Tektronix Grass Valley 4000, Installation And Service

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Section 4 — Maintenance
Control Panel Servicing
The following section covers maintenance of the Control Panel in the areas listed
below.
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Control Panel Servicing Precautions
■
Control Panel Circuit Board Locations
■
Replacing Control Panel Power Supplies
Control Panel Servicing Precautions
The following servicing procedures provide general precautions and procedures
for removal and replacement of typical types of components and assemblies in
either the Model 4000-2 or Model 4000-3 control panels. Detailed procedures are
provided only where a component or module is unique or requires special
handling, tools or test equipment.
CAUTION
Many of the circuit modules in the Control Panel are sensitive to static discharge.
Failure to use proper static-control procedures while working on circuit modules
may cause data loss and/or electrical destruction of static-sensitive devices.
CAUTION
Do not attempt component-level field repair on these circuit boards unless directed
to do so. Use of improper tools or equipment to repair surface mount components
and multi-layer circuit modules could result in potentially expensive damage to your
system.
WARNING
Unless specifically directed to do otherwise by a maintenance procedure,
turn power off before removing or repairing any circuit module or assembly
in this control panel.
Before working on any power supply assembly, turn off the power and
disconnect the power cord from the AC power source.