Grass Valley TTV 1707 - Manuel (Page 106)

106 SAFETY INSTRUCTIONS
B1707M00LD
September 2000
THOMSON TTV1707 / CCU DT500
User manual
Grounding
This product is grounded through the power cord. To avoid any risks of electric shock, the
grounding pin must be correctly connected to ground. Prior to applying power, make sure
that the product is correctly referenced with respect to ground.
Closing of units
To prevent any risk of electric shock or fire, make sure that the channel control unit is
properly closed by means of its blanking plates, chassis cover plates, etc.
Fuses
Use only fuses of the type and rating specified on the back of the equipment.
Humidity
To avoid any risk or electric shock, use the product in dry areas only.
Explosive atmosphere
To avoid any risk of electric shock, use the product only in areas free of any risk of explo-
sion (atmosphere and materials).
Intervention
To avoid any risk of electric shock, disconnect the mains prior to performing any work on
the unit. All works hall be performed by qualified personnel.
Access to the equipment internal printed circuit must be reserved for qualified technical
personnel only. Some parts of these circuits are at very high electrical voltages. This elec-
trical hazard is particularly important when the “CCU POWER” unit is extracted from the
Channel Control Unit.
MATERIAL PRECAUTIONS
Power Source
Use the correct type of power source. The voltage range is specified on the CCU rear
panel.
Flush-mounting
To prevent dangerous electric contact between ventilation grids, and to prevent projection
of incandescent or burning particles from the inside of the unit, the unit should be built into
a rack.
Ventilation
To prevent risks of overheating, ventilate the product correctly.