Samsung LN32B360 LCD TV REPAIR Voltages and Troubleshooting

[@francoisguyot9770]

This is probably the most helpful troubleshooting video that I've been able to dig off YT. Thank you for this precious tool.

[@PeterKiryluk]

I have learned more about repair from you then from the crappy schooling i had. Thank you!

[@THOMMGB]

Just found one of these TV's on the side of the road the other day. Plugged it in and it seems to work fine. But one fine day it won't, I suspect. Your video will be exactly what I need to get started troubleshooting. Thanks so much!

[@cubanosoy50]

I am subscribed to some other similar channels , but, honestly , this is the best , is clear ,simple , direct and the the best part is that the tech guy, knows what he's talking about . thank you Sr.

[@mauriziomartelli2163]

All your videos are very good but this one is excellent, and not like a classic repair of capacitors! Cheers from Italy

[@pauloconnell7820]

Excellent tutorial, best one I've seen yet!

[@K1ZEK]

Great video Thank you for taking the time. Because of your past videos I repaired my TV instead of throwing it away.

[@norcal715]

Awesome thank you!

[@chuckdavis3968]

Excellent video, so by testing the voltages on the tcon and logic boards the way you just did you will know if the part is working or not? Testing the fuse on the tcon and those inductors and coil fuse should tell if the tcon is working or not? thanks so much

[@ITWorksSoftware]

It would be helpful to know if TV is unplugged, plugged in (standby mode), or powered on when you are performing the tests and where you have the negative probe attached to...for us noobs. Thank you for all your informative videos, I'm learning a lot.

[@johnmcgiv1]

Hi just a question, I was trying to measure voltage on leds but was confused to what my results were. I measured from each line to ground different values more voltage on negative line. Reason I was measuring no backlights but screen text was ok. No 24v for leds one leg was 0v the other 40v leds in series, any clues would be welcome. I have watched many of your videos and was really impressed with your straight forward and direct to the point way of presentation, many thanks.

[@norcal715]

Get an LED tester and that will give you a clear voltage of each LED string. This one or similar. www.amazon.com/Backlight-Adaptive-Voltage-Testing-Suitable/dp/B081TBH7YP/ref=sr_1_3?crid=30HXOQD3JQL8&keywords=led+tv+tester&qid=1645580445&sprefix=led+tv+tester%2Caps%2C122&sr=8-3

[@pedroasberth]

Brother, thanks 4 your well explained electronic info. GOD bless you

[@idrissasylla9157]

THANK YOU FOR THE VIDEO, VERY INTERESTING, I HAVE A SAMSUNG LN 40C630K1F , IT DISPLAYS IMAGE FOR SECONDS AND THE IMAGE GOES OFF, I HAVE SOUND, SO I SUSPECT THE CONVERTER BOARD. WHAT YOU THINK ?

[@romello6719]

Hello norcal question ,where do you place negative lead when you make measurements on the hot side of power supply

[@dsmall7777]

I have an LG 50-GA6400-UG Same scenario; picture goes out but the sound works well. I can see the picture in the background with a flash light . The inverter board was replaced twice and both times failed within a week. Could it be something else that is blowing these boards or did I get bad used boards?

[@mohadidido1520]

Hi, great video, I need your help if you do have time, I have a samsung un55d7000 with black screen, no sound. No backlight but when I remove the flex cable going to the main bord the backlight will light up. Further when I keep the flex cable feeding the main bord and remove the flex cable of t-con board that come from the main board, the backlight will come on. According to your expertise is the t-con board going bad ? Thank you

[@tonyperry6702]

Is hot ground the neutral leg of the incoming line on the power supply board?

[@darshansinghjatav7820]

thank you very much for post this video. no doubt your explanations are great it's really very helpful.

[@paulmiller767]

I know this is an old video. I have a Samsung le40n87bdx that I’m trying to fix. I’ve got as far and my standby voltage being about 1.8 when it should be 5.3.. it pulses to 13v as it’s clicking off and on. I’ve changed 7 capacitors and tonight removed the ones I’ve changed because they didn’t work. Trying to think of where to go next.

[@davecc0000]

Great per your usual. Did this one have no issues? Or did you fix it before recording? Sorry you don't have time to show us more. But happy to see what you can upload.

[@Drvanosdrand]

can you tell me with a Dead board , no red light no blown caps what may be somethings to check and what the voltages should be

[@jorgeurbaez9138]

The backlight sometime turn on and sometime it doesn't , when it doesn't I don't see the signal inverterON/OFF, I have audio. If the tv doesn't turn the power factor correction doesn't go on, I could make the backlight go on by unpluging the power from 110vAc and plug it again. Were should I focus my problem , on the power supply board or the signal inverterON/OFF from the main board ? what could be your best guess on what to change if is the power supply board?

[@TboneLoyal]

So where would you probe on the hot side to check voltages? Ive only seen people use the main grounding on the box for everything. And would this be how you use an oscilloscope on the hot side. Since you have the grounded loop of the mains ground. Thanks for the info.

[@norcal715]

On the "hot" side, usually the negative terminal of the bridge rectifier/main filter cap is hot ground.

[@TboneLoyal]

@@norcal715 Thank you. So using chassis ground on the hot side or the electrical side would potentially short out the DC,backwards filter the ac to the dc on other boards? Im new and learning all this. I am one of those who have to understand why. Thank you.

[@MarcoRodriguezSupra]

How can I test the output of the backlight inverter safely to diagnose bad inverter boards?

[@samueln.waweru4406]

Thank you for sharing your knowledge and skills with the world. I am informed!

[@palacem946]

Thanks a lot to show this video and learned me to much how to repair electronic appliances...

[@Darryl603]

Another great video! I have a Sanyo 46" set and I was curious if you see alot of these come through your shop? Thanks for posting and I look forward to more in the future.

[@johnblom1927]

hi, i have a samsung TV model LA37C530F1MXRD with Powerboard: BN44-00339B. TV standby light on, but TV won't turn on. checked powerboard, can't see any bad caps or anything obvious. When I put my meter on 13V pin on connector, I see voltage go up to about 13v, then drop to 0v, then back up, like it's turning itself on/off in a cycle. Same goes if I put my meter on 24V pin on the connector going to the backlight module. If I disconnect the cable that goes too main AV board, the 12V pin an 5V pins shows stable volts. (not cycling) does that mean main board is faulty, or can it still be the power board? which pins can I short (with resistor) to turn power board on while main board is disconnected, so I can test PSU voltage while board is on? thanks!

[@groovejet33]

excellent......really excellent video, everything i like in a electronics video..... well done

[@jorgeluisvargasramirez7011]

hi sr. is there a way to fix a plasma tv samsung 50" PL50C450B1D IIT HAS BLACK THIN LINES SIDE TO SIDE THE SCREAN STARTED A FEW OF THEM BUT NOW IT HAS ALOT OF THEM AND NOW THEY LOOK THICKER CAUSE THEY ARE APPEARIN G CLOSER!! THANKS AND KEEP UP THE GREAT VIDEOS!!

[@kenpappas9520]

I have this Samsung, steady 5 volts but my 12 volts are jumping all over the place? What may be the problem? Using a new main board.

[@danteaguila2233]

Nice video mr. Norcal I learned a lot from u Continue posting interesting and informative video may the Lord God bless u always

[@andygantt5580]

Nice video -- Your explanations are great...

[@Eeropolvasti]

Please, tell me, how to check voltage/ working functions on Samsung UN60EH6000F T-con board. TV has no picture, but audio OK?? In smaller t-con boards problems many times is Cap.#CD31 and Transistor QD2. Would they be same numbers/models in this bigger TV, 60 inch?? If not, what numbers they are in mine?? And how do I test them, when power is on?? Thanks, one more question: can I replace UN60EH6000F to UN65EH6000F, would that work just fine?? I have one extra one like that! Thanks, youtheman =)

[@giorgostexnikos6976]

best video ever.amazing.thenks

[@bellamarie8504]

I have a sony bravia lcd tv kdL 46S2010 and periodically it will go black but green light stays on I press menu go into external inputs then go to the input I'm using and picture will pop back on any ideas? thanks mike m

[@mohamadarahman6243]

Hi, sir I have a sony klv 32bx320 ser. no. 3238055. The problem is when I switch on the power , the red led is flashing 6 times. before that indicator illim. is green for sometime about 5 sec then sound come out like a noise. After that red led start flashing 6 time. I have check the power at pin 3 is 3.3v and 24 volt to inverter is ok. Reg. 12volt to main board ok. What I suspected is back light inverter. Do you have a diagram for it or what else should I do. Any suggestion from expert. Thank you for your help.

[@radwandiesca3215]

Thanks for helpfull video... hoping to follow all your post.

[@LookingMercury3D]

Very complete and Clear.. Thanks

[@anupbalharpure]

pls give details of : BN44-00606B power supply board

[@shakiransaridilliwale4765]

Sir.this model t con board full volts data check plz.

[@josephmelville9141]

hi I have that same TV but the power supply turns on by itself even if the main board is disconnected. help me please

[@alstevens44]

Nor, so where the 5v standby supply come from

[@donpixote3321]

clear and concise and informative to boot

[@saarike]

Nice and very informative video. Thanks!

[@Rmysterio124]

hi i have a 60" samsung tv 60EH6003FX831A BN94-06143A with sound but no picture or backlight what could be the problem?

[@maktsor2715]

Your explanations are great

[@tvsales3895]

samsung ltf320ap06 double image problems....... Plz solution

[@domingohipulan5977]

Class A video the best the best thank you.

[@louissmll]

greetings the video is great. I have a question 2 ask u I have a Samsung smart led tv that have lock out model # un46D6003sf unable 2 use the onboard remote the smart remote do u have resolution this

[@GrooveAddix]

Replace your "IR Sensor". Check Ebay to find one for 8 bucks..

[@kennethpappas]

where did you find schematics?

[@norcal715]

most of the time there were no diagrams, just a knowledge of the working set. Others were from when I was a authorized warranty station for those brands. elektrotanya dot com is a good resource for manuals also. Thanks

[@HWWoodard]

@@norcal715 Ha ha. I got everything right on the site's test for registering except the last question on how to repair a switching-mode power supply. of course...

[@scottkapanowski8731]

norcal714, I wonder if you could take the time to help I know your very busy. I have a sony plazma pn60e530a3fxza no pict but sound it started slowly not coming on everytime after about 8 months would have to turn on several times to get it ti go. one day would not come on at all. ive relaced x and y sus boards locic smps and y buffers I get a blink every 5 seconds on logic when I unplug y sus I get a blink every second (which I guess is proper) all votlages are good except ve wich is not good until I unplug ribbon connector on y sus when I apply power it tries to go I hear audio chime which tells me so ...if you have any ideas would gladly love your help if you cannot thanks anyway scott

[@rocxylemmon8535]

very great illustration

[@Emiliopedo]

i have a problem with my tv is a vizio e221-a1 and dont turn off is just the black screen with the led on and that's it, Iopen it but i dont touch any thing because a dont now if is dangerous o not some parts of the tv. if some one have idea of what is wrong please help me

[@TheJavaSync]

Great explanation, Sir - love dis vid, very much .. more vids, pls :)

[@mbayendiaye5383]

thanks you It's a very good video

[@keysseniceros5543]

Wow! Thank you for posting this video!

[@leonguerrero3630]

damn this is good stuff bro.. keep em coming

[@rsattahip]

It would be nice to have a TV that turns completely off like the old ones used to.

[@masoudmontazery907]

HI, every post of anybody is only an experience of him, other people that has question must has basically knowledge about subject, if you have not knowledge abouts, you will having somany problems,that's why if anybody answers to your questions atleast you have other problem very soon,than at first you must to studies about very seriously.

[@khaledbmw99]

that right you must by study electronic or telecommunication engineering

[@starcruise12345]

nice explanation!

[@saarike]

Great videos.

[@jamespaterson7597]

very interesting thank you

[@ramdurga6722]

your genius slr

[@bkDmitry]

very informative

[@HariHaran-gy9dc]

very use full time

[@michaelchan6681]

Anyone has experience on fixing no picture on Pioneer Plasma TV Model PDP-610MX

[@MrMac5150]

A-1 video.

[@alibehrouz9833]

thanks

[@NunYa953]

I watched this video 2 years ago and had no fucking clue what this guy was talking about. Watching it right now I understand everything he is saying. This means he has either gotten dumber or I have gotten smarter...

[@2211-q7f]

bu ticegt tanisdi

[@HWWoodard]

This is a great video and got me off the ground in my troubleshooting. I have this TV and it boots as soon as it's plugged in and then re-boots in a non-ending loop. Well, almost non-ending. A couple of times, for no readily apparent reason, it has come on, stayed on, and operated perfectly until turned off [by IR, side switch or unplugging] at which time it goes into the boot loop again. Every measurement is exactly the same as in this video (kzbin.info/www/bejne/pZTUn6Sjd92cp7s) except for pin 1 on the ribbon cable connecting the power supply and the main board. It reads 1.2vdc all the time instead of the 0vdc/2.8vdc shown in the video. If I ground the pin it, of course, stops the looping but then it doesn't come on either. If I disconnect the pin it reads .8vdc on the power supply side and 2.96vdc on the main board side. I would expect 0vdc for off and 2.8+vdc for on as indicated in this video and it appears that Q302 on the main board is the pullup/pulldown switch but I haven't detected any voltage on the base so I would expect 2.8vdc on pin 1 unless something on the power supply is pulling it down. The power supply side doesn't look like it could ever get over the .8vdc EB breakdown voltage of QM802 so I'm at a loss as to how pin 1 could ever get to 2.8vdc. I've seen posts that have a similar symptom - continuous rebooting -- and they found bad caps. I have removed and tested just about all of them and found no issues. I have a schematic for the power supply but have been unable to find a schematic for the main board - BN96-11408C. Does anyone know of a schematic -- either official or reverse-engineered?

[@reparosinfinity]

blz

[@CarlosRoberto-uf4vf]

os vídeos do norcal715 me ajudaram muito o cara é bom hein.....

[@geoepi321975]

3 to 7 years is a disaster

[@BigEightiesNewWave]

Made in TJ of suspect parts LOL

[@LagrangePoint0]

I have the same tv, but it doesn't turn on easily, only after hitting the power button for several minutes non-stop, what could it be?

[@norcal715]

Its probably got some failing capacitors in the power supply. Heat it up with a hair dryer and see if it powers on faster that way.

[@LagrangePoint0]

@@norcal715 Yep, one capacitor was bad, a 1200uf 10v was bulged, I replaced it with a 1000uf 16v because it was the only I had with the closest specifications. Should I replace it with a cap with the same specs or I can leave the one I used?