UPDATE: CLEAN AMP PORTS WITH DEOXIT CLEANER TO FIX AUDIO DROP OUT. DISCHARGE THE CAPACITORS BEFORE WORKING ON THE AMP BECAUSE THEY HOLD A CHARGE EVEN THOUGH THE AMP IS UNPLUGGED, SUBSCRIBE AND LIKE FOR MORE VIDEOS LIKE THIS.
hi, ihave valvestate 8080. when the amplifier is not used for a few days., it starts okey..., but when i re start i get a loud hum sound. without volume and no plug in guitar guitar cable. so,i need to unplugg and wait the next day.... :( i already clean the pots with contact cleaner, but nothing happened.
Great I have an old Solid State amp someone gave me & I've not yet ventured into it to see if i can fix it. I hope it's as simple as yours that's a nice rig for your son I've played those Epi LP special II 's really good like a LP Junior basically.Then the Marshall He's got the Strap. Haha my Dad showed me how to clean the pots on my Guitar spraying TV Tuner cleaner i.e. Electronic Contact Cleaner now.
what about hum or buzzing coming from the amplifier? could that be EMI?I have 3 amps that are having that problem. I did not have that problem before?Thank you.Your son rocks! wish I could play like him I am just a beginner.
The potentiometers require lubrication. You'll need to lubricate them with DeoxIT F5 after you've sprayed them out with your choice of electronics cleaner. Do not use WD-40. If the grease was flushed out you'll feel that rough turning action. You'll want to keep them internally greased to also help prevent corrosion.
Way to go teaching kids how to play and repair things. My son is almost 16 now and I have tried my best to do the same with him teaching him how to repair engines and electronics. He plays guitar also and his amp has developed a light humming sound when turned on. So thank you for this video and we are gonna look for the problem this week. !!
I recently bought a Crate GT212 120 watt beast that has what I believe is a grounding issue (after watching this extremely helpful video) and some pots to clean. The amp has tons potential and I plan to fix it! It was great to see a father-son tech team. My father used to let me climb on to the bumper of his vehicles at the age of 4 too see him working on them and do regular maintenance. Your son will appreciate this video more as he gets older. Wish you both the very best!🌎
This may never be seen because the post was years ago, but I just wanted to say thank you. I've been trying to figure out what's wrong with my amp for awhile now, thought I tried everything simple, but apparently not the ground wire connection. So thank you for saving my mental health by making this video.. lol
Everyone is giving this guy all these props when in reality like all smart dads he is just using his son for free labor and easy clicks. I'm on to you pal 😊 (thanks for the tips)
He's also dooming his kid by getting him accustomed to decent gear. My old man gave me a cigar box, a broom handle, and said good luck. Those 13 years riding the rails with ol boxie taught me everything I needed to know about playing the blues. Kids today have it too easy. (My memory is fuzzy it might have been a Yamaha Pacifica HSS but the point is the same probably)
As this clip started I almost had heart failure - attacking nuts with long nose pliers At that point my old shop teacher would have thrown anything with sufficient mass at the perpetrators head But the rest was quite informative ~ Thank you
I had to look away. People that careless should be forced to wear some kind of identifying sign to warn potential employers, customers and spouses. I'm talking about the dad, not the kid.
Thanks for posting this, amazingly I had the same amp as your demonstration. I had a humming sound that went away after cleaning the volume and reseating the solder, I was thinking I would have to replace a capacitor. Your son played great by the way!
Your son is adorable! The kids nowaday on that age mostly spend so much time seating on the computer & playing game. I bought my son an electric guitar & until now he hasn't touch it. When he was 5 or 6 year old he used to seat beside me & strumming my guitar. Your son at that age, if he will continue playing, he will be a good guitarist. Congrats buddy! By the way thanks for sharing how to fix a guitar amp audio noise.
VERY helpful, thank you so much for the help. Seven years ago huh? I bet your son is a guitar legend by now! ;) Thanks so much for posting, I'm gonna reference this while trying to repair my own amp!!
I have a Dean Markley K100B. I purchased new in 1993, the signal seems like it's starting to need time to warm up before it will actually play consistently. I've sprayed dialectic spray were I can. I've played different guitars thru it so its not the guitar. Any Idea's? Does solid state need time to warm up ? It plays well after about 15 minutes of warm up. Let me know. Thanks.
Way to go buddy... love the video! Great that you include your son. Did the same with my two boys (now 35 and 29). One of my son's now can fix just about anything. He's also the FOH at my church :-) Love the video
Thanks for the video. Just wanna ask my guitar amp is noisy when lead is plug in but if you unplug is quiet. Should I troubleshoot the power supply board or just the amp board.
Hi, first let me say that you're a great dad for including your kids on your projects. Now, I have a Line 6 Lowdown Bass amp. everything seems to work fine, except the volume is so low that you can barely hear it. I'm doing some research to open it and see what's going on, and you video just encouraged me to do it. Any advice on what to look for on this case? Thank you so much, and congrats for your channel.
i'm glad dads like you exist. cause I've rarely seen a young person even interested in rock music, much less playing guitars. Its all about the DJ's and electronic music and autotune. A lot of kids underestimate how hard it is to actually make music because its so easy on a computer. Most music these days are made with the eyes and looking at the positions of notes, rather than what it sounds like
As someone who does both it's kinda funny to hear someone say this. I find it much easier to pick up a guitar to play some notes and figure out melodies. But when I want to produce something I gotta pick a voice, or waveform, set the right dB, think about compression, and what other effects I'm gonna use, and do all the percussion, etc., Ad nauseum. So in the great words of Jesse Jackson "We know that music is music, all of our people got a soul, our experience determines the texture, the taste and the sound of our souls" It's all relative I guess.
I have two solid state amps. A Randall RX120 head that has audio dropouts and a Crate Flexwave head that doesn't even turn on anymore. This video might just be a lifesaver!
I didn't hear you talk about the caps but worth mentioning to your son. A quick check to see if the caps had residual voltage on them is always worth doing.
Thx for the video, I have an 80’s Peavey Musician MK iii 400 Series and it won’t power on, the fuse keeps blowing, I may have plugged into my cab with a different ohm rating. Any ideas? Thx
Great Video! I have a question, my old amp is losing volume after a while playing. It still works but the volume goes down very noticeable. Any hints? Thanks!
Hi. I have a beautiful looking tweed SS amp, 35 Watts and 10" speaker. I've had it from new. I always thought it sounded warm but over time I've had to increasingly cut the bass and mid to almost off and boost the high to max. Even then it sounds very muddy. I only use clean channel but issue is apparent on drive channel also. Is there a particular component I should be looking at to address this? I am an electronics engineer. The amp in question is demoed by a popular TH-cam guitarist and sounds much brighter so I'm pretty sure mine is "faulty". Cheers
What about a ringing sound that is tied in with how much gain you apply. I’ve got a Yamaha thr30ii that creates a phone like ringing noise when I turn up the gain. Ty
Very good tips. I fixed my Kustom bass combo easily. Speaker wiring (factory connections) were loose. I soldered all connections of wires and crackling noise is gone now. 👍🏼
Hey! Great video. Quick question. Just got a Line 6 Spider III today and no matter how far I turn the Master volume or Channel volume up the volume is barely there. Any suggestions? I could really use the help. Thank you!
My friend is having an issue with his Fender Rumble 100v3. He says the amp turns on, makes a crackling sound and then shuts off. Do you know if its possibly the power section of the amp? I'm not sure if it's the power supply.
Nice job on this video T.T. , I have a old Crate with audio drop out . I'm a service tech and I'm pretty inclined electrically I just never got around to doing it but I will first thing tomorrow morning. Thanks to your video pro-tips . Thx brother
So I have Marshall V8040 apart. Same burn marks at resistors as you. Test on them says both reading 69 ohms but I havent snipped wire like you. Is the read on both 69 because one is loose off pc board?
Great video and very informative thank you very much! how about did you learn about this? I'm interested in music technology and I'd like to learn about it but I don't no where to start. apart from youtube videos
Thanks, I'll check this stuff. I'm tired of banging my amp on the top. At gigs folks just think I have anger issues. Also, it makes me mad your kid is already better than I am. He just kills it with that Gypsy jam thing he does!
My guitar amp has two independent channels. One channel hums, with a rotating sound, and the other plays just fine. It is old. I picked it up for $300 bucks at an antique store. Will this procedure cure that problem? It turns on fine, but one circuit, powered by the same chord does not receive my signal. AJM
Appreciate the helpful video's. I'm hoping for a little help. I have a randall rg100 G3 plus. It is a valve/ss. The distortion channel works fine. But the clean channel not so much. It will light up when I switch channels but none of the knobs, other than master volume will work. I don't know why?
While i was playing PEAVEY VYPYR 30, All the lights flickered and one of the light wasn't. After shutting it off, the tone changed. the red channel i.e high gain seems to have less distortion. Any idea what seems to be the problem ?
I have a line 6 Flextone 2 that worked perfectly but one day I plugged in my guitar and the volume is a whisper. I can’t get schematics from line 6 so that’s no help. I’m a combat disabled vet and I just do t have money for a new/used or repair costs any ideas? I checked the common issues; burnt fuse: no, obvious shorts: no, loose disconnected wires/connections: no! Thanks I hope I can figure this out
i got a marshall ms-2 its a small battery amp. and for some reason the amp will not start up. i seen that the battery was leaking that acid and i cleaned it up.
Capacitors don’t always bubble when they fail. It’s just as common for the rubber seal at the bottom to break down which causes the electrolyte to leak out the bottom.
Adding to previous I own a Peavey pa which buzzes to let me know power is going on but just isn't working..ie doesn't light up etc any ideas on this please.. I run an open mic where I help people get stage experience and charity gigs ..and it's my spare pa used for these gigs ..ty
Thanks for this vid. You put more into a short vid than any of the others. I have an Ampeg that was dropping sound. After watching the vid, I hammered it with my fist on top. Working again. lol. Such a rock n roll fix. Guess I might have a connection issue to look at though. Your son rocks; mine just getting started. subbed.
I just bought a kustom quad 100 dfx from a pawn shop and when i turn on the volume cuts in and out at first but after like 3 min it plays but then cut back out again any idea what it would be and how much it should cost to fix
I have a SUPRO 1650RT and everything works EXCEPT no gain and the RECTIFIER TUBE is not lit up at all, stone cold. Checked it with 2 different new rectifier tubes and tube is still a No Go - could the rectifier section have its own fuse?? any thoughts. PLEASE HELP - Very frustrated because everything else works.Thanks.
I bought a used roland street cube from guitar center. It arrived with no power cord so no idea if it would work if i had a power cord but i tried couple different sets of new batteries and amp does not power up. I only paid $89 for the amp and usually they are more $ so if i can somehow troubleshoot why it doesnt power up and repair it would be awsome. I have 45 days to return it otherwise. Any ideas what to check or try?
hello Tampatec, I have the exact same amp with the exact same resistor problem I was wondering if it would be alright if I replaced the resistors with the same 68ohms resistance but with 5w ceramic version instead of 3w?
I have a bugera v22 ,I have had for a couple months now ,and when playing bassy stuff the bass gets woofy and flubby ,I changed the tubes and put in a good celestion. any ideas ??
Thank you so much! What are the chances? This is the exact model amp I'm trying to fix. Helped me tremendously, thanks again. Edit: omg your son played Hypnotize by System of a down at the end hahaha this is the best video I've ever clicked on
The problem of most transistor guitar combo is the big panel inside. Instead of using separated small panels for the separated function (panel for the poweramp section, panel for a power supply section, panel for clean, panel for drive chanel), they solder everything in one panel. It is cheaper of course but way more fragile due to that if the amp loud enough, the big panel will resonate with bigger amplitude and this resonation breaks the soldering. Furthermore this breaks are tiny, almost invisible but blocks the signal. Or cases cracking sound. If they use separated panels for functions it could make the amplifier to modular like a PC what is the main reason of their popularity. Just imagine, if you like the clean channel but hate the drive channel, you can easily fix that without buying another amp.
Modular "amps" exist, they just cost a lot more (time, learning curve and money) than most people are willing to pay for. Any professional sound tech will use a gain structure with many different parts: pre-amps, saturators, exciters, DSP, power amps, x-over etc... However, the idea that a larger board will resonate more isn't really true. The heavier the panel, the less it will resonate at the end of the day (resistance to acceleration and harmonic dampening, all that fun physics stuff). The wires between panels on those hand wired amps fail way more often than most modern PCBs.
the bigger the panel the longer the wavelength and the bigger the amplitude can formed due to the less resonance attenuation. More small panel means more fixing point. The bigger amplitude what cases breaks in soldering. My experience shows that big panels always break soldering somewhere in time. The solution would be easy. they should fix the panel at more point. but it is unfortunately rare.
Hi there! help me fix my guitar amp.The sound pop up and the led display on the effects turned off/on whenever i strum hard on my guitar. But it works properly in normal condition. Hope yiu can help me. Thanks
I have a Vox Beatle amp and when I turn it on there is just a loud hum. I took the guts out and noticed one of the ceramic resistors in the power section is hot to the touch. Could this mean the power transistors are bad? I did a visual scan and found no burned parts. I think the power section is bad because there is no interplay with the preamp at all just a loud hum. What do you think and where should I look? Thank you, Charles
Hypnotize! Brilliant. I have a Laney HCM60R that I got second hand, the "crunch factor" (basically overdrive mode) doesn't work, its super quiet and crackles in and out. Bad solder maybe? Ill try have a look, thanks for this video.
I have the exact same amp. I gave it to my niece and she's been having drop out issues with it. I will follow your steps to see if that resolves the issues - thanks!
I realize that this repair video is already 5yrs old but I'm having an odd audio issue with my Marshall Valvestate VS100 Head.. Everything works as it should and the amp sounds great, but when I stop playing there's this "sizzling sound" that occurs as the amps audio is at the end of "ringing out".. This VS100 was built in 1998 & I bought it used from the 2nd owner who knew the original owner personally.. He told me that the 1st owner played in a Death Metal Band so I can just imagine that this VS100 has probably has spent most of it's life cranked to 10 which could possibly have overdriven a chip or a cap or something.. I've already replaced the tube & the weird sizzling sound is still there so now I'm just trying to figure out where it's coming from or rather what's causing it???..
What about a bad diode? What would that cause? My amp has power, buzz through speakers but no audio when trying to play.. This was after soldering a capacitor back on to board that had fallen off due to bad solder joint..
i have an audio interface tascam us-366. the volume knob is scratchy and i spray contact cleaner on it. but after that, the sound is too slow even at maximum level. why is this happen?
Hello Mr Tampatec! Thanks for your nice video. I was facing some problem with my own amp, which is a similar model. (Valvestate VS 65R) Two capacitors were changed, along with a 12ax7 tube and I was pretty sure the problem was solved. (Nothing wrong with the tube, except it is old. So I replaced it with a Russian electro harmonix, cause I was searching for a better sound for my amp. By the way if you have any tube suggestion to make, please do…) I finally assembled my VS 65, but now there is an audible buzz while it is on... It is a bassy sound like note, not a hiss. It is not that loud, but the amp is not so silent any more. If I unplug the jack from the amp's input, it is quite silent, even if I put the volume knob at high levels. I hope I'm not bothering you, so I'm asking: Is this sound possibly coming from the new pair of capacitors that I've changed? The specs of the old ones were 50V 2200μF and 85 o C, while the new ones are of bigger diameter and a different heat tolerance, which is now 105 o C. They also have the OX and 4(2) marks on them, which I don't know what it's about. I also noticed, that the old pair of caps was steadily fixed on the PCB with some thermo-glue, which I didn’t put while I was replacing them. Does it have any particular role in this case? I would appreciate if you could enlighten me a bit. Kind regards John
This is a common symptom of 60 Hz (or 50 Hz) hum. The connection to ground could have been inadvertently affected. Note that there are only a handful of manufacturers of tubes, and they all provide very similar quality tubes. The resale companies simply provide QC.
I have the same amp and will try this but one thing I need is the on off switch which is busted ..but one knob causes a static noise which I hope the spray will fix Ty..
I posted a moth ago asking about my volume only going up to a whisper. I checked for cracks,loose wires and nothing! So what do you think it is?? I also do all the work with my 11 year old he showed me your channel.
Great video!!! I just bought a cheap 20W amp and it doesn’t sound right at all. Going to opening it up this evening and use your video as a rough reference
UPDATE: CLEAN AMP PORTS WITH DEOXIT CLEANER TO FIX AUDIO DROP OUT. DISCHARGE THE CAPACITORS BEFORE WORKING ON THE AMP BECAUSE THEY HOLD A CHARGE EVEN THOUGH THE AMP IS UNPLUGGED, SUBSCRIBE AND LIKE FOR MORE VIDEOS LIKE THIS.
hi, ihave valvestate 8080.
when the amplifier is not used for a few days., it starts okey..., but when i re start i get a loud hum sound. without volume and no plug in guitar guitar cable.
so,i need to unplugg and wait the next day.... :( i already clean the pots with contact cleaner, but nothing happened.
Great I have an old Solid State amp someone gave me & I've not yet ventured into it to see if i can fix it.
I hope it's as simple as yours that's a nice rig for your son I've played those Epi LP special II 's really good like a LP Junior basically.Then the Marshall He's got the Strap. Haha my Dad showed me how to clean the pots on my Guitar spraying TV Tuner cleaner i.e. Electronic Contact Cleaner now.
What's the best way to discharge the capacitors?
what about hum or buzzing coming from the amplifier? could that be EMI?I have 3 amps that are having that problem. I did not have that problem before?Thank you.Your son rocks! wish I could play like him I am just a beginner.
The potentiometers require lubrication. You'll need to lubricate them with DeoxIT F5 after you've sprayed them out with your choice of electronics cleaner. Do not use WD-40. If the grease was flushed out you'll feel that rough turning action. You'll want to keep them internally greased to also help prevent corrosion.
Father/Son moment...priceless! Oh, it was an amp vid? This boy will never forget this moment.
AGREE
Вы прямо правильно подметили в чем задумка видео
@@gfn.ildar33 Спасибо.
Way to go teaching kids how to play and repair things. My son is almost 16 now and I have tried my best to do the same with him teaching him how to repair engines and electronics. He plays guitar also and his amp has developed a light humming sound when turned on. So thank you for this video and we are gonna look for the problem this week. !!
The humming could also be gunk on the strings, a grounding issue, electrical or radio interference, or another mystery cause
You family is very lucky to have such a kind man as yourself in there lives. Many blessing to you all and happy 2017
AGREE
I thought the same thing!
Awesome Dad
I recently bought a Crate GT212 120 watt beast that has what I believe is a grounding issue (after watching this extremely helpful video) and some pots to clean. The amp has tons potential and I plan to fix it! It was great to see a father-son tech team. My father used to let me climb on to the bumper of his vehicles at the age of 4 too see him working on them and do regular maintenance. Your son will appreciate this video more as he gets older. Wish you both the very best!🌎
This is a great video, and you're a great dad! I hope you two still get to spend time like this.
This may never be seen because the post was years ago, but I just wanted to say thank you. I've been trying to figure out what's wrong with my amp for awhile now, thought I tried everything simple, but apparently not the ground wire connection. So thank you for saving my mental health by making this video.. lol
Love the way your kid plays system of a down at end. Great video has definitely helped me out that's man.
Love your patience with your child and having him help you out. Way to go !
Everyone is giving this guy all these props when in reality like all smart dads he is just using his son for free labor and easy clicks. I'm on to you pal 😊 (thanks for the tips)
He's also dooming his kid by getting him accustomed to decent gear. My old man gave me a cigar box, a broom handle, and said good luck. Those 13 years riding the rails with ol boxie taught me everything I needed to know about playing the blues. Kids today have it too easy. (My memory is fuzzy it might have been a Yamaha Pacifica HSS but the point is the same probably)
As this clip started I almost had heart failure - attacking nuts with long nose pliers
At that point my old shop teacher would have thrown anything with sufficient mass at the perpetrators head
But the rest was quite informative ~ Thank you
what a butcher
Yeah 😂
I had to look away. People that careless should be forced to wear some kind of identifying sign to warn potential employers, customers and spouses. I'm talking about the dad, not the kid.
I noticed that too.... but I thought what the heck... he was fixing his own amplifier...
AND - he cuts the lead on R63 to test the resistor "out of circuit" but then solders the leads back together J-hooking them? WOW!
Showing your kids how to do things -one of most important things in life. Don't forget swimming. Love you and don't even know you.
Thanks for posting this, amazingly I had the same amp as your demonstration. I had a humming sound that went away after cleaning the volume and reseating the solder, I was thinking I would have to replace a capacitor. Your son played great by the way!
thanks, good info
Your kid got some talent playing flawless system of a down in an emotional way and not robotic
So awesome your son is learning how to play and work on these amps too...way to go! Fantastic!!!
Your son is adorable! The kids nowaday on that age mostly spend so much time seating on the computer & playing game. I bought my son an electric guitar & until now he hasn't touch it. When he was 5 or 6 year old he used to seat beside me & strumming my guitar. Your son at that age, if he will continue playing, he will be a good guitarist. Congrats buddy! By the way thanks for sharing how to fix a guitar amp audio noise.
Thanks
thank you so much! also excellent parenting including your child in the repair!!!!!!! we need more dads like you!
System of a Down Hypnotize!! What a cool kid
Thank you so much. I'll set out to fix my amp now but what a lovely moment between you two. Great parenting.
First try Deoxit in the amp ports.
Your a great dad. Your a good Technician as well. Thank you for sharing this video 🙏
Trying to fix my 40 year old Peavey KB 300 and ran across your video. Nice System of a Down at the end as well. Hope your son is still playing!
ur little man was playing system of a down on guitar.RESPECT!
I literally repaired my "broken" amp thanks to this video, many thanks!
VERY helpful, thank you so much for the help. Seven years ago huh? I bet your son is a guitar legend by now! ;) Thanks so much for posting, I'm gonna reference this while trying to repair my own amp!!
I have a Dean Markley K100B. I purchased new in 1993, the signal seems like it's starting to need time to warm up before it will actually play consistently. I've sprayed dialectic spray were I can. I've played different guitars thru it so its not the guitar. Any Idea's? Does solid state need time to warm up ? It plays well after about 15 minutes of warm up. Let me know. Thanks.
Way to go buddy... love the video! Great that you include your son. Did the same with my two boys (now 35 and 29). One of my son's now can fix just about anything. He's also the FOH at my church :-) Love the video
Thanks for the video. Just wanna ask my guitar amp is noisy when lead is plug in but if you unplug is quiet. Should I troubleshoot the power supply board or just the amp board.
Hi, first let me say that you're a great dad for including your kids on your projects.
Now, I have a Line 6 Lowdown Bass amp. everything seems to work fine, except the volume is so low that you can barely hear it.
I'm doing some research to open it and see what's going on, and you video just encouraged me to do it.
Any advice on what to look for on this case? Thank you so much, and congrats for your channel.
i'm glad dads like you exist. cause I've rarely seen a young person even interested in rock music, much less playing guitars. Its all about the DJ's and electronic music and autotune. A lot of kids underestimate how hard it is to actually make music because its so easy on a computer. Most music these days are made with the eyes and looking at the positions of notes, rather than what it sounds like
As someone who does both it's kinda funny to hear someone say this.
I find it much easier to pick up a guitar to play some notes and figure out melodies. But when I want to produce something I gotta pick a voice, or waveform, set the right dB, think about compression, and what other effects I'm gonna use, and do all the percussion, etc., Ad nauseum.
So in the great words of Jesse Jackson
"We know that music is music, all of our people got a soul, our experience determines the texture, the taste and the sound of our souls"
It's all relative I guess.
My guitar amp did not sound while in the middle of our gig. Any possible suggestion that we have to look for. Thanks for your video.
I have two solid state amps. A Randall RX120 head that has audio dropouts and a Crate Flexwave head that doesn't even turn on anymore. This video might just be a lifesaver!
Awesome video, especially for a guitarist on a budget that can't just go get a new amp. Thanks!
I didn't hear you talk about the caps but worth mentioning to your son. A quick check to see if the caps had residual voltage on them is always worth doing.
Thx for the video, I have an 80’s Peavey Musician MK iii 400 Series and it won’t power on, the fuse keeps blowing, I may have plugged into my cab with a different ohm rating. Any ideas? Thx
Thank you for sharing your knowledge about making amplifiers look and sound good.
Kid is FREAKIN’ talented. Rock on!
Great Video! I have a question, my old amp is losing volume after a while playing. It still works but the volume goes down very noticeable. Any hints? Thanks!
Sounds like a bad tube or cold solder joint, but can be dirty pot dial. Troubleshooting is eliminating possibilities.
Hi. I have a beautiful looking tweed SS amp, 35 Watts and 10" speaker. I've had it from new. I always thought it sounded warm but over time I've had to increasingly cut the bass and mid to almost off and boost the high to max. Even then it sounds very muddy. I only use clean channel but issue is apparent on drive channel also.
Is there a particular component I should be looking at to address this? I am an electronics engineer.
The amp in question is demoed by a popular TH-cam guitarist and sounds much brighter so I'm pretty sure mine is "faulty".
Cheers
Just watching your video helps me out a lot. Thank you.
[I have a CRATE MX120R, a two twelve amp I haven't been able to work in many years]
Did electronic cleaner help?
@@TampaTec I don't have that cleaner, but I'll prolly order it. Let you know if it works.
Whats the heaviest element in nature? 0:18 is a perfect explanation.
Besides helpful amp tips, your son is great, as are you! Never seen such a butifull relation on TH-cam, cheers!
What solder gun do you recommend? I have the old version that looks like a framing nail attached to an extension cord.
What about a ringing sound that is tied in with how much gain you apply. I’ve got a Yamaha thr30ii that creates a phone like ringing noise when I turn up the gain. Ty
Thanks for posting this video! Very helpful! I'm just starting to try and learn to repair my amps as of about an hour ago lol.
My Marshall gfx 30 stopped powering on
Where should I start?
It has a rocker switch
Do you think the switch failed?
Or became dirty?
that boy is going to be a great guitar player one day
Great parenting,I always watch your videos to help with my arcade repairs etc thanx for taking the time to make each video🤘🤘
Very good tips. I fixed my Kustom bass combo easily. Speaker wiring (factory connections) were loose. I soldered all connections of wires and crackling noise is gone now. 👍🏼
Just grabbed a blue voodoo 60 amp head. Any idea why the channel switch from clean to distortion might not work?
Hey! Great video. Quick question. Just got a Line 6 Spider III today and no matter how far I turn the Master volume or Channel volume up the volume is barely there. Any suggestions? I could really use the help. Thank you!
My friend is having an issue with his Fender Rumble 100v3. He says the amp turns on, makes a crackling sound and then shuts off. Do you know if its possibly the power section of the amp? I'm not sure if it's the power supply.
Nice job on this video T.T. , I have a old Crate with audio drop out . I'm a service tech and I'm pretty inclined electrically I just never got around to doing it but I will first thing tomorrow morning. Thanks to your video pro-tips . Thx brother
So I have Marshall V8040 apart. Same burn marks at resistors as you. Test on them says both reading 69 ohms but I havent snipped wire like you. Is the read on both 69 because one is loose off pc board?
Great video and loved the playing !!
Nice way of demonstrating how to repair a guitar amplifier with your young assistant learning on it.
AGREE
Will the jack inter change from first act to fender squir
Great video and very informative thank you very much! how about did you learn about this? I'm interested in music technology and I'd like to learn about it but I don't no where to start. apart from youtube videos
TH-cam tutorials are free and good way to learn.
@@TampaTec thanks, did you study electronic engineering in college?
What about power on and after min goes off but eventually goes back off...if any capacitors are bad they have be replaced before soldering correct
So cute how the little was saying “be carful” he really appreciates this Amp
Thanks, I'll check this stuff. I'm tired of banging my amp on the top. At gigs folks just think I have anger issues. Also, it makes me mad your kid is already better than I am. He just kills it with that Gypsy jam thing he does!
My guitar amp has two independent channels. One channel hums, with a rotating sound, and the other plays just fine. It is old. I picked it up for $300 bucks at an antique store. Will this procedure cure that problem? It turns on fine, but one circuit, powered by the same chord does not receive my signal. AJM
Appreciate the helpful video's. I'm hoping for a little help. I have a randall rg100 G3 plus. It is a valve/ss. The distortion channel works fine. But the clean channel not so much. It will light up when I switch channels but none of the knobs, other than master volume will work. I don't know why?
While i was playing PEAVEY VYPYR 30, All the lights flickered and one of the light wasn't. After shutting it off, the tone changed. the red channel i.e high gain seems to have less distortion. Any idea what seems to be the problem ?
I have a line 6 Flextone 2 that worked perfectly but one day I plugged in my guitar and the volume is a whisper. I can’t get schematics from line 6 so that’s no help. I’m a combat disabled vet and I just do t have money for a new/used or repair costs any ideas? I checked the common issues; burnt fuse: no, obvious shorts: no, loose disconnected wires/connections: no! Thanks I hope I can figure this out
i got a marshall ms-2 its a small battery amp. and for some reason the amp will not start up. i seen that the battery was leaking that acid and i cleaned it up.
Capacitors don’t always bubble when they fail. It’s just as common for the rubber seal at the bottom to break down which causes the electrolyte to leak out the bottom.
Adding to previous I own a Peavey pa which buzzes to let me know power is going on but just isn't working..ie doesn't light up etc any ideas on this please.. I run an open mic where I help people get stage experience and charity gigs ..and it's my spare pa used for these gigs ..ty
Thanks from Brazil.
Thanks for this vid. You put more into a short vid than any of the others. I have an Ampeg that was dropping sound. After watching the vid, I hammered it with my fist on top. Working again. lol. Such a rock n roll fix. Guess I might have a connection issue to look at though. Your son rocks; mine just getting started. subbed.
Such a rock n roll fix. ha hahahahaha....That was really good....
That's known as 'percussive maintenance'.
I just bought a kustom quad 100 dfx from a pawn shop and when i turn on the volume cuts in and out at first but after like 3 min it plays but then cut back out again any idea what it would be and how much it should cost to fix
I have a SUPRO 1650RT and everything works EXCEPT no gain and the RECTIFIER TUBE is not lit up at all, stone cold. Checked it with 2 different new rectifier tubes and tube is still a No Go - could the rectifier section have its own fuse?? any thoughts. PLEASE HELP - Very frustrated because everything else works.Thanks.
What a tune as well, thanks for helping I feel way more confident going at my old amp now!
I bought a used roland street cube from guitar center. It arrived with no power cord so no idea if it would work if i had a power cord but i tried couple different sets of new batteries and amp does not power up. I only paid $89 for the amp and usually they are more $ so if i can somehow troubleshoot why it doesnt power up and repair it would be awsome. I have 45 days to return it otherwise. Any ideas what to check or try?
Song choice by your kid was awesome! A+ on dadding!
Or B+, better, if you're a tube dad.
Hey Tampatec. On that Marshall 8040 I fixed loose connections installed new resistors. And now spring reverb doesnt work. Everything looks ok.
hello Tampatec, I have the exact same amp with the exact same resistor problem I was wondering if it would be alright if I replaced the resistors with the same 68ohms resistance but with 5w ceramic version instead of 3w?
Can I use an anti-rust spray?
I have a bugera v22 ,I have had for a couple months now ,and when playing bassy stuff the bass gets woofy and flubby ,I changed the tubes and put in a good celestion. any ideas ??
Thank you so much! What are the chances? This is the exact model amp I'm trying to fix. Helped me tremendously, thanks again.
Edit: omg your son played Hypnotize by System of a down at the end hahaha this is the best video I've ever clicked on
The problem of most transistor guitar combo is the big panel inside. Instead of using separated small panels for the separated function (panel for the poweramp section, panel for a power supply section, panel for clean, panel for drive chanel), they solder everything in one panel. It is cheaper of course but way more fragile due to that if the amp loud enough, the big panel will resonate with bigger amplitude and this resonation breaks the soldering. Furthermore this breaks are tiny, almost invisible but blocks the signal. Or cases cracking sound.
If they use separated panels for functions it could make the amplifier to modular like a PC what is the main reason of their popularity. Just imagine, if you like the clean channel but hate the drive channel, you can easily fix that without buying another amp.
Modular "amps" exist, they just cost a lot more (time, learning curve and money) than most people are willing to pay for. Any professional sound tech will use a gain structure with many different parts: pre-amps, saturators, exciters, DSP, power amps, x-over etc...
However, the idea that a larger board will resonate more isn't really true. The heavier the panel, the less it will resonate at the end of the day (resistance to acceleration and harmonic dampening, all that fun physics stuff). The wires between panels on those hand wired amps fail way more often than most modern PCBs.
the bigger the panel the longer the wavelength and the bigger the amplitude can formed due to the less resonance attenuation. More small panel means more fixing point. The bigger amplitude what cases breaks in soldering. My experience shows that big panels always break soldering somewhere in time.
The solution would be easy. they should fix the panel at more point. but it is unfortunately rare.
Good young kid, good poppa! Thanks for the vid as I am having buzz issues
Hi there! help me fix my guitar amp.The sound pop up and the led display on the effects turned off/on whenever i strum hard on my guitar. But it works properly in normal condition. Hope yiu can help me. Thanks
I have a Vox Beatle amp and when I turn it on there is just a loud hum. I took the guts out and noticed one of the ceramic resistors in the power section is hot to the touch. Could this mean the power transistors are bad? I did a visual scan and found no burned parts. I think the power section is bad because there is no interplay with the preamp at all just a loud hum. What do you think and where should I look? Thank you, Charles
Hypnotize! Brilliant.
I have a Laney HCM60R that I got second hand, the "crunch factor" (basically overdrive mode) doesn't work, its super quiet and crackles in and out. Bad solder maybe? Ill try have a look, thanks for this video.
First use cleaner in the ports then check bad solder on the ports solder joints.
I have the exact same amp. I gave it to my niece and she's been having drop out issues with it. I will follow your steps to see if that resolves the issues - thanks!
Thank you so much, I just took the head out of my amp and cleaned it up and cleaned all the POTs with contact cleaner and it sounds much better!
Did you discharge anything?
@@daydrmrofficial1966 everything was unplugged and i let it all sit for a while so the capacitors would discharge themselves
I realize that this repair video is already 5yrs old but I'm having an odd audio issue with my Marshall Valvestate VS100 Head.. Everything works as it should and the amp sounds great, but when I stop playing there's this "sizzling sound" that occurs as the amps audio is at the end of "ringing out".. This VS100 was built in 1998 & I bought it used from the 2nd owner who knew the original owner personally.. He told me that the 1st owner played in a Death Metal Band so I can just imagine that this VS100 has probably has spent most of it's life cranked to 10 which could possibly have overdriven a chip or a cap or something.. I've already replaced the tube & the weird sizzling sound is still there so now I'm just trying to figure out where it's coming from or rather what's causing it???..
What about a bad diode? What would that cause? My amp has power, buzz through speakers but no audio when trying to play..
This was after soldering a capacitor back on to board that had fallen off due to bad solder joint..
Thumbs for the talent, the fix and most importantly the father and son bond. Subscribing to your channel right now.
Nice job, a good video very helpful for kids and even adults to learn basic troubleshooting and electronics soldering.
i have an audio interface tascam us-366. the volume knob is scratchy and i spray contact cleaner on it. but after that, the sound is too slow even at maximum level. why is this happen?
just found this. I got a Marshall 15W cracking sound so hopefully your video helps. Thanks
Hello Mr Tampatec!
Thanks for your nice video.
I was facing some problem with my own amp, which is a similar model. (Valvestate
VS 65R) Two capacitors were changed, along with a 12ax7 tube and I was pretty sure the
problem was solved. (Nothing wrong with the tube, except it is old. So I
replaced it with a Russian electro harmonix, cause I was searching for a better
sound for my amp. By the way if you have any tube suggestion to make, please do…)
I finally assembled my VS 65, but now there is an audible buzz while it is on... It is a
bassy sound like note, not a hiss. It is not that loud, but the amp is not so
silent any more. If I unplug the jack from the amp's input, it is quite silent,
even if I put the volume knob at high levels. I hope I'm not bothering you, so
I'm asking: Is this sound possibly coming from the new pair of capacitors that
I've changed?
The specs of the old ones were 50V 2200μF and 85 o C, while the new ones are of bigger
diameter and a different heat tolerance, which is now 105 o C. They also have
the OX and 4(2) marks on them, which I don't know what it's about.
I also noticed, that the old pair of caps was steadily fixed on the PCB with some thermo-glue, which I didn’t put while I was replacing them. Does it have any particular role
in this case? I would appreciate if you could enlighten me a bit.
Kind regards
John
This is a common symptom of 60 Hz (or 50 Hz) hum. The connection to ground could have been inadvertently affected.
Note that there are only a handful of manufacturers of tubes, and they all provide very similar quality tubes. The resale companies simply provide QC.
very informative.. what song was your son playing at the end of the vid.?
Hypnotize, system of the down
I have the same amp and will try this but one thing I need is the on off switch which is busted ..but one knob causes a static noise which I hope the spray will fix Ty..
I posted a moth ago asking about my volume only going up to a whisper. I checked for cracks,loose wires and nothing! So what do you think it is?? I also do all the work with my 11 year old he showed me your channel.
I have a fender power chorus. The volume surges after about 20 minutes of playing. Any ideas what causes this? Can't seem to find an answer. Thanks!
my Acoustic brand bass guitar amp wont turn on. it was working fine. what could be the problem?
Great video!!! I just bought a cheap 20W amp and it doesn’t sound right at all. Going to opening it up this evening and use your video as a rough reference
sir I have a problem with my dsl 40 watts amp with its clean crunch button,,it looses audio like up and down volume,,,,