Popping Noise when I power down to standby

JCM Range, 800s, 900s, 2000/DSL, 2000/TSL

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D28boy
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Popping Noise when I power down to standby

Postby D28boy » 28 May 2014, 03:12

Hi Guys

just wanted to run this by someone who's more knowledgeable than myself..

Basically after I've used the amp and I want to switch off , when I go to standby the amp makes a loudish popping noise that really annoys me. If I'm careful and slowly use the switch I can avoid this. Is this something I should be concerned about ? The amp was recently serviced at Bletchley and they were happy with it.

thanx for the advice

surfnorthwest
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Re: Popping Noise when I power down to standby

Postby surfnorthwest » 28 May 2014, 07:57

It is nothing to worry about, although I agree it's annoying. Turning your master down prior to turning to standby.
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Re: Popping Noise when I power down to standby

Postby Anitoli » 28 May 2014, 12:49

Are you going standby off first then power or the other way around?

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Re: Popping Noise when I power down to standby

Postby D28boy » 29 May 2014, 00:39

Anitoli wrote:Are you going standby off first then power or the other way around?
Standy then power...the correct way! :beerme

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Re: Popping Noise when I power down to standby

Postby Mats A » 30 May 2014, 00:14

I've had it on some Marshalls also. Think it's just the way the amp is made. I don't think it's something to worry about. But it can be real annoying i know.

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Re: Popping Noise when I power down to standby

Postby Roger » 20 Nov 2015, 13:49

Hi. I have a tsl100. Two years ago i have the same problem. I think could be the zener diode from rear jack pcb. Check this Zd3 zd4 zd5 zd6. Are very weak. You can put two in paralel connection. Will be strong.



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