Restoration class H professional power amplifier // Restore huge sound amplifier
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- Опубліковано 13 лис 2023
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Restoration class H professional power amplifier // Restore huge sound amplifier
#mr_electricity #restoration #amplifier
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I was employed as a commercial audio technician for several years.
There are many repair/restoration methods that I would love to help this guy with. Nevertheless, I give my admiration for his effort and willingness to expose himself to the scrutiny of the world of repair technicians. The honest truth: we can ALL learn something from every technician out there! 😊
Keep the comments coming. 👍
His dexterity manouvering that honking great soldering gun into tight spaces without melting everything in sight was impressive!! He's obviously done many of these rebuilds so knows what typically fails and measurements to expect. That allows rapid progress without going down false rabbit holes.
I'm glad I no longer need to do commercial repair work. I like to take my time and make everything pretty instead of hustling to get the maximum amount of work turned out in a day. Now I just build or repair for myself. So I take my time, thoroughly clean everything, bend all the leads perfectly, and solder everything so it's not just functional, but pretty. Everything looks and sounds the same on the outside, but everything looks really nice, better than new on the inside, and I know it. The electrons don't care, but I do.
Same man 😅
that is wonderful. i really am staring to appreciate this skill.... wishing i had it, but not sure where i would start. :) all the old things are made so well too!
Dzień dobry! Też lubię naprawiać stare audio i poprawiać wygląd wnętrza. Układać równo przewody i poprawiać fabryczne lutowanie. Koledzy mówią że sprzęt ma działać a nie wyglądać, ale to taka moja terapia. Z Bogiem!
@@chinmeysway Just go to a garage sale, or a junk market and pick up any old equipment that you like and take it apart, and learn. Or maybe you already have some defunct device stored somewhere in the basement and forgotten.
só um profissional capacitado para realizar esse tipo de serviço. Parabéns!!!
Thats not a genuine Crest Audio amplifier....
Genuine Crest Audio amplifiers are made in the USA, and they dont make a CA20 model....
Can clearly see by the internals, that its a chinese fake copy amp...
(ive worked on MANY genuine Crest Audio amps over the years, So know the internals very well)
- "Какие замеры ты делаешь ?"
- "Да от балды тестером везде тыкаю в разных режимах .. Зачем мне замеры ..."
Слушай, а зачем и чем он платы чистит ?
@@RigasRadioRupnica вэдэшкой, лол
@@RigasRadioRupnicaБензин
русские и тут успели......
Parabéns! Que restauração top! Dá gosto de ver! Excelente AMP.
jgf-у-меня-инфа как-открыть-порталчик-портал-с-помощью-сабов-наибольшее-нз-нз-нз-нз-нз-нз-🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗-jwjfj
Maravilhoso trabalho do começo ao fim!!!!!!!!!!
Mis respetos hermano por tu inteligencia y pasciencia! Dios te bendiga mucho te mando un abrazo desde Monterrey México departe de Fredy Amézquita!
Bạn này ở VN, thấy sài keo 502 với ổ căm LIOA, bạn làm rất chuyên nghiệp ngưỡng mộ bạn
Глобально и очень обстоятельно!!! Респект!!!
Te felicito por esa buena reparación, saludos cordiales,
México.
HI 👋🤠 guys; I have repaired electonic equipment since 1970, And Trust me, The Crest amp WILL give you about 1000
Is it a kapton tape between transistors and coolers? Washers should have very low thermal resistance, so kapton tape shouldn't be used here. Those old white/transparent washers were better than kapton. Even mica washers will be better.
one side seemed dead.... hmm maybe it was that one with the kapton
Muy buena la reparación quedo como nuevo mis respeto
A OUI BRAVO CE LA REPARASOIN SA PEIUE BIEN ICI ON CE DE BOURIY PAS ME ME SA PEUY PA BIEN MRCI
Currently own a Crest 90001. Wish l could have it restored like this. Jolly good job lad👍👍
Espectacular reparación! Felicidades!
this kind of repair can be done with analogy and digital tester,but it all depends on what wrong with the amplifier
this kind of repair can be done with analogy and digital tester,but it all depends on what wrong with the amplifier
this kind of repair can be done with analogy and digital tester,but it all depends on what wrong with the amplifier
did those caps you cleaned up leak?ive never seen caps with 4 prongs except on HVAC systems
Руководство по ремонту усилителей) разбираете с умным видом на составные части, тычете наугад тестером, паяльником, собираете соблюдая асмр и - профит, если не заработало значит вид был не слишком умным)
главное дело в покраске, если корпус не помыть в тазике и не покрасить - не заработает!
professional work, you are a genius
Парень, да ты весь усилитель по новой собрал! Молодец!
Усилитель был рабочий.
bütün parçalarını nerdeyse değiştirdin ya helal olsun tebrik ederim
Show que perfeiçăo esse deu ttabalho mais uma maquina de guerra a vida ❤❤❤❤❤❤
Самое главное стрелочный тестер купить. И любые ремонты по плечу :)
Удивило что завернули на место всё коррозионные винты которые стояли в усилителе до ремонта. А ведь это копеечные детали. Такая задумка? Или небрежность? Непонятно.
Great recovery ❤
Seriously??? Fixing electronics with a soldering gun??!
Not a lot of SMDs on this item, but yeah. More appropriate for roofing, gutters.
Kudos to all the engineers who designed this amplifier, this isn't lego!
Looks like fun - wish there was explanation about why and what is going on
Bạn làm rất gọn gàng và chính xác cao.
As a person whom restores vintge hi fi for a hobby, ive never in my life seen anyone test equipment so randomly. I strongly reccomend anyone watching this video or others like it NOT to tey this sort of repair. It is dangerous and those big capacitors if not disscharged can give you a nasty shock and then theres dealing with high voltage. And all those caps would have been worth replacing.
Great amps for running PA subwoofers.
I wish that there was some running commentary so we can understand the thought process especially on fault finding
If finish it will be unreliable in actual use.look at the solder,remember this a high power amplifier it operates at a high current high voltage even in just half power operation.
unprofessionally soldered
🇧🇩🇧🇩 Very nice 👍👍
aos 35:34 ...amigo você testou dois NTC diretamente na placa ,eles estão ligados em paralelo ?????? bom trabalho ,eu gostaria de ter seu tempo e sua paciência PARABENS !!!
Estão ligados em série
a eletrõnica é muito top.... principalmente o trabalho de quem as pratica .... parabéns
HI 👋🤠 ; I have noticed " Comments from almost EVERY COUNTRY in the WORLD 🌎🌍...It would be nice if the Host Server would provide" MULTILINGUAL " TRANSLATIONS. THAT way EVERYONE would understand the different"Ideas" and work TOGETHER 😎👍
hf-у-меня-инфа как-открыть-порталчик-портал-с-помощью-сабов-наибольшее-нз-нз-нз-нз-нз-нз-🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗-jwj
You Sir are a magician. I admire your work. I'm also a repair technician and this is a hard repair. You got to have good knowledge and skills to do this. Keep the great work, Cheers!
ржавые болты говорят про уровень ремонта. эти платы и так не особо крепкие а бу ключи с разных партий и заводов вовсе перечеркивают все вложения. емкость конденсаторов определили по заряду стрелки ну что тут добавить...
Very good repair, you must have some ingenuity to fix it
Que diluente você usou para limpar? Principalmente a base dos capacitores eletrolíticos? Saudações da Itália! Obrigado.
Thiner usou
Acetone? Refined oil? Which kind?@@elorejano57
Así quiero un técnico sercas de mi domicilio felicidades y de dónde es usted? Yo soy de Monterrey NL México . gracias por compartir
With the simplest means we repaired a functional device again, all respect for this good work.
When I consider the effort that goes into repairing electronic devices here in the country, I'm surprised that you're successful with this complex repair with this amplifier.
I used to work in a company that made stuff like this. The repair departments was simply full of girls who unsoldered every power semiconductor device and any others that looked burnt, and replaced everything. The transistors all went to a transistor tester and any that worked went back into the replacement parts bins. About 5% of the boards still didn't work. A tech on 3 times the girls salary got those. Any boards that werent fixed in ten mnutes were stripped of anything expensive and tossed.
This video is completely fake. From the first to the last frame, with the exception of painting. There is a whole class of fake videos about “restoration” on UA-cam, and this shit is persistently pushed onto my home page...
***This video is completely fake. From the first to the last frame, with the exception of painting. There is a whole class of fake videos about “restoration” on UA-cam, and this shit is persistently pushed onto my home page...
Of course, this video is completely fake. From the first to the last frame, with the exception of painting. There is a whole class of fake videos about “restoration” on UA-cam, and this shit is persistently pushed onto my home page...
@@user-nw9yx4xc4r Looks pretty much like repairing any big old class B tranny amp that I have ever repaired. And that would be a lot
СМОТРЮ МНОГО ПО ВОССТАНОВЛЕНИЮ В ЭТОМ ГАРАЖЕ, А ГДЕ БЕРЁТЕ ЗАПЧАСТИ?
Thats some knowledge 👍👍
I am memorised watching you work my friend.
belíssimo trabalho parabéns ❤❤❤
Perfeito ótimo trabalho
Us743❤
Amplificador profissional 😉
Único português
Hadir nyimak salam santun power nya mantap 👍
Saan po ang shop nyo ty
That paint gun seems to have to much air pressure and the drop size too small.
Please, would someone buy this guy a good Weller pencil-tip soldering station? That soldering gun is great for some things, but looks brutal on the smaller components and the circuit boards.
Professionnal temperature regulated welder for professionnal job
QUE MARAVILLA,¡ ES UNA DON¡¡¡¡
As always, very well done.
Very nice work. God old reliable stuff, even nearly noone uses these old Power amps anymore. New Speakers usually come with build in Class D amps unless it's really big PA Systems, and much of it is junk unless you have the money for the good stuff. Can't imagine breaking my back on carrying Stuff like this around anymore🙃
کارت خیلی زیبا و قشنگ بود
خوشم اومد
BONJOUR
VOUS ETES UN GRAND MAGICIEN
Great work sir.
Qué líquido o solvente utiliza para limpiar el circuito impreso
That is the 2nd largest Toroidal Transformer that I have ever seen. I haven't been this impressed since I stepped out of the shower dripping wet Thank you for the video.
Boa noite a todos fi cou zerada parabéns muito proficional
Thợ giỏi thế.👍
It certainly looks good.
❤🎉xelent work bro🎉🎉
One thing for sure, he is not a painter.
Change all the caps, not just the faulty ones.
Nice video, thanks :)
What is the liquid you put on the PCB to clean? Grate video by the way 🤩
Most of us that lean up PCB's just use Acetone. AKA, Nail Polish Remover.
brilliant restoration your skill is awesome and your detail work thanks mate for sharing well done
Biggest amp I ever got to mess with with a Hifonic's Colossus VII (Banned Edition) due to 2 Zues boards in it working as 1 amp, was asked to get one side working solo vs as the other side was shot to hell, and did!~
I like this work I'm in Chennai
I'm very interested in electronics work
Please give me the job and work
im watching and like ❤
Congratulations .. very good , excelent you work ..
Ремонт дороже усилителя. Моё почтение.
Gosto muito desses conteúdos sou técnico
我认为风扇前面的那些框架应该装有空气过滤器。就像薄泡沫空气过滤器一样。做得好。
The fans actually pull air from inside the unit out, so air filters would not do any good. 🤔🤘🏼✌🏼
It seemed like the fans would pull in air and pass air through those heat-sinks. Also those enclosures are clearly designed for air-filters. @@ronnieparfait
Saya tertarik sama power power nya..
Vai tumer video onek Valo lagi
Xem đã quá ad ơi ad làm nhiều ca nặng như vậy nhé
деловой такой...разбирает , неглядя а потом без схемы собирает ..что тут не чисто..
я буду звать тебя капитан-очевидность... а чем и как он "паяет", тебя не смутило? а тыканье "цешкой" в рандомные места, равно как и потрошение с последующей "пересборкой" (если это можно так назвать) плат опять же в рандомных местах? причем наш деловой герой все это делает на кортах и, конечно же, молча))) мля, естественно это махровый фейк! от первого до последнего кадра, за исключением разве что покраски.
на ютубе есть целый класс фейковых видосов про "реставрацию", и это говно упорно подсовывается мне на главную...
Hey bro nice 1 do u repair & sale
the audio is cool
Good good
You are the best enginering
turning on the amplifier without dismantling it and inspecting it first is an error which risks further damaging the device
In one word.......Excellent!
can you please tell me what liquid you use to clear the circuit?
4080 next video plz
А вообще не плохо,зная базу элементов электроники…как говорят «на глаз»
Super super super ❤❤❤❤❤
Beau travail
Mantap oom
Great video- CREST product just don't failed from American Made. But for China Made- CREST, they're out of business.
The late 1980, CREST- C20 was American Made. They never fail. They cost- arm and leg to owning sets. Daddy Junky Music was the place in late 1980 for local purchased CREST Products.
But later year, CREST made in China, not durable, not lasting- disappointed. That was why they out of business- perhaps Peavey Electronics bought CREST in the late 1999.
American companies- many of them Made Series Mistake with advance technologies shipped overseas for low cost productions and higher profits, but that destroyed Quality and Reliability.
"low cost productions and higher profits, but that destroyed Quality and Reliability.".....
Isnt that the case nowadays.... everything turned into shit post 2010....
Profits are worth more than reliability and quality.... time is money, so quicker in, quicker out, just bodge the repairs or build, ...... sad way of thinking, also, repair shops that "swap" good parts for broken/faulty parts, so you keep coming back and paying them.....
Thats why i learned to do my own repairs..... now i just repair for friends and family, give them a good deal, and most of all..... I AM HONEST..... 🙂❤️✔️
Waouh c'est ça j'aime ça
Nice job
Great work bro
Nice broo...
tôi muốn nhờ bạn làm giúp ,xin bạn địa chỉ.hihi
damn you replaced so much lol. normally when its broke. you only need to swap out 1 thing .. the elkos and transistors oke. but the rest crazy :p