good evening, I open a new discussion because I was wrong to write under the old post of another user who had the same problem on a 6 channel vrx (ld1.2 cards) and had solved. In a few words, after 10 minutes of listening, the amplifier starts to emit background noise / noise. The problem lies in the modules ld 1.2 because if I insert those of the 2 channels vrx 2.250 it disappears. A forum user had identified the offending bjt and had solved by bypassing something. Would anyone be kind enough to tell me what to do and where to intervene? place photo of the ld 1.2 board (photo number 1 where I circled the bjt which seemed to indicate the other user as faulty and the capacitors on the side if hi understood well where he recommended a bypass but with what?) and a vrx 1-2 signal input module (photo number 2) where I would like to know if anyone can tell me the value of the circled capacitors not having an instrument that measures below nF. Thanks in advance to everyone who wants to help me. Greetings Mino
