Sony TA-AV531 Service Manual (includes Corrections, extraction from Instruction Manual (User Manual)) in English TA-AV431 / TA-AV531 (the amplifier section in SEN-431CD / SEN-531CD) 9-957-662-11 file:\\Sony\_ok\TA-AV431-AV531_en_sm.pdf Sony TA-AV531 (the amplifier section in SE...