SSI 400 14A01 Inverter Repair

[@Alex-xf6ff]

Thank you very much for this Vidéo. I figured out that the MOSFET were burnt. So I changed it but it burned and burned again each time. With you video, I discovered the issue of solder joints. So I cleaned them up, put solder points again, and new screws. No more problem then for me. Another piece of information that could be useful for everyone: I had some 0 ohms resistors that also burned. So I had to change them. These resistants supplys the GND and 24 volts for the MOSFET. So I reckon it is because of the MOSFET blow out. Hope it can help and thank you again for the video.

[@itsypitsy]

Thanks a lot for sharing, my TV is working again! Your advice not to unscrew the black tab probably saved me hours of work. Tips like those are pure gold!

[@squeakal3393]

A very very informative and educational video mate. I learnt so much from this and cannot thank you enough for sharing your knowledge. Have subscribed obviously and look forward to more content from you.

[@Sloxx701]

You can lift the black plastic retainer that the inverter plugs into that also has the connections for the CCFL bulbs inside, I do it all the time to test CCFL bulbs when I think one is bad. Simply remove the screws, raise it up gently and use a prop, and use a CCFL tester to light the bulbs individually. This allows you to easily check individual bulbs without taking the entire tv apart. This exact inverter board is used in a lot of tvs apparently, saw the same one about a month ago in Toshiba I was working on. It was a failed bulb though, not the mosfets. I was going to attempt to just bypass one of the bulbs, but you can't on these because as you said, 4 bulbs are driven by one transformer. I could have pulled one pin off that main IC to ground but that would have bypassed the entire feedback/protection circuit. Strange design I think they used just to cut costs.

[@muhammed201]

Hi Dacke. İf we lift the black plastick and than can we put and pinch? Any problem if we lift?

[@reacey]

I'm working on one of these inverters atm, 3 of the mosfets were shorted, and when I replaced them and turned it on, they shorted out again after a few seconds, the 3 nearest the small transformer coil, q307, q308 and q309, do you have any idea why this would happen, could it be that a faulty bulb would somehow feed back into the fets? Any advice would be greatly appreciated, thank you

[@walker55able]

Thank you fpr sharing Your video had helped today as i needed to replace inverter board not dissimilar to yours .fingers crossed it cures the 4 blinks issue with my Sony kbl 32v lcd tv☺

[@MrReeceyburger123]

No worries hopefully gets it going 😎

[@walker55able]

@@MrReeceyburger123 yes thank you It seems fine now

[@MrReeceyburger123]

@@walker55able ahh nice work glad you diagnosed it successfully 🥂

[@bobsoft]

I did this repair with a kit from Shop Jimmy. It lasted a few months then it started to go dim again. Wish i knew about this video i would have went over it again checking solder joints.

[@MrReeceyburger123]

Ahh no, guess that the solder joints do cause the blow outs then.

[@kanchour16]

Well done 👍 very informative thak's for sharing m8

[@vwsculler]

You are the best!

[@araposman2]

süper sağlam ustaynış

[@MrBilbo44uk]

We all used to moan about this stuff, and how crappy it all was, then LED backlight sets came along and all us TV repair guys virtually went out of business within two years, for a while I was repairing the LED sets but when every single set came in with exactly the same shorted leds and buggered psu in some cases, we lost the battle....

[@yahiravery2097]

I dont mean to be offtopic but does anybody know a trick to get back into an Instagram account? I was dumb lost the account password. I would love any tips you can give me.

[@phillipmanuel3346]

@Yahir Avery Instablaster ;)

[@yahiravery2097]

@Phillip Manuel I really appreciate your reply. I found the site through google and Im trying it out now. Takes a while so I will reply here later when my account password hopefully is recovered.

[@yahiravery2097]

@Phillip Manuel it worked and I actually got access to my account again. I am so happy:D Thanks so much you really help me out !

[@phillipmanuel3346]

@Yahir Avery happy to help :D

[@robviously-rob0ts]

Thanks for the vid. Any idea what the difference between LT-4014-1 AND LT-4014-2 would be?

[@simonvann7270]

great video, i have a problem with the same board thanks to your video i found the fets at the bottom have blown last 4 and lower fuse, do i still need to change the SEM2107 controller IC?. will be ordering parts this weekend.

[@REVERSE_BIAS]

Hi mate. If the 3 fets are in parallel, is there any chance one or two might be OK? As you said, all 3 will show as shorted, but they of course will do if only 1 has shorted. Just wondered if once taken out of circuit you'd ever tested some OK.

[@ВячеславНеважно-у2т]

Добрый день. Какой номинал у Q216 (ZH/BI)

[@vravicoumar1903]

நன்றி......

[@wayneheap8261]

i had the same kit done tv to day all working now but no need to replace ic just fuse and 3 mosfets

[@MrReeceyburger123]

Cool :D

[@saarike]

Nice and good information!

[@MrReeceyburger123]

Cheers :D

[@RichardHollowayGaming]

I pulled the black plastic bit off too, now im screwed as I cant connect back to the back light!!

[@tdomingues89]

Thanks for the video !!!

[@MrReeceyburger123]

No worries :D

[@akuotoko]

Hi! Do you know what voltage the inverter board sends to the CPU when working properly? Or a way to figure it out... Any advices?

[@HighCompressionII]

About the grounding-points round the set-screws.... Best remove ALL the solder with braid leaving them bright clean and tinned only. You Do Not want to apply 'blobs' of solder on each pad, Leave them bare, just bright and tinned. Reasoning being--Solder is a soft material. cooling/heating of board will make the solder layer deform to the point that the screws become loose and a poor connection, result--arcing and destruction again....! --Ali (BC)

[@MrReeceyburger123]

Thanks for the info bud will give it a try next time :)

[@filipbueno]

I was wondering if you could help me out. I have nec p401 monitor which also has this inverter. Something started to trigger protection, after disassembly i've noticed while powering on there is an arc on one of the inverter to bulb connectors. I took off the black panel that sits above the cathodes which you said not to remove and 2-3 sockets were more or less burned. Would you be able to tell me what is is the fault? I've metered components like you did and they seem to be fine. Thanks in advance.

[@simmak3k721]

NICE AND GOOD VIDEO

[@leonjohnsonjr3331]

I CHECK ALL THEM BUT ALL THE MOSFETS ARE GOOD AND FUSE

[@MrReeceyburger123]

Please post on badcaps.net.

[@reacey]

I'm working on one of these inverters atm, 3 of the mosfets were shorted, and when I replaced them and turned it on, they shorted out again after a few seconds, the 3 nearest the small transformer coil, q307, q308 and q309, do you have any idea why this would happen, could it be that a faulty bulb would somehow feed back into the fets? Any advice would be greatly appreciated, thank you

[@MrReeceyburger123]

Did you ever fix them ?

[@MrReeceyburger123]

Carbonised lamp connectors can cause blow outs and high resistance transformer.

[@reacey]

@@MrReeceyburger123 yeh you're right ,it was crap connections at the tubes if i remember

[@MrReeceyburger123]

@@reacey awesome man, I’ve got some new videos up if you ever get bored 😄

[@reacey]

@@MrReeceyburger123 will definatly watch them mate , i watch anything you put up cause i know you know what you're talking about , you know these boards/tvs inside out

[@justinmason8120]

So say you happen to pull the black bar off. What is involved in putting it back on? I'm getting ready to basically deconstruct the TV since that sounds like what is needed.

[@justinmason8120]

Never mind! Two hours of my life I'd like back, but...not impossible. Glad I caught your video before trying to install the new backlight!

[@cdserviciosysolucionesc.a.8742]

Hello MrReeceyburger12, I would like to know if you can help me, I have a Samsung LCD TV Series 3 Model LN32A330J1. It has 12 Transformers and 12 Mosfet 4614, similar to 40014A01. The fuse of the inverter card was damaged, and also the third moset from the bottom up. There is a possibility that I can eliminate that simply mosfet and also that lamp. I think that only 1 lamp of the 12 will not influence the lighting so much. Thanks in advance with the help you can give me

[@leonjohnsonjr3331]

ALL MY MOSFETS GOOD AND THE FUSES IS GOOD WHAT'S NEXT

[@MrReeceyburger123]

The IC ?

[@lucrewfan6855]

Thanks for the video !!!

[@fcolon1976]

What are the parts number please?

[@marijanstimac2337]

Warum niemand sagt wo kann man kaufen ERZATZTEILE? Z.B. BA0F2U ??SEM 2107 gibt in UK aber BA0F2U nicht!ES IST LEICHT FEHLER FINDEN ABER NICHT BAUTEILEN!!?

[@Basari_Firinci]

How to . part shop adress