Denon PMA-710AE Service Manual

Also see for PMA-710AE: Owner's manual User manual

Contents

10PMA-710AETROUBLE SHOOTING1. The power can not be turned on. (Power indication LED does not light.)2. The power turned on, but a sound does not output normally. (Both channels)2.1.2.2.2.3.Check the insertion of the Power Part.Check whether power is being supplied to the coilof the standby transformer (T901). Power not supplied. Broken wire in standby trans-former (T901)Power supplied. Malfunction of D941-944, C941or C943.Set remains in standby mode with power indicatorLED lit red.Check each connector. The connectors are insertedcompletely. Malfunction of RC71 or IC41.Power indicator LED remains flashing red andmuting mode is not canceled (protection mode isset).Check the power amplifier output's offset voltage. Offset voltage output is 1V orgreater.Damaged power amplifier cir-cuit.No offset voltage is output. Damaged temperature detec-tion circuit or protection circuit.Set operates, but then power indicator LEDflashes red (protection mode is set).Check the power amplifier output's offset voltage. Offset voltage output is 1V orgreater.Damaged power amplifier cir-cuit.No offset voltage is output. Check the bias current.