Umm I don't think this was due to welding. This could be a coincidence that the crystal failed. Because the welding inverter is not referenced to the amplifier the amplifier never sees any of the voltage or current. All the current would be flowing through the chasis unless they somehow touched the handle of the welder to the audio outputs or other wires. That would have killed lot more than just the amplifier. So i highly believe that the oscillator failed as a coincidence. Most of the time the fail due to vibration. It could be like they were hammering near the amplifier on some panel and that caused internal damage to the crystal.
aleluia, bull's eye! everybody should read and understand your message, looks like there are so many people that have no idea about how fisics work and they just go for stupidity
Electric flows in circle. I stand behind what Kuntal says. Long as a proper grond location is next to what your welding. Say ground on head when removing broken exhaust manifold bolts and not say body. If you ground ro body then yes your correct. Lesson here is It's hard to fix stupid no matter what your welding
pull _all_ your batteries fully out of circuit before you weld on your vehicle, and the fuses from any 'external' audio equipment. don't just pull the negative off, remove both. and if you have any extra batteries, pull those out of the loop as well. you might get lucky, but chances are (more often than not) somethings going pop if you don't at least discon the batteries.
this is bull, there is no true reason to belive this, when you weld your car, you have open loop between the amp or 12v battery and the welding machine, so there is no current flow whatsoever between these 2.
I have successfully welded hu dreds if not thousands of exhausts and patches for rust repair. I cannot speak for amplifiers but I'm guessing that this will also apply to them. Depending on welder used the max voltage that is applied is under 25. The key is proper ground clamp placement. Always ground closest to what your welding and ensure it's connected properly. Voltage rises if amps drop from resistance.
I think your correct. Same. I think maybe some ground on chassis then weld exhaust or a body panel thus grounding this oem wires and or components If not sure what your doing do some more research and proceed cautionsly
Yes. The actual voltage for the arc is not a lot. But the arc itself produces a lot of electrical noise and those little spikes of energy can punch holes in circuits. It is odd that the amp failed this way though. Not entirely convinced it wasn't just a coincidence. The only other part of the puzzle not mentioned was that those little chip amps are floating ground so its possible that a spike of voltage on the speaker outputs followed through the board till it found real ground, the oscillator chip.
Back in the day me and my buddys had a bunch of mini trucks and lowriders, anyways my buddy welded in a C notch with a bridge for air ride and also successfully fried the PCM and BCM in his Toyota Tacoma 😂
Excellent work, how did you get your start with doing this as a career? I’m brainstorming side hustle ideas and I’d like to hear your story. This stuff has always been cool to me bc my oldest brother had a Ram 1500 with sub boxes instead of rear seats and that element is even present in my truck. 😂
I do see a few people here commenting that it couldn't possibly be related to welding but anyone with one of those dinky less than $100 hand held DSOs can take a look for themselves. Set up a dummy car rig, don't do this on a car that matters without ensuring everything is safe, hook up the DSO across the chassis at say the 'radio' and B- at the battery end and commence welding. Observe the display on the DSO. Repeat but hook across chassis at the radio and B+ at the battery end and repeat observations. The for kicks, hook across chassis and B+ at the 'radio' and repeat again. The disconnect the battery and do some more measurements. I'm sure you can work out what to hook the DSO up to by now. Then come back here and post about how you saw a nice flat respectable trace... or not. The cheapie DSO may not have the bandwidth to capture the fast transients but it should do enough to be convincing, one way or the other. PS, I already know how this stuff works, just attempting to educate others.
So back in the 90’s, my father and one of his friends (one was an electrician, one was a professional welder) told me, disconnect the battery when welding on the vehicle. I never could wrap my head around it, since the clamp and the wand (or stick, or whatever your style is) is just shorting out on the metal. But here we are 30 years later….
Nice repair. I have a question not amp repair related but aero port size. Will 3 inch aero port enough for DD 608 sub in 1 cu-ft net vol tuned to 35hz on rated power 600 RMS ? Don't want to use a slot port in case i need to change the tuning. Thanks.
Slot ports suck anyways, idk why everyone thinks they are louder. When you design a box and then throw it in a vehicle all that math and science goes right out the window and you have to retune anyways, aeroports are the way to go!
Muy buena reparacion aqui en MEXICO he comprado de esos circuitos integrados y no funcionan tengo en la salida de bocinas 18 , y 20 volts Dc , cambio el integrado bueno del canal 1y2 que se escucha al canal 3y4 se escucha tambien pongo el integrado nuevo y nada , no se donde comprar esos integrados de audio que si funcionen tengo ese problema con 3 amplificadores en los mismos canales 3 y 4 la marca es carbon audio de estos amplificadores saludos desde guadalajara MEXICO
id argue that disconnecting the battery but not any delicate electronics is worse. the battery acts like a nice brutish but slow capacitor. FWIW i weld on vehicles all the time, indeed im welding on my recovery truck this last week, with TDA chips in its bluetooth amplifier. and im not disconnecting a thing, IMHO this was a freak occurrence.
Years (in the 90's), I welded on my own truck and had no issues.. I'll go ahead and pull the batteries and amps soon as I'll be welding up door handles (shaving). Never had an issue back then, but it's never a bad idea to keep the system from damage...especially with what I've got now vs back then.
![Cody Johnson - I'm Gonna Love You (with Carrie Underwood) [Official Music Video]](http://i.ytimg.com/vi/yy9PuYMU29g/mqdefault.jpg)
Umm I don't think this was due to welding.
This could be a coincidence that the crystal failed.
Because the welding inverter is not referenced to the amplifier the amplifier never sees any of the voltage or current. All the current would be flowing through the chasis unless they somehow touched the handle of the welder to the audio outputs or other wires.
That would have killed lot more than just the amplifier.
So i highly believe that the oscillator failed as a coincidence. Most of the time the fail due to vibration. It could be like they were hammering near the amplifier on some panel and that caused internal damage to the crystal.
Iv never understood how unhooking batteries stops anything
aleluia, bull's eye! everybody should read and understand your message, looks like there are so many people that have no idea about how fisics work and they just go for stupidity
Electric flows in circle. I stand behind what Kuntal says. Long as a proper grond location is next to what your welding. Say ground on head when removing broken exhaust manifold bolts and not say body. If you ground ro body then yes your correct. Lesson here is It's hard to fix stupid no matter what your welding
Your are really a master of your craft sir, RESPECT!
pull _all_ your batteries fully out of circuit before you weld on your vehicle, and the fuses from any 'external' audio equipment. don't just pull the negative off, remove both. and if you have any extra batteries, pull those out of the loop as well.
you might get lucky, but chances are (more often than not) somethings going pop if you don't at least discon the batteries.
why? you have no idea how currents work in a circuit
this is bull, there is no true reason to belive this, when you weld your car, you have open loop between the amp or 12v battery and the welding machine, so there is no current flow whatsoever between these 2.
Great video….
…probabley several hours of work condensed into less than 3 minutes.
Legend status achieved
I have successfully welded hu dreds if not thousands of exhausts and patches for rust repair. I cannot speak for amplifiers but I'm guessing that this will also apply to them. Depending on welder used the max voltage that is applied is under 25. The key is proper ground clamp placement. Always ground closest to what your welding and ensure it's connected properly. Voltage rises if amps drop from resistance.
I think your correct. Same. I think maybe some ground on chassis then weld exhaust or a body panel thus grounding this oem wires and or components
If not sure what your doing do some more research and proceed cautionsly
Yes. The actual voltage for the arc is not a lot. But the arc itself produces a lot of electrical noise and those little spikes of energy can punch holes in circuits. It is odd that the amp failed this way though. Not entirely convinced it wasn't just a coincidence. The only other part of the puzzle not mentioned was that those little chip amps are floating ground so its possible that a spike of voltage on the speaker outputs followed through the board till it found real ground, the oscillator chip.
Back in the day me and my buddys had a bunch of mini trucks and lowriders, anyways my buddy welded in a C notch with a bridge for air ride and also successfully fried the PCM and BCM in his Toyota Tacoma 😂
Uhhhh... I might have gotten lucky. I welded today. With amps connected 🤣😂
Excellent work, how did you get your start with doing this as a career? I’m brainstorming side hustle ideas and I’d like to hear your story. This stuff has always been cool to me bc my oldest brother had a Ram 1500 with sub boxes instead of rear seats and that element is even present in my truck. 😂
Nice one, good work.
Skills.
Wow! A time when the crystal is actually bad!
Very cool
i was thanking that myself
thanks so much for the explanation! very educational :)
I think I'll just disconnect my amps if I have to weld.not gonna risk frying a $1500 sub amp lol
You liked my comment omgggggggggtgfgf🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹🥹
Everyone thank Sam for keeping the streets loud! 👏
I do see a few people here commenting that it couldn't possibly be related to welding but anyone with one of those dinky less than $100 hand held DSOs can take a look for themselves. Set up a dummy car rig, don't do this on a car that matters without ensuring everything is safe, hook up the DSO across the chassis at say the 'radio' and B- at the battery end and commence welding. Observe the display on the DSO. Repeat but hook across chassis at the radio and B+ at the battery end and repeat observations. The for kicks, hook across chassis and B+ at the 'radio' and repeat again. The disconnect the battery and do some more measurements. I'm sure you can work out what to hook the DSO up to by now.
Then come back here and post about how you saw a nice flat respectable trace... or not. The cheapie DSO may not have the bandwidth to capture the fast transients but it should do enough to be convincing, one way or the other.
PS, I already know how this stuff works, just attempting to educate others.
Good to know thanks Sam!❤
So back in the 90’s, my father and one of his friends (one was an electrician, one was a professional welder) told me, disconnect the battery when welding on the vehicle. I never could wrap my head around it, since the clamp and the wand (or stick, or whatever your style is) is just shorting out on the metal. But here we are 30 years later….
I wish you were in NYC
No one around here to fix Amplifiers
insane intellect creating amazing videos. loving the content dude!
Nice repair. I have a question not amp repair related but aero port size. Will 3 inch aero port
enough for DD 608 sub in 1 cu-ft net vol tuned to 35hz on rated power 600 RMS ? Don't want to use a slot port in case i need to change the tuning. Thanks.
yep should be fine!
👍
Slot ports suck anyways, idk why everyone thinks they are louder. When you design a box and then throw it in a vehicle all that math and science goes right out the window and you have to retune anyways, aeroports are the way to go!
Nice one Sam! Fit a lot into this short. Great work as always
This is why we love you mate
Noice diagnosis Dr!
thx can i send you my amp for repair im in usa cali
Ty jesteś kozak 👍
your so amazing!!
I got Abraham Lincoln
Thats bad ass dude!
Whats the song?
Mad genius
Damn!!!
Moist
Wizardry 😳
Muy buena reparacion aqui en MEXICO he comprado de esos circuitos integrados y no funcionan tengo en la salida de bocinas 18 , y 20 volts Dc , cambio el integrado bueno del canal 1y2 que se escucha al canal 3y4 se escucha tambien pongo el integrado nuevo y nada , no se donde comprar esos integrados de audio que si funcionen tengo ese problema con 3 amplificadores en los mismos canales 3 y 4 la marca es carbon audio de estos amplificadores saludos desde guadalajara MEXICO
Track ID pls 😀
Peekaboo - Bumpy Road
Omg first hiii
yoooo!
My dad watches all the time
I love your Vids
I always disconnect the battery when doing any welding, is this enough or should I disconnect the cables to the amp too?
id argue that disconnecting the battery but not any delicate electronics is worse. the battery acts like a nice brutish but slow capacitor. FWIW i weld on vehicles all the time, indeed im welding on my recovery truck this last week, with TDA chips in its bluetooth amplifier. and im not disconnecting a thing, IMHO this was a freak occurrence.
or.... they disconnected teh battery.
That wouldn’t of happen to a Class AB amplifier as it doesn’t utilize a sensitive crystal.
Years (in the 90's), I welded on my own truck and had no issues..
I'll go ahead and pull the batteries and amps soon as I'll be welding up door handles (shaving). Never had an issue back then, but it's never a bad idea to keep the system from damage...especially with what I've got now vs back then.