3-2. Power supply malfunctions

(1)No power

<Remedy>

Electrical components for detection of the malfunction

Power unit (PU)

Master board (PWB-A)

Power switch (S1)

 

 

 

 

 

Reference

 

WARNING DIAGRAM

Step

Remedy

 

 

 

page

Control signal

Location(electrical com-

 

 

ponent)

 

 

 

 

 

 

 

 

 

 

 

1

Check if the power supply cord

-

-

 

-

is connected to the main unit.

 

 

 

 

 

 

 

 

 

 

 

 

2

Check S1 operation.

-

-

 

2-A

 

 

 

 

 

 

3

Replace the power unit.

-

-

 

-

 

 

 

 

 

 

4

Replace PWB-A.

-

-

 

-

 

 

 

 

 

 

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