Electrical Alignment; Output Voltage Adjustment; Excess Current Detection And Adjustment - Sony AC-550CE Maintenance Manual

2-1. Output Voltage Adjustment

Equipment : DC voltmeter
Preparation
1. Turn OFF the power of the AC-550CE.
2. Connect the DC OUT connector of AC-550CE as
shown in the figure below.
3. Turn ON the power of the AC-550CE.
Adjustment
Adjust 1VR201/A board so that the DC voltmeter reading
+0.2
becomes +13.5 V dc.
_0
AC-550CE
Section 2

Electrical Alignment

2-2. Excess Current Detection and
n
Only when part has been replaced, perform adjustment.
Equipment : DC ammeter
Preparation
1. Turn OFF the power of the AC-550CE.
2. Connect the DC OUT connectors of the AC-550CE as
shown in the figure below.
3. Turn 1VR202/A board fully counterclockwise 3.
4. Turn ON the power of the AC-550CE.
Adjustment
Slowly turn 1VR202/A board clockwise 2 so that the load
current becomes 15.0 ± 0.5 A.
A board (component side)
Adjustment
2-1