Hitachi HV-D27A 用户手册

 

C

 

 
19. Servicing

   

Do not attempt to service this product yourself as 
opening or removing covers may expose you to 
dangerous voltage or other hazards.  Refer all 
servicing to qualified service personnel. 

 

Unplug this product from the wall outlet and 
refer servicing to qualified service personnel 
under the following conditions: 
a.When the power-supply cord or plug is 

damaged. 

b.If liquid has been spilled, or objects have fallen 

into the product. 

c. If the product has been exposed to rain or 

water. 

d.If the product does not operate normally by 

following the operating instructions.  Adjust 
only those controls that are covered by the 
operating instructions as an improper 
adjustment of other controls may result in 
damage and will often require extensive work 
by a qualified technician to restore the product 
to its normal operation. 

e. If the product has been dropped or damaged in 

any way. 

f. When the product exhibits a distinct change in 

performance-this indicates a need for service. 

 

When replacement parts are required, be sure the 
service technician has used replacement parts 
specified by the manufacturer or have the same 
characteristics as the original part. 
Unauthorized substitutions may result in fire, 
electric shock, or other hazards. 

 

Upon completion of any service or repairs to this 
product, ask the service technician to perform 
safety checks to determine that the product is in 
proper operating condition. 

 

The product should be mounted to a wall or 
ceiling only as recommended by the 
manufacturer. 

 

The product should be situated away from heat 
sources such as radiators, heat registers, stoves, 
or other products (including amplifiers) that 
produce heat

.