20Getting StartedFrontA [OPERATE] Button/IndicatorSwitches operation on or off. Press the button to turnoperation ON and hold down the button to turn operationOFF. The indicator blinks while the recorder is starting up orshutting down. When the starting up operation is complete,the indicator stops blinking and is lit.B [REC] IndicatorLights up during recording.C [HDD] IndicatorLights up when the built-in hard disk drive is accessed.D [WARNING] IndicatorLights up when an error occurs in the hardware.Note:● Error types: A Page 193● How to turn off: A Page 127E [SERIAL1/2] TerminalsFor connecting the communication control terminals of aUSB mouse (sold separately), USB flash memory (soldseparately) or UPS (sold separately).Caution:● Attach the serial port cover supplied with this product ifthis port is not in use.● This product may malfunction due to the presence ofstatic electricity. Remove any static before startingoperation.Note:● Use the SERIAL terminal or [eSATA] terminal on the rearpanel for additional HDD connection. (A Page 21)● For connection of external devices, consult your nearestJVC KENWOOD dealer. You can also check on ourwebsite.Part Names and FunctionsAABBCCDDEE