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4-2 Installation & Maintenance
VisuaLink 128/384 General Description
Maintenance Requirements
There are no user serviceable (see
Note
) components, modules, or
circuits inside the VisuaLink units. If experiencing problems, follow
these guidelines:
• Ensure a power source is connected to the VisuaLink unit and the
power control is set to on.
• Check all connections to the VisuaLink unit. Sometimes the wrong
cable may be connected or perhaps loosely plugged-in.
• Make sure all cables used in a VisuaLink configuration are working
properly, with no broken wires or connectors.
• Ensure all settings and parameters for VisuaLink operation are
correctly set via the on-screen menus.
• Verify the VisuaLink unit has adequate ventilation. (see previous
section-- Installation Requirements)
Note:
A user can unpgrade a VisuaLink 128 to a VisuaLink 384.
Refer to the VisuaLink Quick Installation Guide, Stock #
0293885.
If problems still exist after completing the maintenance guidelines,
contact your NEC representative or the NEC Technical Assistance
Center.