Related To Headphone

Symptom	Check Item		Possible malfunction location / Action to take
Audio cannot be heard from headphone.	Turn ON the rear display. Switch the slide switch on the left side of headphone.	Audio cannot be heard.	Check power supply of headphone.
Headphone cannot be turned ON.	Battery polarity. Battery poor contact Battery replacement	Power is ON. (Power indicator lamp: ON)	This is not a malfunction.
Headphone cannot be turned ON.		Power cannot be turned ON. (Power indicator lamp: OFF)	Replace headphone.