how to repair amplifier no sound

[@electronicshelpcare]

electronicshelpcare.com/

[@samuelmensah1466]

Wish you well in your education, thanks for updates

[@thomasblamah3086]

I like the work

[@DanielImmanuel2143]

This may be possible....BUT, STK's were designed with overload protection, thermal shutdown and bootstrap features. Akai designed circuits around available semiconductor devices at the time. This is a dire straits situation if no STK's are available then yes. Sound characteristics may differ since transistor hfe are not exactly the same. Unless STK specify equivalent transistor circuits.

[@nmgt1048]

Quite similar to the work I had been doing when it came to solid state amplifier repair except the STKs were available (1972 to around 2000). I got so experienced with transistor amps that I even made some from scratch in the late 1970s early 1980s. They still work now, trouble free.

[@frankdaddyoh6811]

If you made a STK 0039 from discrete components , I would be interested in that....

[@jaimeapazafuentes7634]

Buen día saludos para stk 040 que transitor se puede usar

[@manuelorellana93562]

¡Genial! me dio esperanzas, tengo el mismo ampli, pero nadie en Argentina tiene los repuestos de esos integrados, no me resignaba a deshacerme de el, y ahora menos que menos! gracias por este tutorial

[@cristianalderrod2037]

hola joaquin soy de rafaela provincia de santa fe...argentina tengo el mismo amplificador y el canal b me quema los parlantes... me di cuanta que es por los integrados... pudiste arreglar el tuyo con esta solucion ? saludos

[@putradhogiel9696]

Baru tau kalau stk bisa di ganti PNP & npn sangat luar biasa👍👍👍

[@cobraracer1263]

Esto si funciona!? Es el mejor puto vídeo eso se necesita para reemplazar estas guevonadsss ome felicitaciones

[@hermiedelossantos5569]

Excuse me sir you cannot replace darlington, to a single transistor just like that.. What about your drive and biassing circuit.?

[@CVH72audio]

I agree with you have no good result

[@thomasrose7713]

Killer music to replace your transistor to!

[@suwitobastian3552]

Norman gates ...absolutely right. I have try and done but no succeed It's impossible cause final TR need bias regulator and driver...

[@nicusecan7998]

Hi! great job! You can help me with the SVI4004 on Technics amplifier? What can I put instead? and some schematic working. Please help me! 😔

[@kareemmahmood9896]

Hello my friend, you are brilliant at this work. Thank you for this information. It was very useful to him Item 0040 It has been unemployed for a long time, and my question is, when the transistor is replaced with 2, it still has the same power. Should I leave the middle connections permanently? Thank you very much, Your Honor.

[@xltaudiotech2033]

yes you can, but dont forget the driver transistor inside (stk) you need to check it for biasing. ;P

[@CVH72audio]

Bad idiea, power output's not enough and bias's higher

[@polcudennec7413]

Very good idea regarding the prices of hybrid obsolet units ! many thanks !

[@peterjmcgee4680]

It would have been nice if you could have focused on the npn that's would be able to tell which one you were using but obviously you were going too fast and if you really didn't consider that other people might want to know

[@javierfernandez1808]

STK0039 es cuasicomplementario, lleva 2 transistores NPN, y el STK0040 es complementario, lleva un NPN y un PNP, además esos son darlington, el A1943 y el C5200 no lo son, necesita transistores drivers, falta el ajuste de bias también.

[@dwgwnr1969]

English?

[@freddygamboa7981]

Total amigo , realmente no es correcto ese reemplazo 🙄🙄

[@aikonlatigid]

I dunno if stk IC could replace by simple transistor, usually I prefer remove motherboard overall

[@neutrodyne]

I agree. You can't replace a Darlington IC Circuit with just 2 bipolor transistors and then expect it to work properly.

[@franciscoaramontemartinez4369]

Que se hace con la relacion interna de los pines 3 y 8. y el pin 1 y 10 entre ello hay varias piezas ?

[@SuperArgentun]

Se los puentea

[@luisalberto612]

GRACIAS por publicar el circuito completo del STK 0050. tendras el circuito completo del STK 0029, tengo un technics SA-202 con un canal quemado. muchas gracias por tu generosidad.

Cách chuyển IC sang TRANSISTOR ampli👍

[@dientudoannguyen0403]

😂😂😂

[@richievalenz6856]

Ni siquiera se ve terminado ,así que no se sabe si de verdad ,funcionó así ,y si lo hace que tanto dure ,por qué no trae los integrados originales.

[@tavoconstellation6230]

Cómo estas amigo me gustaria conocerte tengo varios de esos equipos hace mucho esperaba algo asi no hagas caso a los que te critican, quienes lo hacen no aceptan qué tienes ingenio!!

[@daniyare6776]

не так давно ремонтировал усилитель TRIO-7500. там тоже была сгоревшаю микросхема(микросборка) TA-100 (типа STK). Цена на нее очень высокая, порядка 200$ Пришлось проектировать и травить плату взамен этой микросборки.

[@frankdaddyoh6811]

I DON'T SEE A PART 2 .... so I don't know if this even works , to me , changing darlington transistors with one transistor does not sound right.....

[@davidknightaudio934]

no its not he has no drivers for the outputs or biasing and temp compensatiion vbe-x or diodes either lol

[@davidknightaudio934]

but aparently in part two he is going to make the whole chip replacement so we will see

[@lucataszarek8782]

Hello, Mr. great movie 👍👍👍 you are able to tell me what I could change Sanyo rsn3305 to technics sa-ex120

[@angelitogalope1930]

Dear Sir, may i have a question regarding amplifier technics power IC STK 2068 II , The problem we dont have available parts especially this Power IC, pls if possible try to help me how to convert to ordinary power transistor or else if you have an IC pls i will buy it...thank you very much and more power god bless you...

[@atmeletronica4692]

Hello all right, I ask you I have a Receiver The Fisher Sr 2004A the audio outputs are STK can I replace with which Transistor to be stronger?

[@williamwong5627]

I did replaced (not knowing) the output transistors were Darlingtons with normal ones on a Crown D150 amplifier. It hummed like hell.😢 It won't work.

[@emmanuelbuxin8610]

Great ! We had exactly the same in 80's. This is typically the death reason of this amplifier.

[@DAVIDGREGORYKERR]

It is not possible to get some of the STK***** modules as they have been discontinued so if you can replicate the chip from the circuit diagram using descretes then that is the way to go.

[@ИльяКоротаев-б9я]

Замена на 2 мощных транзистора разной проводимости в одном корпусе! Правда тяжело выпаивать 10 ножек без отсоса?

[@evansfavour2337]

Does this method work in any STK or it has a particular number it worked with

[@Dharmybest]

That's very brilliant but I found out that there's some STK with more than 10 pin. So what do we do when that happen

[@user-nd5vi2lo8w]

Hi there. Got JVC ja s 22 and is dead. No sound at all through speakers or phones input. It turns on, lights are present, can hear transformer but no sound. What to buy best? Original sanyo stk0040 or replacement. Any difference in sound? Thanks

[@elquinandrescaicedo]

hi, can you please indicate what transistor reference i use and what the video does not show? in advance thanks for the solution

[@coilsandelectricmotor8700]

like this work but haven't done enough of it

[@davidloader6550]

Hello, could you make a video for the STK402-090, would it be the same ????

[@SALEFA21]

Hy sir,I'm form Indonesia, please ,,I will show your realistict video,don't only schema.. Thanks....

[@skyl8029]

Where can I find a similar clip with a STK402-090S or STK402-090SB transistor?

[@quantuminpluschannel7107]

Your tester is very sensitive, is that an original sanwa?

[@robertopessoacoelho301]

Foi de maravilhosa ajuda essa dica q vc me deu obrigado 👏👏👏👏👏

[@Iwankwijana]

where is the installation video and test results

[@franciscoantoniopereztorre8300]

Saludos y excelente su vídeo tengo un amplificador Sanyo y tiene un stk 4182 || y quisiera adaptarlo a Transistor pero no el equivalente a ese espero de usted esa ayuda gracias

[@5santim500]

Hello, I have 5.1 surround sound system(home theatre) here is the problem Couple of months ago it stopped working, as in it doesn't amplify the input sound to the speakers. But just yesterday, accidentally I plugged it to 110v source(normal 220v) and it worked, of course there is a buzz sound coming out it(I guess that's because of low power), on 220v it's still not working. What could possibly have gone wrong?

[@goutam7976]

2nd transistor number not visible... Please mention... I have STK465. With Is not working .. It will be same as u doing ?

[@royalmughal007]

Bhai Sony fh7 kay deck amplifeir pay koi video banao Aur uskay ic ko tt5200 \1941 k sath replace krna bhi sikhao pls

[@danilorodriguez1757]

Lo hice hace muchos años atrás, siempre y cuando los transistores drivers y resistencias estén ok

[@PabloZalazar82]

Cómo se llaman esas cosas q le.puso nuevas? Y si van cualquiera o tienen q ser depende el equipo

[@kingsleymensah7312]

Thanks for your concern You've done well but you move fast

[@CVH72audio]

He's better than producer

[@axel0888]

Hola, tengo un stk 086 dañado, como y con que transistor lo puedo recuperar?

[@luisadonaylozanosepulveda8621]

Hello friends Greetings from Venezuela I need your help I have a technics brand amplifier model SA-EX140, the integrated IC class H model RSN 3305 OF 26 PINS burned. INTEGRATED ARE DISCONTINUED BECAUSE THEY ARE VERY OLD AND THEY DID NOT MANUFACTURE I THANK YOU VERY MUCH YOUR GRAM HELP PLEASE FRIEND

[@acue79]

puedes reemplazar el integrado con dos irs 2092 que venden en ebay cuesta 15 $ americanos www.ebay.com/itm/IRS2092S-500W-Mono-Channel-Digital-Amplifier-Class-D-HIFI-Power-Amp-Board-FAN-/184033435092 siempre y cuando sepas donde esta la entrada de audio y salida del integrado puede ser reemplazado con otro modulo ya que no los fabrican o los fabrican falsos

[@seharbyajco3523]

I have a stk032 25w 10 pin what is matched vs ?

[@balajisinghh]

Very nice Background ..LOL 😂😂🤣

[@azizahmed5360]

Dear sir hamare pass amplifier me stk ic 4151ll lage he el channel band h kya ic aap stk ic4151ll laga denge please reply kya prize ka bill hoga

[@road_wise]

can you give me datasheet of STK412-240M ic thanks

[@ronchinoy]

Do you have a source for original STK ICs.

[@johnorlitta]

The music for this video is dope, what is the song and who does it?

[@tsaitaj]

Funky space princess

[@joeyscott4299]

Nice work!!!

[@electronicshelpcare]

thanks. please watch part 2 for full video

[@joeyscott4299]

@@electronicshelpcare Thank You!

[@Iwankwijana]

@@electronicshelpcare where is the link

[@technocare6435]

This trick can be use stk 413 - 490 sayno. ????

[@construccioncasaideashogarobra]

Nice work! Saludos

Nice jobs equivalency npn pnp sc5200 sa1943

[@albert6243]

Ils jouent le rôle d'ampli en courant. "aiguillage"

[@leonardo5225]

Wahoo amplifier identical to mine! Interestingly, I always thought it had integrated circuit amplifiers

[@ryzenhuawei7705]

how about a stk 4181v sir,,can you help me

[@alvarezmail12]

Stk 4026 is posible?

[@gregoriocamacho810]

Buenos días amigo tengo una planta technics su-8011 un canal no le funciona le monte los transitore 2sc5200 y 2sa1943 y no me fuciono

[@DAVIDGREGORYKERR]

If you go with IRF devices then you should be alright as it seems to be only parts from the far east that get copied.

[@sukimansisu5291]

Nice video, thank you

[@brunoplard8170]

Bonjour ou se trouve la partie 2 merci

[@apemtushar3705]

My home theater transistor want to change but I didn't get the same number..transistor number j213 please help me out.

[@albert6243]

Tout à fait exact. J'ai déjà remplacé des transistors de puissance par des diodes musclées. Parfait. puisque ces transistors ont pour schéma équivalent des diodes non.

[@juliomunoz639]

EXELENTE EXPLICACION MUCHAS GRACIAS.-

[@johnnyzelaya1294]

Amigo tengo uno asi con ese problema y no se como areilarlo

[@sanjibroy9772]

Please make a video modify stk461 ic to transistor base akai amplifier

[@EDIWOWTV]

awesome video keep it up dude...

[@devilvortex1]

How many amps can handle Stk-0050?

[@manuelponce3994]

yo quier a segunda parte no sean malos jajajaja saludes desde honduras

[@andrewsucre8272]

i have a technics amplifier SU-Z11 Ç with STK-2028 broken , can you help me please!!

[@srijithview]

Where do you stay in India??

[@precyarong9222]

Sir ask klng kong bakit nasusunog ang speaker ano po pangunahing problima

[@МихаилВанышев]

Малочек если взялся за этот узелок я если честно сказать раньше их ремонтировали а сейчас переключился на электрику в автомабили

[@Fardeenfarwest]

Where is part 2video?

[@electronicshelpcare]

Please visit for circuit diagram www.pinterest.com/electrohelpcare/pins/

[@road_wise]

do you have a diagram for STK412-240M ic

[@rajagazi8987]

STK next 2se5200+1943 ic Chlaga

[@CoolDudeClem]

Why dont you speak? WHY DO SO MANY "HOW TO" VIDEOS ON KZbin LACK A VOICE OVER? WHY? Videos like this would be so much easier to follow if we didn't have to stop and read all the time. We are not in the age of silent movies anymore, there was something invented way back called the Talkie, look in to it.

[@kylepowell3068]

Because this person does not know what the hell they are doing. it seems to me like this is the type of person that claims to be an engineer, by reading the the first chapter of an electrical engineering textbook. Or as if taking only the first year of schooling to become an engineer and nothing more. It seems they have a very basic knowledge of the engineering of electronics but nothing more. because there is several simple and some quite drastic mistakes that this person makes in several videos if not all of them. if you wonder why they don't talk this is why because they don't have any knowledge in the subject but just a very rudimentary introduction to this field of engineering. save yourself some time and effort and heartbreak and don't attempt to rebuild the this channels work I have yet to see one that is correctly done from A to z

[@rodrigocoello914]

Muy empírico . Aunque para hacer cualquier medición tiene que quitarse el reloj.😱🤔

[@WahidputraWahidputra-v7b]

Assalamualaikum boss nak tanya boss macem caranya STK di ganti pinal toshiba boss tolong buat tutorial boss

[@sandeeptirkey9941]

Replacement IC for STK490 ?

[@arifhanafi1309]

Very good info.

[@haphizyahmad8788]

Part 2?

[@shahabmahboubi4935]

i have a amplifier but i dont have clean sound, just i have center good but laft and right bad sound

[@Leonardo777]

La segunda parte? No esta

[@klebercarneiro1872]

When will part 2 be balé?

[@bones007able]

That stereo looks like it was in water ....

[@CircuitCreator]

Great job

[@edulzuralunasin6410]

Why my Sony amplifiers once plugged it blinks for a while and gone

[@angelitogalope1930]

Hello good day po sir meron po sana akong isang itatanung po kung ok lang po meron po akong Tecnics amplifier ang IC po na gamet eh STK 2068 eh na pong stock or available anupo po bang puwedeng pamalit po salamat po

[@electronicshelpcare]

Please visit for diagram electronicshelpcare.net/speaker-protector-circuit-diagram-using-ne555n/

[@shivammehra4292]

Next video kab ayegi

[@electronicshelpcare]

electronicshelpcare.net/how-to-make-inverter-12v-dc-to-220v-ac-making-circuit-diagram-making-transformer-electronics/

[@XtraCombo-zt3zg]

Kak alat ini ada ya stkStk4030 II transistor sk3875

pourquoi mesurez-vous la tension tout le temps?

[@ryanluiz2703]

What type.of transistors are you using in substitute of STK what's its number please kindly forward the number

[@Davidslabofficial]

TTC 5200 TTA 1943

[@celsoantoniosilva242]

GOOD AFTERNOON FRIEND WHERE IS THE SECOND VIDEO I WANT VELO

[@yarlensantamaria4915]

No puede colocar transistores donde van darlinton puras menriras tus videos la base de los darlinton van internamente conectados a los driver y estos no tienen salida al los pines externos del STK .....por favor.....

[@n.saravanan8784]

How to check 8510j ic 2.1 home theater