• Replace the batteries, making sure to orient them
according to the polarity diagram shown.
• Replace the battery compartment cover.
Headphones Operation
The headphones receive two separate channels of audio
using an infrared transmitter from the video screen.
If no audio is heard after increasing the volume control,
verify that the screen is turned on and in the down
position and that the channel is not muted and the
headphone channel selector switch is on the desired
channel. If audio is still not heard, check that fully
charged batteries are installed in the headphones.
UNDERSTANDING YOUR INSTRUMENT PANEL 331
1. Volume Control
2. Power Button
3. Channel Selection Switch
4. Power Indicator
Replacing The Headphone Batteries
Each set of headphones requires two AAA batteries for
operation. To replace the batteries:
4