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18.SERVICING - Do not attempt to service this video unit yourself as opening or removing covers may expose you to a dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
19.DAMAGE REQUIRING SERVICE - Unplug this video unit 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 any liquid has been spilled onto or objects have fallen into the video unit.
c.If the video unit has been exposed to rain or water.
d.If the video unit does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions. Improper adjustment of other controls may result in damage and will often require exten- sive work by a qualified technician to restore the video unit to its normal operation.
e.If the video unit has been dropped or the cabinet has been damaged.
f.When the video unit exhibits a distinct change in performance — this indicates a need for service.
20.REPLACEMENT PARTS - When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or those having the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards.
21.SAFETY CHECK - Upon completion of any service or repairs to this video unit ask the service technician to perform safety checks to determine that the video unit is in safe operating order.