Easy common fix Toshiba LCD TV, troubleshooting dead TV repair review
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- Опубліковано 1 сер 2024
- Easy common fix Toshiba LCD TV, troubleshooting dead TV no power repair review, r850, q880, q860, Q820 fuseable resistor and voltage regulator common fix for Toshiba TV models 42ZV650, 47ZV650, 46XV, 55ZV, 42RV, 55sv, 52xv, power board number PE0702, PE0709, v28a000962a1.
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Help us Hit 300K subs and Grow Subscribe/Like for FREE Tech support- Please post "TV model" and "problem" and i'll reply with a common solution. Support this channel by getting a Capacitor kit for TV board repair- amzn.to/2gEH5Lt Thanks for the support! Let's bring back TV repair! Follow me on Instagram for giveaways and tech reviews instagram.com/tampatec/
Hey Tamptec, I'm new to the game; however, I have fixed two out of three displays so far using your advice, and based on percent chance that capacitors are the problem. I tried troubleshooting the power board on the LG 32LN570B-UH; the board is a EAX64905001 (2.4). Because I can't currently afford the Fluke meter, I am using a simple multi-meter with resistance, AC, and DC modes. When I tried reading the pin out I was at first getting less voltage than the 3.5, and 12, and 24 volts specified; the voltage was moving slightly. So I tried to read the voltage regulators and found that the voltage was jumping all over the map, peaking over 1000 volts, and following that reading the pin out was not reading any voltage. I have all ready replaced the caps on the board; However I suspect the voltage regulator is the problem. It seems there is more than one regulator, and the pins on each are jumping around. How can I determine which regulator is the bad one?
I also found this link to the TV power board schematic: schematicscom.blogspot.ca/2016/07/lg32ln530b-led-lcd-tv-power-supply.html
Hi I am wondered watching people fixing tv's, you are in Florida that right?
Here in my country most tv repair shops are closed.
I am in electronics for 40 years but I repair treadmills and some other things,
I have a lot of work.
Is posible to earn enough money fixing tv's?
Please comment.
Cheers.
Tampatec hey mine made a pop then turned off but a couple days later it was fine for like 3 hours then it shut made a blinking green light then shut off
Tampatec I have a Toshiba 55 Led tv replaced fusible resistor now I have stand by volts but tv still won't turn on.
Q880 is the 12 volt IC regulator and Q840 is the standby 5 volt IC regulator.
This video you made saves me hundreds of dollars from buying a new tv. I just went through everything you did on same model toshiba tv and it was that same fusible resistor that was gone on your that was also gone on mine. A 3.00 fix and my tv just turned back on! My hats off to you for this very valuable video you made!!!! Cheers
Just repaired my 46" Regza using this video. Everything in the video was spot on with my set. It had just shut off one day and no sign of any power. Soldering the voltage regulator's 7 pins back in was a challenge- i feared that maybe i crossed some pins but it turned on great!
Thanks for your service bro, much appreciate. Not everyone has the disposable mindset. Haven't tried it yet but you know your stuff so I'm not sweating it.
Have this exact model of television and experienced the same issue. Purchased a new television anyways but got my fluke meter out and began to troubleshoot my tv after seeing this video, and found the same symptoms. Ordered parts and just installed them earlier in the evening and got my Toshiba up and working again all thanks to this video.
Thanks for the vid! I have the exact same TV and it had the same problem where one day it wouldn't turn on and had no standby power. I would not have known how to begin troubleshooting the issue but using your video I replaced the fuseable resistor and voltage regulator and boom, TV works again. Hopefully it works another 9 years!
Thank you for sharing this video, thanks to you I was able to fix my tv for 0.30$us, just by changing the resistor. Again thank you for helping common people to achieve this.
Thanks dude!! Toshiba crapped out after 8 years and I was going to chuck it until I saw this video. Up and running thanks to you!! You made it easy.
congrats fixing your tv
Hey buddy, thanks so much! You're the best! We have the same model and fixed it for $0.95! Got the resistor from A1 Electronics (in Canada). Also watched your video on how to de-solder and solder a circuit board....really can't thank you enough! All the best :)
Tested the TV as done in video and for $18 bucks got all the parts to fix, thank you
Awesome to see someone so close to me! i live in Port Charlotte FL
(1-2 hours under Tampa) Thanks for the video! Found one of these at the side of the road and the R850 Fuse/Resister was blown. The regulator tested fine so im gonna order some resisters and see what happens. Keep bringing the helpful vids man!!
My man, you are doing divine work for the community. If you're ever in north Alabama, give me a buzz because I owe you a beer!
Fixed my tv for 0.68$ with this guy. Awsome! Thank you!
Lauriston Alex congrats, not many people are willing to fix their TV.
Thanks for the video. Fixed this with 5J2R0 fusible resistor from Fry's Electronics. The 5J2R0 was a suitable sub per some other online documentation. Didnt have to swap out the Y6456 Voltage Regulator; which, was a good thing since they didnt have any locally and there were no suitable subs for it that I could find. Whole cost was $1.59 for the 5J2R0 fusible resistors and there were 2x resistors in the package, so I have a spare. This TV is 9yrs old is now new again and save hundreds in a new TV.
Thanks Again.
Forget the thumbs up, I Love You! Thank you for being so detailed in your video's!
Was given a Toshiba 52", did the trouble shooting discribed in this video. Ordered the parts and hope to have it running for under $20 including the soldering iron.
Cool! Just pulled a Toshiba LCD TV out of the trash. No power whatsoever so I'm gonna try your troubleshooting tips and hopefully get a fix. Thanks.
Stephen Scutt let's us know if you fixed the tv. share your repair
thanks for the help just fixed my tv for 3 bucks because of this video. thanks again.
Wow same fuse problem with my friend's tv replaced with Panasonic 2.2ohm 5w and it Works !!! No other problem Thank you very Much !!!
Great Video...looking forward to watching more! Kept a 4 year old 46" REGZA LCD Toshiba in storage (for 11 years) after it quit working...and want to revive it now. It's a quality TV that I just can't throw away. You are helping me learn how to diagnose the electronics...and I'm anxious to see more of your posts. I'll purchase the capacitor Kit from you if I find they are needed....and I've Subbed. Thanks.
Hello, first of all, thank you, great video. I have a 55ZV650U TV from 2009, it's very good, and today, for the first time, it didn't turn on. I checked up to the resistor point, and indeed, the fuse resistance of 1.8 ohms 5W is open. Tomorrow, I will go look for a replacement or something similar. I hope that with this, my TV will work again. Thanks again.👍
just repaired my tv because of this video, thanks man!
I want to give a shout out to Tampatec. Followed your instruction and TV is up and running. Thank you!!!!!!!
thanks
Man, I would like to learn as much as you do.
I ended up bringing home a 42" model like this from an electronics recycling place that I go to every week.
There's a bin outside people put stuff kn and sometimes it's just laid outside of it as the bins are usually full. Anyways, there was the 42 and also a 62. Most likely the same person as they were side by side or front by front of you will lol. I didn't want to lug the 62 on the bus myself so I left it.
So my friend who showed me the place originally went there yesterday early morning and picked up the 62 I didn't tell him it was there or anything and when I got to his place last night I said does that one turn on and of course he says yes lol.
So now I'm going to attempt these repairs. The red light isn't on or anything at the moment. Great video though I can't wait to try it tonight.
Nice work amigo ! Thanks for the very informative video.
I actually just had a service call tonight for the 55zv650u with the same problem.. Having watched this video awhile ago it was a walk in the park.. Thanks man!
sweet, check out my blog tampatec.blogspot.com I added most common tv repairs page. bookmark it
Will do! Thanks
Thank you for posting this. My roommate has the exact same tv and displayed the same problem. But the standby light comes on and glows steadily. When I press the power button, you can hear a relay click twice; nothing else. So I'm going to see if this is the problem. Thank you for your informative videos.
My TV is alive thanks to you.
Power board PE0546 ... r850 dead.
rené Doyon thanks for sharing that info I'm sure it will help many people.
Hi, I have the exact same TV and exact same issue power. It worked okay last night and this morning it will not turn back on. Checked the power source that it works. So, I am going to have to troubleshoot like you did. I just wished you are/were close to where I am (in Midwest). So, I could just ask you -:). But THANKS a lot for the video. I hope I can fix mine. I really like this TV as the picture quality is much better than many other more expensive TVs I have seen. Thanks again.
We just had this exact same problem! Our TV would not turn on, rather than looking for new I found this video, since I am a gas tech I had my multimeter.. and exact same fuse is bad for exact same reason as this video lol. So hoping today the repair store has the part and can hopefully de-solder and re-solder it for us since I don't have the iron pen. Seems very simple to do, I will have to invest in this!
Scratch this, its impossible to get the dam parts, so trying to find where to just get a new power supply board, and can't even manage that around me (Ontario Canada) .. so tv back together.. not gonna be fixed.
Saved my TV. Thanks
Another Really Brilliant Video.....Thanks so much for sharing your knowledge and time.
Thank you very much, this information is priceless...
thank you very much you are a god mechanic. please include more about SMPS power supply and problems of that...................
great video! thanks for sharing
HI thanks for this good video keep them coming 10/10 marks.
I have a really old tv toshiba TP43H60 made in 1999 and i had the same problem. all i had to do was unplug the tv, then hold down the power button for 45 seconds, then plug it back in and turn the tv on and it worked! :D
For some reason, I decided to listen to your comment & try it on my tv, 2013 Toshiba. It actually worked! I’m not sure what the issue was or why holding down the power button works when it’s unplugged but it did & I’m grateful!
Worked great thanks!
Thanks for the videos. Mine is a Toshiba too, the only pin with voltage is one labeled "5VCC" the reading is 5v so I assume it's ok. The problem is the TV makes a sound through speakers when I press power but it never turns on, green light flashes for a fraction of a second.
Learn something new everyday!! thanks
any time, knowledge is money, you can make money fixing tvs or save money fixing your own and save not paying extra for extended warranty or find a broken tv on the road to fix and sell. sad that tv repair is a dying trade, I'm one of the last of my kind, that's why I had kids so I can raise more tv techs so tv repair art will live on, kinda like disco but way less groovey.
I also am the only one in my area that does it. It's nice to have a community of repair folk on UA-cam and the web to learn from.. Thanks again..
***** I took tv repair classes in 1978, we fixed vacuum tube tv's. Later I worked in a shop and fixed transistor sets. Now I'm trying to learn LCD tv's, thx so much for your videos.
dammn bro I've seen a lot of videos of u fixing tvs.. u should help me or teach me.... I fixed a few tvs myself, thanks for sharing ur videos bro... u should make a tutorial video on how to read capacitors and resistors etc etc etc...
Thank you! It worked!
so good thank you so much for your sharing ...
Great Video Gentleman, thanks! Is there any way I can get a complete board like that one the one you use for this video? Thanks again for sharing!
Thank you Tampatec ;)
thanks alot
thanks for your info
Thank you so much for sharing your knowledge,I have a toshiba 46sv670u,it went dead after lightning hit,couldn't find a power board supply for it,any idea where I can buy a cheap power supply board?thank you so much
Very useful info! Thanks! Do you know how to access the service mode for Toshiba Regza LCD TV 32LV733G (2010)? I had to change the main-board but the new one is from a 40 inch set and I don't have good picture. Thanks!
very good thank you
Thanks man,
Got a $5.00 42" TV.... price of the fuse and shipping!
STR-Y6456 is power IC for quasi-resonant
switching type power supplies, incorporating a power
MOSFET and a controller IC.
great video. do you have video on how to fix Toshiba 46rv525u that is stuck on initial setup language screen?
thank you I well try
This information is very helpful. I have replaced the caps on a HannG 281 D Monitor power board. It has a PHIHONG PSM217-404-H-R switching power supply board. The monitor started and worked for a short time then stopped altogether. When I removed the board it had a small surface mount cap C404 blown. I would like to replace this cap but I can find no reference to its parameters. It is parallel with a 35V 470 uF Cap located at C403 so i am thinking it is on the 24V rail on this power supply. It is located adjacent to that connector on the board. The pads look like they will receive a 2.5 to 2.8mm long ceramic surface mount cap. I notice there seem to be a number of these on the board in parallel with the larger 35V radial caps on the other side. Is there a resource that would give me the parameters of these caps identified by their placement number on the board?
Can you help at all with this? Thank you.
Great Video, I have that same board and had some what of the same problem, I had no 5v stby and changed the v-reg and the same bad resistor and now I have 5v to stby but still doesn't turn on, the relay clicks now when i unplug and re plug power.
any suggestions ?????
Heatsink compound, like Thermal Paste for PC's? cos i got loads of that.
i have a 52" Toshiba regza and I may need to order the power board and some other parts. The model no is 52XV645U
Great video thanks. I have 5Vdc but no 12Vdc. What do you recommend?
Thanks! The repair cost me $29 I got the parts from Amazon
Toshiba PE0702A (V28A000962A1) Power Supply Component Repair Kit
Hi Tampatec, I have a Orion SLED4668 and my issue is that, the standby light is on when plugged in but when I turn on the the TV, the standby light goes out but there is no picture or audio. I took the back panel off and tested the fuses first in circuit and found the 1 amp fuse to be bad. What suggestions do you have for troubleshooting what may have caused the fuse to blow in the first place. I'm thinking that maybe there was an electrical surge that caused it. I also checked the surrounding capacitors and diodes in circuit and they were all good. Thanks!
I have power on my Toshiba 32c110U but no picture. Do you recommend that I replace the main board
Ever replace smd type capacitors on a main board? Would that cause only 5v stby on power board but no 12 or 24 volts? I noticed two seem slightly bulged.
Can you please tell me where to get the fuse resitor the same one that you replaced mine is bad as well and probably the voltage regulator. Thanks
great video I have same problem where did you get the parts?
HI you're very good on what you are doing.i have a Toshiba TV 55L621U just flashing the logo then shut down . please let me know if you can help
Hey I need help! I've came across this video 3 weeks ago with this same TV power supply board you have, I have the 46XV645U model. One day the TV just didn't turn on the next day after a thunderstorm week although the TV was on power surge bar protector. I suspect it's the power supply board, so I did some test read and found out that the r850 fusible resistor was failing diode test, no alarm sound on the multimeter; and so tested for ohms and was nothing. I now switched that 1.8Ohms 2.88Watts I think with a 2.0 Ohms 5Watts one, waited 2 weeks for this part from China. The standby pin is now giving 5.04 volts DC and constant at 5.04, not fluctuating (so my power regulators are working fine) but the TV have no standby light and will not power on. When I plug in the power cable, you can hear a click from the TV, sounds like those old tube TVs when they turn on or off with that click. Do you think my next problem can be the main video board since I have no standby light? I read the 5Volt pin from the video board after connecting it to the power supply board and I am getting the same 5.04V read out, so I'm puzzled. I just ordered the video board from amazon, last one on stock, thank God. I just want to ask you if this is the right route since you said 5Volts from the power supply should give you standby light, mine didn't give a STBY light and TV didn't turn on. Sorry for this long non-sense, hope you can help and maybe help others. By the way, before my Fusible resistor came, I switched out the STR Y6456 power regulator thingy, pins' positions were correct but I had to bend them backwards to solder it onto board facing the other way. I also replaced the two bulging paired capacitors 450v 150uf, still nothing helped...checked all other two fuses and diode tests lots of other parts all fine. Thanks in advance!
im having some of the same issues. bridge rectifier working properly, no fuses tripped.
I had the same blown fuse as in your vid. replaced the fuse and regulator. not working still, I checked and rechecked the soldering points and fuses, they're good. Not getting any volts at the TV PWR wire (where you checked for the standby volts)
Any suggestions on what I should check next? VVVVVVVVVVV
I want to add that I'm getting 3 sets of three blinks and then a steady green light for about 15 seconds before it goes out.
With probe, found out that one of the fusible resistors (RGDU5M-5E) is wide open, so went ahead and ordered from ebay, 5J2R0, supposedly a suitable replacement (yes?). Question: Couldn't I just replace the thing with an ordinary 1.8 ohm resistor? What is this supposed to do, besides serve as a fuse with a certain resistance?
nice job
nice thank a lot
Hello, I used your video great job Thanks. I have a question part #str y6456 9402A is the part # on my voltage regulator but when I look for it online they only list str y6456 do the last 5 digit matter? thanks
Hey how are you, I want to thank you for all the videos you post pretty cool stuff. I just have a question for you if you can please help me. I have a toshiba tv that went black. When I would turn it back on it'll turn off after like 7 seconds and now it just flashes the logo and turns off. Also the front little red led flashes 5 times. All the caps look good on the power board I'm not sure which board is causing this problem. I would really appreciate a little feedback thank you again.
Hello, I enjoy your videos a lot. I checked and need to replace the Sanken str-z2589 8629. Do you have any ideas on used or new places where I can find it? I called mouser but they do not carry this brand nor could cross ref it!
What if I doo't get any readings on my bridge rectifier, when I test it either on DC and AC side?
Is 4.98 volts too low? I had the same problem, did the repair to the power board (same parts needed). Thank you for the information. Unfortunately now, the output is now 4.98v. Still no stand by light.
Where can I order the parts you replaced? My TV totally fits the readings from this video. Any info is appreciated!
Thanks for this. What music did you use in the background?
Hey, where did you buy voltage regulator str Y6456 9008A ????
How bout power comes on then goes blank but power indicator stays on but dim? Thanks for the tips really says me $$$.
R850 is in-rush current limiter. Clean relay contacts otherwise it will blow again.
P.S. I would not screw the back until I check that TV actually works lol.
very helpfull...bro could you help me ..like i have a Sony Bravia ex 400 and its having a problem ...the usual black background went red and the color is branding or fading..can we fix the red background problem and get back to black again? i would be very greatfull if you let us know about it...Thanks
Can you show troubleshooting the power supply for model no 55HTU1, since storm no power at all, checked input voltage is ok, fuse is good.
Congratulations
I have the Toshiba 42ZV650U with the dreaded blinking green power light! I replaced the power board, and still have the same issue. Set appears to hang up in the boot sequence and never finishes. When I look at your work here, it appears that the boards differ a bit. My board is a SRV2194WW, I am almost thinking that something is missing from the set. It came to me as a throw away, and I suspect the previous owner dabbled a bit. I do not have a schematic, or even a photo of this model with the back off. If you have words of wisdom, or would be willing to look at a photo, please let me know. My main repair focus is musical instruments, but this has become an obsession. I want to fix this thing! Can you help?
.Thanks for the video. I have same tv with same problem. after i replace resistor and voltage reg. i got 5 volt but tv still no standby light and TV doesn't come on .Please help. Thank you Aaron
Tampatec
I have 2 Toshiba 46L5200U1 TV's. Both units flash Toshiba for a second then go black. Both have audio. I did the flashlight test, and in both units you can see a display. I purchased one backlight inverter and installed it in one of the units with no results. I removed the new inverter and installed it on the second unit with good results. I'm wondering if the first unit has a bad led strip. I have torn further into the unit finding the led strip (not an easy task, but haven't figured out how to remove it). Any advise for me on (A) Is there anything else I should be looking for? (B) Where would I find a led strip? Not having any luck on line, but I haven't removed the led yet to see if there is part number.
I have a 50 inch Toshiba TV model 50L2300U made in 2013 replaced my boards now i get green stand by light and that is all can you give me any help on this. tHANKS
hi Tampatec, first of all: great video and great channel!
maybe I missed it in your video but what's the name of the device you're using to measure volts and where can I usually find one to purchase?
nice work. i'm still looking for a 60-70" LCD. any thoughts on Vizio e-series reliability? TIA
bgregg55 i do home theater and fix TVs, I fix mostly Sony and Samsung then next Vizio but i would still buy a Vizio cause they are a really good value tv and for me easier to fix than Sony. Buy a TV based on room size not how big the TV is. if your couch is 6ft away from TV go 50-60", hope this helps (sub for more howto tech reviews)
Is the troubleshooting process for a Toshiba 65HT2U with no standby power the same?
Hey, I have a toshiba 47 regza with same power supply. It was dead, I changed the fusible resister r850 ceramic, this fixed it, but week later it blew again. So changed again, but this time green power light flashes 3 times and repeats, when I hit the power button , a relay clicks but no picture. Any Ideas, the stb voltage is steady at 4.92 v .
good video
I have a 32" Toshiba led tv (2012) and originally figured the power board was my issue as l had not a power/standby lite, no leds lighting, no sound/picture, I ordered the power board and just received it today. Now with the new powerboard in l am seeing the power/standby lite and when it is powered on l get a chime, the LEDs illuminate momentarily and l can see the indicators on the screen but then it shuts off and repeats this every 5 or so seconds. I can see all the led back lites are working but only momentarily. I then replaced the mother board as l am assuming this is the problem but there was no change so l assume the main board was ok. I am stumped...any direction would be appreciated. The TV is just a spare and a challenge at this point...l don't want the tv to win!
I changed the power board and now I'm getting 5V out but still no standby light and TV doesn't come on. Should I check anything else on the power supply board or move on to the video board?
Tamp, I have 42rv530u I found the r850 resistor bad, so I change it & remove q 820 to check & dual diodes, when I plug the cord 120 v the resistor blown again. So if you have time pls. Help me what's the problem thanks.
I have a Toshiba 50 in plasma bought in 2005, the red light (power light) was blinking, would not turn on. I unplugged the set, put it back, and the light stopped blinking and wouldn't do anything after that. when I plugged it back in, you could hear it click and power up, but no light or picture. sound like a power supply?
Thanks