Velodyne CHT-10 Preamp section help
Dear Sirs, This is my first post in this site. I am from Argentina and I have a CHT-10 sub (220volts), and it started to make a strange sound. When disassembled, the power supply board provides the required voltages, but when I reconnect the preamp (green board, picture attached below), positive 15v voltage shorts and don't provide the required voltage. Could you please enlight me as to how to repair it? I don´t have official service in my country. Thank you in advance, SCA.