Sony DSR 250 Operating Instructions - Page 12

Step 2 Preparing the power supply Avoiding breaks in operation due to dead batteries If you use both an internal battery pack and an external battery connected to the DC IN 12V connector at the same time, you can avoid breaks in operation due to the dead batteries. When the external battery begins to fail and an internal battery pack is installed Remove the DC output cable of the external battery from the DC IN 12V connector. The power source will switch to the internal battery pack. When the external battery begins to fail and an internal battery pack is not installed First install a fully charged internal battery pack to the camcorder, then remove the DC output cable of the external battery from the DC IN 12V connector. The power source will switch to the internal battery pack. To use an external battery again, connect a fully charged external battery to the DC IN 12V connector before removing the internal battery pack. The power source will switch to the external battery. Continuous operation when operating with only an internal battery pack First, connect a fully charged external battery to the DC IN 12V connector, then change the internal battery. Notes •Whenever an internal battery pack is installed and an external battery is connected to the DC IN 12V connector, the external battery is always used as the power source. •There may be some noise on the video or audio signal at the instant the power sources are switched. •When changing the battery pack, make sure that the POWER switch is set to OFF. •When using the two NP-1B battery packs, be sure to change both of them at the same time. 12