Just so you know, you aren't just a hero to your sister. Providing these invaluable tutorials to so many puts you in that category . Where else can we get such informative and educational videos. I am constantly amazed how you are able to diagnose and repair so many different pieces of equipment and in such a short amount of time. I guess that was a requirement when you worked for a company. As a hobbyist I can spend days if I want working on something. No one would pay me to do that. Thanks from all the thumbs up watchers. And to those few thumbs downers, remove your head from the orifice and insert your thumb !
Really appreciate the lamps test on the inverter board Dave as I have done this today and found 12volts Dc on one side of the diode and i get switch on for a time before 4 blinks. I am looking for a replacement inverter board. You are great help ☺
We have a late model 2007 Sony Bravia model KDL-40V2500 bought new. It was turning off and immediately back on sometimes very very short intervals and some long. Annoying! Some days it worked fine. Tried unplugging (30 seconds) and resetting with power button and volume switch. No help. Took out (heavy TV!) to my hot humid SW Florida garage and removed the back unplugged from AC of course. Get your Phillips (small and large size end) and Look for all arrows pointing to screw holes. There’s 2 smaller ones dead center!! Gently Pull off back. Now, lower bottom center left there’s a small white clip that connects power to a board from a shiny metal egg shaped housing where the thick ac power cord connects to. We Disconnected and cleaned male and female with electronic spray (plastic safe dry cleaning fluid in a can Home Depot). Air hosed entire back. Turned it on and let it run for an hour in my hot humid garage (92 degrees) with no issues. The top did get hot so thinking it wasn’t heat issues making it act up. Cleaned dusty back panel with spray soap and garden hose. Let dry completely…… it ran perfectly for another hour. Reinstalled rear panel and brought inside ac’d home. Still running with no glitches so far. I like the set. Yes it’s old but really nice picture. Not many hdmi in’s but it has a Headphone jack! Good luck. No guarantees. Cheers
I think I'm having the same issues with my KDL-40V2500. Also bought mine new back in 2007, back when Circuit City was around. Never had one problem with her until now. Just all of a sudden, the screen blinks on and off several times, then the power button goes off then back on then the screen goes back to blinking off and on. Not sure if it's a bad AC power cord or an issue with the main board. I was going to try the route of purchasing a new ac power cord for about $9 but from your post, it sounds like all it needs is a good cleaning. Love this TV, beautiful picture, hate to get rid of it but it's bit of a monster to handle. I appreciate your post.
I have a Bravia myself. My dad built an extension to my entertainment center because the set was too wide (the entertainment center was designed for those big CRT sets, but still not wide enough for a flatscreen), so now it sticks out a little in front; perfect because the stand swivels a little so I can access the ports on the back and hook up gaming devices.
I just picked up a Philips LED 49PFL4909/F7 (2014) that had the same issue after somebody spilled lemonade on it. So I figured your trick was wort trying so I disconnected all of the ribbon cables from the T-con board and rubbed the connectors with clean fingers, plugged everything back up and VOILA it turned on and stayed on ! Unfortunately the screen got broken in a move before I got it.
Hello, good morning, I would like to ask you a question, I have the same TV model, and it has a fault, it turns on and off repeatedly, the power card relay sounds and the screen is turned on. you know it could be Thank you
I used to have a 46v5100. Gave it to my mother when her plasma blew up needing parts to be ordered. Had a great picture. My sister has it now, same one that owns this set. I have a 37xbr6 that I changed the gama correction chip on the tcon board.
Fivos Sakellis I wouldn't put anything on them or touch the end of the connector. we are talking low voltage and very high speed signaling so anything on connector could cause leakage which would spell disaster.
One other thing with the lcd panel to t-con board is to clean the contacts on the flexible loom and also at on the t-con board, dust build up and the contacts becoming tarnished are a problem and not only with Sony televisions. A ink rubber makes a good devise for cleaning the gold contacts on the flexible looms and good old contact cleaner to finish off.
Had a number to Sony televisions that had both a digital and analog tuner built in. The problem was that the digital Tuner had stopped working . the fault is in of the little smd fuses on the digital tuner board that had gone O/C . It's rated at about 700 Ma . replace with a 1000 Ma . Re tune and job done. A bit daunting at first , but i had done this repair in the home.
Great work I have a Sony Bravia KDL 32V similar issue with 4 blink code. I think it is lamps over current sio thanks for the inverter board check which i could try
Kinda reminds me of my Sony TV i found in the trash the model was KDL-40S2010 . 2 blink error it turned out to be a down power converter IC on mainboard.
I haven't either, and judging by the number that said change the TCON, I imagine that most that have had this problem just changed the TCON and it fixed it because they disconnected it to swap. I have looked to see if anyone else had reported this fault and have found none. Lots of TCON replacements. Lots of sites wanting to charge 30.00 to say replace the tcon.
my TV (same make, same model) is doing the same thing. Since I don't have a brother that can fix it what would it cost to repair it? Note that my wife heard a pop before the problem began.
Hi Dave the inverter board i have is for A Sony Bravia KDL 32V 4000 and is very different design can you advise. It uses jumpers and i am trying to use your tip. Any advice ? Thanks
I wonder is it the TCON Board acting up again if so then would a large sink attached to the TCON Board and Dremil out out a portion of the case of the set to accommodate the heatsink, If you have a old Film-Net decoder I think it can be made to work as a video scrambler.
salut aide moi j'ai cherché partout sur internet comment accéder à la dalle du tv sony kdl 46ex720. car j'ai voulu changer le backlight qui a un problème. malheureusement je ne trouve pas de tuto qui explique comment ouvrir la tv et accéder aux led. si tu a un lien pour m'aider. merci
Thats odd. I thought you could disconnect one of the top connectors and tv still works showing only half of screen. Maybe tabs were shorting across to adjacent pin.
Argh. No luck on my KDL46VE5 (basically the same model and year). Although it seemed to work, the BL came on then off then back on again and stayed. But the TV was locked up. The power button and remote didn't do anything. I had to hard power it off. Seems it does this when you pull the power cord while it's powering on. Messed with the other T-Con wires, now the BL powers on for 2 seconds then off, and after about 29 seconds it powers off. Before I moved around those ribbon cables it did power off after about 12-13 seconds. I wish I could easily get to the other side of those ribbon cables, they seem to be plugged into connectors at the top edge of the TV. A ribbon cable plugged into a hard to get at connector is a bad design idea.
Hi Dave! Greetings from south of the world! I am been having bad luck lately, my sony XBR55X800E got broken during a thunderstorm. Every other device in the house is fine. I checked the psu and it works. Then checked the main board and I see there are two blown IC's right next to the ethernet port. So, probably the discharge came from there. Ever had any experience with that situation? Could be solvable or just get a new main card or new tv?
Hi i have a Sony TV but when I turn it on, after 12 minutes or less it starts to make some noises and after shut down. Do you have any idea, what is happening? Thanks
Meta question, I have a KDL-40VE5, it has a vertical blue line on the screen, but that's not my question. I removed the tape at 5:20 and I threw it out, is there anything I should worry about? Is there anything wrong that can happen?
I have a similar symptom with my Sony KDL-55V5100 set, but reseting the connections shown in the video did not resolve the issue. With mine the backlight comes on at 6 seconds but shuts down at 8 seconds. Then the set itself shuts down at 17 seconds. No flashing lights on the front - just the solid green light for 17 seconds. Do these clues lead to another diagnosis? Happened during our vacation and grandkids had access to the remote. Is there anything they could do from the remote that would break the set and if so is that another clue?
richie mine just started doing the same thing. Wife fell asleep with it on . It’s almost 12 years old. I did the same thing he did here with no luck. Checked a bunch of voltage points and no problems. I’m thinking it’s the main board but want to be sure. Did you ever get yours fixed? New TV isn’t that much but I do like to fix things
@@FFLVFD I decided to let the city pick it up since a newer model from Costco would only be about 350. But it gave me a chance to upgrade to an LG LED model (at a much higher price).
What if it starts up, displays the logo (sony) starts to play media plugged into hdmi (roku) for 5-10 seconds and then shuts down and turns back on and keeps doing that over and over? I can change volume but can't access menu or change input and it doesn't stay on long enough to do a factory reset. Sony bravia KDL-40NX711
Hey I have a problem with this tv turning the screen and sound of and turning back on after a second or two, what would you recommend me trying to fix it
Hi, can any one help me. My Sony Model KDL40W 5100 was working fine last night today when I turned the power on Sony logo lights and power standby green light comes on but no screen and back lights off. When I unplug the set and plug it back on Sony and power standby green light come on screen and bravia logo come on the after a few seconds screen goes black??? Any suggestions of what could be wrong? Previous to this I was having sound problems which seemed to fix itself.
Somebody was skipping ahead and not paying attention. The video was very clear. It was shutting down untill I disconnected the panel from the TCON, and once I reconnected it the problem was solved. Coss of communication between TCON and and panel driver ICs that are on the FPC tabs. Around the 4 minute mark is when I got into the FPC connectors. The test of the lamp current sense later on was for reference only.
Have you worked on any 32" Emerson LCD/LED TVs that won't turn on? I've got 2 of them, the first one won't turn on at all and only produces standby voltages about half of what they should be. The second one will turn on the PS for a few seconds and has the correct voltages but then it shuts off again. I can't find a schematic for the PS but I've checked almost everything on the boards and can't find anything wrong.
Good to know after the fact. Just bought used Sony, for my Son visiting, $75.00 for a KDL - 32ML130. Oh boy Sony, nice. worked for a week, now it will turn on displays SONY, then shuts down. Red LED is flashing 4 times.
What we have here is a failure to communicate , :) Interesting how boards and components need to "communicate" to operate properly. I wonder how deep this goes? Is it possible there are communications happening that we do not see or understand ? Perhaps in terms of Permeability or Temperature? I enjoy your videos, you are skilled at what you do. My father was big into fixing CRT's back in the day, we as a family of 5 always had a basement full of backless CRT's. :)
I've recently fixed 2 Vizio TVs with bad solder joints on the board-to-board connector. One board had a pin connector, and the other had a socket connector. The socket connector had all bad solder joints, about 16, that resulted in the connector to wiggle. Bad factory solder job. Speaking of Vizio, I just had to eWaste a 70" 2013 model yesterday due to a bad panel. They used a Sharp LCD, and you get what you pay for on that one.
Hello I am having the same issue with the same model tv except I get the BRAVIA logo and then powers off and then standby red light blinks 6 times then stops then 6 times then stops. Would this be the same issue as your sisters tv. Please help
I have the Sony kdl48r510c . During power-on, the screen lights up with 4-6" wide vertical bars behind the Sony logo. The Sony logo turns slowly from white to green and then slowly fades. At this point, I have a totally black screen except for the back-light. None of the on-tv buttons cause any display changes on the tv. Using the source button, I cycle through the inputs which has my computer plugged in. I feel like the main board may be damaged, since the computer doesn't sense that the tv is plugged in when it is on. Is there any diagnostics available via the network connection? The link comes up when I plug it into my computer, but I don't detect any traffic coming from it... --update-- I replaced the main board and still have the exact same symptoms...$50 wasted... It seems the tcon function is integrated into the main board on this unit and just has a ribbon cable from the main board to the board at the bottom of the screen that connects to the panel. This board is at least two feet long and has ribbon cables that wrap under the screen that are directly attached...no socket. Ideas? Thanks for your videos!
Hey bud you have greatly helped me before and I have this same TV, my problem is that it runs for a bit then suddenly goes into standby. I replaced main board but problem still exist. Any suggestions? Should I suspect Tconn? Thanks and great video.
Mark Anderson this set went up on the bench around 6 and I didn't get it going until about 1130. now I wasn't working on it constantly but I did spend much time checking fuses and voltages. to test the transformers on the right inverter you have to remove the main board to get the screws which I did without disconnecting anything. this takes time and the fuses on this board are microscopic. using big magnifier to see them. as they were all good no need to show. if I had found a bad one I would have turned on the camera to show it like I did to demo the test of the inverter transformers.
Okay. It did not work for me. Geek Squad wont touch it so I had a "tv repair man" try to repair it. He said he swapped out the boards ext., & no luck. Said it might be defective LCD panel which he does not have. So... I am stuck. Help please.
The replacement of the ccfls with LEDs was a great improvement. New sets give off almost no heat, my ccfl Sony in the bedroom forced me to use the air conditioner.
Repairings for the masses,televisions are repaired without even removing a board from its place.But in the real world all the enlighted enthusiasts will think that the technician that took hours for the tv repairing and components parts replacing is trying to cheat them just because having in mind that he lock a screw or remount a flex cable in its socket.
In many cases it is a bad ground or oxidation on a flex cable that causes the fault. Of course when I was in the business this was never what the customer was told. There was always a part that needed replacing so the 100+ repair bill could be justified. I just followed the rules because it wasn't my shop.
About the customers opinions for the repairings.Few days ago an "well informed" customer brought a relative large UPS with onboard batteries told that the capacitors probably had problem despite the fact that no one was bulged as he said to me because he knew but it is better to check it myself.In fact was the batteries failed because measured in open circuit 40v then dropped to 5v in circuit and never get charged and the genius measured them only in open circuit and he found them very good.I tested with a bench supply of 31v max and then blower and inverter started showing low bat led.When he came to pick it said the enthusiast if we can connect another one supply in series to raise the voltage to test and the led readings also.That was my greatest mistake because the second one supply was swithing type and had the minus of the secondaries connected with the mains ground and when connected to the ups input of batteries the isolation had gone and burned down the processor.I made a large mistake but in the other hand was one the larger joy of 30 years of my professional electronics carrer and i wanted to kick him laughing.His batteries and my pocket in the ending left without being charged.
i know a brilliant trick if all else fails , just get a piece of alu foil the same size as your circuit board and just lay it all over the back of the the board ATB Buddy
Great that you showed the test of the lamps! :) Your videos are such a huge knowledge database. So great, thanks!
Pretty informative videos again ! Just imagining how many tv have been sent to the landfill just for a dusty contacts problem like this !
Just so you know, you aren't just a hero to your sister. Providing these invaluable tutorials to so many puts you in that category . Where else can we get such informative and educational videos. I am constantly amazed how you are able to diagnose and repair so many different pieces of equipment and in such a short amount of time. I guess that was a requirement when you worked for a company. As a hobbyist I can spend days if I want working on something. No one would pay me to do that. Thanks from all the thumbs up watchers. And to those few thumbs downers, remove your head from the orifice and insert your thumb !
I had work on two Sonny in the beginning of my TV repair adventure. It was a failure. I have a lot of success on LG and Samsung
Really appreciate the lamps test on the inverter board Dave as I have done this today and found 12volts Dc on one side of the diode and i get switch on for a time before 4 blinks. I am looking for a replacement inverter board. You are great help ☺
We have a late model 2007 Sony Bravia model KDL-40V2500 bought new. It was turning off and immediately back on sometimes very very short intervals and some long. Annoying! Some days it worked fine. Tried unplugging (30 seconds) and resetting with power button and volume switch. No help. Took out (heavy TV!) to my hot humid SW Florida garage and removed the back unplugged from AC of course. Get your Phillips (small and large size end) and Look for all arrows pointing to screw holes. There’s 2 smaller ones dead center!! Gently Pull off back. Now, lower bottom center left there’s a small white clip that connects power to a board from a shiny metal egg shaped housing where the thick ac power cord connects to. We Disconnected and cleaned male and female with electronic spray (plastic safe dry cleaning fluid in a can Home Depot). Air hosed entire back. Turned it on and let it run for an hour in my hot humid garage (92 degrees) with no issues. The top did get hot so thinking it wasn’t heat issues making it act up. Cleaned dusty back panel with spray soap and garden hose. Let dry completely…… it ran perfectly for another hour. Reinstalled rear panel and brought inside ac’d home. Still running with no glitches so far. I like the set. Yes it’s old but really nice picture. Not many hdmi in’s but it has a Headphone jack! Good luck. No guarantees. Cheers
I think I'm having the same issues with my KDL-40V2500. Also bought mine new back in 2007, back when Circuit City was around. Never had one problem with her until now. Just all of a sudden, the screen blinks on and off several times, then the power button goes off then back on then the screen goes back to blinking off and on. Not sure if it's a bad AC power cord or an issue with the main board. I was going to try the route of purchasing a new ac power cord for about $9 but from your post, it sounds like all it needs is a good cleaning. Love this TV, beautiful picture, hate to get rid of it but it's bit of a monster to handle. I appreciate your post.
Well done, she is happy and it only needed a fondle :-D.
Dam connectors :-(
I have a Bravia myself. My dad built an extension to my entertainment center because the set was too wide (the entertainment center was designed for those big CRT sets, but still not wide enough for a flatscreen), so now it sticks out a little in front; perfect because the stand swivels a little so I can access the ports on the back and hook up gaming devices.
I just picked up a Philips LED 49PFL4909/F7 (2014) that had the same issue after somebody spilled lemonade on it.
So I figured your trick was wort trying so I disconnected all of the ribbon cables from the T-con board and rubbed the connectors with clean fingers, plugged everything back up and VOILA it turned on and stayed on !
Unfortunately the screen got broken in a move before I got it.
Hello, good morning, I would like to ask you a question, I have the same TV model, and it has a fault, it turns on and off repeatedly, the power card relay sounds and the screen is turned on.
you know it could be
Thank you
Hey hey hey I recognize that tv I use to have the exact same tv but it was a 40inch set. Not a bad tv remember picture wasn't bad either good set.
I used to have a 46v5100. Gave it to my mother when her plasma blew up needing parts to be ordered. Had a great picture. My sister has it now, same one that owns this set. I have a 37xbr6 that I changed the gama correction chip on the tcon board.
Nice one. Can you use contact cleaner on these ribbon cables?
Fivos Sakellis
I wouldn't put anything on them or touch the end of the connector. we are talking low voltage and very high speed signaling so anything on connector could cause leakage which would spell disaster.
One other thing with the lcd panel to t-con board is to clean the contacts on the flexible loom and also at on the t-con board, dust build up and the contacts becoming tarnished are a problem and not only with Sony televisions. A ink rubber makes a good devise for cleaning the gold contacts on the flexible looms and good old contact cleaner to finish off.
Correct.
Had a number to Sony televisions that had both a digital and analog tuner built in. The problem was that the digital Tuner had stopped working . the fault is in of the little smd fuses on the digital tuner board that had gone O/C . It's rated at about 700 Ma . replace with a 1000 Ma . Re tune and job done. A bit daunting at first , but i had done this repair in the home.
Great work I have a Sony Bravia KDL 32V similar issue with 4 blink code. I think it is lamps over current sio thanks for the inverter board check which i could try
Hello, I have a question on sony Bravia TV. I want to send you a photo, where you can be contacted
Nice video like always Dave! And more knowledge to the memory bank in the brain Thank you :)
Kinda reminds me of my Sony TV i found in the trash the model was KDL-40S2010 . 2 blink error it turned out to be a down power converter IC on mainboard.
Good video, I'm always learning on your channel. Haven't seen that fault before
I haven't either, and judging by the number that said change the TCON, I imagine that most that have had this problem just changed the TCON and it fixed it because they disconnected it to swap. I have looked to see if anyone else had reported this fault and have found none. Lots of TCON replacements. Lots of sites wanting to charge 30.00 to say replace the tcon.
my TV (same make, same model) is doing the same thing. Since I don't have a brother that can fix it what would it cost to repair it? Note that my wife heard a pop before the problem began.
Excellent Videos Tutorials. Keep on doing them.
Sure ? Only you can do fix is to reset the connector witch is communicate with T-CON BOARD?.
Is there no over current protection issue??
Hi Dave the inverter board i have is for A Sony Bravia KDL 32V 4000 and is very different design can you advise. It uses jumpers and i am trying to use your tip. Any advice ? Thanks
good you are the best
I wonder is it the TCON Board acting up again if so then would a large sink attached to the TCON Board and Dremil out out a portion of the case of the set to accommodate the heatsink, If you have a old Film-Net decoder I think it can be made to work as a video scrambler.
Banger intro
Thank you.
salut aide moi j'ai cherché partout sur internet comment accéder à la dalle du tv sony kdl 46ex720. car j'ai voulu changer le backlight qui a un problème. malheureusement je ne trouve pas de tuto qui explique comment ouvrir la tv et accéder aux led. si tu a un lien pour m'aider. merci
if you played a dvd of your own videos that wouldnt in theory break you tube rules surely
Just put the TV in front of a dirty mirror so the video will be reversed and blurred. LOL
so clearly you are good man
Another great video =D
Thats odd. I thought you could disconnect one of the top connectors and tv still works showing only half of screen. Maybe tabs were shorting across to adjacent pin.
Argh. No luck on my KDL46VE5 (basically the same model and year). Although it seemed to work, the BL came on then off then back on again and stayed. But the TV was locked up. The power button and remote didn't do anything. I had to hard power it off. Seems it does this when you pull the power cord while it's powering on. Messed with the other T-Con wires, now the BL powers on for 2 seconds then off, and after about 29 seconds it powers off. Before I moved around those ribbon cables it did power off after about 12-13 seconds. I wish I could easily get to the other side of those ribbon cables, they seem to be plugged into connectors at the top edge of the TV. A ribbon cable plugged into a hard to get at connector is a bad design idea.
Great video!
My TV does the exact same thing except the back lights do not come on. Would you know what would be the issue in this case?
Dust,no...vintage electrons...
Hi Dave! Greetings from south of the world! I am been having bad luck lately, my sony XBR55X800E got broken during a thunderstorm. Every other device in the house is fine. I checked the psu and it works. Then checked the main board and I see there are two blown IC's right next to the ethernet port. So, probably the discharge came from there. Ever had any experience with that situation? Could be solvable or just get a new main card or new tv?
New tv time.
Well done my friend!!
Hi i have a Sony TV but when I turn it on, after 12 minutes or less it starts to make some noises and after shut down. Do you have any idea, what is happening? Thanks
Meta question, I have a KDL-40VE5, it has a vertical blue line on the screen, but that's not my question. I removed the tape at 5:20 and I threw it out, is there anything I should worry about? Is there anything wrong that can happen?
No problem.
I have a similar symptom with my Sony KDL-55V5100 set, but reseting the connections shown in the video did not resolve the issue. With mine the backlight comes on at 6 seconds but shuts down at 8 seconds. Then the set itself shuts down at 17 seconds. No flashing lights on the front - just the solid green light for 17 seconds. Do these clues lead to another diagnosis?
Happened during our vacation and grandkids had access to the remote. Is there anything they could do from the remote that would break the set and if so is that another clue?
richie mine just started doing the same thing. Wife fell asleep with it on . It’s almost 12 years old. I did the same thing he did here with no luck. Checked a bunch of voltage points and no problems. I’m thinking it’s the main board but want to be sure. Did you ever get yours fixed? New TV isn’t that much but I do like to fix things
@@FFLVFD I decided to let the city pick it up since a newer model from Costco would only be about 350. But it gave me a chance to upgrade to an LG LED model (at a much higher price).
richie thanks man. That’s probably what I’ll end up doing. Tech changes so fast that it’s probably better just to pick up a new TV. Thanks again
Hisense LCD
LCD40 v86P switch on display hisense then off quick standby work perfect please help !!
t-con or mainboard
What if it starts up, displays the logo (sony) starts to play media plugged into hdmi (roku) for 5-10 seconds and then shuts down and turns back on and keeps doing that over and over? I can change volume but can't access menu or change input and it doesn't stay on long enough to do a factory reset. Sony bravia KDL-40NX711
If it is a fluorescent backlight type it could be a bad tube going bad triggering an over current shut down. Could be a problem on the main board too.
@@12voltvids thanks for getting back to me it is an edge lit led lcd 3d 1080p hdtv. I'm guessing it will probably end up being one of the boards
grate video tks
I had a 32in sony and it cut off anout 10sec it was the tcon but the tcon was to expansive for a 32in tv
On this beast hahahahaha. You should say on this sex beast hahahahaha 🤣🤣🤣
Hey I have a problem with this tv turning the screen and sound of and turning back on after a second or two, what would you recommend me trying to fix it
SONY. Just Bologna...they stopped making good tv's back in the 80's ... too bad..remember the trinatron...cheers 🍻🍻🇺🇸🇺🇸
yeah my Bravia died after 4 years.
Hi, can any one help me. My Sony Model KDL40W 5100 was working fine last night today when I turned the power on Sony logo lights and power standby green light comes on but no screen and back lights off. When I unplug the set and plug it back on Sony and power standby green light come on screen and bravia logo come on the after a few seconds screen goes black??? Any suggestions of what could be wrong? Previous to this I was having sound problems which seemed to fix itself.
and sony mainboards are expensive
New sonys suck
There was a bad run.
Your video is inconclusive, too much-information not enough step by step instructions.
Somebody was skipping ahead and not paying attention. The video was very clear. It was shutting down untill I disconnected the panel from the TCON, and once I reconnected it the problem was solved. Coss of communication between TCON and and panel driver ICs that are on the FPC tabs. Around the 4 minute mark is when I got into the FPC connectors. The test of the lamp current sense later on was for reference only.
thanks superteacher
Thank you.
Have you worked on any 32" Emerson LCD/LED TVs that won't turn on? I've got 2 of them, the first one won't turn on at all and only produces standby voltages about half of what they should be. The second one will turn on the PS for a few seconds and has the correct voltages but then it shuts off again. I can't find a schematic for the PS but I've checked almost everything on the boards and can't find anything wrong.
Sounds like it was some sort of chip creep type scenario - the cables to the TCON board became loose from constantly being heated and then cooled.
Yes possibly, or there was just some oxidation that crept into one of the connectors and causes resistance to increase above the threshold.
every sony i repair it's alway the tcon or mainboard i never had one with power supply or panel i forgot i'll never buy a sony
leon johnson jr
yes I recently a tcon on a 37xbr6.
I have never had this fault before though.
yes sir
Sony DVD players and bluray players are very reliable why can't they make their TVs reliable
This is exactly why i'll stick to panasonic tv's because they never seem to go wrong
Good to know after the fact. Just bought used Sony, for my Son visiting, $75.00 for a KDL - 32ML130. Oh boy Sony, nice. worked for a week, now it will turn on displays SONY, then shuts down. Red LED is flashing 4 times.
I charge my family double. They never pay anyway.
I love your style. LOL
What we have here is a failure to communicate , :) Interesting how boards and components need to "communicate" to operate properly. I wonder how deep this goes? Is it possible there are communications happening that we do not see or understand ? Perhaps in terms of Permeability or Temperature? I enjoy your videos, you are skilled at what you do. My father was big into fixing CRT's back in the day, we as a family of 5 always had a basement full of backless CRT's. :)
I've recently fixed 2 Vizio TVs with bad solder joints on the board-to-board connector. One board had a pin connector, and the other had a socket connector. The socket connector had all bad solder joints, about 16, that resulted in the connector to wiggle. Bad factory solder job. Speaking of Vizio, I just had to eWaste a 70" 2013 model yesterday due to a bad panel. They used a Sharp LCD, and you get what you pay for on that one.
Hello I am having the same issue with the same model tv except I get the BRAVIA logo and then powers off and then standby red light blinks 6 times then stops then 6 times then stops. Would this be the same issue as your sisters tv. Please help
NICE - thank you
And two times bling light
I have the Sony kdl48r510c . During power-on, the screen lights up with 4-6" wide vertical bars behind the Sony logo. The Sony logo turns slowly from white to green and then slowly fades. At this point, I have a totally black screen except for the back-light. None of the on-tv buttons cause any display changes on the tv. Using the source button, I cycle through the inputs which has my computer plugged in. I feel like the main board may be damaged, since the computer doesn't sense that the tv is plugged in when it is on.
Is there any diagnostics available via the network connection? The link comes up when I plug it into my computer, but I don't detect any traffic coming from it...
--update-- I replaced the main board and still have the exact same symptoms...$50 wasted...
It seems the tcon function is integrated into the main board on this unit and just has a ribbon cable from the main board to the board at the bottom of the screen that connects to the panel. This board is at least two feet long and has ribbon cables that wrap under the screen that are directly attached...no socket.
Ideas?
Thanks for your videos!
I have a Sony a8g Oled that after it sits and I turn it on it turns back off. I have to do it several times then it boots up. Once on its good.
Better leave it on.
Hey bud you have greatly helped me before and I have this same TV, my problem is that it runs for a bit then suddenly goes into standby. I replaced main board but problem still exist. Any suggestions? Should I suspect Tconn? Thanks and great video.
What 4 hours? Of teaching us?
Mark Anderson
this set went up on the bench around 6 and I didn't get it going until about 1130. now I wasn't working on it constantly but I did spend much time checking fuses and voltages. to test the transformers on the right inverter you have to remove the main board to get the screws which I did without disconnecting anything. this takes time and the fuses on this board are microscopic. using big magnifier to see them. as they were all good no need to show. if I had found a bad one I would have turned on the camera to show it like I did to demo the test of the inverter transformers.
hey loved the video and great job fixing your sisters tv, you have to take care of your sister, thax
Sony Bravia 46 inch display no pictures
Okay. It did not work for me. Geek Squad wont touch it so I had a "tv repair man" try to repair it. He said he swapped out the boards ext., & no luck. Said it might be defective LCD panel which he does not have. So... I am stuck. Help please.
It could very well be the panel. Time for a new tv.
The replacement of the ccfls with LEDs was a great improvement. New sets give off almost no heat, my ccfl Sony in the bedroom forced me to use the air conditioner.
Ccfl did get hot but they looked great. And they last much longer than led.
I do that all the time for my family . They are lucky to have me.
Repairings for the masses,televisions are repaired without even removing a board from its place.But in the real world all the enlighted enthusiasts will think that the technician that took hours for the tv repairing and components parts replacing is trying to cheat them just because having in mind that he lock a screw or remount a flex cable in its socket.
In many cases it is a bad ground or oxidation on a flex cable that causes the fault. Of course when I was in the business this was never what the customer was told. There was always a part that needed replacing so the 100+ repair bill could be justified. I just followed the rules because it wasn't my shop.
About the customers opinions for the repairings.Few days ago an "well informed" customer brought a relative large UPS with onboard batteries told that the capacitors probably had problem despite the fact that no one was bulged as he said to me because he knew but it is better to check it myself.In fact was the batteries failed because measured in open circuit 40v then dropped to 5v in circuit and never get charged and the genius measured them only in open circuit and he found them very good.I tested with a bench supply of 31v max and then blower and inverter started showing low bat led.When he came to pick it said the enthusiast if we can connect another one supply in series to raise the voltage to test and the led readings also.That was my greatest mistake because the second one supply was swithing type and had the minus of the secondaries connected with the mains ground and when connected to the ups input of batteries the isolation had gone and burned down the processor.I made a large mistake but in the other hand was one the larger joy of 30 years of my professional electronics carrer and i wanted to kick him laughing.His batteries and my pocket in the ending left without being charged.
I tried re-seeding t-con connections several times but no help. Any more ideas??
@@robertchavez4612 Send tv to a local professional technician.
i know a brilliant trick if all else fails , just get a piece of alu foil the same size as your circuit board and just lay it all over the back of the the board
ATB Buddy
Expert won't upload video of they're repair secret.how they do the repair.