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19
■
Control PCB Replace
1. For BU-22
Step 1: Unplug the unit, emove Control Box
(Figure 5)
;
Step 2: Unplug Terminal
(Figure 20)
Step 3 : Remove Control PCB and Replace it with new one.
(Figure 20)
2. For BU-58 (Figure 19)
Step 1: Unplug the unit, remove Control Box
(Figure 11)
;
Step 2: Unplug Terminal
(Figure 21)
Step 3: Open the 4 Snaps of Control PCB by hand
(Figure 21)
Step 4 : Remove Control PCB and Replace it with new one.
(Figure 21)
Terminals
Screws (2pcs)
Control PCB
Bracket
Control PCB
Phillips
Screwdriver
Terminals
Control PCB
Bracket
Control PCB
Snaps
Control PCB
20
■
Power PCB Replace (Figure 22 & Figure 22-1)
Step 1:
Unplug the unit, remove Control Box
(
Figure 5 & Figure 11);
Step 2: Unplug Terminal
Step 3: Hold the 4 Plastic Fasteners, and draw upward Power PCB carefully.
Step 4: Replace Power PCB with new one.
1.For BU-22
2.For BU-58
Plastic
Fastener
Power PCB
Terminals
Plastic
Fastener
Plastic
Fastener
Power PCB
Terminals