Sennheiser WiCOS User Manual

Page of 92
Important safety instructions
2
Important safety instructions
Read this instruction manual.
Keep this instruction manual. Always include this instruction manual 
when passing the products on to third parties.
Heed all warnings and follow all instructions in this instruction manual.
Refer all servicing to qualified service personnel.
 
Servicing is required if the products have been damaged in any way, 
liquid has been spilled, objects have fallen inside, the products have 
been exposed to rain or moisture, do not operate properly or have been 
dropped.
WARNING: To reduce the risk of fire or electric shock, do not use the 
products near water and do not expose them to rain or moisture. Do 
not place objects filled with liquids, such as vases or coffee cups, on the 
products.
Only use the required mains units.
Unplug  the  mains  units  from the wall socket 
– to completely disconnect the devices from the mains, 
– during lightning storms or 
– when unused for long periods of time.
Only operate the mains units from the correct type of power source 
(see page 83).
Ensure that the mains units are
– in a safe operating condition and easily accessible,
– properly plugged into the wall socket,
– only operated within the permissible temperature range (see 
– not covered or exposed to direct sunlight for longer periods of time 
in order to prevent heat accumulation (see page 84).
Do not block any ventilation openings. Install the products in 
accordance with the instructions given in this instruction manual.
Do not install the products near any heat sources.
Only use attachments/accessories specified by Sennheiser.
Overloading
Do not overload wall outlets and extension cables as this may result in fire 
and electric shock.
Replacement parts
When replacement parts are required, be sure the service technician uses 
replacement parts specified by Sennheiser or those having the same 
characteristics as the original part. Unauthorized substitutions may result 
in fire, electric shock, or other hazards.
Service and care
No user serviceable parts inside! Do not attempt to service devices yourself 
as opening or removing covers may expose dangerous voltage or other 
hazards. Refer all servicing to qualified service personnel.
Only use a slightly damp cloth to clean the devices. Do not use any 
cleansing agents or solvents.