Go to page of
A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Denon AH-GC20, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Denon AH-GC20 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Denon AH-GC20. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Denon AH-GC20 should contain:
- informations concerning technical data of Denon AH-GC20
- name of the manufacturer and a year of construction of the Denon AH-GC20 item
- rules of operation, control and maintenance of the Denon AH-GC20 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Denon AH-GC20 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Denon AH-GC20, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Denon service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Denon AH-GC20.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Denon AH-GC20 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
-
Page 1
. 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. Contents Preparation Connections Operation Troubleshooting Appendix 1[...]
-
Page 2
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 Pairing 11 Registering (Pairing) and connecting a Bluetooth device 11 Reconnecting paired devices 13 Deleting pairing information 14 Turning the power on[...]
-
Page 3
Troubleshooting Troubleshooting 26 Appendix Precautions for Use 28 Disposal of these headphones 29 Trademark information 29 Specifications 30 Contents Preparation Connections Operation Troubleshooting Appendix 3[...]
-
Page 4
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. 1.3 m) USB cable (for charging: Approx. 0.5 m) . . [...]
-
Page 5
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. Additionally, aptX is Low Latency compatible so you [...]
-
Page 6
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. ( v p. 7) 0 Lights white when the noise cancelling function is on. ( v p. 21)[...]
-
Page 7
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. It takes approximately 3 hours to charge the headphones. (The duration time dif[...]
-
Page 8
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. . R L Remaining battery Indicator Beep sound 90 – 100 % Blinks four times Four times 60 – 89 % Blinks three times Three times 30 – 59 % Blinks twice Twice 10 – 29 % Blinks onc[...]
-
Page 9
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 to Audio Guidance Mode 1 End the audio playback or phone call on connected Blu[...]
-
Page 10
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, German, French, Italian, Spanish 1 End the audio playback or phone call on connected Bluetooth device, or turn off the Bluetooth function of the connecte[...]
-
Page 11
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. 0 When 9 or more devices have been paired wi[...]
-
Page 12
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 . DENON AH-G[...]
-
Page 13
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. In this case, press and hold the control button for more than 5[...]
-
Page 14
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. . DENON AH-GC20 0 The Bluetooth indicator on the headphones lights blue for approximately 5 seconds when the Bluetooth connection is comple[...]
-
Page 15
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. 0 A beep s[...]
-
Page 16
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. If there are gaps between your ears and the headphon[...]
-
Page 17
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. It is convenient to connect devices that you use frequently so that you do not need to re-connect each time y[...]
-
Page 18
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. o Switching Bluetooth playback devices 1 Stop or pause playback on the current playback device 2 Start playback on the device[...]
-
Page 19
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. NOTE When the head[...]
-
Page 20
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. (*) 0 In order to control playback on the [...]
-
Page 21
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. Contents Preparation Connections Operation Troubleshooting Appendix 21[...]
-
Page 22
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. . When the headphones are connected using the audio cable[...]
-
Page 23
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. 1 Press the Call button once while the call is in progress. 0 This places the current call (call [...]
-
Page 24
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. 0 The co[...]
-
Page 25
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. NOTE 0 The supplied conversion plug may not be usable depending on the type of aircraft. 0 Do not use these headphones when the use of electric devices on the aircraft is prohibited, or when th[...]
-
Page 26
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[...]
-
Page 27
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. 20 0 The headphones are reset when th[...]
-
Page 28
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. 0[...]
-
Page 29
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. and any use of such marks by D&M Holdings I[...]
-
Page 30
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. transmission power 10 mW (Class 1) Compatible profiles: A2DP/AV[...]
-
Page 31
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. Contents Preparation Connections Operation Troubleshooting Appendix 31[...]
-
Page 32
[...]
-
Page 33
www.denon.com D&M Holdings Inc. 3520 10367 00ADB 32[...]