Panasonic · CS-Z
A short beep indicates that the sound confirmation for remote control commands has been turned off. This is a setting that can be toggled.
Click steps to track your progress.
Press the Auto OFF/ON button continuously for more than 16 seconds to enter standby condition.
Press the Auto OFF/ON button again to toggle the sound.
A short beep means it's OFF, a long beep means it's ON.
The setting will restart a 20-second counter after being toggled.