Hey y'all,
I have a JC-120UT (the new one) that is not putting out signal from one speaker, but the symptoms are very strange.
1. Both speakers OK, checked, pass sound no problem.
2. Low volume on both Preamp Channels
2. Line out OK, both sides, both preamp channels.
3. SEND only works with Channel 2, Channel 1 does not pass through. ???
4. Amp sounds for like the appropriate volume for half a second on startup, then is quiet. Also it occasionally pulls a ton of juice through the light bulb limiter on startup until I cycle it off / on again....
5. DC offset of 50mv on the working channel.
So, the weird part is that, SEND doesn't work with Channel 1, but the preamp channels are not linked to L / R power amps. This means we are dealing with 2 seperate issues at least, not counting the DC offset? Hopefully someone with some better SS amp experience can point me in the right direction! Thanks guys and gals.
I have a JC-120UT (the new one) that is not putting out signal from one speaker, but the symptoms are very strange.
1. Both speakers OK, checked, pass sound no problem.
2. Low volume on both Preamp Channels
2. Line out OK, both sides, both preamp channels.
3. SEND only works with Channel 2, Channel 1 does not pass through. ???
4. Amp sounds for like the appropriate volume for half a second on startup, then is quiet. Also it occasionally pulls a ton of juice through the light bulb limiter on startup until I cycle it off / on again....
5. DC offset of 50mv on the working channel.
So, the weird part is that, SEND doesn't work with Channel 1, but the preamp channels are not linked to L / R power amps. This means we are dealing with 2 seperate issues at least, not counting the DC offset? Hopefully someone with some better SS amp experience can point me in the right direction! Thanks guys and gals.
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