xii
Safeguards and Notices
Danger
■
Electrical potential is still applied to some internal components even when the
power switch/breaker is in the off position. To prevent electrical shock when
working on this equipment, disconnect the AC line cord from the AC source
before working on any internal components.
■
A residual voltage may be present immediately after unplugging the system
due to slow discharge of large power supply capacitors. Wait 30 seconds to
allow capacitors to discharge before working on the system.
Warnings
■
To reduce the risk of electrical shock, plug each power supply cord into
separate branch circuits employing separate service grounds.
■
Turn the power switches off on both the main and redundant power supplies
before attempting repair to the Control Panel.
■
Heed all warnings on the unit and in the operating instructions.
■
Do not use this equipment in or near water.
■
Verify that all power supply lights are off before removing power supply or
servicing equipment.
■
Disconnect ac power before installing any options.
■
The attachment plug receptacles in the vicinity of the equipment are all to be
of a grounding type, and the equipment grounding conductors serving these
are to be connected to earth ground at the service equipment.
■
This equipment is grounded through the grounding conductor of the power
cord. To avoid electrical shock, plug the power cord into a properly wired
receptacle before connecting the equipment inputs or outputs.
■
Route power cords and other cables so that they are not likely to be damaged.
■
Disconnect power before cleaning. Do not use liquid or aerosol cleaners; use
only a damp cloth.
■
Dangerous voltages exist at several points in this equipment. To avoid
personal injury, do not touch exposed connections and components while
power is on.
■
Do not wear hand jewelry or watches when troubleshooting high current
circuits, such as the power supplies.
■
To prevent damage to equipment when replacing fuses, locate and correct the
trouble that caused the fuse to blow before applying power.
■
During installation, do not use the door handles or front panels to lift the
equipment as they may open abruptly and injure you.
■
To avoid fire hazard, use only components of the the specified type, voltage,
and current rating as referenced in the appropriate parts list for this
equipment. Always refer fuse replacement to qualified service personnel.
■
To avoid explosion, do not operate this equipment in an explosive atmosphere
unless it has been specifically certified for such operation.
■
Have qualified personnel perform safety checks after any completed service.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...