Learn From My Mistakes, Valuable TV Repair Lesson Learned PT2

[@yrtuag]

Takes courage to admit a mistake publicly. Doesn't take away from all the value you've provided in the past. My hats off to you. Enjoy your channel 👍😎🤠

[@chewyervin]

It takes a real man to admit when he makes a mistake, good job sir

[@sonydroid2253]

I have been a subscriber for many years. What is better than your generosity in sharing knowledge is your humility in highlighting an oversight that you made in diagnosis of this TV. You are a class act Sir, so rare these days. I am looking forward to seeing the next installment on this TV repair 👍👍👍📺👌👌✌️✌️💪💪😎😎😎😎😎😎

[@kb1kos]

Electronics is ever-evolving, so we're ALWAYS learning.

[@injoelsgarage3934]

Nicely done Paul. Are you going to have a part 3? Replacing the logic board? Thanks again. Joel

[@frankl1955]

Don’t feel bad, I’m 64 years old and have been into electronics for +50 years and I still get ahead of my self. I try to remember a lesson from the Cleveland Institute of Electronics from back in the 80s about Humility and Confidence and the pit falls trying to prove yourself right. Bye the way if you get to the point that you stop making mistakes, its most likely due to death. Keep the videos coming I have learned much from you and thank you for it.

[@TampaTec]

Thanks Frank 👍

[@thegun1649]

Honest and Crystal clear young man.

[@ranytravis4953]

Your an honorable and honest to admit when you make a mistake. That's why I watch your videos...no B's just truth. Great job.👍👍👍👍😃😃😃😃

[@jp040759]

I always double check what I think is a bad part after I take it out of circuit. Saved me from trashing good parts many times. You always learn something new every time you work on stuff. Never assume past experience is 100% correct. Great series.

[@randallhicks3341]

You are doing a great job keep it going. I'm 59 and still learning You aren't by yourself.

[@jasonkok174]

Qualifications are not important. The saying goes.....Experience, is the Best Teacher.

[@davidnowakowski3471]

I've been a electronics technician since 1969 & an engineer w/BSEE 1973. Even now I'm still learning & I've made mistakes as the one you did. In that I've seen certain problems over & over that required the parts replacement, that's when you get lazy then replace the common faulty part only to find out it was a fault somewhere else. It happens.

[@darrenmac8377]

Greetings from London. Just to say thanks for your videos. I've learnt alot.

[@tray4351]

Brother, you have taught me so much. You have a degree period and continue to educate others. Thank you so much. You are brilliant.

[@miked1365]

Your troubleshooting skills are excellent. Most people do not appreciate what logical systematic troubleshooting looks like. Like you I went to a private trade school like ITT and received an awesome education. I took the next step and took the CET exam from ISCET back in 1990 when they were still around. It verified to me that what I learned was valid. Watching you on this video reminded me of my own learning curve back in the day of crt tv, vcrs, band amplifiers etc. Now retired I take on occasional repairs as a favor. Keep up the great work!

[@ryanwadsworth2180]

I always enjoy your videos. I work on TV's myself and it's very easy to miss something. We always kick ourselves later. Look forward to more videos.

[@Mymatevince]

Great video Paul, you have saved others from making the same easy to make mistake. Personally I like it when KZbinrs show when things don't always go correct. People will learn more from this video than a 'how to' video as you explained your thought process. If you replace the logic board in Part 3, it would be great if you could get some measurements between the new logic board and faulty one to see if you can pinpoint the faulty component. Also what is that tube of white glue that you used to stick the transistors to the heat sink....is it thermal paste? Big thumbs up from me :-)

[@TampaTec]

Great idea! Thanks

[@RPRosen-ki2fk]

Sharing mistakes with us is just as valuable as all the other stuff you teach us. I want to thank ALL the kind commenters that share their experience, making your channel a enriching forum of knowledge. This is why I'm your sub Paul, THANX.

[@kb1kos]

The tech who never misdiagnoses a unit doesn't do anything. BEEN THERE, DONE THAT. And I retired ten years ago.

[@thebigwhitehorse6228]

.....Experience is the best educator..........YoutTubers are an extra bonus....😉..........An extremely valuable bonus......Much Love💘......... ....🔥🔥🔥....Great Channel....🔥🔥🔥

[@davenay1645]

Don’t beat. Yourself up. That s. How you learn. Your doing fine

[@davenay1645]

Check for a bad zenor diode on the five line on the main board

[@TampaTec]

will do

[@TodKarlson]

Admitting & learning from your mistakes is a valuable trait.

[@electronic7979]

Helpful video 👍

[@Youngbloodmelv]

Honestly your videos always help me alot

[@TampaTec]

thanks but this time a viewer helped me :)

[@jmarent435]

Watched the video before this and this update. You are an AWESOME young man. I very much enjoyed listening to everything you had to say. I will continue to watch more and more of your videos. 1- question, does the high voltage disapate when the TV is unplugged or does it need to be bled off like the older tube type TV’s of the 60’s and 70’s. As one of our subscriber said you are a class act for your generosity and sharing of your knowledge and your humility in sharing your mistakes. You will go far in your endeavors. Cannot thank you enough. Jack

[@ostaz007]

Great experience and shout out to David Naylor

[@jayesjjani2278]

As usual valuable teaching as usual

[@louchitchat]

I appreciate your tips and instruction , thank you.

[@JO-qe5or]

great videos, thanks for great information

[@davenay1645]

There also was an issue with caps on the power button board. TrY unplugging thenpower. Button

[@TampaTec]

thanks for your help, ever think about uploading some tech videos sharing your knowledge? If so, I will sub to your channel for sure.

[@saddle1940]

Make a serial connector and see what the processor on the TV is whingeing about. TCon not communicating can also cause this. Check the fuse and the generated 3v3 on the TCon. Also there is that problem with the older 47uf tantalum caps on some Sami main boards. Finally, the eeprom for settings might also be cactus (usually hard to find which one some of the boards hold up to 6 of them). Try some heat on it, if it boots while the eeprom is warmed (or chilled), replace it.

[@jeromebarnett7565]

Thanks. Your videos are a great education to all who watch.

[@markymark2460]

well we all make mistakes but thanks to that we all learned a neat trick. awesome video as always keep it up

[@superdon1chw]

my power board for roka tv was 42.00 delivered easy to replace thank for teaching me something of value

[@LoneTaurus82]

Didnt know ITT tech has been closed since 2016. That was good information in itself since im a electronics/tech savvy guy and was always on the fence about going to for profit tech schools like that. The stories about their degrees not really being worth their expense seems true as well as you noted.

[@spiranca]

Bravo, appreciate your honesty and we all learn from mistakes.

[@walker55able]

This is how we all learn. Keep the faith! The main logic board caps esr is worth checking out of circuit.Keep going all the best with it☺

[@johnsradios484]

Keep doing what are doing. You will only get better at it.

[@GrantsPassTVRepair]

I've also made this kind of mistake on many occasions. You lost some times and money, but learned another valuable lesson you can take with you. :-)

[@mmuller3233]

Thanks and I hope this TV has a part 3. Very interesting and informative.

[@ILuvTrading]

Nice lesson.. this is an older video but showed up on my yt homepage today.

[@TampaTec]

Cool thanks

[@RobertoSantiagoRodriguez]

Thanks for the video and the help. I am looking for a power board for a Sanyo DP37647. Do you have a favorite place to order parts from? Thanks again

[@deangreenhough3479]

Mistakes are part of the journey🏴󠁧󠁢󠁥󠁮󠁧󠁿 that actually means you learn more with each one. The hardest ones stay with you 😁

[@moccoman316]

I have a D65u D2 tv.. where the picture goes out. and sound stays on. if you power off the unit and back on. the picture comes back.. where is a good troubleshoot place to start? From your vidoes im now a subscriber, extremely helpful. I don't believe there is backlight when picture goes off. or image through flashlight test. Im not sure if I should just start replacing boards until the problem doesn't exist..

[@km4lkx497]

Hey man, desoldering braid works much better than those damn suction extractors IMO.

[@romaldothomas8653]

Thanks for sharing great video

[@malcolmclarke3963]

Does the trick you use in this video, to test power after unplugging the main logic board work for all tvs or just Samsung? Thanks

[@cotto887]

the trouble is in the Maine logic board. that was a good trouble shooting Technic .well explained good job. there was a short in Maine logic board

[@mondocjenson-dy8zd]

Do you have any videos pertaining to the Vizio LED Smart TV series?

[@001alski]

Good way to learn I'm having the same problem with my XBR-65X900E .

[@coolraul71]

What's with the SCARFACE Music?!? I LOVE IT!!!!

[@Aepek]

I was gonna suggest this same step, unplug main board cables from power board etc.....but I assumed that was one of the first steps you did. Oops.... But hey, mistakes are okay, didn’t hurt anything, & allows other ppl to learn. If no mistakes are made....learning could become boring at gimes😉😅. Still a great vid, & enjoy you trying to fix/fix old TVs 👍🏻 Cheers🤣 Adding this for ppl new to repairs. First, test all parts you receive, BEFORE, start using to replace on boards etc... Secondly, Please make sure the Power Board (capacitors, resistors, transformers) etc....”EVERYTHING” on the board is powered down/off, cuz getting hit w/ electricity is sure not fun...it sucks

[@rajendrakolte3323]

very critical problem solved. thanks.

[@lgjsurveillance]

Wow, I was surprised that you too went to ITT and everything you said it's the truth I got 2 student loans one from TCi and another one from the wow it took me years to finish paying

[@Wolfensptz]

Hi Paul! I am really enjoying learning from your Video's! I was wondering if you could give me any tips on this Samsung set problem. I have a 2009 LN46B650T1FUZA set that works great, but all of sudden the screen goes Black. The Audio is still playing. So i figure it is a component that is heating up and dropping out. I turn it off and let it cool for 15-30 min and then turn it back on and it works great again. Then about 30 minutes later it goes Black again! Have you seen this problem before and what causes it? Any help you an share will be great appreciated! Thank You, and keep on making your great Videos!

[@Aepek]

Is power connector on main logic board just bad? As that can be replaced. Is there any test points on main board for that connector to see? Could also try tracing the “short to ground/or no power issue” on main board before spend the money & replace entire board..... Would be a cool vid to see too, especially, if you’re able to find cause & repair w/o spending the money for a main logic board. Thx again, cheers 👍🏻

[@TampaTec]

I'll try few things before buying a board. I did price a main board for $55. only 1 left in stock.

[@johnjeson3052]

I HAVE BEEN A T.V ENGINEER FOR OVER 45 YEARS . EXPERIENCE IS HANDS ON THE JOB THATS WHERE IS ALL THE KNOWIEDGE.

[@Thomas72B]

Measuring the voltage without load is not enough test to say that the power supply is ok. I would measure the 5V connection of the logic board, if there is a short circuit (0.6 ohms for example). Important! The logic board must not have any connection to the power supply. If there is no short circuit the power supply still has a bug! Sorry for my bad english!

[@cotto887]

feather trouble shooting on Maine logic board .Tampa tech good job

[@KR-sh6rm]

Love your videos! I always learn something new and interesting!! Question for you, I have a 58 inch 2008 3D Samsung plasma. The plasma is getting dimmer and dimmer. From what I understand, this is just a fact of it getting old. Is this correct? Is it time for me to get a new TV? Thanks for your help! And hello neighbor, I'm in Wesley Chapel!

[@TampaTec]

Plasma TVs are known for that after 5 years.

[@KR-sh6rm]

@@TampaTec Thank you! Time to start looking at the TV sale ads I guess!

[@bolon8200]

Great video tampa tec

[@xTHETRAINx]

I have a KDL55W802A that randomly started going into a reboot loop... I turn it on and it resets itself over and over, especially when introduced to load, IE: opening the home menu, etc. I already have the mainboard and T-con board replaced about a year ago. Do you think this is caused by a faulty power board?

[@kerrymathis7639]

Hi so I plug my TV in and it comes on then shortly after turns off with a pop. I do not want to order the wrong part so do you think it's the main logic board or power board?

[@attainteddragon]

thanks for posting my comment (though no mention). :( only samsung LCD power supplies have the pull up resistors. though since your stby 5v was the issue, you would still see it by disconnecting it from the main. you probably don't have an eeprom issue, as you have an issue as it is switching, so a transistor, ic or cap is probably pulling it to ground. you should also disconnect the t-con and try to power up. most likely not an issue, but always confirm if it is or not. i'll see you over at badcaps if you get stuck. :D

[@TampaTec]

Great advice once again, this time I'll be sure to give you credit and shout-out. Maybe I'll do a repair series that viewers can give tips and if it helps then they will win a prize, like an Amazon gift card. 🤔 What do you think? This way everyone learns, even me!

[@attainteddragon]

@@TampaTec there is always people that want to learn things from the basics up. i was thinking about doing a similar thing with some guys that i help out with on a discord server (they are watching along with this by the way). sort of a to and fro of information and going over why things do and don't work. the great thing is that you have the audience to make a big difference, so i think that it would be a great idea. i'll be there doing my bit. :)

[@THOMMGB]

Hi Paul, Is there a rebuilding kit for the main logic board? That would seem to be the next logical step. Regards, Tom

[@rogertyler3237]

Check For Loose Conntions Too.

[@frankwagner2161]

Right on point, experience best life teacher!

[@baileys6346]

@TampaTec If a Power Supply's 18-pin Power Wafer is giving higher voltage readings than the Technical Service Manual shows ... (Standby normal voltage is 3.5V, showing 7V. A couple of the 24V pins are showing ~55V once the power button is pressed) ... would this indicate that the Power Supply should be replaced? Standby light is not lighting up upon plugin. Audible clicks are heard after pressing the power button, and the main board light turns on, but no image is seen. It's an OLED TV, so there is no backlight. The TV has been able to turn on properly, very rarely. Most of the time, there is no light or ability to turn on. This is my first attempt at repairing any kind of appliance, so any input would be appreciated.

[@vpnrouter]

Your videos have helped me a lot - thanks. Can an ESR meter like MESR100 V2 be used to find which small surface mount capacitor is causing a problem on an iphone logic board. I know how to find what line has a problem but can an ESR meter be used to test small SMD capacitors in circuit? Or do you recommend any other methods?

[@ratcat7668]

Hi Paul. (I'm Paul too) Great video very helpfull. I am an agent for Hisense - Kogan and TCL. Normally I just guess and order a new board but I should troubleshoot a bit more. Cheers.

[@winstonclarke9221]

Great Video👍, Can bad LED lights prevent your TV from starting up.

[@TampaTec]

Yes, bad led strips symptoms are no power, flash on screen followed by TV shutdown or TV turns off by itself after awhile. Defective LCD TVs before 2010 usually was bad capacitors, LED TVs after 2010 usually bad LED strips. Hope that helps.

[@winstonclarke9221]

Thanks.

[@majo0413]

Mr. Tampa Tec, on my LG 65 inch LED tv i already replace all the board [ power board, T-con board and main board but still not working just the screen turn light blue and no picture and no sound plus my tv not staying on..please advice.thank you.

[@גבריאלישר-ת3ח]

I still think you were right in your assessment that the power supply card was knocked out. Just because you check it when it's not connected and gives you five volts does not mean it's OK. Because the capacitor may have been knocked out and only under load can you notice it (when the power supply is connected to the logic board)

[@shifty2755]

I've learned something from your mistake dude. So it was worth it. Great video.

[@josephbonello163]

Love your work

[@BrianDorset]

Disconnect the "PS_ON" wire only between the mainboard and the power supply and see if the TV works normally. If the TV works with that wire disconnected check the switching transistor on the mainboard that switches the "PS_ON.

[@SuperJonesVideo]

I have the same TV I'm pretty sure, LN46C630K1FXZA SQ05. No backlight. I get a standby light, and shows images (and sound) on the screen with the flashlight test. I can't find any videos specific for this model to test the power supply. Watching this though, I did unplug the PS from the MB. No backlights... Are you supposed to turn it on? Or will the backlights just go on as soon as the PS has power and the MB is disconnected? Pretty lost, looks to be a nice TV, I'd hate to scrap it. Love your channel BTW, no shame in a few failures in R & D. I figured out electronics growing up next a thrift store as a kid in the 80s and picking receivers etc. out their dumpster and fixing them. Or when I couldn't, smashing them good to let off some steam... hehehe Thanks in advance for any help.

[@butchbrown1582]

I have a Vizio 65in 4k P602UI-B3 The TV comes on and half the screen works. The other side has Multi colored lines about 3in wide about 4-5in from the edge of the screen. Sometimes one of the lines will be a solid color. Any Idea?

[@johno7808]

Admire your honesty fella! 👍

[@samuelhepburn2636]

You're the man,I've learned alot everyone makes mistakes

[@notajp]

Unfortunately this testing procedure won’t work on “one board” TVs like the LG 43LH5000 I just fixed. It got taken out by a power surge during a storm. All it has is a combination power supply/main board and the T-con board. Fuses good and no obvious damage on the board. Very difficult to test due to the board design. Replaced the combo board and all was good again!

[@TampaTec]

I had 70" sharp tv that was indirectly hit by lightning, smoked power and main boards. Both boards cost me about $120. Electropartsonline.com

[@markhen51]

can you please tell me where I can get a t con board for a sony tv model xbr-75x850d

[@TampaTec]

Shopjimmy.com or electropartsonline.com

[@markhen51]

thank you

[@peng28]

THANKS YOU FOR YOU VIDEO. MY tv has this problem too.

[@midnightdragonfly7574]

Hey, Tampatec! I enjoy your channel, learning a lot! Thx! I have a question.......what would it do if the Tcon board voltages are not the same? The Tcon board that came in my TV is part number 404652ASNC6LV4.5 I ordered a new one and 404652ASNC6LV3.7 was delivered. Now, my screen is blank. I'm guessing my problem is the voltage on the Tcon board?? Please help! Thx! Aly

[@MITE58]

Hey Tampatec can you help me i have Sharp tv model is LC-55CUG8052E and its stuck on color test...changing the colors nonstop...red,white,blue,dark and etc...

[@carlos_ruiz_castillo]

my respects to you my friend, you are such an honest person and sharing the mistakes benefits un more than only the successes, subscribing...

[@rmill3983]

do you sell part over on ebay seen a photo of you selling tv parts??

[@tksethoa3325]

Where can I place my order for a Sharp screen LED TV

[@xerejuneseve6333]

It is good that you want new knowledge,this increase horizonts.

[@camurgo]

Hey man, what happened to that Fluke 12 featured in previous videos? Would you have any interest in selling it? And do you still have its holster? It's kinda hard to find that model these days...

[@jannesalo5089]

Hi! I have LG 42LG3000 TV which produces randomly bad picture like infobox doubled or black screen only one line, but starts working after shake tv, where is problem? Checked capacitor on power supply and replaced one, cleaned panel connectors but problem exist randomly.

[@rogertyler3237]

All Right Solid As A Rock

[@erickelly8704]

Hello i have a samsung series 8 65 inch the light gone but still have screen image only year old have u come across this?

[@ach-eww1866]

I recently did a backlight replacement on a 65 inch Element tv, got it all back together and the right side of the screen(when looking at it from the front), is darker than the left. I tried taking the ribbon cables out and putting them back in but it did nothing

[@dpsamu2000]

Here's a question I have a 40 inch dynex DX-L40-10A flat screen tv. Plug in gets a click on power supply board, two seconds, and another click. Then red standby light on front. Power button on remote gets a click and red light turns blue. Power supply reads 5 volts on 2 standby leads. No blown capacitors or any other obvious signs. Still tv don't turn on.

[@josealeman691]

Don worry mate you are not the only one, I bought and alternator for $300 and the problem was the alternator belt, when I checked the alternator it didn't have a belt on it, then I went to buy a belt and payed another $30 that was a big mistake that I learned next time check first then buy the componente. Would be be nice if you do another video about the main logic board and find where is the componente that make the voltage drop down in the power supply board.

[@shamrock1961]

Doesn't these TV's have online service manuals with schematics showing the boards and their voltages etc?

[@TampaTec]

Tv model Service manual for customers are different than tech version.

[@CoolgearTV]

Let us know if you need anything for upcoming projects. Love the channel and we're happy to help!

[@reydsting1030]

Good job sir

[@vipercrescent6858]

I love this video is great you made mistakes. and you keep going thus good...