Hello friends.
Years ago I bought on Ebay, my Red Rose Music Rosette 2 phono preamp, which I use for MC cartridges, I have been very happy with it, but recently, when it has been running for about 15 minutes the right channel stops working.
If I turn it off, and leave it for 5 minutes, the channel starts working again.
I have opened it to see if it had any cold solder, and my surprise is that I have found it modified, it has changed the operational amplifiers and bridges on the PCB here and there.
I don't have the schematics of this preamplifier and I would like to leave it as it comes from the factory.
Does anyone have the service manual for this preamplifier, obviously I understand that there is a cost involved.
Years ago I bought on Ebay, my Red Rose Music Rosette 2 phono preamp, which I use for MC cartridges, I have been very happy with it, but recently, when it has been running for about 15 minutes the right channel stops working.
If I turn it off, and leave it for 5 minutes, the channel starts working again.
I have opened it to see if it had any cold solder, and my surprise is that I have found it modified, it has changed the operational amplifiers and bridges on the PCB here and there.
I don't have the schematics of this preamplifier and I would like to leave it as it comes from the factory.
Does anyone have the service manual for this preamplifier, obviously I understand that there is a cost involved.
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