Instruction/ maintenance manual of the product AH-GC20 Denon
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. AH-GC20 GLOBE CRUISER™ Over-ear Headphones/ Wireless Noise-Cancelling Headphones Owner’s Manual You can print more than one page of a PDF onto a single sheet of paper.
Preparation Unpacking 4 Features 5 Sound quality 5 Functions 5 Telephone Calls 5 Features and functions 6 Charging 7 Using Audio Guidance (Notification Sounds) 9 Connections Bluetooth operation 11 Pai.
Troubleshooting Troubleshooting 26 Appendix Precautions for Use 28 Disposal of these headphones 29 Trademark information 29 Specifications 30 Contents Preparation Connections Operation Troubleshooting.
Thank you for purchasing this product. To ensure proper operation, please read this Owner’s Manual carefully before using the product. Unpacking Unpack your new AH-GC20 and verify that the following items are included. . . . . Quick Guide Precautions on the use of headphones Audio cable (approx.
Features Sound quality 0 These headphones are compatible with a wide range of codecs, including the high sound quality aptX, AAC and SBC. These headphones automatically select the optimum compatible codec for your Bluetooth device (smartphone or tablet) so you can enjoy high-grade wireless sound.
Features and functions . Q1 o i u y e t r q w w q Q0 RL A L/R Indicator B Noise cancelling microphone C Noise cancelling function toggle switch Turns the noise cancelling function on/off. D Charge/NC (Noise Cancell) indicator 0 Blinks red according to the charging status.
Charging When using the headphones for the first time after purchase or when the remaining battery is low, connect the headphones to a computer or a USB to AC power adapter (not included) using the supplied USB cable. . or The Charge/NC indicator blinks during charging.
o Checking the remaining battery power When the power is on (“Turning the power on” ( v p. 15)), press the Call button twice to check the remaining battery power.
Using Audio Guidance (Notification Sounds) You are notified when an operation has completed correctly by a “beep” or “audio guidance”. The default notification sound is a “beep”. You can switch the notification sound using the following procedure.
o Switching the Audio Guidance Language The audio guidance language can be selected from the following languages. (The default audio guidance language is “English”) English, Japanese, Chinese, Ger.
Bluetooth operation Pairing You need to register (pair) a Bluetooth device with the headphones in advance in order to enjoy listening to wireless music or make phone calls. You can connect to a Bluetooth device any time after it has been paired. NOTE Pairing needs to be done again in the following cases.
2 When the headphones power is off, press and hold the control button for approximately 4 seconds . Push 4 Sec 0 The Bluetooth indicator flashes red and blue alternately indicating that the headphones are in pairing registration mode. 3 Select “DENON AH-GC20” from the list of devices displayed on the screen of your Bluetooth device .
4 Playing back music on the Bluetooth device Music played back on the connected Bluetooth device is output from the headphones. 0 If the power is on, turn the power off before pairing. 0 The headphones pairing registration mode is cancelled if pairing is not completed within 3 minutes.
3 The headphones automatically connect via Bluetooth to the Bluetooth device If the device is not connected, select “DENON AH-GC20” from the list of devices displayed on the screen of your Bluetooth device.
Turning the power on Turn on the Bluetooth function of the Bluetooth device that you want to connect to beforehand. 1 Press and hold the headphones control button for approximately 1 second . 1 Sec Push 0 When the pairing information is deleted, the headphones automatically switch to pairing registration mode when the power is turned on.
Wearing the headphones Adjust the slider to the preferred length. . R L NOTE 0 Be careful not to trap your fingers, etc. in the moving parts. 0 Do not pull the slider too forcefully. 0 In order to hear the best quality sound, be sure that the ear pads correctly cover both the left and right ears.
Simultaneously connecting multiple Bluetooth devices (Multipoint function) Two Bluetooth devices can be simultaneously connected to the headphones, but of these only one device can be used to listen to music or make phone calls at any time.
3 Turn on the Bluetooth function of the 1st Bluetooth device, and select “DENON AH-GC20” from the list of devices displayed on the screen . DENON AH-GC20 0 This procedure connects two Bluetooth devices to the headphones.
Listening to music When using the headphones wirelessly, make sure the Bluetooth function is set to ON for the Bluetooth device. (For details, see the Owner's Manual of the Bluetooth device that you connected.) Listening to music using a Bluetooth connection The paired Bluetooth device is controlled using the control button.
0 These headphones are compatible with SCMS-T content security standards. You can use these headphones with SCMS-T compatible mobile phones or devices. 0 In order to listen to music via a Bluetooth connection, the connected Bluetooth device needs to be A2DP (Advanced Audio Distribution Profile) compatible.
Decreasing outside noise (Noise cancell function) Turn the noise cancelling function toggle switch on. . ON OFF The Charge/NC indicator lights white when the switch is turned on.
Conducting phone calls Calls can be made while you are wearing the headphones. You can hear the caller’s voice through the headphones, and your voice is picked up by the built-in microphone in the headphones. The paired Bluetooth compatible mobile phone is controlled using the Call button.
Using the call waiting function If you receive a call while another call is already in progress, you can place the current call (call A) on hold and switch to the new call (call B). NOTE Some of mobile phones may not be compatible with these functions.
Other operations Incoming call detected Answer Press the call button once In standby mode/ During audio playback Voice dial/ Voice activated call Press and hold the call button Call in progress End call Press the call button once Mute on/off Press the call button twice 0 Press the volume button to adjust the volume of the caller’s voice.
Information Airplane use Use the supplied audio cable and conversion plug for aircraft use in order to listen to the on-board audio services on an aircraft.
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.
Symptom Cause / Solution Page Cannot operate the Bluetooth device using the headphones. 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.
Precautions for Use 0 Be sure to read the Owner’s Manual of the device that you want to connect. 0 Check the volume settings when using the headphones on public transport or in public places and make sure you do not disturb people around you. 0 These headphones are not guaranteed to work with all combinations of Bluetooth devices/mobile phones.
Disposal of these headphones The rechargeable battery built into these headphones can be recycled. Contact the Denon Customer Service Center for details on disposing of these headphones. Trademark information . The Bluetooth ® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.
Specifications o Headphone section Type: Dynamic type Drive units: 40 mm Input impedance: 100 Ω/ohms (Power on) Sensitivity: 102 dB/mW Maximum input: 1,000 mW Playback frequency: 5 – 40,000 Hz o Bluetooth section Compatible standards: Bluetooth 4.0 dual mode Transmission power: Max.
o General Operating temperature range: 5 ℃ - 40 ℃ Power supply: DC 3.7 V (internal lithium polymer rechargeable battery) Weight: 275 g z For purposes of improvement, specifications and design are subject to change without notice.
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www.denon.com D&M Holdings Inc. 3520 10367 00ADB 32.
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If you already are a holder of Denon AH-GC20, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Denon AH-GC20.
However, one of the most important roles played by the user manual is to help in solving problems with Denon AH-GC20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Denon AH-GC20 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
