Panasonic FP-M Hardware Manual page 128

6-2. Troubleshooting
4 4 Input condition: the input indicators are OFF
Check the wiring of the input devices.
Check that the power is properly
supplied to the input terminals.
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• If the power is properly supplied to the input terminal, there is probably an abnormality
in the FP-M's internal circuit.
Please contact your dealer.
• If the power is not properly supplied to the input terminal, there is probably an
abnormality in the input device or input power supply.
Check the wiring again.