SATO CL4NX - 3 Troubleshooting; Troubleshooting Flowchart; Power Problem

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CL4NX/CL6NX Service Manual
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You can first refer to the Chapter 6 Troubleshooting of CL4NX/CL6NX operator manual to identify the
cause of errors or problems with the printer. If you cannot find the solution to the problem, continue with
the following troubleshooting flowchart.
3.1 Troubleshooting Flowchart
When a problem occurs, you can easily trace the solution with the following troubleshooting flowcharts.
For each problem, the chart shows its symptoms, possible causes, and suggested corrective actions.
3.1.1 Power Problem
3
Troubleshooting
Category
Symptom
Cause Remedy
Maintenance
NO
Power
Is the power
cord connected?
Connect the
power cord
correctly
YES
No power
supply
NO
Is DC
voltage
(5V) OK?
YES
Check DC power
voltage (5V)
Replace the
power supply unit
Check DC power
voltage (3.3V,
1.8V, 1.26V)
Replace the
CONT PCB
Replace the
KB PCB
Refer to 4.1
Checking the
Direct Current
Power Voltage
Refer to 5.7
Replacing the
Power Supply Unit
Refer to 4.1
Checking the
Direct Current
Power Voltage
Refer to 5.5
Replacing the Main
(CONT) PCB
Refer to 5.6
Replacing the KB
PCB