About the internal hard disk drive64About the internal hard disk driveThe internal hard disk drive (HDD) is very sensitive.Operate the device in accordance with the followinginstructions to avoid hard disk drive faults. Importantrecordings should be backed up on external media toavoid accidental data losses.Note Do not move the device during operation. Dampness inside the device can condense andcause the hard disk drive to malfunction. When the device is switched on, never removethe mains connector plug from the socket orinterrupt the power supply by tripping the safetyswitch. Do not move the device immediately afterswitching it off. To move the device carry out thefollowing steps.1. Wait at least two minutes after the OFFnotification (device display).2. Unplug from the mains.3. Move the device. If there is a power cut whilst the device isoperating, data on the hard disk drive can belost. Use a UPS. The hard disk drive is very sensitive. Improperoperation or an unsuitable environment coulddamage the hard disk drive after a number ofyears of operation. Indications of this areplayback stopping unexpectedly and visiblemosaic effect in the image. Under certaincircumstances there is no indication of adefective hard disk drive. If there is a defect, no playback of recordings ispossible. In this case the hard disk drive mustbe replaced