Neumann V402 Mic Pre
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- เผยแพร่เมื่อ 3 ก.ค. 2024
- While this video shows the repair of an expensive esoteric piece of studio equipment, the troubleshooting steps are common to any piece of electronic gear exhibiting similar symptoms.
#electronic #electronics #electronicrepair
The fitness is working Ray, you're looking buff. When you pushed on the capacitor, it felt your force and decided to start behaving itself! Super Dave, haha, that reminds me of that TV daredevil Super Dave Osborne. Welcome back Ray!
Hi Ray, I'm glad to see you again 🙂 at our age we have to expect some defects in the body - my neighbor said, I've been healthy all my life and I'll probably get sick when I'm old 😂 she was ninety-eight.
These defects of loose components (mainly THT) are unfortunately very common these days, in my opinion, the crap called "lead-free tin" in connection with the so-called solder bath is to blame, the connection does not heat up well and it degrades faster. Another problem is the iron-plated terminals of the components (I used to store the cut terminals of the components in a box and use them for jumpers, today I first pass them through a magnet, throw away the metal ones and save what is left) it has happened to me many times that the coating has separated from the terminal and only a blackened piece of metal remained. The development of technology does not wish us well, printed resistors including paths, capacity and inductance created directly by paths between PCB layers 🤪 and mainly the number of older parts starts to decrease, production ends and sometimes it is not easy to find a replacement.
I wish you that your health problems subside and you can fully enjoy life again 🙂 Tom
Thanks Tom!
Yeah, lead free solder for anything but SMD is not something I'm fond of. But it's here to stay.
Love your 98 neighbor's comments!
Glad to see you back Ray. I was hurtin for another Luxman video but I'll take what I can get, good job.
Hurtin' for a Luman video? I'm hurtin' from that Luxman!
I will get back to it. It's giving me headaches, but it wouldn't be any fun if it didn't
Nice to hear from you, Trevor!
Nicely done, good procedure and probably helpful for a lot of people to see how it's done.
Me, I tend to be a little bit paranoid when solder starts breaking down. I would re-solder both of the big caps and also check the same spot on the other board. Most of the time it's okay but it never hurts to check.
Good to see you back at the bench.
Yep, its good to have Ray back! Additional thoughts to Douglas's comments... I would also add proper capacitor caulk, to support the caps. Especially, if the device is mounted in a Anvil case/portable. For those new to electronic repair... This type of caulk has certain qualities that are not in off-the-shelf household caulk. Treat your gear with love and kindness and buy the good stuff.
Definitely the better approach. I didn't bother because it's going back into a rack in Dave's studio. If it was something that was going into a touring or other type of sound reinforcement application where it would be subject to shock I would have not only done that, but put some RTV around the caps too.
I did finger them (no comments, guys!) and they seemed fine.
@@raygianelli3612
_"I did finger them (no comments, guys!) and they seemed fine."_
B.. Bu.. But ... Ray ... There's so much fertile ground there... LOL.
nice to see you back ray and besides the cataracts you are in very good shape brother keep it up
Thanks Wilfredo. From the neck down I'm in perfect health. But from the neck up, it's a dumpster fire; I've got dental troubles, mental troubles, vision troubles, hearing troubles and sinus troubles. Still got hair, though! 😁
Nothing wrong with a easy diag and repair. I had cataract surgery last year, first time since 3rd grade I can see distance without glasses. Still need readers, as I elected to not get the fancy(and not perfected) lenses . Like you said it was a 15 minute procedure, and back home in an hour. I developed cataracts after having a torn retina, that was a miserable experience. They suck the fluid out of the eye, and fill with a gas so the retina heals. The gas causes the cataract to form after a few months. Good luck with your procedure!
I'll know more after seeing the opthamologist. They might tell me that at my age I'll be dead before they cause a problem. 😝
Nice repair !
Thanks Roro. This is nothing new for any experienced tech, but I did want to show that even expensive exotic gear can be repaired with the same techniques as any more pedestrian stuff can.
Howdy Ray ! happy new year !...cheers.
Andy! Good to hear from you, buddy.
nice to see you back chief
Thanks Joseph, nice to be back!
Best of luck with the eye surgery!
I know about getting away from the bench. A guy needs to get out and take care of things every now and then.
Would you consider doing some content on the Sound Technology tape alignment and analysis equipment?
I rarely work on tape decks, and have no experience with the Sound Technology tape test equipment. If that changes, you'll see it here!
Sorry Ray I was mistaken. I love the channel. @@raygianelli3612