Denon AH-GC20 User Manual

Troubleshooting
If the headphones do not operate correctly, first check the following items.
Symptom Cause / Solution Page
The Bluetooth function of the
headphones does not switch
on.
0
Connect the headphones to a computer using the supplied USB cable to charge the battery.
7
Cannot pair a Bluetooth
device.
0
Move the Bluetooth device that you want to connect closer to the headphones.
－
Cannot connect using
Bluetooth.
0
Check that the power of the headphones is switched on.
15
0
Check that the power of the Bluetooth device is on and the Bluetooth function is enabled.
11
0
Check whether the Bluetooth device is in sleep status.
－
0
Pair the devices again.
11
0
Remove the cable from the headphones if the headphones and Bluetooth device are connected using a
cable. The Bluetooth function of the headphones is automatically turned off when the headphones are
connected using a cable.
20
Sound is not output from the
headphones when connected
using Bluetooth.
0
Check that the power of the headphones is switched on.
15
0
Check that the power of the Bluetooth device is on and the Bluetooth function is enabled.
11
0
Select A2DP as the Bluetooth connection profile on the transmitting Bluetooth device. For details, see the
Owner’s Manual of the Bluetooth device.
－
0
Check that audio is being played back on the Bluetooth device.
－
0
Increase the volume. Increase the volume on the Bluetooth device if it is necessary to adjust the volume
on the Bluetooth device.
19
0
Pair the devices again.
11
Contents Preparation Connections Operation Troubleshooting Appendix
Troubleshooting
26

Denon AH-GC20 Specifications

General

Impedance	100 Ω
Driver type	Dynamic
Driver unit	40 mm
Ear coupling	Supraaural
Headphone frequency	5 - 40000 Hz
Maximum input power	1000 mW
Headphone sensitivity	102 dB
Cables included	Micro-USB
Audio adapters included	6.3 mm
6.35 mm connector	No
Bluetooth version	4.0
Connectivity technology	Wireless
Product color	Black, Silver
Wearing style	Head-band

Weight and Dimensions

Weight	275 g