5 Most common Flat Screen TV Repairs.
We begin a series of the most common TV repairs based on our latest repairs, we also may answer your questions regarding your TV problem, you may email your question along with model number and also what's exactly wrong with your TV, such as: TV won't come on, or TV comes on and shuts off, or no picture but there is sound, etc. You may ask questions regarding any of those kind of TVs: CRT TVs, Rear Projections TVs, DLP TVs, Plasma TVs, LCD/LED TVs, LED TVs, or any newer TVs, we will try answer your questions in timely manner, depends on workload, or you can call us anytime: 918-2640116, ask for Joe.
1.LED strips failure. 03.26.20
LED strip failure is the most common problem today. Even though LED TVs have been around since late 70's, they started coming for repairs in about six to eight years, after Plasma TVs got older and people started replacing heavy plasma TVs for lighter and less power consuming and very often larger LED TVs.
Among other flaws, LED strips failures start to show up in about two ( or little sooner sometimes ) years of usage, and with longer hours of being on, TV start failing even sooner.
First signs of LED strips stating to fail, some shadows may start to appear while TV is on, and the size of the shadow normally depends on how many LED lights are dead. Normally there 6 to 8 LED lights on each strip, and about 6 to 8 strips on the left side and the same amount of the strips on the right side. The more lights are failing- the bigger shadow on the screen when TV is on.
Normally shadows are very common on VIZIO TVs, and shadows are almost never shows up on Samsung TVs, normally whole screen turns black.
However, LED strips failure may not be so obvious, sometimes the whole TV goes to shutdown, and the only thing is on - red light blinks, and sometimes TV comes on just fine, and there is audio and very faint picture may show if to use a flashlight.
It is relatively easy to replace LED strips, however it may take up to 2 to 3 hours, depends on the brand and the size of the TV. Word of caution : removing panel would require utmost caution, removing panel may cause a damage which will result in replacing a whole TV, because panels are not repairable, and the price of the panel is about 80% of the price of the whole TV.
And one more thing, LED strips are not interchangeable, they go by very specific part number, they should be replaced all at once with a set of a brand new ones, no "look the same", or "kinda close''. only exactly the same part number. For example for Samsung TV, model number UN60FH6200FXZA, version HH01, LED strip part number would be BN96-29074A/BN96-29075A.
After LED strips are replaced - It may last the same life span,providing TV is plugged in into power surge protector, and back light and brightness are adjusted to 50%, because running back light and brightness on max will significantly shorten life span of the TV.
And the last, keeping the back light ( on some TVs there is no back light controls ) or brightness in the middle may prolong life of the TV.
So, replacing LED strips is a worthwhile procedure and normally cost a fraction of the new TV and could make it last for another 2 to 4 years ( depends on the model, size and usage ).
If you may have questions , call us @ 918-2640116. Joe
2. Main Board failures. 03.26.20
Main Board failures may not be so obvious like for example LED strip failure, however here some most common problems with Main Board:
1. No power, TV won't respond at all, even stand by light is off,
2. TV comes on, and shuts off.
3. TV comes on, has good audio and good video, but after while ( 15-20 min) TV gas high-pitching noise and picture get distorted,
4. TV comes on, has good audio but no video,
5. TV works fine except won't work with remote,
6 TV works good for 15-20 min, then switches from one input to another ( for example from HDMI1 to HDMI2) by itself,
7.TV has great video, but there is no audio
There are many more symptoms which could be caused by Main Board, but those are the most common, and I will discuss few of them here briefly.
First one, no power. Very often it may look like it is a Power Supply's failure, but simple one touch measurement +5V ( sometimes it is +3.3V) may tell you it all: if there is no +5V, then disconnect connector from the Main Board and check it again and if there is +5V, then obviously defective Main Board brought it down, and of course once Main Board is replaced TV comes on.
If TV won't operate with Remote Control it may sound like it is IF board is defective, and sometimes it is, but Main Board does cause this problem too.
Very often intermittent problems are caused by cold solder, which happens with older TVs, And one of the very common problems was capacitor failures. It was very common about ten years ago, nowdays it's almost never happens. And, once I mentioned capacitors failures - I'll take a moment to say a few words about defective caps. First: Suspected capacitors could be measured with Capacitor meters, there are many kinds of them on the market today and they are easy to use, however, if there is no meters around, then bad capacitors definitely look different then good caps: bad caps SOMETIMES have bulging tops , that's why it is good to have a meter to check it, but a cap with bulged to is ALWAYS bad. Another reason for intermittent main board failure is internal breaks in SMD components. To replace SMD normally require good soldering skills, I highly recommend to ask a professional to troubleshoot and complete the repair,and if you have any doubts and not sure what's going all - it could be a time to call professional, call us @ 918-264011 and we're just a phone call away!
3.Power Supply failures. 03.27.20
Power Supply failures sometimes are really easy to troubleshoot and sometimes it may be not so obvious. Most common symptoms of failed Power Supply are:
The set is dead, no response whatsoever,
TV comes on and shuts off intermittent,
TV comes on and has good audio, but there is no video and the screen is black.
The first symptom is obvious and doesn't need a lot of troubleshooting, and everybody would check the AC fuse ( in this case it would be FP801S, 5A/250V), and if it is blown, obviously it need to be replaced with a fuse of the same value, and if TV comes on then that's all to it, it's done.
If replaced fuse got blown right away, the most common reason could be QP801CS, I've seen it quite a few times.
Intermittent problems normally are caused by cold solder, normally due to the age ( I mentioned it in previous newsletter), and capacitors issue almost uncommon today, that was quite an issue five -ten years ago.
If TV comes on, has good audio but screen is black, then is is could be a Power Supply problem, and the reason for that could a diode D9001C, and missing voltage for LED strips could may it look like it is LED strips are defective, but the problem was a Power Supply.
And, of course, there are more symptoms of a bad Power Supply, but those are the most common which could be found in everyday TV service and repair.
And again, TV repair require a lot of experience and professional training, and if your NOT a PROFESSIONAL TECHNICIAN - you're doing it at your own risk, We strongly advice call for professional help, you may call to local repair shop, or just call us, we can do it . Or you can call us always if you got a question @ 918-2640116, Joe.
4.T-Con Board failures 03.27.20
T-Con Board failures may not be so obvious as LED strips failures or Power Supply failures, however, here are some most typical problems which may be caused by T-Con boards:
No picture, sound is fine.
Lines, sound is good.
TV won't come at all.
Half screen picture is fine, half screen - no picture, and other problems.
The easiest way to confirm if the T-Con board if defective is to replace it with a new one, some T-Con Bards are repairable, and there are some repair kits to repair T-Con Boards, except soldering skills required, and replace the board (like any other) possible only with the same board, and exactly with the same part number. And also, when T-Con is replaced, flexible ribbon cables may need to be attached properly, improper connection may cause is loss of picture or distorted picture. Once T-Con Board replaced, it doesn't required any adjustments or programming. New T-Con Board may last for another years, providing the panel is not defective. It was a common problem with 70" VIZIO: once T-Con replaced - TV comes fine, but few seconds later T-Con fails, and the reason was - defective panel.
Those were the most common T-Con failures, and of course there many more, and like always, if you would have any questions give us a call @ 918-2640116. Joe.
5.Remote control won't work. 03.30.20
This is also a common problem with the TV - it won't respond to any remote command.
In this case we need to see if it is the remote control that doesn't work, or it is the TV itself.
So, after the battery has been replaced, and TV still won't respond to the remote, you may need to test the remote (see the picture next to this article), I will explain the picture:
Aim the remote to your cell phone (cell phone should be in camera mode), and press and hold Power button on the remote - and you supposed to see a series of flashes in your phone screen - and that tells you that your remote is in good condition and nothing wrong with it, and the problem is with a the TV.
There are two boards which are responsible for the TV responding to the remote control commands: IR Receiver Board and Main Board.
Main and the most often failing component in the IR receiver Board is Infrared IR receiver crystal, and it could be easily replaced, it is only 3 pin component, and there are only a few components on that board which is really easy to troubleshoot. So, if the crystal (or the whole IR Receiver Board) is replaced, and the TV still won't respond to the remote - the only thing left to troubleshoot is the Main Board.
As I mentioned above, mostly the IR Board is responsible for this type of a problem, and consequently Main Board almost never cause remote control problems, but it still happens. In this case repair on component level will require a high level of experience in electronics repair, and in this case it need to be professionally troubleshooted and repaired or the whole Main board need to be replaced. And before you order part, make sure you have Model number and the PART number then you can order it. But the main board is a one of the most expensive boards in the TV, so before you order it, consider this: How old is the TV, what's the size of the screen, and how does picture look on this TV?
And here is a brief summary of everything previously mentioned:
1.If battery replaced and it didn't help, then
2.After you checked your remote with the camera and see flashing light on the camera ( obviously if there is no flashing lights - then remote needs to be replaced), then
3. You replaced the IR crystal ( or the whole board) and it still didn't help, then
4. Main board need to be replaced.
First two steps could be done easily by anyone, the latter two should be done by experienced technician.
And if you still have any questions regarding this issue or any other issue with your TV - we are just a phone call away, or just feel up our CONTACT form and we will get back to you as soon as possible.
Most repaired TVs. 03.31.20
Today we begin an overview of the most repaired TVs. With an experience well over 40 years I can look back and see how it's developed form a small black and white TV then to ultra modern OLED TV today.
In this article I am not planing to talk about 25-30 years old CRT (Cathode Ray Tube) TVs for simple reason: they are mostly gone (we get only one or two calls per month or so for those TVs lately), neither I am going to talk about Rear Projection TVs (Front Projection TVs were also in circulation but not as long as a Rear Projection TV by now means) for the same reasons: we almost never get calls for those TVs, so I assume that those two classes of TVs are almost gone.
Next class would be DLP TVs.Those TVs are still in circulation for a good reasons: They are low maintenance (mostly just a lamp need to be replaced and TV is good for another few years). DLP TVs have great sound (in many cases better than today's LED TVs have), They (DLP TVs) could have a huge screen size (even for today's standards) 73" or even 83" They are not as heavy as the CRT TVs used to be, so it was relatively easy to move it if needed.
Next class would be Plasma TVs. They are still around and people are planning to have them for a while. I am not talking about the very first ones (Pioneer, RCA TVs), but mostly Samsung Plasma TVs, LG and other brands. Plasma TVs have definitely great picture, good sound (with speakers facing forward, unlike some LED TVs) and come with good screen sizes.There are few disadvantages for plasma TVs: they are relatively heavy, higher power consumption and few more.
The next class would be LCD TVs. From outside they may look like Plasma TVs ( but a lot lighter) and less power consumption. They also have a good picture and sound, easy to move around the house and came with a relatively big screen size (up to 60"). We don't get a lot of calls for those LCD TVs lately.
Next class would be LED TVs, and that's would be the class of TVs we get most of the calls every single day. We are gonna go into details what is the brand we're getting most of the calls, and what is the brand we're getting the least calls.
Before I will go into specifics, I would like to specify, even though I think it is not very important, I am gonna be talking TV repair in Tulsa OK, even though it may differ a bit in a different regions or states, not by much though.
I am gonna be talking about the most repaired TVs for the last two to three years. Also, I want to make it clear from the start, most repaired TVs - it is just most repaired TVs, they are not the worst quality TVs. I think some of the TVs (Samsung Flat Screen TVs, for example) were sold in such a big numbers, so if a small fraction of them end up in TV repair, it is just because they sold a whole lot of them.
1. VIZIO LED Flat Screen TV. The most often repaired are the VIZIO LED TVs, and the most often repaired would be 50" to 55" VIZIO LED TVs. The average lifespan for those TVs are two to three years before they fail first time, normally they are easily repairable.With us most of the repairs are done in home TV repair. In some cases, like backlight repair, we may need to pick it up, because the whole process of LED strips replacement may take up to two to three hours, depends on a model. Bigger VIZIO LED TVs ( 60" to 65") have mostly similar problems, however bigger screen models ( 70'') in addition to previously mentioned issues may have panel failures issues, which makes repair absolutely beyond any economical repair. In conclusion, FLat Screen LED VIZIO TVs are good TVs, they have a great picture and sound, WI-FI capability and they last up to two to three years and they are reasonably priced.
2.LG LED TVs. LG Flat Screen TVs are good for the same two to four years, in some cases they do last longer, but like in every brand -LG brand has models that last longer and there are models that last not as long. This brand (LG) has pretty much the same or comparable specs as other brands. Due to a limited amount of hours of LED strips bulbs LG has similar issues with a backlight. So, in conclusion LG Flat Screen LED TVs have similar set of faults as other brands, but somehow we have less calls for LG LED TVs then VIZIO Flat Screen LED TVs.
3. Samsung LED Flat Screen TV. A fraction of all of our repairs is Samsung Flat Screen TV repair, since we do in home TV repair, then most of the repairs done in customers homes. Also that fact that unnecessary moving TV from place to place (from room to room, or from home to the repair shop and back) may cause panel damage which makes it beyond economical repair. Since we specialize in Samsung Flat Screen TV repair, and we get calls not only from Tulsa Greater area, but from surrounding areas for Samsung LED TV repair. And, personally, I think Samsung is a great brand and very reliable, but since it is sold in such huge numbers plus we get calls not locally only, but from surrounding areas: Broken Arrow , Bixby, Jenks and lot more, and that seems to be a reason for such big number for Samsung Flat Screen TV repair, and like I said already, most of them are fixed in customers houses. In addition to all the common problems mentioned above for other two brands, Samsung TV may have a specific problem with "all in one" box, sometimes that box is repairable, sometimes it should be replaced since it's not so expensive. Samsung LED TV also has a great advantage over the other brands: Panel failure for Samsung TV is a lot lower compare to other brands. In conclusion, when it comes to Samsung TV repair - is always reasonably priced and repairable ( providing that the TV is not so old and parts are still available).
And in conclusion of this overview I would like to mention something that most of the LED/OLED TV already may know: LED panes ( screens) could be easily damaged and that makes it absolutely beyond economical repair, so as long as your TV's screen is not cracked -most likely it's repairable. And one more thing you could do for your TV to avoid unnecessary repairs - keep your TV plugged in into Power Surge Protector, it will rectify power spikes making it safer for TV.
TV Repair Cases. 04.07.20
Today we begin a new series of the repair cases and it's gonna be the newer models, LED FLat Screen TVs, we may see the other types of TVs, such as: Plasma, DLP, LCD, and may be repair projection TV if we will get requests for this kind of TVs.
So, we begin with a Flat Screen LED TVs, and because we specialize in Samsung LED Flat Screen TVs and SONY OLED/LED TVs, that's why most of the repairs will be either Samsung or SONY brands, of course it could be some other brands.
And before we begin with a repair cases, I would like to cover one of the most often case - Cracked LED Screen. We calls regarding cracked screens every single day, few times a day. Unfortunately - no warranty ( neither manufactory nor store warranty) will cover cracked screen, so if your TV is less then a day old ( you just brought home from the store) or just a few days old - it's your TV now. And regardless of the size of the screen, even if it is 75'' or bigger TV, IT IS cheaper to buy a whole new TV rather then try to replace the panel, and that's why mowing and handling TVs should should be done with utmost caution and care. And once the TV placed in the place it's gonna be, then it would be a good idea no toys "flying" near the screen, most of the reasons we got a cracked screen calls - either remote "flew" wrong way or a baby toys flew to far.. The large Flat Screens TV are still expensive, and screen could be cracked very easily, so that's why of the reasons we make housecalls and do in home Flat Screen TV repair.
VIZIO LED TV 65" 04.08.20
We got 65" LED Flat Screen TV VIZIO, model number E65-C3, with a very common symptom: TV won't come on, but whit light on the bottom comes on, however TV won't respond neither to the remote nor to control panel ( on the back of the TV) and there is no faint picture even if the flashlight used - so TV simply won't respond, but the AC power comes in.
So, from here we know: there is AC is coming in, and after the main board was disconnected the B+ line is good, and when the main board connected then B+ goes down, which means that main board is defective and need to be replaced. Main board should be
replaced with exactly the same one, and when placing the order - the model number and the serial number ( also part number of the board itself) will be needed. NEVER replace the main board just by the model number ( because there are few different part numbers could be for the same model number). And the main board is replaced, TV normally comes on, and no adjustments are needed. Main board failures normally caused by a power surges and to prevent this from happening again TV should be plugged in into a Power Surge Protector.
And in conclusion, this model normally last between three and five years, and has a good picture and sound, and once it's fixed it could be good for another few years unless LED strips begin to fail, but this is also quite repairable, but about this issue we will talk in another post. Joe.
How long do TVs last ? 04.09.20
In this overview I will talk about lifespan of different types of TVs. I still remember older box CRT ( Cathode Ray Tube) TVs, and a process of about of 40 -45 years to evolve into such a great TVs (it stands for a reason why the they call it a theater nowdays), with a perfect picture and rich sound ( newer LED TVs don't have that great sound, but it could be easily fixed by adding a surround sound or just a sound bar. And, of course, those LED TVs didn't evolved from CRT TVs, it took years and many types of TVs: Large Tube CRT TVs, Rear Projection TV ( Front Projection TVs weren't long in circulation), Plasma TVs, DLP TVs, LCD TVs, LED TVs, and finally OLED TVs!
I will briefly summarize pros and cons of all those types of TVs and spend more time on the current LED TVs.
CRT TVs. I started to work with consumer electronics ( TVs and Radios) in the mid 70s, a little bit over 40 years ago. I've seen black and white TVs and color TVs with a smaller screens. In the mid 80s color TVs became more available, smaller screens, as 17" and 19", eventually 27" TVs became very popular. Picture was reasonably good. In the mid 90s more and more Big Tube CRT TVs became available- 35" and even 40", Mitsubishi was one of the brands making 40" TVs. Most of the repairs of CRT TVs were reasonably priced. Very common were vertical deflection repairs (LA7837/LA7838 Vertical output ICs,), High Voltage failures ( Flyback and Horizontal Output Transistor) and other repairs, but those were the most common. All repairs were done on component level, and as long as it wasn't CRT Tube - repair was always justified, and CRT " - screen" could last up to 25 years, so those bulky and heavy TVs used to last up to 25 years
Rear Projection TVs. Mainly it was RCA, Mitsubishi, Philips. Very often it was wooden boxed TVs, looking like a piece of furniture, sometimes with a folding doors in front of the screen. With a screen ration of 3/4 the size of the TV looked huge, even though the screen size was 65" - 70". Sound was great too, about 12" speakers and wooden cabinet made sound really rich. The most expensive parts in this type of the TV -were CRT tubes ("guns"): blur, red and green. This type of the TV used to last less then previous type, the CRT, - it could last up to 20 years, but before that it could be repaired at least once or twice or even more, but it worth it - good picture and theatrical sound made it all worth it. They (Rear Projection TVs) were huge and bulky, but very often they had a small wheels which made it easier to move it. Few words about Front Projection TVs - they weren't around as long as Rear Projection TVs.
Plasma TVs. I remember first Plasma TVs, for example Pioneer TVs, RCA, LG, Philips and others, but those I mentioned were the most seen around. Plasma TVs were extremely heavy and very often it require two man to move the TV from place to place. Of course the resolution was relatively low, eventually it got a whole lot higher. Very first Plasma TVs used to last also very long time, we still get calls for those Pioneer TVs, and once they all done- the picture is great, so some of them used to last around 20 years, not all of them but some of them did. We do get newer plasma TVs for repair, of course they are a lot lighter, and a lot higher resolution, and of course if is a bigger screen now - 60" or even 65". The plasma panel was a great invention, which made it possible to have a great picture with very rich color and awesome resolution eventually. Plasma panels were supposed to last up to 100 000 hours, and some of them did last that long. Of course, some repairs were done ( power supply , sustain boards, main board, and others) but as long as panel was good - the TVs were normally got repaired. In addition to the heavy weight, which made it hard to move there was another drawback - the power consumption was relatively high, but again - picture was so good compare to the previous type TVs ( CRT TVs and rear projection TVs) so Plasma TVs gave a lot of fun and enjoyment!
DLP TVs. This type of TV ( DLP - Digital Light Processing) also drastically differs from previous type. Without going to details, it was awesome Invention - a bigger screen 65" - 70", with great picture and a very rich sound. Eventually the screen size got even bigger - 83" and even 93"! And those "monsters" were not as heavy as their predecessors. So, it was all good - huge size, great sound, good picture, relatively lower power consumption, and very low maintenance, I will come back to it a little later. DLP TVs began to replace the previous type TVs, but with all those features were at least a couple of flosses - they were bulky, which made it inconvenient for some places, and quality of the picture significantly diminished if TV was not viewed from straight across point, and back to maintenance - the lamp had to be replaced about every two to 3 years, in some cases more often - depends on the amount of the hours the TV was on. DLP bulbs were supposed to last up to 8 000 hours, it's very promising number, but normally they didn't last that long. But still, it was really easy to order them ( just provide TV's model number) and anybody could replace it, and it could be good for another few years, and after 8 to 10 years of the TV may develop a very specific problem - TV comes on fine, but it would be a lot of white dots on the screen and it was easily repaired - a chip would have to replaced - and TV is good for another 8 to 10 years ( of course the bulb would have to be replace meanwhile every 2 to 3 years) and those two the most common thing to take care of and TV would running great.
And of course there were some other problems with DLP TVs, but not as often, not at all. We still got calls for the DLP TVs, people still have them, the are still around, very often they are used for video games: huge screen and great sound makes it look like a theater!
LCD TVs. This type of TVs were ,probably, the least popular, even though they were lighter then plasma, picture was good and they used to last a few years. We don't get calls for this type of TVs for a few years at least, for some reason they ( LCD TVs ) didn't make it, however they did have a few good points: They were lighter then plasma TVs , reasonably good picture and sound, and they didn't last as long as plasma TVs used to last.
LED TVs, This type of TVs became very popular last 8 - years ago. They also called "LED Flat Screen TVs''. And, of course, they became a major portion of daily calls for service and repair. Since we specialize in SONY OLED/LED TVs and Samsung Flat Screen TVs service and repair. and thus we get a whole lot of TVs of those two brands, and, of course, we get other brands too: VIZIO, LG, SHARP, and others.First of all, today's LED TVs are far more advanced compare to LED TVs 7 - years ago. How long today's LED TV last? If TV plugged in either surge protector or conditioner then TV may last a lot longer then if it used otherwise. Next. The duration and frequency the TV is used - is the most important point, LED lights determine how long the TV may last, and keeping TV on max brightness shortens the lifespan significantly. Back to LED lifespan: Samsung claims that their LED should last about 100 000 hours, so if TV stays on for 6 hours a day, then TV should last up to 45 years, providing that all the rest of the TV works fine, however any power surge may damage/destroy main board, power supply may also fail, and the other boards may fail also. So, the longest lifespan of TVs I've seen was about 25 years, and it was about 30-35 years ago, and it was CRT TVs, The average lifespan for LED TVs today is not 45 years, not even half of it, not even 10 years. My longest lasting LED TV I've seen was Samsung LED TV 60", which was about 9 years old, First repair, and LED strips needed to be replaced. So, LED TVs are great TVs, they have grate picture, WI-FI capability, very easy to move, big screen size - 70" - 75" becomes very popular today.
And in conclusion, few words about LED Flat Screen TVs flaws. First of all: I mentioned it already, LED strips. Next. Main boards are very sensitive to power surges, power supply boards failing less often now. T-con and other bards failing even less often. And the main problem with LED TVs, makes it beyond and repair at all - the panel. With all the great picture the screen cannot withstand any mechanical pressure, so any hit, or crack, of flexing of the screen, - damages the panel which makes replacing it beyond economical repair, and we get a lot of calls for this issue every day. So, if this issue will be fixed one day, and LED panels will become unbreakable, or less breakable -LED/OLED TVs will be the best TVs ever!
White circles on the screen. 04.23.20
This is not as common defect with LED TVs: TV comes on fine, there is a picture, good sound, TV stays on just fine, except on flow - white circles "behind" picture. The circles are about one inch in diameter, color - bright white color, location -it could be anywhere in the screen, age of the TV is about three years .
As I said this before - this is not very common problem with Flat Screen LED TV, for all the time LED TVs were around, I didn't see this problem, except lately, and just very few times, and I think it's (this defect)gonna be happening more and more often. So, while TV comes on fine, with good picture, but there are a white circles, it may be just a single circle in the beginning, or it may start with a few of them at once, and eventually they may multiply in numbers. This TV, Samsung 65", was called for repair with about twenty circles. The reason for the circles are diffusing lenses that are falling off the LED elemnts. It may happen because of they were not attached properly or just due to the age of LED strips. Anyway, it repaired in one of the two ways: either replace all LED strips ( which is expensive and time consuming), or try to reattach the fallen off diffusing leneses, in this case it's gonna be cheaper, however the other lenses may also fall off one by one eventually. Also, reattachhing lenses improperly may cause different kind of cirles, which look almost like a shadow, so it's need to be done properly, and if it's done right, it won't be noticeable that something was wrong with it.
And, as I mentiong LED strip replacing as a first option, they ( LED Striips) suppose to last up to 50 000 hours, so if the TV is that old, or getting close to that amount of hours, it's probably a good idea to replace all the LED strips at once. So, it's like a killing two birds with one stone: brand new strips, and lenses will stay on for at least a few years.
Repair or Replace?
TV types. 04.28.20
Repair or Replace? That is - TV, to repair it or replace. In this overview I will try explain when it could be a good idea to fix the TV and when it would be a better choice just to replace it. First of all if my TV would fail, I would ask myself few questions:
How old is the TV?
How much life left in this TV?
How long it will take to get the TV done?
And, last and not the least - how much it may cost to get the TV repaeired.
And, of course, there will be a lot of less important questions like : If TV got replaced - will it fit to the place where the old one used to be, or the stand will have to replaced, or should I mount the TV on the wall?
If TV will be replaced, will I get bigger size TV or it's gonna be the same size? Anyway, first four questions would be the first the first quesitons to answer before I would makle the decision which way to go - repair or replace.
Now I will consider all major types of TVs for potential repair.
CRT TVs. CRT TVs are almost gone, and if that kind of TV is dies, people always get it replaced, only if that TV has sentimental value- then it may be repaired, otherwise, like I said earlier - it just replaced.
Rear Projection TVs - exactly the same situation - almost always they are replaced, unless there are some sentimental values or some memories or something of that kind of things.
Plasma TVs. Those TVs are still around, and we do get a lot of calls for Plasma TV service and repair. There are only few brands we get calls for : Panasonic - 50" - 55" ( a whole lot less for 60"), we still fix it, and of course - if parts are still available, LG - the same sizes, and Samsung Plasma TVs. This is the most often brand ( Samsung ) we still see between other plasma brands - there are still many of them - and for a good reasons: they builst great, and thus last longer, they have really great picture, so when they fail - people normally trying to get an estimate for repair cost, and quite often they get it done. Once in a very rare while -screen get cracked - then the TV is beyond any economical repair, in this case TV need to be replaced. Otherwise Samsung Plasma TVs are normally get repaired for two simple reasons: repair price is normally rasonable, and once it fixed - picture is really good!
DLP TVs. This kind of TV normally is really easy to maintain and very inexpensive. I think that DLP TVs are great TVs, for a few reasons: there are only few problems with them: a bulb ( which isn't expensive, and very easy to replace), DMD Chip - this a more expensive repair then in first case, but it happens only in 8 to 10 years of usage, and once it done it is good for another 8 to 10 years again; and a one more common problem with a DLP TVs is a Color Wheel assembly. Like with DMD chip, Color Wheel Assembly need to be replaced by a professional technician to avoid unnecessary repairs. So, those are three the most common repairs, and in most cases it is a bulb that may need to be replaced. The word of caution: the replacement bulb should be the exactly the same as it was installed in the TV, and need to be original brand part, otherwise if it was bought online ( very cheap!) TV may work for two - three months, and will get back to the same symptoms - black screen. Except this time in additon to a new bulb the ballast may need to be replaced as well.
And there are few more less common problems with DLP TVs: Main board may go bad, very uncommon for this kind of TV, uless you got a power surge, next -power supply failure - also very uncommon for DLP TV, normally it happens for the same reason - power surge. Other then that - there is no so many problems with this type of TV. And again, DLP TVs are great TVs, easy and inexpensive maintenance with a good picture and big screen sizes ( up to 93") and a really rich sound - all that makes it really easy to decide rather to fix it then to replace it. Most often we get Mitsubishi brand, all other brands are almost gone or replaced, at least we almost never get calls for other brands.
LCD TVs. This type of TV is differs from the Plasma TVs by the weight ( Plasma TVs could be a whole lot heawier then LCD TV of the same size) and also by the screen type and consequently deffernt power consumption. This type of TV had a common problem with a converter boards. LCD elements used to last quite long. It was a longer lasting TVs, there were a few problems with them, but somehow once LED TVs came up later, most of them were replaced, and very often even without trying to fix it.
LED TVs. This kind of TVs has been around for almost twenty years. LED TVs have a lot advantages compare to Plasma TVs: Lighter , bigger screens, easier to repair, and if LED strpis failed and replaced - then TV may last again for another few years. However, there is a great disadvantage with LED TVs ( same true for LCD TVs) - the screen is fragile, and could be really easily damaged and thus it becomes beyond economical repair. However, that's the only disadvantage of LED TVs. LED TVs have few common problems and normally reasonably repaired and could be done as in home repair , without taking it to the shop, except for LED Strips replacement, in this case it should be picked up and for in shop repair. Replacing LED Strips normally a time consuming procedure, and also require a lot experience. Even the the concept of replacing of the strips is not compicated by no measns, the utmost caution needed while remowing and istalling back panel, even slight pressuare or flexing may ruin the most expensive part of the TV - and you may not even know that ( that the panel is damaged already) untill you put everythitn back, you get the TV assembled, powered up and that you see that is damaged, so this kind of repair need to be done by a professional in the shop, and like I mentioned before, the new strips should last for another few years, providing that the TV will stay the same amount of hours. How long does the strip should last? There are some numbers, some of them are promising to run up to 50000 hours, which means up to six years of continious use. And to summurise it all : Flat Screen LED TV repair could be done as in home TV repair, except rare cases.
OLED TVs. We don't have a lot of calls for OLED TVs, but whatever we repaired, it was always in home repaired, and always worth repairing, but like I said, we didn't get a lot of calls for this type of TVs, otherwise they are always easily repairable.
And, in conclusion. CRT TVs almost replaced, except if it has a suntimenal value. Rear Projection TVs are mostly replaced for few reasons : parts may not be available and not so many people today know how to fix this kind of TVs. DLP TVs still repairable and people fix them because it's so easy to fix them and it also very reasonable. Plasma TVs - we do get a lot of calls for those TVs and they are repairable and repared quite often. LCD/LDED TVs are repairable, and also they are repaired in home, which is very convenient for the bigger size TVs. Since they are newer TVs, parts are mostly available, even though some of them may be backordered, but eventually we get them all. So, once they
get fixed, they may last for another few years, especially if the repair price is normally a fraction of what was paid for it. OLED TVs - in my experience they always worth repairing, those TVs are graet and defenitly worth keeping.