38Video Head CleaningThis unit is equipped with an auto head cleaning function, which automatically reduces theamount of dirt on the video heads. However, in order to enhance the unit’s reliability, it isrecommended that the video heads be cleaned every day. Use a cleaning fluid designated bythe unit’s manufacturer.CondensationThe same principle by which droplets of water form on a window pane of a heated room isresponsible for the formation of condensation inside the unit.Condensation occurs in the unit or tape when it is moved from one location to another wherethere is a significant difference in temperature and humidity.More specifically, it forms:O When the unit (or tape) is moved to a very humid location where the air is full of steam, or to aroom immediately after it has been heatedO When the unit (or tape) is abruptly moved from an air-conditioned location to a very warm orvery humid locationWhen moving the unit to the kind of location described above, do not turn on its powerimmediately but leave it standing for about 10 minutes. If condensation has formed inside theunit, an error message (– – d – –) will light up on the counter display, and the cassette tape will beautomatically ejected.Leave the power on, and wait until the error message is cleared.MaintenanceBefore proceeding with maintenance, set the power switch to the OFF position, and disconnectthe power cord from the power outlet. Make absolutely sure that you grasp the power plug whendisconnecting the power cord.Use a soft cloth to clean the cabinet. To remove stubborn dirt, dilute some kitchen detergent,soak a rag in the solution, wring it out well, and use it to wipe away the dirt. Wipe up anyremaining moisture using a dry cloth. Do not use paint thinners or benzine.