@@DrCassette most consumers don't have analog speakers like in the end of the 90s when mini component hifi were used, they will just buy a soundbar because it will look better or just use the internal speaker
you won't believe how this mod changed my life, i did this 3 years ago, i have the 32" tv in my bedroom and didn't have space for an amplifier, i have great sound and with replaced firmware i have even better sound (i took this tv apart because it was bricked so now i found a lot of firmwares) and i can tweak audio settings in the service menu settings, i hooked up some sony speakers from a mini hifi, i did it the easy way by just connecting wires directly from a tv hole and some electrical tape (no soldering), they sound better on this tv than the thing it came with, i can wake up with high quality sound without setting up 2 timers, i can enjoy loud music all night the tv also has a lot of features, only problem with new firmware after i bricked the tv recordings are encrypted, every firmware i tried has encryption on recordings, it's also possible to use satellite tv (i tested it and works)
The difference is phenomenal, the sound from the TV's internal speakers sound like they are mono sound, not stereo etc. Using external speakers has made the sound, sound better...
Nice mod, i recently got Vox tv and first thing i have done is connected external speakers. Difference in sound is huge. I have done it differently, got cheap 2x15w amp and 12v adapter since tv came with 2 year warranty. Simple but effective.
That's exactly what I did not want to do, because you have to turn the amplifier on and off along with the TV. Are you even able to adjust the volume using the TV's remote? That's the advantage of old equipment, you can do with it whatever you want as there is no more warranty.
@@DrCassette It's connected to TV's headphone output so i can control it with remote just like i would normally. Amplifier is constantly turned on, there is no noise when working and only uses 1W of power so it's not that bad, i mounted in on back of the TV. There is also USB port on back of TV which is how i wanted to power it since it turns it on with TV but decided not to since i put movies and shows on stick so i can watch sometimes, or record shows. Would definitely go your way considering it's much simpler and uses less wires.
@@DrCassette 2.5W is enough for how loud i listen to it (considering that with 5v supply you can't even get more than 1W on 8 ohm speakers) when paired with decently efficient speakers or i could use 5v to control mosfet that would turn on amplifier. I like the way it turned out, as i said no noise when amp is in idle so i didn't want to overcomplicate things.
Man this is genius. Im thinking about buying a second hand flat tv for my dorm and my main idea was using my stereo as an amplifier but that would require extra wiring and an external selector. so im gonna plain copy your mode to use a couple of technics speakers i have laying around. Also im gonna use the external output to plug a woofer for that extra boom i need to mess with my neighbor
nice job on adding switch for speaker selection, i did the external speaker mod on one of my TV as well, but ripped the internal one and just made it external, any speaker is just sounds way better than the tiny speaker in the flat TV…
I pretty much agree as the old CRT TVs and even a commercial TV uses a speaker out, but no modern consumer grade TVs ever had that. A TV shouldn’t really have built in speakers these days at all. They should’ve add mounts and add side speakers with at least 20 watts per channel with a 2-way bass reflex setup. And it’s a lot of money to buy a sound bar. This video is very helpful and I hope manufacturers remove built in speakers and just put in speaker outputs along with a rear, middle, center, and two subwoofer outs and maybe dolby atmos speakers out. That would be even better. The built in amplifier is more than enough, but the speakers are less than 10 watts and it’s only full range drivers that don’t go below 150HZ.
@@loudspeakertestsmorebyaida3804 90% of people don't need "good" sound quality and are fine with the tv's internal speakers, but they are not fine with buying a 4k tv every year just to watch 90% of the time SD content
Nice mod! Dave Jones recently had found a rather new LG tv in his dumbster room and it had some really weird fault. The panel was fine but some of the processor’s needed reflowing. That did not end well, but it shows how easily modern ball grid array chips with lead-free solder can cause electronics to get tossed out in the dumbster because of their fragility.
The BGA chips are a common source of problems, especially when not cooled properly. My old graphics card failed due to bad BGA joints. I gave it to a friend who was brave enough to bake it in a kitchen oven. He actually managed to get a few more years of service out of the card after that. I am thinking about investing into a hot air rework station as that seems to be the best tool for at least trying to fix bad BGA joints. I am not comfortable with putting electronics into the kitchen oven and my heat gun when used on electronics has so far always done more harm than good.
@DrCassette, does it matter what the impedance or wattage is of the external speakers? Also, are your external speakers powered? I imagine the amplifier chip you pointed to can only output so much. Having said that, the results sounded amazing on your video.
The impedance of the external speakers should be the same or higher than the impedance of the internal speakers. The wattage is not critical. The external speakers are not powered, that is the advantage of this modification.
I wanted to do this to my tv as well,connect external speakers.But I was scared that maybe the external speakers would be too much for the built in amp,even though they're rated at 8ohm,10 watt.
The internal speakers of the Toshiba TV are 8 Ohms, 7 Watts. The external speakers are 8 Ohms, 20 Watts. I wouldn't use any speakers with an impedance below 8 Ohms, but that should be all that matters. Also I'd expect the Class D amplifier chip to have integrated overload protection and all that.
As long as you use external speakers with the same impedance as the internal ones the only potential problem you may encounter is distortion when listening at high volume or with particularly bassy content. This is caused by the television's amplifier being overdriven and, as DrCassette says, their should be in-built protection against overheating etc.
@@WaltonPete I was very surprised to find that the external speakers end up being louder than the internal ones. I was expecting better sound quality but lower volume. But I got both better sound quality and more volume. So I'm quite confident the built in amplifier will be powerful enough for my needs. But of course this depends on the model of television.
Actually, there are TVs that have 2.1 channels. For example, the Samsung Q70R. I removed the subwoofer and connected a passive external one, and the sound improved a lot.
It is a very simple circuit, you take the speaker outputs coming from the PCB and switch them either to the internal speakers or to the external speaker connectors. To be honest, if you need a schematic to work this out, you should probably not open the TV for your own safety...
This should me made mandatory, as it would would simplify the setup, reduce posible audio delays prevelant with current tv to amplifier type model and the cost also. They could add a display off function just to listen to audio as well.
Great mod! I did the same, but without the switch. Disabled the LCD speakers. Only one thing.. there's some white noise over the speakers now. Do you know how to eliminate this problem?
It could be that the white noise is just some inherent noise of the TV's amplifier, which is now more audible because the external speakers you have connected are more sensitive than the built-in speakers. These TV amplifiers usually are not the best. Of course if the noise is dominating the audio output, there is some sort of problem.
Hi DrCassette, that plastic white connector inside the TV, how could it be turned into RCA outputs instead? if Could you pls say how? Or link to some ready adapter that would do that. i have a samsung tv and i have active speakers (not passive like in your video) that i would like to connect to my TV. Regards/Ed
Oh... you could install RCA outputs instead of speaker outputs, but you would have to keep the volume very low to avoid overdriving the external speakers. Or reduce the audio level with a resistor network...
@@DrCassette so the signal would be to strong for active speakers, i guess its the reason why i haven't seen any rca hacks. i wish i had learned some basic electronics :) thanks for clarifying, Regards
Keep this secret 😜, the sound quality is actually good and the sound is comparable to a 90s component system and is better than all the portable and jbl speakers used today, some of them costing up to $500 and having worse sound quality It's also convenient because i can use my tv as an alarm with great sound quality and turn on/off tv without having to turn off an amplifier
If you look at the pattern on the pedestal at 2:27, it's the way the musical group Nine Inch Nails does their abbreviation...bit.ly/2SzXT6l . ~Jack, VEG
UHD and already broken? Wasn't UHD released like... Yesterday? Anyways, I don't understand why they don't add speaker level outputs on those TVs in the first place (like they did on some old tape recorders for example). Maybe they want to sell their Chinese powered soundbars.
Geh mal ruhig davon aus, daß einige Backlight LEDs bereits defekt sind, weil das Ding bestimmt schon ein paar Jahre auf dem Buckel hat. Ersatz "LED-Stripes" bekommst du sehr günstig bei Aliexpress, die Typenbezeichung steht auf den Stripes, außerdem sind die Stripes zusätzlich mit A,B,C oder Zahlen kodiert.
Bislang sind mir keine Dunkelstellen aufgefallen. Da das Display aber ohnehin einen größeren Kratzer hat, würde ich da nicht mehr die Arbeit investieren wollen, ein neues Backlight einzubauen. Der Kratzer ist mir dummerweise erst aufgefallen, als ich den Bildschirm ganz am Ende aller Arbeiten sauber gemacht habe.
@@DrCassette I already did I didn't have the switch to choose between the internal speakers and the external ones so I did solder some RCA connectors directly to The internal speakers anyway it does work and the sound quality is spectacular I'm very happy because you did upload this video it was very helpful actually it was too much helpful and I was just wondering why I never thought of doing this I mean the idea is very basic I guess I'm just a stupid person 😜 I almost forgot I wish you a happy Christmas 😊
I don't want a receiver as you have to turn it on and off along with the TV and you need a second remote control to control the volume. It makes everything more complicated than necessary.
Where’s the fun in buying a sound bar, when he can enjoy the time spent creating/modifying?... @drcassette did you ever do a tutorial on this modification?
@eyemz14yoo This video is the tutorial... I don't like making my videos too detailed because they then turn out very long. Also it's my way of making sure nobody without the necessary basic knowledge of electricity and electronics opens up their TV without knowing of the potential dangers.
![Chino Pacas - Modo Capone (with Drake & Fuerza Regida) [Video Oficial]](http://i.ytimg.com/vi/zjv8TQ0gBkg/mqdefault.jpg)
What a difference in sound! Clever modification! Thanks for posting this.
Thank you for watching! :)
This needs to be a standard for these flat tvs it saves energy, less clutter yet making the sound better
Terminals for external speakers would be a relatively cheap feature to add to a TV, but for some reason only very few TVs have it.
@@DrCassette most consumers don't have analog speakers like in the end of the 90s when mini component hifi were used, they will just buy a soundbar because it will look better or just use the internal speaker
Those bookshelf speakers handle that audio very nicely... Good job!!
All the best for 2019!!!
Thank you! The speakers are surprisingly good considering they once came as part of a really cheap stereo system.
you won't believe how this mod changed my life, i did this 3 years ago, i have the 32" tv in my bedroom and didn't have space for an amplifier, i have great sound and with replaced firmware i have even better sound (i took this tv apart because it was bricked so now i found a lot of firmwares) and i can tweak audio settings in the service menu settings, i hooked up some sony speakers from a mini hifi, i did it the easy way by just connecting wires directly from a tv hole and some electrical tape (no soldering), they sound better on this tv than the thing it came with, i can wake up with high quality sound without setting up 2 timers, i can enjoy loud music all night
the tv also has a lot of features, only problem with new firmware after i bricked the tv recordings are encrypted, every firmware i tried has encryption on recordings, it's also possible to use satellite tv (i tested it and works)
The difference is phenomenal, the sound from the TV's internal speakers sound like they are mono sound, not stereo etc. Using external speakers has made the sound, sound better...
Nice mod, i recently got Vox tv and first thing i have done is connected external speakers. Difference in sound is huge. I have done it differently, got cheap 2x15w amp and 12v adapter since tv came with 2 year warranty. Simple but effective.
That's exactly what I did not want to do, because you have to turn the amplifier on and off along with the TV. Are you even able to adjust the volume using the TV's remote? That's the advantage of old equipment, you can do with it whatever you want as there is no more warranty.
@@DrCassette It's connected to TV's headphone output so i can control it with remote just like i would normally. Amplifier is constantly turned on, there is no noise when working and only uses 1W of power so it's not that bad, i mounted in on back of the TV. There is also USB port on back of TV which is how i wanted to power it since it turns it on with TV but decided not to since i put movies and shows on stick so i can watch sometimes, or record shows. Would definitely go your way considering it's much simpler and uses less wires.
Just a normal USB port is not enough to power an amplifier anyways...
@@DrCassette 2.5W is enough for how loud i listen to it (considering that with 5v supply you can't even get more than 1W on 8 ohm speakers) when paired with decently efficient speakers or i could use 5v to control mosfet that would turn on amplifier. I like the way it turned out, as i said no noise when amp is in idle so i didn't want to overcomplicate things.
A good modification, very clever, bravo !
Thank you :)
Y am glad that you made another video this year 😊
Man this is genius. Im thinking about buying a second hand flat tv for my dorm and my main idea was using my stereo as an amplifier but that would require extra wiring and an external selector. so im gonna plain copy your mode to use a couple of technics speakers i have laying around. Also im gonna use the external output to plug a woofer for that extra boom i need to mess with my neighbor
Please don't use a subwoofer to mess with your neighbour. I have suffered under such antisocial behaviour for years. It's horrible.
Such a great mod. Think I will do the same thing.Thank you for sharing. Happy 2019.
Thank you :)
nice job on adding switch for speaker selection, i did the external speaker mod on one of my TV as well, but ripped the internal one and just made it external, any speaker is just sounds way better than the tiny speaker in the flat TV…
I wanted to keep the internal speakers because you can never know when they may come in handy...
true, but mine hasn't moved for years, its a 55 incher and im not worry about it ;)
Just did this like 2 days ago, and it sounds way better than those little ones
all flat tv's should have this and rear speaker outs and a subwoofer out rca jack on them
I pretty much agree as the old CRT TVs and even a commercial TV uses a speaker out, but no modern consumer grade TVs ever had that. A TV shouldn’t really have built in speakers these days at all. They should’ve add mounts and add side speakers with at least 20 watts per channel with a 2-way bass reflex setup. And it’s a lot of money to buy a sound bar. This video is very helpful and I hope manufacturers remove built in speakers and just put in speaker outputs along with a rear, middle, center, and two subwoofer outs and maybe dolby atmos speakers out. That would be even better. The built in amplifier is more than enough, but the speakers are less than 10 watts and it’s only full range drivers that don’t go below 150HZ.
@@loudspeakertestsmorebyaida3804 90% of people don't need "good" sound quality and are fine with the tv's internal speakers, but they are not fine with buying a 4k tv every year just to watch 90% of the time SD content
Nice little hack.Thanks for sharing :)
Nice mod! Dave Jones recently had found a rather new LG tv in his dumbster room and it had some really weird fault. The panel was fine but some of the processor’s needed reflowing. That did not end well, but it shows how easily modern ball grid array chips with lead-free solder can cause electronics to get tossed out in the dumbster because of their fragility.
The BGA chips are a common source of problems, especially when not cooled properly. My old graphics card failed due to bad BGA joints. I gave it to a friend who was brave enough to bake it in a kitchen oven. He actually managed to get a few more years of service out of the card after that. I am thinking about investing into a hot air rework station as that seems to be the best tool for at least trying to fix bad BGA joints. I am not comfortable with putting electronics into the kitchen oven and my heat gun when used on electronics has so far always done more harm than good.
@DrCassette, does it matter what the impedance or wattage is of the external speakers? Also, are your external speakers powered?
I imagine the amplifier chip you pointed to can only output so much. Having said that, the results sounded amazing on your video.
The speakers are only amplified by the tv i tried this with my tv and sounds great :)
The impedance of the external speakers should be the same or higher than the impedance of the internal speakers. The wattage is not critical. The external speakers are not powered, that is the advantage of this modification.
I wanted to do this to my tv as well,connect external speakers.But I was scared that maybe the external speakers would be too much for the built in amp,even though they're rated at 8ohm,10 watt.
The internal speakers of the Toshiba TV are 8 Ohms, 7 Watts. The external speakers are 8 Ohms, 20 Watts. I wouldn't use any speakers with an impedance below 8 Ohms, but that should be all that matters. Also I'd expect the Class D amplifier chip to have integrated overload protection and all that.
As long as you use external speakers with the same impedance as the internal ones the only potential problem you may encounter is distortion when listening at high volume or with particularly bassy content. This is caused by the television's amplifier being overdriven and, as DrCassette says, their should be in-built protection against overheating etc.
@@WaltonPete I was very surprised to find that the external speakers end up being louder than the internal ones. I was expecting better sound quality but lower volume. But I got both better sound quality and more volume. So I'm quite confident the built in amplifier will be powerful enough for my needs. But of course this depends on the model of television.
@@DrCassette used 6ohm speaker with no problem
Just what i have been looking for. Thank you!!
You are welcome. I am glad this video was helpful :)
Actually, there are TVs that have 2.1 channels. For example, the Samsung Q70R. I removed the subwoofer and connected a passive external one, and the sound improved a lot.
Maany tvs have subwoofers built in. Crts being the best!
Including how to do the wiring to the internal wire system would have made this vjdeo exceptional.
It is a very simple circuit, you take the speaker outputs coming from the PCB and switch them either to the internal speakers or to the external speaker connectors. To be honest, if you need a schematic to work this out, you should probably not open the TV for your own safety...
This should me made mandatory, as it would would simplify the setup, reduce posible audio delays prevelant with current tv to amplifier type model and the cost also. They could add a display off function just to listen to audio as well.
Very cool assembly
Great mod!
I did the same, but without the switch. Disabled the LCD speakers.
Only one thing.. there's some white noise over the speakers now. Do you know how to eliminate this problem?
It could be that the white noise is just some inherent noise of the TV's amplifier, which is now more audible because the external speakers you have connected are more sensitive than the built-in speakers. These TV amplifiers usually are not the best. Of course if the noise is dominating the audio output, there is some sort of problem.
Great video!
Would it be possible to mod it to output to a 3.5mm headphone jack or 2 RCA out?
Thanks!
You can use the scart output unless you have a usa tv or you use specific inputs that don't pass through
I might do this to a monitor with awful speakers in it. I won't have the ability to switch the outputs though
Hi DrCassette, that plastic white connector inside the TV, how could it be turned into RCA outputs instead? if Could you pls say how? Or link to some ready adapter that would do that. i have a samsung tv and i have active speakers (not passive like in your video) that i would like to connect to my TV. Regards/Ed
You could just simply plug the active speakers into the headphone output of your TV?
@@DrCassette it doesn't have any headphone output.
Oh... you could install RCA outputs instead of speaker outputs, but you would have to keep the volume very low to avoid overdriving the external speakers. Or reduce the audio level with a resistor network...
@@DrCassette so the signal would be to strong for active speakers, i guess its the reason why i haven't seen any rca hacks. i wish i had learned some basic electronics :) thanks for clarifying, Regards
Vietnamese made speakers they are pretty cool with their oval voice coil
wouldn't there be some kind of high-pass filter on the TV's speaker output?
There is a low pass filter on the output of the class D amplifier IC to filter out the switching frequency.
My tv has a compression filter for music over 0 db or (-2db), it makes the quality a bit worse
What do you think about technics su 7300
It looks like a nice amplifier, the specifications are pretty good. But there may be some contact problems in those old switches and potentiometers.
Yes they were some concact problems😂 but y cleaned them, the thing doesn't have a skratch on it😊. And also I have a pair of quadral ac110 speakers.
The bass reflex you have used, may I enquire to their ohms?
The impedance of the external speakers is the same as the impedance of the internal ones.
@@DrCassette Interesting, .. Good job! I guess the speakers are active, right ?!
@@caveman3201 No they are not active!
Really Cool.
As far as i'm looking through youtube and google, i wonder why there's no one making this kind of modification?
Keep this secret 😜, the sound quality is actually good and the sound is comparable to a 90s component system and is better than all the portable and jbl speakers used today, some of them costing up to $500 and having worse sound quality
It's also convenient because i can use my tv as an alarm with great sound quality and turn on/off tv without having to turn off an amplifier
Secretly likes Nine Inch Nails! 2:27 ~Jack, VEG
???
If you look at the pattern on the pedestal at 2:27, it's the way the musical group Nine Inch Nails does their abbreviation...bit.ly/2SzXT6l . ~Jack, VEG
I thought the same thing when I saw that emblem in the middle metal bracket
UHD and already broken?
Wasn't UHD released like...
Yesterday?
Anyways, I don't understand why they don't add speaker level outputs on those TVs in the first place (like they did on some old tape recorders for example). Maybe they want to sell their Chinese powered soundbars.
This is a FullHD TV, not UHD.
Your awsome bro
Geh mal ruhig davon aus, daß einige Backlight LEDs bereits defekt sind, weil das Ding bestimmt schon ein paar Jahre auf dem Buckel hat.
Ersatz "LED-Stripes" bekommst du sehr günstig bei Aliexpress, die Typenbezeichung steht auf den Stripes, außerdem sind die Stripes zusätzlich mit A,B,C oder Zahlen kodiert.
Bislang sind mir keine Dunkelstellen aufgefallen. Da das Display aber ohnehin einen größeren Kratzer hat, würde ich da nicht mehr die Arbeit investieren wollen, ein neues Backlight einzubauen. Der Kratzer ist mir dummerweise erst aufgefallen, als ich den Bildschirm ganz am Ende aller Arbeiten sauber gemacht habe.
@@DrCassette Bei mir sind zwei LEDs (von 45) defekt, sieht man von "außen" nicht, aber ich werde die 16€ für die fünf Stripes investieren. :)
I we'll do that right now 😀
Good luck!
@@DrCassette I already did I didn't have the switch to choose between the internal speakers and the external ones so I did solder some RCA connectors directly to The internal speakers anyway it does work and the sound quality is spectacular I'm very happy because you did upload this video it was very helpful actually it was too much helpful and I was just wondering why I never thought of doing this I mean the idea is very basic I guess I'm just a stupid person 😜
I almost forgot I wish you a happy Christmas 😊
Very interesting video Sorry my bad English
Just use the digitak audio output into a receiver
I don't want a receiver as you have to turn it on and off along with the TV and you need a second remote control to control the volume. It makes everything more complicated than necessary.
@franciscoBurrola You miss the whole point!!!
You could buy a soundbar and get better sound from that.
Why waste money if I can modify the TV and get better sound for free?
@@DrCassette How can you do it for free, you should use a soundbar, will look tidy and clutter free....
Where’s the fun in buying a sound bar, when he can enjoy the time spent creating/modifying?... @drcassette did you ever do a tutorial on this modification?
@eyemz14yoo This video is the tutorial... I don't like making my videos too detailed because they then turn out very long. Also it's my way of making sure nobody without the necessary basic knowledge of electricity and electronics opens up their TV without knowing of the potential dangers.
@@DrCassette oh that won't stop me. 😏