I think for opening amplifiers I'd recommend unplugin them and then turning them on to make sure the capacitors don't hold any charge. They could be dangerous.
My amp is all clean now and the difference is like night and day. I just bought it second hand and am blown away by it. Thanks for this video, it's fun and easy for a first-timer to follow. Your accent is gorgeous. It's like the accent I use when I pretend my samoyed is talking :-D
i fixed my input selector with a quick and easy fix...i took the straw for my canned air and crushed it in a vice. This allowed me the clearance needed to get in those spaces behind the knobs and dials without opening up the unit. I just sprayed it in there while turning the knob a few times. Spray from different angles so you crosss-spray the potentiometer. Good Luck. Worked great for me.
I have A FR 4900 Panasonic shortwave radit's unextraordinary radio. Watching this video tells me that my selector switch is dirty it's dirty. Unfortunately it has Layers of circuit board. So you saved me a lot of steps. Thank you I'll keep watching
Thanks, just what I needed. Have a technics that I need to remove front panel to fix dry joint . But I needed to unclip remote switch. Now I see you used long nose tweezers to unclip. After I've done the dry joint reflow I can also clean like you show here. Volume control knob is scratchy just like input selector so that's another story... But this helps for two things. I have vx800 technics
tried the solution on my parents Yamaha receiver, the input nob was causing the sound to drop in / out. Appears to have worked like a champ, not bad for $5 from a large superstore. Now I have to spend five more to spray out all the dust in this thing! Thank you for the post! Oh, anyone with tips on an onkyo that seems like the DSP is broken, I need a fix for that as that one is my current receiver.
I wonder how many "Limited Edition" models they made, I had that exact same model. May have been a good amp, but it badly needed EQ controls. Then one day it wouldn't power up so I disposed of it...
I had this problem with an integrated amplifier from 1978 and now I'm dealing with the same problem with an audio interface from 2018....now that's progress for you or should I say lack of it.
@@koffing2073 It's not a digital problem it's a clean the volume control contacts problem, I just can't believe no one has developed a self cleaning potentiometer in the past 50 years.
Great bro.. My turn pre-amp knob is scratcgy.. I Wanna replace it. It's written A10k C10k.. It means both A10k or c10k will work? Or is it a particular type
@@Techscrews okay then thank you The golden signature is baiting me to even look at stereo amp I don't need it but my luxman lv103 stopped giving sound and I'll fix that bc I love it and get the sr4500 😆 thanks 🙏
I didn’t have to open mine I took medical surange with the needle still on it and got some 99% alcohol and inserted on the edges of it as I turned the knob
It's what I used on my Kenwood amp and it seems to have done the trick, I recommend using it minimally though and not like some have done in other videos where they've used like a quarter of the can on one pot. If possible leave amp cover off or just wait from fixing screws back yet to see if it's worked, you can always unplug and repeat again if it wasn't quite enough..
@@rp61productions wd 40 now makes electronic cleaner spray, i would guess that would be ok...But from what I have read on other sites....regular wd 40 or pb blast ect. Is likely to cause major problems in the long run.. i just bought CRC brand electronic spray cleaner...those type of cleaners evaporate relatively fast.....wd 40 ect .leave oily residue and will damage internal parts beyond repair is what several electronic technicians have told me... I am just trying to learn this myself and not at all trying to sound like I know it all. Lol. Because I certainly dont know it all!.. lol.... I am merely trying to pass along some info I ran across so none of us damage our products. Good Luck & God Bless All!.
@@luc61786 wd 40 now makes electronic cleaner spray, i assume it is similar to CRC and others....but I for sure would do some research to make sure it is ok!
The name Marantz has changed owners ten times since Saul Marantz started the company in 1953. That's just the way it is in the electronics industry. For awhile in the eighties the name was used by Superscope. A company known for low priced basic electronics.
I think for opening amplifiers I'd recommend unplugin them and then turning them on to make sure the capacitors don't hold any charge. They could be dangerous.
My amp is all clean now and the difference is like night and day. I just bought it second hand and am blown away by it. Thanks for this video, it's fun and easy for a first-timer to follow. Your accent is gorgeous. It's like the accent I use when I pretend my samoyed is talking :-D
"We have to open the screws and find the criminal" :) Thanx for the short and simple video!
The information I needed. Love the guys accent and choice of words. A+
you have no idea how much you've helped me with this thanks !
i fixed my input selector with a quick and easy fix...i took the straw
for my canned air and crushed it in a vice. This allowed me the
clearance needed to get in those spaces behind the knobs and dials
without opening up the unit. I just sprayed it in there while turning
the knob a few times. Spray from different angles so you crosss-spray
the potentiometer. Good Luck. Worked great for me.
nice advice, thanks.
great........straight to the point ......no messing about !
Ha ha ha your accent and choice of word is priceless. Thank you for the video !!!
Thank you! 😃
Good simple explanation. Thank you for posting this!
Genius!! Mill thumbs up. Works like new now
the exact problem i was having with my amp and your solution worked perfectly!
thanks
Thanks. Happy holidays.
Gonna give this a try as mine seems to have this same issue. Great video 🙂👍 (update) now works perfect 👍. Thanks 😊👍
Glad it helped
I have A FR 4900 Panasonic shortwave radit's unextraordinary radio. Watching this video tells me that my selector switch is dirty it's dirty. Unfortunately it has Layers of circuit board. So you saved me a lot of steps. Thank you I'll keep watching
"if part doesn't want to leave it's man-cave leave it there." - word to the wise.
Thanks, just what I needed. Have a technics that I need to remove front panel to fix dry joint .
But I needed to unclip remote switch.
Now I see you used long nose tweezers to unclip.
After I've done the dry joint reflow I can also clean like you show here.
Volume control knob is scratchy just like input selector so that's another story...
But this helps for two things.
I have vx800 technics
I need to do this with my volume knob. Lovely voice btw :-)
Very helpful. It worked. Thx 🙏
Glad it helped
tried the solution on my parents Yamaha receiver, the input nob was causing the sound to drop in / out. Appears to have worked like a champ, not bad for $5 from a large superstore. Now I have to spend five more to spray out all the dust in this thing! Thank you for the post!
Oh, anyone with tips on an onkyo that seems like the DSP is broken, I need a fix for that as that one is my current receiver.
Was very helpful
Thank you 😊
I wonder how many "Limited Edition" models they made, I had that exact same model. May have been a good amp, but it badly needed EQ controls. Then one day it wouldn't power up so I disposed of it...
Thanks, it was very helpful.
Glad to hear that!
lol was watching this vid to fix something and this guy is using the same screw driver. awesome 100
it's mean, that china product top :D
I had this problem with an integrated amplifier from 1978 and now I'm dealing with the same problem with an audio interface from 2018....now that's progress for you or should I say lack of it.
not this problem on all digital
@@koffing2073 It's not a digital problem it's a clean the volume control contacts problem, I just can't believe no one has developed a self cleaning potentiometer in the past 50 years.
@@malibustacy3606 there can't be any noise on a digital volume control!
@@koffing2073 It's not digital it's a "variable resistor."
@@malibustacy3606 LOL
Let's-a-goh!!!!!!!!! Hysterical.
Thanks, very helpful 🖒
pleased to be useful
dui? driving under the influence XD
Im using a tape machine and it gives me that scratchy noise, could it be the knob aswell?
Great video my friend I like your accent
Thanks.
Thanks! You rock!
nice, thanks :)
Great bro.. My turn pre-amp knob is scratcgy.. I Wanna replace it. It's written A10k C10k.. It means both A10k or c10k will work? Or is it a particular type
Maybe first just clean it with special cleaner ?
Can you give me a tip ?
Should I get this amp or marantz sr4500 ?
the marantz sr4500 is surround receiver, it's not stereo amplifier.
@@Techscrews yeah bro I know but one guy has them both and I was thinking if you can give me a tip what model has better parts so I can choose
@@ChudGippity then just take both for test and buy that one fit better for your purpose.
@@Techscrews okay then thank you
The golden signature is baiting me to even look at stereo amp
I don't need it but my luxman lv103 stopped giving sound and I'll fix that bc I love it and get the sr4500 😆 thanks 🙏
Good job thanks
I didn’t have to open mine I took medical surange with the needle still on it and got some 99% alcohol and inserted on the edges of it as I turned the knob
So funny :) and useful! Thanks
wheres the problem? the volume control knob or the input selector switch thank you
very nice !
Thanks!
Nice.bro
He says spin , but I see slide.
could you use wd-40
It's what I used on my Kenwood amp and it seems to have done the trick, I recommend using it minimally though and not like some have done in other videos where they've used like a quarter of the can on one pot. If possible leave amp cover off or just wait from fixing screws back yet to see if it's worked, you can always unplug and repeat again if it wasn't quite enough..
@@rp61productions wd 40 now makes electronic cleaner spray, i would guess that would be ok...But from what I have read on other sites....regular wd 40 or pb blast ect. Is likely to cause major problems in the long run.. i just bought CRC brand electronic spray cleaner...those type of cleaners evaporate relatively fast.....wd 40 ect .leave oily residue and will damage internal parts beyond repair is what several electronic technicians have told me... I am just trying to learn this myself and not at all trying to sound like I know it all. Lol. Because I certainly dont know it all!.. lol.... I am merely trying to pass along some info I ran across so none of us damage our products. Good Luck & God Bless All!.
wise choice sir
never use wd40 with electronic circuits, lol
@@luc61786 wd 40 now makes electronic cleaner spray, i assume it is similar to CRC and others....but I for sure would do some research to make sure it is ok!
@@gregratcliff9831 Hello Greg, take a look on this: ua-cam.com/video/87dSmc4dO_0/v-deo.html Subtitles included.
👌👍
How do you sound test if headphones are fake or not? If you tell me how to spot fake headphones I will SUBSCRIBE RIGHT NOW!
Thought he was just pointing on Accent for Effect. .... nope
Had no idea I was a "HOMIE"
Don’t look anything like the old Marantz
The name Marantz has changed owners ten times since Saul Marantz started the company in 1953. That's just the way it is in the electronics industry. For awhile in the eighties the name was used by Superscope. A company known for low priced basic electronics.
90's Marantz Hi-Fi LOL more like Mid-Fi.