You were fortunate it was only the 5 volt regulator that went open circuit. I was expecting more problems. I see you put a reasonable amount of heat-sink compound on the MOSFET driver IC. Overall a very good restoration... WELL DONE!!! 10/10
Output power is tested with a watt meter either a stand alone or a combined SWR/RFpower meter with a dummy load on the antenna end. An antenna is needed when testing for SWR when the transceiver is keyed up. In any case not have an independence load connected to the output, can either damage or destroy the final output stage.
I love it!!! :) the way he check the voltage regulator with AVO meter, Paint the heat-sink, wash the plastic components and PCB with paint thinner and crank the *walkie-talkie* (VHF Marine) without antenna or dummy load.......... That is superb......... I love a pro job.....
He did a fine job troubleshooting, after the clean up locating the faulty voltage regulator where there was still no power. Since the power was present at the terminals the fault was further within. Not having an antenna or dummy load connected to the SO-239 connector, when he keyed the mic was a no no.
Tôi thích sự phục hồi này, tất nhiên video chỉ nhằm phục hồi thiết bị chứ không phải hiệu chuẩn, mục đích của video đã thành công, cảm ơn bạn rất nhiều.
I loved this restoration, of course the video has the purpose only in resusceing the equipment and not in calibration, the purpose of the video was successful, thank you very much.
Your job is well done but by grace use a real soldering iron, the one that is much too strong for cms component, you will all burn. In addition, you should never use an empty radio, you need a connected antenna, do not forget the SWR that can kill the components of your radio.
Don’t know how all this knowledge is with this man but Mr. E. Is truly amazing...How about a small television repair. Here we just throw them out and buy a new one, very wasteful. Thank you.
@@mikebauman7562 I'd have left the metal behind the thermal paste bare for better heat transfer, and also left bare the contact points on the frame where the board screws into the frame.
@@mikebauman7562 then check the video at 7:00. He PAINTED the metal housing and the heat dissipating fins with silver paint. CB radios can be really hot during use, thats why they have those big fins at the back.
@@du1987de Oh no, I'd leave the *paint* off where the the IC joins the heatsink and use thermal paste, just because the paint acts as a bit of insulation. Not much insulation, so it's not a big deal if the paint is there.
You can’t turn it on without an antenna, unless there is some kind of protection there, you can only check for an equivalent load of 50 ohms. There is an assembly at the exit, if it burns, it costs half the cost of this walkie-talkie.
Try not to press the PTT when where is no load (antenna) connected, even though it has a vswr resistant module on the output, icom's are notorious for burning output amps.
Very interesting, I among hundreds of other viewers didn't know that, thanks. Sounded good though, hope Mr E understands this. Enjoyed watching the video, but didn't have a clue what he was doing ;-) .
@@kenzpenz All transmitters (of any kind) require a 50Ω load on the output or you usually damage the output transistor. In this case it has an integrated module (it's a tiny ceramic board with a few transistors inside, it's on the back covered by a black plastic) which has higher resistance to burning compared to a simple transistor. However all that power get's consumed in heat form and usually burns even the module or drops it's performance. Most modern ones now have some protection like motorola's but it's more expensive. The bad thing is that those modules are also expensive and many of them hard to find these days.
This guy is unlikely to understand as English is not a language they all speak. Some will, but this person in this video doesn't appear so. Also by the lack of comments and quick replies to Vietnamese comments suggests this person is Vietnamese. I have been to Vietnam and very few speak English or understand very very little. Some kids may want to try some of their sentences on you but won't know how to respond when you reply.
he can't use it anyways, when he opened it up he violated any government issued certifications for use on a marine vessel or maritime frequencies. radio is useless in a practical sense now. Not even ham radio operators are allowed to work on non ham equipment that will be used in a non ham band
@@forevercomputing US FCC regulations. The only case where it would be legal for someone to work on a marine band radio such as this gentleman did, is if that person had a marine radio maintainer license.
@@gsaldana22 This guy is not in the US and US law doesn't apply to him. You'll have to find Vietnamese law on it and reference that. Your US laws and my laws don't apply here in any way,
Вот вообще как смотрю видео про эти реставрации электроники, будь то рация, радиоприемник, усилитель, телевизор, смартфон или вентилятор, везде происходит просто косметический ремонт корпуса и чистка от грязи или ржавчины и покраска из баллончика. И нигде не видел собственно ремонта электронной части. . Странно, что эти вещи попадаются всегда исправными. Или же неисправными- тогда их просто не включают. И да, рацию без антенны не включают. Что он там пытался поймать без антенны?
Я думаю что именно рация . Никогда не заработает после такого ремонта в принципе.... Филтра надо менять То что он помыл это все красота для глаз а не для схемы. Экран не распаял и не глянул что там творится... Да и многое так не моют.. только если поменять половину деталей теперь. и заново все настроить. А шипеть она могла и не исправной.
ta bueno el video pero tiene dos errores que puedo decirle que fueron peligrosos como técnico electrónico yo le habria puesto un pequeño disipador de temperatura al transistor de fuente de poder que reemplazó i el otro error jamas apretar el ptt sin al menos una carga fantasma por que podría quemar el modulo de salida
This man is a ''Primal Technology'' for electronics =D . Fixing stuff is the most ECO think what we can make, no electric cars or other corp. shit talking. Keep that what your doing cuz its amazing
Now those are the hands of a working man. Look how cracked and broken the skin is on his fingers and thumbs. It’s a wonder he can even do fine work like that with those poor beat up hands Great job
Probably let the magic smoke out of the PA. those things can be quite expensive. when one works on ANY 2 way device you need to have a dummy load attached to the radio. first to protect the PA "brick" and second to prevent any stray RF from being transmitted with out identification. It would be nice to explain what you washed the plastics in as well as what solvent you used for cleaning the circuit boards. Also an explanation as to what type of contamination was found (fresh water Lakes and rivers or Salt water) 35 years expeirience working with Commercial, Maritime and Aviation electronics. Seen it all, tried repairing amature mistakes sometimes with success other times not.
• How come he power supplies the unit before checking the fuse first? • What type of solvent is he using to clean the printed circuits with? • Voltage regulators cannot be completely checked like a transistor. They are ICs not single transistors. Besides he already knew that the unit didn’t work initially. Why did he not check the regulator beforehand? • He is testing the Transmitter without antenna or dummy load!!!! The RF hybrid output stage (big black brick in the front of the printed circuit: SC - 1302), usually burns out doing that (max Standing Waves Ratio), and then there is no repair worth the effort. • He tests with his finger for overheated components as the unit does not come alive after sampling. But didn’t he see before dissembling the the that the fuse was OK?. A melted semiconductor would be obvious with a broken fuse. Unless open circuit off cause.
never EVER key up a radio with out th proper antenna you'll blow the finals, also you can't properly test a radio with out an antenna, you don't know if it receives properly, also a radio does not work with out an antenna.
Oh my Godness!...as some have already said, testing a station without connecting the antenna is one of the biggest mockery that can be done. It is a clear example that there is NO IDEA of what is being done. And, THIS IS NOT A WALKIE TALKIE.
Good way to devalidate any government certifications to legally use that radio on a marine vessel.. non professionally trained and certified people are not allowed to repair radios like this, not even ham radio operators You should also never: 1 - Transmit without a dummy load or proper tunes antenna 2. Transmit without a proper license to do so. Antenna or not. In this case a ham radio license is not good enough to transmit on commercial or marine band frequencies either
Every time i watch these videos of you fixing these old appliances, i think of all the appliances I've thrown away over the years because they stopped working 🤦♂️💸!
A lot of corrosion with this radio, not surprising considering it is a ship's radio Also, it looks as though the main circuit board has carbon on it, as a result of something like a short circuit. Looks like that little piece was the problem.
how is it possible that after washing with the brush and who knows with what solvent liquid it has not been able to stand the medium frequencies! the printed circuit connectors are very delicate, he could have made dozens of errors, it seems so strange that that radio still works, more than anything tried in tx without antenna tuned on that specific band .... it seems to me all so unlikely since he has soldered again the female pl259 on the panel, looking carefully there could also be a short circuit between the central and the mass ... it all seems so unlikely !!
Az hagyján, de még le is festette a fém keretet és a bordákat. Vajon mennyi idő alatt fognak megsülni a tranzisztorok, mert nem tudja a keret a hőt megfelelően elvezetni?
No no coloco carga fantasma al radio para probarlo por lo tanto puede ser que le rompa el integrado de potencia final al radio Y los micrófonos no se limpian con alcohol isopropílico
Per provare un ricetrasmettitore oltre all'alimentazione, occorre connetere una antenna addatta; Altrimenti si rischia di danneggiare il trasmettitore e di non testare completamente l'apparato , in alternativa all'antenna si può utilzzare un carico adatto , detto carico artificiale!
sure that yes: To test a transceiver in addition to the power supply, you must connect a suitable antenna; Otherwise there is the risk of damaging the transmitter and not completely testing the apparatus, as an alternative to the antenna you can use a suitable load, called artificial load!
You were fortunate it was only the 5 volt regulator that went open circuit. I was expecting more problems. I see you put a reasonable amount of heat-sink compound on the MOSFET driver IC. Overall a very good restoration... WELL DONE!!! 10/10
You not conect an vhf antena and not test the output power, that maybe its wrong.... Its a bad idea press the talk butom with out an antena....
Output power is tested with a watt meter either a stand alone or a combined SWR/RFpower meter with a dummy load on the antenna end. An antenna is needed when testing for SWR when the transceiver is keyed up. In any case not have an independence load connected to the output, can either damage or destroy the final output stage.
@@TheTheo58 hi fu... tap the radio klik talk buton without antenna :D
noooo... transmitting without the antenna load 🤐
@@ubaldoregnani9382 نالاتتاافلااغغففغففففغغععغغغغغغغغفعهعففنالااللللللللللللللفققفققققفففغغغقلللببتللاازنقتتلاللااللللللللللللللللللللللللللللل
I love it!!! :) the way he check the voltage regulator with AVO meter, Paint the heat-sink, wash the plastic components and PCB with paint thinner and crank the *walkie-talkie* (VHF Marine) without antenna or dummy load.......... That is superb......... I love a pro job.....
He did a fine job troubleshooting, after the clean up locating the faulty voltage regulator where there was still no power. Since the power was present at the terminals the fault was further within. Not having an antenna or dummy load connected to the SO-239 connector, when he keyed the mic was a no no.
Tôi thích sự phục hồi này, tất nhiên video chỉ nhằm phục hồi thiết bị chứ không phải hiệu chuẩn, mục đích của video đã thành công, cảm ơn bạn rất nhiều.
Never use the transmitter without an antenna
Good work
Rip Final
I loved this restoration, of course the video has the purpose only in resusceing the equipment and not in calibration, the purpose of the video was successful, thank you very much.
Your job is well done but by grace use a real soldering iron, the one that is much too strong for cms component, you will all burn.
In addition, you should never use an empty radio, you need a connected antenna, do not forget the SWR that can kill the components of your radio.
Don’t know how all this knowledge is with this man but Mr. E. Is truly amazing...How about a small television repair. Here we just throw them out and buy a new one, very wasteful. Thank you.
I think that painting a dissipative surface is a bad idea, since it creates a layer that does not allow the transmission of heat
That was not paint, it was heat transfer goo.
@@mikebauman7562 I'd have left the metal behind the thermal paste bare for better heat transfer, and also left bare the contact points on the frame where the board screws into the frame.
@@soupwizard What is your reasoning for not using a thermal paste? You wouldn't leave a CPU chip in a PC bare, surefire way to fry the die.
@@mikebauman7562 then check the video at 7:00. He PAINTED the metal housing and the heat dissipating fins with silver paint. CB radios can be really hot during use, thats why they have those big fins at the back.
@@du1987de Oh no, I'd leave the *paint* off where the the IC joins the heatsink and use thermal paste, just because the paint acts as a bit of insulation. Not much insulation, so it's not a big deal if the paint is there.
Very good restoration 👍👍👍🔥👌🏽
You can’t turn it on without an antenna, unless there is some kind of protection there, you can only check for an equivalent load of 50 ohms. There is an assembly at the exit, if it burns, it costs half the cost of this walkie-talkie.
Jml
Good job
Красавчик как всегда👍👍👍👍👍👍👍👍🤝🤝🤝🤝🤝
Well a good job but don't transmit without an antenna. Or you will have to take it apart again to replace the power amplifier
dummy load and he should not be transmitting anyways.
@@Elfnetdesigns you are overcomplicating it
wow that desoldering tool looks great!
Try not to press the PTT when where is no load (antenna) connected, even though it has a vswr resistant module on the output, icom's are notorious for burning output amps.
Very interesting, I among hundreds of other viewers didn't know that, thanks. Sounded good though, hope Mr E understands this. Enjoyed watching the video, but didn't have a clue what he was doing ;-) .
@@kenzpenz All transmitters (of any kind) require a 50Ω load on the output or you usually damage the output transistor. In this case it has an integrated module (it's a tiny ceramic board with a few transistors inside, it's on the back covered by a black plastic) which has higher resistance to burning compared to a simple transistor. However all that power get's consumed in heat form and usually burns even the module or drops it's performance. Most modern ones now have some protection like motorola's but it's more expensive. The bad thing is that those modules are also expensive and many of them hard to find these days.
Ugh here we go again with the don’t press send without an antenna comments
молодец мастер лайк за работу
والله انك مبدع تحياتي لك من السعودية🇸🇦🤙🏻❤️
You need to stop keying up the transmitter without an antenna load installed. Otherwise you will be fixing this again!
This guy is unlikely to understand as English is not a language they all speak. Some will, but this person in this video doesn't appear so. Also by the lack of comments and quick replies to Vietnamese comments suggests this person is Vietnamese.
I have been to Vietnam and very few speak English or understand very very little. Some kids may want to try some of their sentences on you but won't know how to respond when you reply.
he can't use it anyways, when he opened it up he violated any government issued certifications for use on a marine vessel or maritime frequencies. radio is useless in a practical sense now. Not even ham radio operators are allowed to work on non ham equipment that will be used in a non ham band
@@Elfnetdesigns According to which country?
@@forevercomputing US FCC regulations. The only case where it would be legal for someone to work on a marine band radio such as this gentleman did, is if that person had a marine radio maintainer license.
@@gsaldana22 This guy is not in the US and US law doesn't apply to him.
You'll have to find Vietnamese law on it and reference that. Your US laws and my laws don't apply here in any way,
ÓTIMO SERVIÇO !! PARABÉNS !! (BRÉZIL BR) 👍👏👏👏👏
Appreciate your nicw try..
lindo trabalho parabens!!!
Buena restauracion, felicidades
Man, you are amazing, you can fix anything, great work :-)
You try transmitter with TX without antenna, it can cause damage to the final.
Вот вообще как смотрю видео про эти реставрации электроники, будь то рация, радиоприемник, усилитель, телевизор, смартфон или вентилятор, везде происходит просто косметический ремонт корпуса и чистка от грязи или ржавчины и покраска из баллончика. И нигде не видел собственно ремонта электронной части. . Странно, что эти вещи попадаются всегда исправными. Или же неисправными- тогда их просто не включают. И да, рацию без антенны не включают. Что он там пытался поймать без антенны?
Я думаю что именно рация . Никогда не заработает после такого ремонта в принципе.... Филтра надо менять То что он помыл это все красота для глаз а не для схемы. Экран не распаял и не глянул что там творится... Да и многое так не моют.. только если поменять половину деталей теперь. и заново все настроить. А шипеть она могла и не исправной.
i still have my cb look all most like this one good job on cleaning it you always do good work
It went so well until he keyed without an antenna connected... wonder what the SWR would have been 😂
Mr.Electricity --- ¡¡¡ NUNCA....!!! se debe poner en acción un radiotransmisor SIN ANTES CONECTAR LA ANTENA...
The Cockerel at 78 rpm always makes me chuckle.Mr E can turn his hand to anything.
Fantastic.
ta bueno el video pero tiene dos errores que puedo decirle que fueron peligrosos como técnico electrónico yo le habria puesto un pequeño disipador de temperatura al transistor de fuente de poder que reemplazó i el otro error jamas apretar el ptt sin al menos una carga fantasma por que podría quemar el modulo de salida
Apretar el PTT del micro sin una carga ficticia en antena es un barbaridad..
You need a 50 ohm dummy load on the antenna during the PTT or you will wipe out the finals. Your 5V reg needs a heat sink.
После нажатия на передачу без антенны выходной каскад сгорел.)))))))))
You need to use a dummy load behind an RF power meter.. Dont transmit without a 50 ohm load on it or you can ruin the final transistors.
This man is a ''Primal Technology'' for electronics =D . Fixing stuff is the most ECO think what we can make, no electric cars or other corp. shit talking. Keep that what your doing cuz its amazing
Very good
Сразу после подключения аккумулятора можно не смотреть, ТРЭШ!!!
I love this old technology restoration.
Old technology? That's an up to date marine VHF transceiver. If it was crystalized or had vacuum tubes, then I would concur.
great job
Top
tiene una bombilla de la pantalla fundida!
Wow, no ESD protection at all, transmitting without any antenna to open port... piece of ignorance in RF technology
I love "Washing first"
This is the modern way lol
It makes me cringe to see the screwdriver ride over like that
tres bon boulot mais attention appuyer sur le micro afin d'émettre ce n'est pas prudent sans l'antenne a cause du T.o.S
Now those are the hands of a working man. Look how cracked and broken the skin is on his fingers and thumbs. It’s a wonder he can even do fine work like that with those poor beat up hands
Great job
Acts like a kid... no experience at all with tranceivers
Such a shame
Agree!
Quedo chingon
Probably let the magic smoke out of the PA. those things can be quite expensive.
when one works on ANY 2 way device you need to have a dummy load attached to the radio. first to protect the PA "brick" and second to prevent any stray RF from being transmitted with out identification.
It would be nice to explain what you washed the plastics in as well as what solvent you used for cleaning the circuit boards. Also an explanation as to what type of contamination was found (fresh water Lakes and rivers or Salt water)
35 years expeirience working with Commercial, Maritime and Aviation electronics. Seen it all, tried repairing amature mistakes sometimes with success other times not.
Категорически нельзя нажимать тангенту на передачу, без подключенной антенны!
• How come he power supplies the unit before checking the fuse first?
• What type of solvent is he using to clean the printed circuits with?
• Voltage regulators cannot be completely checked like a transistor. They are ICs not single transistors. Besides he already knew that the unit didn’t work initially. Why did he not check the regulator beforehand?
• He is testing the Transmitter without antenna or dummy load!!!! The RF hybrid output stage (big black brick in the front of the printed circuit: SC - 1302), usually burns out doing that (max Standing Waves Ratio), and then there is no repair worth the effort.
• He tests with his finger for overheated components as the unit does not come alive after sampling. But didn’t he see before dissembling the the that the fuse was OK?. A melted semiconductor would be obvious with a broken fuse. Unless open circuit off cause.
Ugla APMMEsplanaden1111 I doubt how he could do that without antenna and how he could connect that part although it’s not the same old one
This guy is FEARLESS!!!!!!
i love radios
never EVER key up a radio with out th proper antenna you'll blow the finals, also you can't properly test a radio with out an antenna, you don't know if it receives properly, also a radio does not work with out an antenna.
I like your job and I follow your
vedio
what do you use to clean the board of the redio?
👍🏻👍🏻👍🏻👍🏻👍🏻
Chiếc icom đó chú có sài ko.nếu ko để lại cho cháu
con q lo limpias? con nafta¿ o algo especial?
Exelent
Do NOT send without an antenna or a dummy antenna, please.
I guess the aluminum frame works as antenna ....... isn't that?
Johan Janssens He was only keying it up for very short periods of time so it wouldn’t hurt it.
It transmission like that wont hurt the device. All I saw was a radio that made sound. I saw no evidence of transmitted RF or a received signal.
Smh 🤦🏻♂️ok already leave the dude alone ...like the 50th person to say the same damn thing
Oh my Godness!...as some have already said, testing a station without connecting the antenna is one of the biggest mockery that can be done. It is a clear example that there is NO IDEA of what is being done. And, THIS IS NOT A WALKIE TALKIE.
It's more of a Standie-Talkie
Its a CB radio for a truck. And yeah, he clearly dont know what he repairing... painting the heat dissipation area... those things can be really hot.
@@talos86 No. You are wrong. If you freeze the video at 0:02, you will see the "ICOM" brand, the "VHF MARINE" activity and the "IC-M45" model.
Good way to devalidate any government certifications to legally use that radio on a marine vessel.. non professionally trained and certified people are not allowed to repair radios like this, not even ham radio operators
You should also never:
1 - Transmit without a dummy load or proper tunes antenna
2. Transmit without a proper license to do so. Antenna or not. In this case a ham radio license is not good enough to transmit on commercial or marine band frequencies either
👍👍👍👍
Sütünü
Özüt
bác oi đấy là cái đàm qua taxi bác o đâu dấy a cho chấu cái đàm áy đuoc ko ạ
TX without dummy load....OMG
Did you find this 100mtrs down on the sea bed ??
Every time i watch these videos of you fixing these old appliances, i think of all the appliances I've thrown away over the years because they stopped working 🤦♂️💸!
Watching this video reminds me I have to clean my TV remote.
Bravo 👉❤🤝
Why key up without a antenna.....
Порадовал паяльник на жалах Т-12
مسبع الكارات انت فنان
A lot of corrosion with this radio, not surprising considering it is a ship's radio Also, it looks as though the main circuit board has carbon on it, as a result of something like a short circuit. Looks like that little piece was the problem.
👍👍👍🙂
PTT без антенны не нужно нажимать🙉
радиостанции без антены на передачу не проверяют , иначе выходному транзистору будет каюк......
Has it been buried in sand.
Is a maritime unit. Salt water does this specially to metal parts.
esto no es un walkie talkie ya que no es unequipo de mano,es un equipo base para uso nautico y ademas lo pulsa sin antena, cosa que esta muy mal!!!
Чтож у них у всех вещи землёй присыпаны, они их из могил что ли достают
Do not enter the discussion in Russian in an English forum. You will get no qualified answer
Houston we have a problem over.
👍👍👍👍👍👍👍👍🎁
Vous devriez aussi réparer votre multimètre 2 fiches bananes, c'est pas la mort pour vous.
anh có bán lại bộ này kg? thank
Never transmit without antenna. This cause damage to rf power circuit.
Mr paul Carlson please save this radio
no antenna you will not get a signal
This is marine vhf radio.
may you know, what kind of solder is used, why does it sound?
how is it possible that after washing with the brush and who knows with what solvent liquid it has not been able to stand the medium frequencies! the printed circuit connectors are very delicate, he could have made dozens of errors, it seems so strange that that radio still works, more than anything tried in tx without antenna tuned on that specific band .... it seems to me all so unlikely since he has soldered again the female pl259 on the panel, looking carefully there could also be a short circuit between the central and the mass ... it all seems so unlikely !!
you need a dunny load ti test it or a VHF antennas
How pr4oduct you use to wash de gadjet?
Antenna nélkűl nem szabad nyomkodni a ptt t mert kimegy a végfok!
Az hagyján, de még le is festette a fém keretet és a bordákat. Vajon mennyi idő alatt fognak megsülni a tranzisztorok, mert nem tudja a keret a hőt megfelelően elvezetni?
Are we suppose to speak Turkey in here?
Check the volume control, it is combined with the power switch, maybe there is no contact, fill in the vd-40.
No no coloco carga fantasma al radio para probarlo por lo tanto puede ser que le rompa el integrado de potencia final al radio Y los micrófonos no se limpian con alcohol isopropílico
конденсатор вздутый не заменил, тот черненький вроде elna, который возле выходной микросхемы
Шаролупик )))
Awwwww you nearly killed the radio without an antenna. This kills the PA. Good god... no
You should no longer press ptt without an antenna
What liquid to use to wash the plastics and what do you use to wash the electronic boards? 73 y DX LU1FK Marcelo
Per provare un ricetrasmettitore oltre all'alimentazione, occorre connetere una antenna addatta; Altrimenti si rischia di danneggiare il trasmettitore e di non testare completamente l'apparato , in alternativa all'antenna si può utilzzare un carico adatto , detto carico artificiale!
Are we suppose to speak Italian here?
sure that yes: To test a transceiver in addition to the power supply, you must connect a suitable antenna; Otherwise there is the risk of damaging the transmitter and not completely testing the apparatus, as an alternative to the antenna you can use a suitable load, called artificial load!