I don't know anything about the circuitry in the 17LS but I assume it's a tube design. It may be the preamp has a leaky output coupling capacitor which is letting some DC leak through to the output, and it may also be that the preamp has a muting circuit on the output which is reacting to the DC leaking through. Come to think of it, it may just be that your muting circuit itself is defective. In any event, it sounds like a trip to the service technician is in order.
Conrad Johnson Premier 17Ls preamp shuts off
Hello,
I am a happy owner of a C/J amp system (also includes a Premier 140 amplifier). However, since the very beginning of the life of my system I have experienced issues with the power shutting off after a while. I had the system repaired at a shop here in Paris, but after a couple of years the power started getting off again. Usually the led lights are also affected and start to blink and lose strength.
The system is seven years old (but that might not matter much, given that the problem occurred pretty early). We use it moderately (very other day we might listen to a couple of CDs). It also has a very low hum (we can barely hear it).
Any help would be greatly appreciated. At the very least I could help the shop this time around in finding a more durable solution...
Regards,
Antonio
I am a happy owner of a C/J amp system (also includes a Premier 140 amplifier). However, since the very beginning of the life of my system I have experienced issues with the power shutting off after a while. I had the system repaired at a shop here in Paris, but after a couple of years the power started getting off again. Usually the led lights are also affected and start to blink and lose strength.
The system is seven years old (but that might not matter much, given that the problem occurred pretty early). We use it moderately (very other day we might listen to a couple of CDs). It also has a very low hum (we can barely hear it).
Any help would be greatly appreciated. At the very least I could help the shop this time around in finding a more durable solution...
Regards,
Antonio
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