Mini Silver Jubilee left on standby for 72hrs

Discussion in 'Marshall Amps' started by CbusBrian, Jan 13, 2021.

  1. CbusBrian

    CbusBrian New Member

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    Hello all,
    I’m a moron & accidentally left my Marshall Mini Silver Jubilee left on standby for 72hrs
    When I found it I turned it off then worried if I’d hurt the amp. I turned it back on & there is very little volume. Very Very weak sound.
    Have I possibly killed the capacitors, preamp, power amp? Or just the tubes?
    Anyone ever been this stupid?
    thank you in advance for any advice
     
    tce63 likes this.
  2. Drinkingdeath01

    Drinkingdeath01 Well-Known Member Gold Supporting Member

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    I've done longer before. Wasn't a Jube and it didn't hurt anything. Sorry I'm not much help, just figured you might feel better knowing that your not the only one who's done this.
     
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  3. tce63

    tce63 Well-Known Member Gold Supporting Member

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    I have done that a few times.
    Happy to say that my amps still works as they should.

    And :welcome: to the forum
     
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  4. V-man

    V-man Well-Known Member

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    Wait ‘til the light burns out. Ever make a rage appointment to the tech/your workbench?

    By the third time you notice it’s been on standby like that, you will.
     
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  5. Freddy78

    Freddy78 Member

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    that should not happen , i forgot as well to switch off one of my amps for 48H without standby and all was ok, in your case i would guess that most probably one of your tubes might be gone .
     
  6. MonstersOfTheMidway

    MonstersOfTheMidway Well-Known Member

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    @OP: the fact that you said the amp still powers up is a good sign. Most likely, a power tube is failing, which is not too high a price to pay given how long the amp was left on.
     
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  7. dro

    dro Well-Known Member

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    I have a 2525h Have left it on before. Have had the problem you describe. Don't know if they were related or not. Took to a local tech. He said once he got in and poking around. It started working again. He kept it for a week. Never replaced anything. Picked it upp and still works. I once left my JTM45 on after rehearsal. Was on 6 days. Never had a problem with it.
     
  8. junk notes

    junk notes Well-Known Member

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    Take a look at the top of the electrolytic cans to see if they show any signs of being warped or deformed.
     
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  9. CbusBrian

    CbusBrian New Member

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    Thank you everyone for your replies.
    I gave my amp a fresh look over this morning & it turns out that when I turned my amp off last night I unplugged my delay pedal out of the effects loop but did not unplug the cables from the back of the amp. The amp was still sending the signal through the effects loop cables but the cables were not plugged into anything.
    Turned on this morning & the amp sounds GREAT Sooooooo relieved. LOVE this amp.
    Thank you again everyone
     
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  10. bigbadorange

    bigbadorange Well-Known Member

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    Good to hear, I was suprised that anything failed. 72 hours in the lifetime of an amp really isn't that much.
     
  11. Stratmauler

    Stratmauler Member

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    I have read an article where EVH stated that he tested his 5150 amps by leaving them full-on for days.
    He said they should be able to take that; or there's something wrong.
     
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  12. crossroadsnyc

    crossroadsnyc Senior Moderator Staff Member

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    I think he'd actually leave them on for like a month.
     
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