I had the same problem on a similar LG Monitor but I didn't have a replacement cap around. Since it was a 12V transformer I simply attached a standard 4 Pin Molex and hooked it directly to the computers PSU. Fixed.
I just had the same problem with my 2nd LG monitor and was about to fix the PSU after watching your video. However, I would have to find the capacitor as I don't have that size and value in my junk box... but I found a replacement PSU on Amazon for ~$20. So, I went the lazy way and bought a replacement PSU. It arrived the next day and my monitor is up and running. Yes, the replacement is another low-price device from you know where, but it "says" that it's UL, CE, etc. certified. In any event, thanks for the video as it probably saved me from trashing the monitor.
Thank you for sharing this, I had exact the same problem at exact the same monitor. I was ready to open up the monitor until I stumbled on your channel!
Recently fixed my old Asus LCD monitor (from 2007 I think) which had a similar problem. 2 bulging caps in the power supply, replaced them and it worked fine. Guess manufacturers haven't improved their practices the last 10 years.
Save $30 not buying a new power supply 😉 👍 I am also a repair tech with the exact same 27" LG monitor and issue! The power brick was definitely #1 suspect. And that's exactly what I did, but I happened to have a 680uf 25v cap laying around. I also took the monitor apart. Not too hard once you figure it out. After you take the stand off. Entire back is snapped on and only one screw where all the connections are. You have to start at the bottom right corner where there's a visible slit and then work your way around the entire back one snap at a time. Hopefully that extra bit of info will be helpful to someone if they are trying to access the monitor board etc. There's a single small postcard size board with all electrolytics on it surface mount. All looked good still. Only the power supply was bad like you showed. It was fun watching this video after the repair and seeing the exact same thing LOL thanks 👍 I also have a couple Panasonic plasmas and have fixed many others! I have a bunch of good new (batch tested) DG301's if you ever need any... 😉
My 19inch LG is doing the same thing, built in PS though, I bought this thing back in the early 2000's and it is just now dead, time to crack it open and recap I am sure, it is my surv monitor. Great vid, inspires me to work on my own :)
You have Dreamweaver; wow that brings back memories. I used to do web authoring for the Engineering school back in my postdoc days (1998-2006); time flies.
@@12voltvids I was wondering what web authoring you might be doing. Surprised you're still bothering with Adobe after their blatant, ongoing, cash grab software rental fiasco.
@@davidgriffin79 I don't do Web authoring. Dreamweaver is part of cs6 which I bought several years ago for a redecules amount of money. Something like 1500.00. I use premiere and I am pissed at the new "rental" policy for new versions. My version will not run on win10 so I am stuck with win 7 forever. If my computer breaks I will have to install an old version of with 7 on new machine. I won't be upgrading my editing machine any time soon. I don't do anything on this machine but edit and upload. If a time comes that I can't upload with existing browsers I will export to external drive and upload from a newer machine but as far as my edit suite goes it will remain win7 forever. Or I could dump premiere and move to something else but there is the learning curve I would rather not go through. I learned on premiere 4.0 and that is all I have used. I have tried other "consumer" versions with a gillion effects and such and I actually used pinnacle 14 to make my opening logo but I perfer the speed and simplicity of premiere 6 for what I do. I know how to do everything I need to without having to look something up.
@@12voltvids Try Davinci Resolve; yes there's always a learning curve but the editing's pretty straightforward. I chose to use Resolve because of its grading capabilities, which I'm still very much a novice at (Resolve is THE standard for colour grading). Editing's easy on Resolve and if you understand editing on Premier, Resolve will not be that much of a steep or long gradient. The big bonus for Resolve is (1) it's free (2) you get ~80-90% of what you get on the paid-for version of Resolve and (3) you can stick the middle finger up at Adobe for being so effing greedy.
Well that came back to perfect operation, well worth it :-D. I laughed when you used a cable tie on the psu, i've been doing the same thing on my own supplys for a long time. i also drill 1/8 inch holes in the case to get some convection air flow, stopping the ovan effect. I don't like wasting a psu for the sake of a capacitor, i think you are similar.
The exact same capacitor was the issue in my LG psu as well. aged psu, slightly bulged cap. volt drop off from 19V to 10-13 during load. Now with the replacement cap only to ~18.5V. Thank you for this video, I would have gutted the entire monitor otherwise to find the issue.
No Kline snips today? How else are you going to keep the hate mail rolling in? Just kidding. A good, simple repair caused by "Craps"-- I mean caps. I'm still in awe of your knowledge over electronics of all sorts.
I remember when back in early of 2016, I have the 2006 Trutech (Cyberhome) TT-320 DVD player that I got it from the pawn shop where they don't want them anymore because, someone wrote it on the top of the DVD player with the black marker saying "no good, returns 7/26/12." later on, somewhere around in November I guest, I opened up the case, and found out, the S.Y. 1000µF 10V cap is bulging, and right after I change to Samxon 1000µF 10V cap, and all behold, it works! DVD player for free (but no remote to the DVD player) I can't complain about it. =)
Nice fix, replace a capacitor, I've done this with a DVD player that was doing the same thing. Replaced a bulging cap and it's good as new. I have an older LG Flatron monitor that someone gave me and it's still working to this day. Got it to replace my old CRT monitor that was suffering from cold solder joints in the horizontal deflection. I haven't fixed that because I have the LCD monitor.
I have the same feeling for old CRT computer monitors, even though I do have a very, very good one. A Viewsonic P815 21" with the coveted Sony Trinitron tube in it. They go on Ebay for about 450 USD these days.
Thanks. I've been having the same problem (screen turning on/off) with my two 23EA63 monitors for the past year or two.. I have just ordered some capacitors and I'll try this fix. I've never soldered before but will give it a shot.
Hey! Thanks very much. I've already fixed two of my monitors with this same wall-wart problem. Maybe add to the title - "...or flips between DVI/HDMI inputs". Again - thanks for the video you saved me a couple $100's!
Thanks for that - My LG was just heading out to hard rubbish when I saw the model number on the back! I gave a quick look on Duck-Duck-Go and found this! A quick trip to Jaycar and AUD $1.45 later - I don't have to buy a new monitor! Thanks! ;) P.S. the 1000 uF 25V cap fitted perfectly!
A lot of people would have tossed the monitor !! I always thought they should fit electrolytic caps with plugs for plug and play change simplicity - similar to tube sockets !! I've had caps fail before my tubes in guitar amps - ;) ;)
It’s a slightly different size. I got a similar LG monitor without the AC adaptor and none of the heads on my universal laptop charger would fit. I ended up desoldering the power input to the monitor and replacing it with a standard sized socket from some old electronics.
Thanks for the great video, once again! I have a question. I recently bought an ESR meter, but it did not come with a reference table. Well, after searching on the internet, it turns out there are quite a variety of tables that differ by quite a bit. Are they for different types of capacitors? What would you suggest as a good reference table for measuring ESR? Thanks so much, and take care!
This happens to mine as well. But sometimes the OSD also pops up, options get selected, values get changed, just random phantom stuff, started a few years ago, happens maybe at least once a week. Then it goes back to working normal. Do you think that these "phantom" issues could also be related to the power supply?
Can you analyze an adapter and tell if it's bad by the output? Or do you have to take it apart to analyze? Good idea not to leave computer on when not in use. Wear and tear on the cooling fans and hard drive.
Sure you can. Put it under a load and watch the output voltage and ripple. It would be terrible. I didn't need to go down that road because I knew it would be bad. See enough power supply failure modes and you get to know what is wrong before cracking it open.
Not planning to change to win 10 because my editing package won't run and Adobe has gone the monthly rental route with cloud and I don't rent software. Not worried about viruses because I don't surf on this machine. I just edit and upload. I don't do email on it either.
How to talk about a monitor repair to earn some pennies from the customer if he knows that you repaired the power supply that he could buy it brand new just from the beginning.To open it very carefully without visible signs?
oh boy... i had this monitor since 2013. and this is a pretty good quality monitor with 10.000.000:1 contrast rate (dynamic) ha similar image quality like plasma or oled. i use this for 3d modeling and texuring so the color quality is pretty important for me (but the reolution over 1k nope because not any vga able to handle million polygon meshes in 4k) and i got this flickering bug.. tired everything driver update, clean resintsall in safe mode another cable.. nothing helped... aaaanddddd i wasted 700$ to buy a new monitor. what is piece of shit compared to this... 1800--2000$ monitors have a similar quality.... what is pain in ass currently for me. so i just found ur video in an old forum.. i just pull out my supply of my new samsung crap and its 19V2A just like what this oldhorse need. pluged in and WORKING!!!!!! haleluja. i just ordered a notebook 19V3A laptop supply for few $ and when arrive i just send back the crap samsung... and i pretty sure i will spend that 700$ on wiskey and sigars as celebration. so tnx for u video.
I had the same problem on a similar LG Monitor but I didn't have a replacement cap around. Since it was a 12V transformer I simply attached a standard 4 Pin Molex and hooked it directly to the computers PSU. Fixed.
That's cool! But this monitor is actually 19v so that wouldn't work in this case.
I just had the same problem with my 2nd LG monitor and was about to fix the PSU after watching your video. However, I would have to find the capacitor as I don't have that size and value in my junk box... but I found a replacement PSU on Amazon for ~$20. So, I went the lazy way and bought a replacement PSU. It arrived the next day and my monitor is up and running. Yes, the replacement is another low-price device from you know where, but it "says" that it's UL, CE, etc. certified. In any event, thanks for the video as it probably saved me from trashing the monitor.
Thank you for sharing this, I had exact the same problem at exact the same monitor.
I was ready to open up the monitor until I stumbled on your channel!
Recently fixed my old Asus LCD monitor (from 2007 I think) which had a similar problem. 2 bulging caps in the power supply, replaced them and it worked fine. Guess manufacturers haven't improved their practices the last 10 years.
Save $30 not buying a new power supply 😉 👍
I am also a repair tech with the exact same 27" LG monitor and issue! The power brick was definitely #1 suspect. And that's exactly what I did, but I happened to have a 680uf 25v cap laying around. I also took the monitor apart. Not too hard once you figure it out. After you take the stand off. Entire back is snapped on and only one screw where all the connections are. You have to start at the bottom right corner where there's a visible slit and then work your way around the entire back one snap at a time. Hopefully that extra bit of info will be helpful to someone if they are trying to access the monitor board etc. There's a single small postcard size board with all electrolytics on it surface mount. All looked good still. Only the power supply was bad like you showed. It was fun watching this video after the repair and seeing the exact same thing LOL thanks 👍 I also have a couple Panasonic plasmas and have fixed many others! I have a bunch of good new (batch tested) DG301's if you ever need any... 😉
My 19inch LG is doing the same thing, built in PS though, I bought this thing back in the early 2000's and it is just now dead, time to crack it open and recap I am sure, it is my surv monitor. Great vid, inspires me to work on my own :)
Hey, what is PS ?
@@dmkskillsz Power Supply
You have Dreamweaver; wow that brings back memories. I used to do web authoring for the Engineering school back in my postdoc days (1998-2006); time flies.
Never used it. I use premiere and photoshop. That is it.
@@12voltvids I was wondering what web authoring you might be doing. Surprised you're still bothering with Adobe after their blatant, ongoing, cash grab software rental fiasco.
@@davidgriffin79
I don't do Web authoring. Dreamweaver is part of cs6 which I bought several years ago for a redecules amount of money. Something like 1500.00. I use premiere and I am pissed at the new "rental" policy for new versions. My version will not run on win10 so I am stuck with win 7 forever. If my computer breaks I will have to install an old version of with 7 on new machine. I won't be upgrading my editing machine any time soon. I don't do anything on this machine but edit and upload. If a time comes that I can't upload with existing browsers I will export to external drive and upload from a newer machine but as far as my edit suite goes it will remain win7 forever. Or I could dump premiere and move to something else but there is the learning curve I would rather not go through. I learned on premiere 4.0 and that is all I have used. I have tried other "consumer" versions with a gillion effects and such and I actually used pinnacle 14 to make my opening logo but I perfer the speed and simplicity of premiere 6 for what I do. I know how to do everything I need to without having to look something up.
@@12voltvids Try Davinci Resolve; yes there's always a learning curve but the editing's pretty straightforward. I chose to use Resolve because of its grading capabilities, which I'm still very much a novice at (Resolve is THE standard for colour grading). Editing's easy on Resolve and if you understand editing on Premier, Resolve will not be that much of a steep or long gradient. The big bonus for Resolve is (1) it's free (2) you get ~80-90% of what you get on the paid-for version of Resolve and (3) you can stick the middle finger up at Adobe for being so effing greedy.
It's great when a repair can be as simple as replacing one component.
Well that came back to perfect operation, well worth it :-D.
I laughed when you used a cable tie on the psu, i've been doing the same thing on my own supplys for a long time.
i also drill 1/8 inch holes in the case to get some convection air flow, stopping the ovan effect.
I don't like wasting a psu for the sake of a capacitor, i think you are similar.
The exact same capacitor was the issue in my LG psu as well.
aged psu, slightly bulged cap. volt drop off from 19V to 10-13 during load. Now with the replacement cap only to ~18.5V.
Thank you for this video, I would have gutted the entire monitor otherwise to find the issue.
No Kline snips today? How else are you going to keep the hate mail rolling in? Just kidding. A good, simple repair caused by "Craps"-- I mean caps. I'm still in awe of your knowledge over electronics of all sorts.
You did mean to say "Crap Caps" right. The Kline snips were out of arms reach.
I remember when back in early of 2016, I have the 2006 Trutech (Cyberhome) TT-320 DVD player that I got it from the pawn shop where they don't want them anymore because, someone wrote it on the top of the DVD player with the black marker saying "no good, returns 7/26/12." later on, somewhere around in November I guest, I opened up the case, and found out, the S.Y. 1000µF 10V cap is bulging, and right after I change to Samxon 1000µF 10V cap, and all behold, it works! DVD player for free (but no remote to the DVD player) I can't complain about it. =)
Nice fix, replace a capacitor, I've done this with a DVD player that was doing the same thing. Replaced a bulging cap and it's good as new.
I have an older LG Flatron monitor that someone gave me and it's still working to this day. Got it to replace my old CRT monitor that was suffering from cold solder joints in the horizontal deflection. I haven't fixed that because I have the LCD monitor.
I have the same feeling for old CRT computer monitors, even though I do have a very, very good one. A Viewsonic P815 21" with the coveted Sony Trinitron tube in it. They go on Ebay for about 450 USD these days.
Thanks. I've been having the same problem (screen turning on/off) with my two 23EA63 monitors for the past year or two.. I have just ordered some capacitors and I'll try this fix. I've never soldered before but will give it a shot.
Update: my 2 monitors are now working! Thank you for this video
Hey! Thanks very much. I've already fixed two of my monitors with this same wall-wart problem. Maybe add to the title - "...or flips between DVI/HDMI inputs". Again - thanks for the video you saved me a couple $100's!
Fixed a VCR with 1 capasitter. I wish I still had my mom's big screen Magnavox MX TV.
No 820' s around either! As always a helpful video. Thanks .
Good job. Love your Panasonic monitor 👍
I have 5. One is a very old SD in the shop. I have another one like this but the top of line thx model as well as a 46 and 50" in storage.
Was watching this on a LG Flatron W2361V. So this is good to know!
Thanks for that - My LG was just heading out to hard rubbish when I saw the model number on the back!
I gave a quick look on Duck-Duck-Go and found this!
A quick trip to Jaycar and AUD $1.45 later - I don't have to buy a new monitor!
Thanks! ;)
P.S. the 1000 uF 25V cap fitted perfectly!
Thanks for Your great video. I solved the problem. My monitor works again! 👍
Great fix, nice and easy too
Thats what they used to call my ex,
@@12voltvids I bet that Rubycon Electrolytic Capacitor you put in will last a lot longer then the chinese Capacitor that was originally in it
A lot of people would have tossed the monitor !! I always thought they should fit electrolytic caps with plugs for plug and play change simplicity - similar to tube sockets !! I've had caps fail before my tubes in guitar amps - ;) ;)
The DC connector looks like those used on some HP laptops. I also think I've seen this one included in universal laptop replacement PSUs.
It’s a slightly different size. I got a similar LG monitor without the AC adaptor and none of the heads on my universal laptop charger would fit. I ended up desoldering the power input to the monitor and replacing it with a standard sized socket from some old electronics.
Thanks for the great video, once again! I have a question. I recently bought an ESR meter, but it did not come with a reference table. Well, after searching on the internet, it turns out there are quite a variety of tables that differ by quite a bit. Are they for different types of capacitors? What would you suggest as a good reference table for measuring ESR? Thanks so much, and take care!
having the same problem with my lg 27EA63 will have to give this a shot
Fast easy fix this time also it didn't leak everywhere at least.
You should try to find a spare monitor just in case. I have a spare myself.
There are other monitors kicking around here.
This happens to mine as well. But sometimes the OSD also pops up, options get selected, values get changed, just random phantom stuff, started a few years ago, happens maybe at least once a week. Then it goes back to working normal. Do you think that these "phantom" issues could also be related to the power supply?
U guy are a genius! thank you !!!
Nice repair video! But what about a desoldering iron? I think you could use it. :-)
Had a shitty one when I was on the business and rarely used it. Never needed one myself. Solder braid does the job for the low volume work I do.
He could use one but he certainly gets by fine without!
Thanks for saving me money =D !
Hey guys, while gaming my screen goes black ( switching off) temporarily. My screen is lg 24m47h-p. It must be the same problem ?
Can you analyze an adapter and tell if it's bad by the output? Or do you have to take it apart to analyze? Good idea not to leave computer on when not in use. Wear and tear on the cooling fans and hard drive.
Sure you can. Put it under a load and watch the output voltage and ripple. It would be terrible. I didn't need to go down that road because I knew it would be bad. See enough power supply failure modes and you get to know what is wrong before cracking it open.
I have the exact same monitor is there a way you can link me to replace the cap?
It is HP laptop charger
how much longer are you going to stay on windows 7 for?
Not planning to change to win 10 because my editing package won't run and Adobe has gone the monthly rental route with cloud and I don't rent software. Not worried about viruses because I don't surf on this machine. I just edit and upload. I don't do email on it either.
I went straight from XP to 10! I don't have editing software yet. I sure I'll be paying big bucks for it someday.
How to talk about a monitor repair to earn some pennies from the customer if he knows that you repaired the power supply that he could buy it brand new just from the beginning.To open it very carefully without visible signs?
Hello sir, I have that same monitor with the same issue how long do I need to wait for that capacitor to discharge before safe to open it up?
Discharge it with a 100 ohm resistor or do what I do, just short it with a screwdriver.
@@12voltvids When did you do that? I didn't see it in the video.
oh boy...
i had this monitor since 2013. and this is a pretty good quality monitor with 10.000.000:1 contrast rate (dynamic) ha similar image quality like plasma or oled.
i use this for 3d modeling and texuring so the color quality is pretty important for me (but the reolution over 1k nope because not any vga able to handle million polygon meshes in 4k)
and i got this flickering bug.. tired everything driver update, clean resintsall in safe mode another cable.. nothing helped... aaaanddddd i wasted 700$ to buy a new monitor. what is piece of shit compared to this... 1800--2000$ monitors have a similar quality.... what is pain in ass currently for me.
so i just found ur video in an old forum.. i just pull out my supply of my new samsung crap and its 19V2A just like what this oldhorse need. pluged in and WORKING!!!!!!
haleluja. i just ordered a notebook 19V3A laptop supply for few $ and when arrive i just send back the crap samsung... and i pretty sure i will spend that 700$ on wiskey and sigars as celebration.
so tnx for u video.