Walked in the music room last night to play a little flip the amp to standby and let it warn then on and --nothing? Start checking everything and the plastic input jack on the Blackstar cab had come apart and dead shorted !! Replaced the jack but now the tubes light but the amp is stone cold dead so bet the dead shorted output fried the $%$# transformer. Locked down with COVID this has been the week from HELL and now this just DAMN!! Pulled out the old Carvin X 50 head as the MT 15 is at my Church and had forgotten just how much of a wicked 80's/90's metal tone machine this old X amp was. It's just classic modded Marshall style metal tonal NIRVANA! Now I have to deal with the carnage with the Archon. !!
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D#$$# it may have smoked the Archon head!
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D#$$# it may have smoked the Archon head!
Last edited by Ascension; 11-20-2020, 07:27 AM.Guitars
Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.Tags: None
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Chinese build quality?Join me in the fight against muscular atrophy!
Originally posted by Douglas AdamsThis planet has - or rather had - a problem, which was this: most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movements of small green pieces of paper, which is odd because on the whole it wasn't the small green pieces of paper that were unhappy.
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Originally posted by Gtrjunior View PostAre you 100% sure the tranny is fried?Last edited by Ascension; 11-20-2020, 05:03 PM.Guitars
Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.
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Originally posted by GuitarStv View PostChinese build quality?Guitars
Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.
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run the effects send out to headphones or something
see if you are getting signal from the amp
plug directly into the return and see if anything comes out
in the electrical world its called loop test
divide the circuit in half
check each half
then repeat til you find the bad component
could have a blown speakerLast edited by ehdwuld; 11-20-2020, 05:17 PM.EHD
Just here surfing Guitar Pron
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GNX3000 (yea I'm a modeler)
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Originally posted by Ascension View Post
The MT 15 is the China amp the Archon is US.Join me in the fight against muscular atrophy!
Originally posted by Douglas AdamsThis planet has - or rather had - a problem, which was this: most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movements of small green pieces of paper, which is odd because on the whole it wasn't the small green pieces of paper that were unhappy.
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Originally posted by Ascension View Post
Not yet but tubes are lit and nothing. The amp was idling fir a few after I fired it up before I hit it with the guitar volume down and it was just dead. Started checking connections and the jack just fell into the cab when I checked it as the nut had backed off the jack it likely was shorting. Got t all back together and now have nothing. Pulled out the old Carvin and plugged it in to check the cab and it works so--. My thoughts are it run with a dead short on the output for about 10 minuets. Had strung a guitar and plugged it in to stretch the strings and let them set before I locked the nut but got called away before I fired it up. The perfect storm and got some thing for sure.
I would think in standby there shouldn’t be any way to fry the tranny?
And you checked both fuses? If you have power the mains fuse is still working but possibly the other one blew out?
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Originally posted by Gtrjunior View Post
Was the cab in standby while idling? I’m assuming it has a standby (my Blackstar HT-20 doesn’t)
I would think in standby there shouldn’t be any way to fry the tranny?
And you checked both fuses? If you have power the mains fuse is still working but possibly the other one blew out?Last edited by Ascension; 11-20-2020, 11:02 PM.Guitars
Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.
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Couple of quick notes:
1. The natural state of an input jack is "shorted" when nothing is plugged into it. That's done on purpose so that you don't "float" an amp input when nothing is plugged in. Now, if it fell inside and landed against some high voltage component, that could be different.
2. Having the output tranny shorted, if there's no signal, also won't hurt anything. There would have to have been a signal going through it, while shorted, to damage the transformer.
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Originally posted by ArtieToo View PostCouple of quick notes:
1. The natural state of an input jack is "shorted" when nothing is plugged into it. That's done on purpose so that you don't "float" an amp input when nothing is plugged in. Now, if it fell inside and landed against some high voltage component, that could be different.
2. Having the output tranny shorted, if there's no signal, also won't hurt anything. There would have to have been a signal going through it, while shorted, to damage the transformer.Last edited by Ascension; 11-21-2020, 08:22 AM.Guitars
Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.
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