HOW TO FIX HP LCD, monitor turns off after 3 seconds (common repair) 

Just wanted to say a giant Thank You! I just used this guide to repair an HP 2509b monitor. I was very skeptical because both lights were going out, but fixing the burned area on a single bulb unit seems to have done the trick. All the best!

This is one of the best how to videos I have ever seen.

Thanks bro, you helped me save 9 monitors for my home setup. I just needed the tubes. What I learned is my tubes were fine after 16 years on HP 1730. What fails on this model is the output coils secondaries. The low height transformers that are about the size of a stamp. These are hard to find so you might have to rewind them. Old HP were built like tanks.

I found this very useful. This eliminates the possibility of bad capacitors. You could easily apply this theory to some issues on certain LCD monitors. I'm not saying it could apply to all, but it could help to narrow down the problem a lot easier. I'll take this into consideration. Thank you for this tutorial.

This video was very informative. My model would stay on for 1 second then turn off. If I had the monitor in the right lighting I can barely make out text, so this led me to believe it was a backlight issue. I was able to make my way into the settings>brightness section and decreased the brightness. I then turned off/on the monitor and it worked. Not sure how long it will last now. But one thing is for sure..the monitor's capacitors (as stated in this video) are more than likely busted.

Thank you! I've been trying to solve this for a month now.

I have a 26" Vizio it turns on and the picture comes on the screen but then the lights just goes out after like 3 to 4 sec. the image is still on the screen but you have to flash a light on it. I thought it could have been the inverter but could it be the led lights like on this video?..

Thanks for the tip on the burned out wire. I took the disassembly slow, but got it done without breaking anything. The monitor is back up and running.

Perfect! Quick with no no extra junk. I just fixed my 22" acer with this problem. Just note that with acer the light test would still turn off after 3 secs - it turns off automatically if no signal detected....

Thank you For this video!!! Found a cracked CCFL was the issue. very helpful, and for all the people complaining about damaging their LCD Displays, you knew better than to mess with this. If you dont know what you are doing, dont try it. LCD Screens arent as fragile as other types, but definitely need careful handling.

Still helpful after all these years. The 3 second issue, and no visible cap issues, caused me to explore into the LCD. Sure enough the ribbon attached to the actual LCD separated, and I was done, but found the source of failure and Ozone smell as a shorting to the metal bulb housing on just one. Any vids on that repair. Could never get even those exercise bike B/W LCD ribbon to reattach, with heat.

I wish i could just bring my monitor to you on screen LOL xD

Some say he's still trying to put it back together 😂

I bought an ASUS VTG248QE 3D 24" monitor to save time. But, your video inspires me to fix my old HP 1259m monitor to use on and older computer at some time in the future. Thank you for a brilliant fix. I hope I can be as patient to do the job as you.

Interesting video. I have a Hannsrpee 25" monitor that is coming on and going off. At first it was on for half a second and I replaced some caps and now it stays on for 8-10 seconds. Since I have it apart, I think I will check the backlights, as I know that is what is wrong with it, because I can take a flashlight and shine on the screen and see a picture. Thanks for this. I'll update when I take it apart further and see what I find.

Hi Master, I had a broken ceramic fuse "F801T3.15A/250VAC". But I can't find this type of fuse in my city. Could you tell me PLEASE, can I use the fuse ""F5A 250V or F4A 250V" instead of it ???

As always.You are right on the money, and I applied this method to my Emerson LTDN42V68US LCD TV. Thanks a mill, and keep it going for the ams like myself

Like the video. My infrequent use server monitor fell on the floor once. Didn't notice any issues at first. Month later I have the 2 second problem. I opened it up. It's a very flimsy mechanical design but the PCB boards are solid and I couldn't find any suspicious caps on the power or video board. I didn't look into the light bar. I am curious: Would an intermittent connection cause a specific timeout in the power to the lighting?

Common fix for HP LCD, i worked on this video all night i hope it helps someone. please like/share/sub get lcd caps here- www.amazon.com/Samsung-CAPACITOR-desoldering-CAPACITORS-Replacement/dp/B008PWWS32?tag=tampfreepcpin-20&linkCode=w13&linkID=&ref_=assoc_res_sw_result_1 #lcdfix #commonfix #easylcdfix #lcdrepair #lcdservice

Sorry I forgot to mention I have the HP 2009m monitor. And thank u so much for this video. :)I accidentally broke one of the ccfls. Where do I purchase another one from? Where's the part number? I'm not familiar with replacing ccfls.

thanks for this video. I tried this. checked the wires of the ccfl and they were fine. checked the caps too. seems good to me. so I tried plugging in just the ccfl bulbs just like how you tested it in the video the the lights continue to work. but when I assembled it again, the problem still exists. And to add up, the LCD now only displays white. I will try to check again when I have free time.

Hanns-G HH221 No video after replacing 7 Capacitors Let me begin by saying that recently this Hanns-G computer monitor started experiencing only staying on for like 2 seconds, there was video and audio from HDMI, there was a slight zap like sound from the back but no other issue, after checking around I learned this is a fairly common problem with bad capacitors, I examined them and found none to appear bulging or burned but seeing how this was the least costly repair I decided to replace the ones that are recommended replacing. So I just replaced 7 capacitors as recommended by the seller I bought them from on ebay, I made sure they were installed properly with the negative side, short lead correctly, made sure no solder overlapped to short anything on the circuit. I put back the CCFL and re-attached the Power board to the video display board, turned it on and now The green light shows there is a signal it stays on when the HDMI cable is removed the light turns yellow like it should,Windows shows the monitor is connected, audio is working through HDMI the zapping sound is gone, but there is no video whatsoever, I mean I shine a flashlight on the LCD and I can't see anything so that kind of rules out the backlight. I also tested it with VGA and same thing no video. I can't figure out what went wrong, I have checked and double checked the Video board cable, the CCFL connectors and nothing, the only thing I can figure is that that it's either the LCD or inverter is now gone and if that's the case I'm done as it's just gonna get too costly to fix. If anyone has any idea what's going on here and what might be the cause please help. Thanks

i replaced every single cap in the power supply for nothing. Found this video and checked the bulbs, and sure enough its the same problem. THANK YOU!

Nice work! What to do if my monitor is not turning on? I replaced my capacitors already? Not sure what else to check?

Great video you make it look easy however Im not confident enough to dismantle my TV so will have to take it to a repair store. How much would you roughly pay to get it repaired? I dont want to get ripped off.

Subscribed. Tomorrow I´ll fix and AIO thanks to you.

nicely done, I wish I'm patient just like you on putting them back together again :( I have a Sharp LCD monitor when I plug the vga cable from a loaded windows CPU it display the windows screen for 1 sec and goes black, also when turning it on. But looking closer at the screen I can see the icons it's just too dark, like off. Do you think this video relates to my LCD monitor's issue? Thanks.

Thanks man! Its super useful and clear. Cheers from México

Great!! it worked, two leads were burnt. but now screen goes blank after few minutes. power off and power on brings it back, it repeats. vga cable re insert will also brings back

Are the four backlight CCFL connectors wired to power 1/4 of the display or are two powering the display and two used to control the intensity of the backlight and if so, which is which? As in which color wires are the power and which are the control, or are they all power?

Thanks for this very very useful video. After a detailed inspection on the supply board, there was no error. Then I open screen and it was exactly this problem. Samsung T220HD

I should have looked this up before throwing mine away. The good thing is someone got it and they may fix it, and I got a freesync monitor now. I needed this kick in the butt to upgrade.

Hi is it possible for the Capcitor to make the screen not to light?

Hi. Can we use the multimeter to test whether the backlight bulb is good or bad? Is it correct that if the multimeter test leads (ohmeter) are connected to each of the pins of the backlight bulb, the meter should show low resistance or the opposite? Thanks

Another awesome video bro! Thanks for sharing your knowledge, you've helped me fix a crap load of TV's in the past few months! Definitely saving me cash!

Thanks for the vedio... just a question, I encountered a simila problem with LG Flatron w2242p monitor which swith off after three seconds.... Is it similar case to this vedio which i can troubleshoot it, or any possibilities there for me go about.... Please I need your ASAP... Thanks Joan Toa PNG

opened up an older HP model W22 ... one connection was indeed burnt through... can't remember which order the plastic sheets have to go (couple of them) before reassembling.

How common is this issue? The monitor you are working on is one im looking at for my computer as a replacement

thank you this is so helpfull

Mine just started to do this. Same monitor. Hopefully i'll be able to fix it. Thanks for the video!

hello +Tampatec mine is hp pavalion 22xi it turns off after 2 hours and i have to unplug it then the time becomes shorter is it the same problem . checked the capacitator on power supply board and they're fine ?! is it the backlight ccfl ? note the lower the brightness the longer it stays

Nice Tip , helpful video came across this several times . Easy to fix once you know , I think this is caused due to the heat of the CFL and perhaps the wire sheaf ( outer protection ) melting

Tnx for tutorial i just fix my canyon 19inc lcd.Same problem picture turn on then off after 2 sec.Really helpful tip tnx again.

Isnt there hi-voltage in modern LCD monitors? Are they safe to open and touch while testing? (I mean: except the 220v power transformator area, of course)

Hello, I opened my HP 2210i monitor because I have no more images. After taking everything apart, I realized that on one of the 2 backlight bars, the neon species are broken at one end (the one where there are the 2 wires). So I can't glue them back together or solder the wires again like in the video. Also, I was wondering where to find the backlight bars to replace mine? The only reference I have is 1P-9CT91DFfN9 and I can't find anything on the web with this reference (even partial). Thanks for your help and reply. Have a good day

Thanks for the video. I just got around to try to fix my monitor. It turned out one of the light bars was burnt out so in the trash it goes. But your video was very helpful.

Is there a way to reattach a TAB bond once it falls off 1 came off while I was disassembling the monitor?

Hi, Thanks for sharing I learned something from all your videos, very helpful. I have this problem for 2 monitors Philips and Benq and I changed capacitors and it is still turning off after some seconds. Everything seems to work. And I used lamps from another monitor and still same and this lamps work on other monitor so I don't think they are the problem. Please help, Any advice? Thank again and waiting for new videos!!!

Can we use the tube outside of monitor and what volt use to tube?

I'm curious if you have any ideas on my "strange" issue with an HP 2311x monitor. It will run just fine EXCEPT when I go to maximize any sort of video or even a picture to full screen and it will then shut off and reboot?! Does that on both a Win 10 machine and on a Raspberry Pi 4.

My HP W-2007 does same thing will it work for mine what your showing here? Thanks love the video

Thankx i have a dell SE198WFP and its exactly the same thing inside, took it apart just like you show on the video and there it was burnt cable disconected from the backlight, so i bridged it and IT WORKED!!... for 5-8 minutes then it went off again!..dang it. why? im just gonna take it apart when i find a permanent solution..maybe you can help me..?

If the problem is indeed the backlight CFL, there is no need to dismantle the monitor further once that is exposed, correct? Seems like you had access to that fairly early in the video but continued to dismantle, why so? I know my hp monitor has this same backlight issue so I'm hoping I just have to go through a couple of the steps shown in your video to get to the backlight wire.

I have an HP LP3065 that, when power button is pressed, will illuminate the status LED green for a few seconds, then orange. Nothing onscreen. Makes a faint clicking noise when on. The computer sees it at the correct resolution. Do you think the backlight is the problem? Thanks for the tutorial btw.

Always enjoy you videos and the info they contain. I look forward your new videos in the future thanks

I suspect this would work for an HP LE2201w as well, as I have a pair of those that do the same thing, and may be able to get a couple more if I ask nicely.

hi, i have reached till the last point of the video but do not see broken wires in the tubes. is there anything else that needs to be checked

Awesome work. Thanks for posting the video. Great help. Great video.

Hi sir does the indicator light at the power button working?

Nice video, pretty useful but small suggestion - show that the monitor is not working before you fix it :)

hey man thanks on covering about the backlight ,totally subbed :),everyone else are on the same boring bulged caps hehe... i have a few question bt fore that ,did you know if you take a torch a shed light directly on the black screen you can actually see the desktop or watever it is being display after that 2sec dissapointment bt on a very dim setting ,thats how i accidentally discovered mine that it had a backlight problem and i thought you could used that info if you by chance havent mentioned it im not much of techie but iv done countless DIY, iv been too uninspired to fix it cos i wasnt sure how id replace or fix the backlight,getting a new one is not on my interest right now cos my other music project needs more funding n right at this stage of the recording i missed and i the need for 2 monitor i once is back,iv been using my note pro for my artwork which was to compensate the black screen lying somewhere now and i saw ur solution got me all excited this single huge lcd tv is not enough, okay enuff usless talk, my question is what if the backlight were beyond repair by your methods are there any possible fix,what are the other common problems and finally could i replace it with these back lght from a 17" lcd i salvaged from old lappies i got like three of them,2 sony viao,one acer/hp i think..thanks once again!

hi i have a acer x223w moniter it comes on the go dark i change out the capacators but the same problems do you think it is the bulb?

i have a hp 2159m an i took off the black frame like you did but my monitor won't pop out like yours did . if you know the 2159m model is there another piece of plastic to take off. i don't want to pry on it and break the plastic , help please!

Hi sir TampaTec, thanks for sharing. I've replaced all the capacitors in in my Viewsonic (its two boards) but it still turns on, then after 30 minutes it'll flicker in 8 second intervals? After the capacitors, with this symptom, what's the next one to check? Thank you. God bless, Rev. 21:4

Is this specific to a given panel manufacturer or panel series?

Nice job.well done. Mine is hp vp17 turns off when get cooled it becomes ok.firstly I am not able to open back cover.Nice to see ur video.,looks Complicate ....???????? TKQ

I have a 25" Hannspree monitor that goes off after a couple of seconds and I'm pretty sure that's what's wrong with it. I can hear a faint"squealing" sound right before it goes off. I can see a picture on the screen if I use a flashlight on the screen.

sir i have an lg lcd 42lc55 and the problem is blinking the green led 7 times after stabilizing about 10 seconds and i can see picture with the help of lens and after goes out do you have experience with similar problem ??

My LCD display keeps blinking on for an instant, then turning off for around 2 seconds, then blinking on again. Sometimes I can press the buttons on the monitor to make the LCD work, but with the backlight off. And sometimes if I spam the auto adjustment button, then the monitor will work fine for about half an hour before blinking on and off again. Help! I'm shining a lamp into my monitor so that I can barely see right now. Not a very good long-term solution.

hi. i want to use those lcd lights for some other purpose. can i just connect them up to a power source and if so what voltage would i need?

hey Yo can you recommend me where I can get the Lights itself from ??? thank you I did what you said everything worked out well, but now my monitor works only with the bottom lights on. The top light "bulb" cracked.

Did he replace the backlight or repair it?

I have one of these (HP w2007v) and it went black. Turns out one of the four CCFLs is completelly burned out, it's not a cable problem. I disconnected that pair and tried a spare CCFL pair from another monitor, not the same size, but just to check, and the screen works fine (apart from the darker bottom, of course, since only the top pair is lighting it). I ordered a CCFL to LED conversion kit, but I foresee a problem: This HP, when one or two of the CCFL pairs is not connected, the screen itself goes to sleep. Since the Leds will be connected to some 12v source, and not the inverter, what can I do so it doesn't go out by the lack of CCFLs? Thanks

brilliant Video, I have an HP Z30i, the back light is working but I am just getting a stripe about 10cms wide from top to bottom any suggestions please ?

Hi would just like to ask i do have a problem with hp 22fi monitor, there is a 1" at the bottom that got dark horizontally. Can this be fix? And how? Thank you

My monitor used to go black after 3 min i changed the backlights but now it turns of after 10 min. Al the capacitors are ok looking, none of them are blown. Any tips ? I highly think it's the power circuit board

Tengo mi monitor lcd q solo seve la imagen en la parte superior unos 4deos seve las lamparas estan bien como se repara ante mano gracias

Hi, i have VK193D ASUS. When i turn it on, after 5-30 minutes, my screen goes off. First the bright goes lower and then black. If i turn it on again, right away it goes black. I need to wait so i can watch it for 5-30 minutes. I think that monitor have heating problem? How you fix that? Is it capacitor i need to change? Thanks.

Hey I have this monitor but it doesn't turn on at all I can heat it powering up so there's power but the screen don't come on at all and the led on button at the top doesn't light up either. Do you know what would be the issue with this?

so i have this problem but the problem is the actual bulb is burned out. Any idea where to find replacement parts?

Thank you for a great vid. I particularly appreciate you fast forwarding through the disassembly, on my side of the swamp data transmissions make a hole in your pocket and most tech videos can be unbelievably painful to sit through. I'll be visiting your other contributions. All the best !

I have an HP ZR24w that I think the cfl is turning off and immediately on again. It looks like the screen blinks. I have two that do the same. Their at least 10 years old but they're excellent for photo editing. I hate to get rid of them.

hi, my blacklight is blinking fast. what is the problem? i wanted to fix it by myself but i have no experience on any electrical stuffs

Don't know if you'll respond. I have an hp 2509b model. Took everything apart and when I power it up one light (top) comes on and the lower gives a low purple glow on one end. I've swapped the bulbs opposite but still occurs in the lower side. All capacitors appear fine.

Hi Tampatec. I have an older Sony Bravia KDL 46 XBR. I have a problem where it shuts off and there a 6 blinking red lights. I had the set repaired for over $300 last year but the warranty is over. I am sure it is a power board issue. Do you have a video showing how to repair this LCD tv? Thanks

I have 24inch lg LCD TV same problem could I fix with this method.

Thanks brother... To solve this problem.. Same problem as here..

Hey *****, I have a very old monitor which I'm using for over 10 years now, its a Dell 1504fp Silver. I has the exact same problem, it goes on and over 1-2 sec. it turns off. i don't think that there is something wrong with the back lighting though, i thinks it's the capacitors as you've mentioned. So what can i do about that?

i'm impressed that there isn't a million screws to it', 'a prye bar an 2' screwdrivers',an 1 driver did most of the work' ''that's bless'''.

My ELO Touch 32 inch ET3243L is doing the exact same thing, turns of after about 3 seconds. Could you please advise me which board cause the problem for this model.

dell is just beast lol no problems like this a 1911p lcd thats like 2009 monitor still works. i have it on 24/7 sometimes hahah

Thank you for the video that helped me fix the backlight but I still having the following message "No signal "on my screen.Any idea ?

I have a LED monitor that doesn’t work I don’t want it to work what I wanted to do is to create it a lamp. But it keeps turning off because it’s not connected to computer is there a way to re-wire the switch directly to the power so it doesn’t turn off

great video as soon as i pick up some solder ill try it out

Hey, turns out the LED isn't the problem, it's something else. What could be the problem (turning off after few seconds)?

cheers mate followed thru and worked aswell

High voltage ceramic capacitors can also be the culprit. Besides the electrolytic ones. 😕

Thanks for sharing information on repairing monitor, it was very helpful.

will a tv still work with a cracked ccfl tube? or will this cause the board to shut off

I'm trying to find an LCD screen for an HP 2009m monitor. Do you know who sells these screens. Haven't had much luck in finding parts for it.