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6
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6-15
Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Flow■A:■Identifying■the■Cause■Between■the■Power■Supply■or■the■Main■Controller■>■Status■Check
Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Flow■A:■Identifying■the■Cause■Between■the■Power■Supply■or■the■Main■Controller■>■Status■Check
Flow■A:■Identifying■the■Cause■Between■the■Power■
Supply■or■the■Main■Controller
■
■
Status■Check
If■the■Control■Panel■is■black■when■the■power■of■the■host■machine■is■turned■ON,■identify■the■
location■of■the■failure■according■to■the■flow.
■
●
Flow■for■narrowing■down■troubles
If■the■Control■Panel■LED■is■ON,■the■All-night■Power■Supply■(3.3V)■is■being■supplied.
If■the■Control■Panel■LED■is■not■ON,■it■can■be■suspected■that■a■failure■has■occurred■in■the■
signal■path■of■the■Main■Power■Supply■Switch■or■to■the■Low-voltage■Power■Supply■PCB■
itself.
If■the■Control■Panel■LED■is■ON,■it■is■likely■that■an■error■has■occurred■to■12V■power■supply.■
3.3■V■power■supply■route
J1003
Main Power
Supply SW
J4
Main Controller PCB
J25
J321
DC 3.3V
DC 3.3V
J301
AC
Low-Voltage
Power Supply PCB
Control Panel
12■V■power■supply■route
Main Controller PCB
Power ON signal
J20
Control
Panel
Control Panel
control signal
Low-Voltage
Power Supply
PCB
12V Power Supply line
12V Power Supply line
J25
J321
J313
J314
J1118
F-6-14
F-6-15
1. Turn OFF the Main Power Supply Switch.
2. Disconnect and then connect the power plug of the host machine from/to the outlet.
3. Turn ON the Main Power Supply Switch.
No
Replace the Main Power
Supply Switch or harness.
Replace the Low-voltage
Power Supply PCB.
Go to Flow B: Control Panel Check Flow.
Replace the Main Controller Unit.
Replace the Low-voltage
Power Supply PCB.
Replace the harness.
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
No
No
Does the
host machine
start warm-up rotation?
No
(1)
Is the Control Panel
3.3V LED ON?
(2)
Whether 3.3V can be
checked in the Low-voltage
Power Supply PCB
(4)
Whether 12V can be
checked in the Low-voltage
Power Supply PCB
(4)
Whether 12V can be
checked in the Main
Controller PCB
(3)
Is the Main Controller
12V LED ON?
(3)
Whether 3.3V can be
checked in the Main
Controller PCB
F-6-16