Strange problem in my Marshall jvm here, after some minutes being on the starts slowing loosing gain, what hell can the problem be?
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Marshall looses gain after 2 mimutes
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Hello!
Here you have it.
http://musiciansroadhouse.com/viewtopic.php?t=11597
I'm going to check the tubes, to see if have somekind of problem with them and then let you know.
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If you can't fix it, I probably can.
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I changed tubes and they seem fine, i tapped all the components and i see that the filter capacitor C47 and C49, are very sensitive, by tapping them i see the sound changes can this be the problem?
If its not the filter capacitor maybe something around that area or the tube in that spot of the preamp.
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Originally posted by Rod View PostHello!
Here you have it.
http://musiciansroadhouse.com/viewtopic.php?t=11597
I'm going to check the tubes, to see if have somekind of problem with them and then let you know.Originally posted by EnzoI have a sign in my shop that says, "Never think up reasons not to check something."
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Originally posted by Rod View PostStrange problem in my Marshall jvm here, after some minutes being on the starts slowing loosing gain, what hell can the problem be?
Whether loosing "gain as gain" or "gain as power".
If loosing "gain as gain" whether loses gain on all channels or on some.
Test
When starts slowing loosing gain, connect the guitar to JS4 (PA IN RET) and describe what you hear.
Connecting the guitar to the JS4 the guitar connects directly to the power amp.
It's All Over Now
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Originally posted by Rod View PostHello i have the jvm410h
Marshall JVM 410HJSIt's All Over Now
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