– 6 –1-2. Checking the AC supply voltage and precautionsUse a AC voltmeter or other instrument to check that the supply voltage atthe installation location is inside the following range:) 120 V ±10 %1-3. Cable connection precautions (rear panel)Bear in mind the points listed below when connecting the accessory cables tothe unit’s rear panel. It is recommended that you proceed while referring tothe rear panel connection diagram in the Operating Instructions. (Refer topage 12 of Operating Instructions.)) Connect the keyboard.) Connect the mouse.) Check the names of the connectors on the rear panel to verify thatthe keyboard has not been connected to the mouse connector or themouse has not been connected to the keyboard connector.) Connect the power cord to the socket on the main unit.) Secure the power cord using the clamp.) Refrain from connecting the power plug to the power outlet at thisstage.Note:Not only may the unit fail to operate properly if it has been started up witha supply voltage outside the above range but the software programs anddata pre-installed on the system hard disk inside the unit may bedestroyed as well.Use of an uninterruptible power supply system is recommended if the unitis to be used in unsatisfactory power supply conditions. For details,consult with your dealer.