loud enough and I don't know why? I have checked the diods in those areas but they are fine. Tonight I will take all the diods and transistors off from the radiator to check them. Any ideas? Cheers

never mind, got it solved.

Hi my pn58b540s3fxza keeps turning off on its own. Doesn't try to power itself on like most problems I see online but just turns off after it's been in awhile. Sometimes it turns off right after it is turned on, sometimes it goes a whole 30 mins, if left idle, it was on all night once. I really Don't know what to do at this point. Should I replace the whole power board?? Please help!!!!