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8B. Service
- Must be performed by a technician -
8B-3
Troubleshooting
z
To avoid electric shock, accidents or injuries to yourself or other people, or damage to the electronic
circuits, be sure to turn off the power switch before starting work.
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If the problem is not described in “8B-3 Troubleshooting” or the problem persists despite taking
the appropriate action, turn off the power switch immediately to stop operation, and contact your
distributor. Continuing operations may result in an accident.
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Before checking for a malfunction, fi rst make sure that all the connectors are
connected securely.
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Never perform a conductivity check of the boards with a tester or any other tool.
The IC may be damaged by the internal voltage of the tester.
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When sending parts for repair, be sure to pack them properly. Particularly when
sending the main PC board, wrap the part in sponge or air bubble wrapping before
packing it in a cardboard box to make sure that the part is not exposed to external
force.
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