Sony AC-550CE Maintenance Manual

Contents

2-1AC-550CESection 2Electrical Alignment2-1. Output Voltage AdjustmentEquipment : DC voltmeterPreparation1. Turn OFF the power of the AC-550CE.2. Connect the DC OUT connector of AC-550CE asshown in the figure below.3. Turn ON the power of the AC-550CE.AdjustmentAdjust 1VR201/A board so that the DC voltmeter readingbecomes +13.5 +0.2 V dc._02-2. Excess Current Detection andAdjustmentnOnly when part has been replaced, perform adjustment.Equipment : DC ammeterPreparation1. Turn OFF the power of the AC-550CE.2. Connect the DC OUT connectors of the AC-550CE asshown in the figure below.3. Turn 1VR202/A board fully counterclockwise 3.4. Turn ON the power of the AC-550CE.AdjustmentSlowly turn 1VR202/A board clockwise 2 so that the loadcurrent becomes 15.0 ± 0.5 A.A board (component side)