AKG K935 User's Manual
Contents
1. on the transmitter Ensure the headphone is switched ON Headphone battery charge level may be too low recharge the battery fully Ensure the TV or the connected audio device is switched ON The volume of headphone may be too low adjust the volume to a moderate level The audio signal input level is too low Increase the volume of the audio source In the unlikely event of a software hang up the device is not reacting anymore you may reset the headphone it by placing the headphone on the charging cradle for 1 minute After that switch it on again and it shall come back to normal operation The transmitter can be reset by unplugging from the power supply for 1 minute DISTORTION gt Ensure the volume level of headphone is set to an appropriate level gt If the headphone is too far from the transmitter move it closer gt If the audio signal input level is too low Increase the volume of the audio source INTERFERENCE gt If you encounter inference from WLAN systems Bluetooth devices or other 2 4 GHz systems we recommend moving the transmitter away from the other device system You AKG K935 scans for free frequency slots constantly If an additional 2 4 GHz broadband source appears a minor interruption might be hearable 10 TECHNICAL SPECIFICATIONS Carrier Frequency Operation Voltage 2 4 GHz Digital Transmitter DC 5V min 250 mA external power adapter Headphone DC 3 7 V 600 mA rechargeable lithium p2. by HARMAN K935 DIGITAL WIRELESS HOME HEADPHONES OPERATING MANUAL K935 Please take a few minutes to read the instructions below carefully before operating the equipment keep and follow the instructions and heed all warnings 1 INTRODUCTION This 2 4GHz Digital Wireless Headphone uses latest digital wireless technology that enables you to enjoy crystal sound stereo music and TV sound anywhere inside your home Simply connect the transmitter to a desired audio source DVD player CD player TV set VCR Hi Fi system or iPod Without complicated wiring and installation the system enables you to enjoy thrilling lifelike sound in minutes 2 COMPONENT PART LIST FIG A B 2 1 HEADPHONE RECEIVER 1 LED 2 Volume Up and Down Control 3 Power button 4 Charging contacts 5 Size adjustment slider 2 2 TRANSMITTER FIG C D 6 Power Button with LED 7 Charging pins 8 Mini USB DC IN socket 9 Attenuation ATT select switch OdB and 8dB 10 3 5mm Audio In socket 11 RCA Audio In sockets 12 Wall mount holes 13 Cable tunnels 2 3 ACCESSORIES 14 RCA to 3 5mm plug cable 15 AC DC Mini USB adaptor 3 INSTALLATION 3 1 TRANSMITTER 1 Connect the supplied AC DC power adaptor 15 to an electrical wall outlet 2 Plug the AC DC power adaptor cable in the mini USB jack located on the bottom of the transmitter The LED 6 will glow green s
3. charging cradle The charging process begins automatically and the LED 1 will glow orange When the charging process is completed the LED 1 will extinguish Charging may take up to 5 hours 7 HINTS AND TIPS 1 When the signal link is interrupted as interference or poor signal reception occurs when out of the operating distance range the headphone will be muted with the LED 1 flashing Move closer to the transmitter 2 If you encounter a poor signal to noise ratio humming in the headphone we urge you to increase the input signal to the transmitter and to lower the volume on the headphone 3 Please be aware that the headphone shuts off if no signal is received for 5 minutes 4 The K935 is designed and tested to withstand interferences from other electronic devices However we suggest placing headphone or transmitter not next to other RF transmitting products such as WLAN devices mobile phones etc 5 When the transmitter is not receiving any audio signal over a longer period of time it will shut of itself 8 WALL MOUNTING You can easily hang the K935 transmitter on the wall Use two screws suitable for your wall material with a screw head between 5 5mm and 9mm Fix the two screws in a distance of 120mm horizontal in the wall Let the screw heads stick out 8 10mm and hang the unit on the wall 9 TROUBLE SHOOTING NO SOUND gt Ensure the AC DC adaptor is fully inserted into the AC outlet and the power connection input
4. ed by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as when the power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus or the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the apparatus To disconnect this apparatus from the AC mains completely disconnect the power supply cord plug from the AC receptacle The mains plug of the power supply cord shall remain readily operable Do not expose batteries to excessive heat such as sunshine fire or the like The packaging can be recycled Dispose of the packaging in a collection recycling system provided for the purpose Observe local legislation relating to waste disposal and recycling Never attempt to recharge conventional dry cells Never use another type of battery or non rechargeable batteries to replace the rechargeable batteries supplied Operate the transmitter with the supplied AC adapter only Check that the AC voltage stated on the AC adapter is t
5. he same as that available in your country Using the transmitter with a different AC adapter makes the warranty void Always switch the headphone OFF after use Never try to open the headphone or transmitter case Use the equipment for the applications described in this manual only AKG can not accept any liability for damages resulting from improper handling or misuse PREVENTION OF HEARING LOSS Caution Permanent hearing loss may occur if earphones or headphones are used at high volume for prolonged periods of time For France the products have been tested to comply with the Sound Pressure Level requirement laid down in the applicable NF EN50332 1 2000 and or EN50332 2 2003 standards as required by French Article L 5232 1 Note To prevent possible hearing damage do not listen at high volume levels for long periods FOR PRODUCTS THAT INCLUDE BATTERIES EU Batteries Directive 2006 66 EC A new battery directive 2006 66 EC on Battery and Accumulator replacing directive entered into force on the 26th September 2008 The directive applies to all types of batteries and accumulators AA AAA button cells lead acid rechargeable packs including those incorporated into appliances except for military medical and power tool applications The directive sets out rules for collection treatment recycling and disposal of batteries and aims to prohibit certain hazardous substances and to improve environmental performance of batteries and all operator
6. lightly 3 You may connect the RCA to mini jack cable 14 two ways If your source device your TV VCR Hi Fi CD MP3 DVD player has RCA Audio out sockets you use the 3 5mm mini jack socket 10 on the K935 transmitter If your source device ipod smartphone e g has a 3 5mm mini jack socket you can turn the cable over and use the RCA Audio in sockets 11 on the K935 transmitter Please do not use both inputs RCA and 3 5mm at the K935 transmitter at the same time If your Audio device has another output socket than RCA or 3 5mm you might need to acquire another cable not included Where possible choose the RCA outputs of your Audio source as preferred option 4 For TV VCR DVD Hi Fi switch the Attenuation 9 to 10dB For portable devices like CD MP3 Players or iPods switch the Attenuation 9 to 0 dB 5 You may remove one or both of the wall mount holes 13 to route the cable to the audio source and power outlet 3 2 HEADPHONE RECEIVER The headphone is set up ready to go so basically no set up action is required from your side 1 The batteries inside the headphone are not user exchangeable 4 OPERATION 41 TRANSMITTER 1 Turn on the audio source TV or audio component to which the transmitter is connected with and push the power button 6 for about 1 second The button will blink green 2 Turn on the headphone by pressing the Power button 3 for approximately 1 second The LED 1 will light up as soon a
7. olymer Frequency Response 16 Hz 22 kHz S N Ratio 85 dB Crosstalk 90 dB Operation Distance typically 30 meter 100 ft Low Latency lt 25ms Transmitter Power 10 mW ERP Equivalent Radiated Power 381 g transmitter 250 g headphone Power consumption lt 0 3 W No load mode of External Power Adapter Weight 11 SAFETY INSTRUCTIONS gt Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install this apparatus in accordance with the manufacturer s instructions Do not install this apparatus near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Use only attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specifi
8. or more than 0 004 lead shall be marked with the chemical symbol for the metal concerned Hg Cd or Pb respectively Please Refer to the below symbol Hg Cd Pb ROHS COMPLIANCE This product is in compliance with Directive 2011 65 EU of the European Parliament and of the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment HARMAN International hereby declares that this equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC ErP 2009 125 EC Directive and RoHS 2011 65 EU Directive The declaration of conformity may be consulted in the support section of our Web site accessible from www akg com CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN THE LIGHTNING FLASH WITH AN ARROWHEAD SYMBOL WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE WITHIN THE PRODUCT S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE SERVICING INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE PRODUCT WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE When the product reaches the end of its life separate the housing electronic
9. s and cables and dispose of all components in accordance with local waste disposal regulations HARMAN 2012 HARMAN INTERNATIONAL INDUSTRIES INCORPORATED ALL RIGHTS RESERVED AKG IS A TRADEMARK OF AKG ACOUSTICS GMBH REGISTERED IN THE UNITED STATES AND OR OTHER COUNTRIES DESIGNED AND ENGINEERED IN AUSTRIA BY AKG MADE AND PRINTED IN CHINA P R C www akg com AKG by HARMAN 61177 X OO 2013 Harman International Industries Incorporated All Rights reserved aAa UVA AKG is a trademark of AKG Acoustics GmbH registered in the United States and or other countries DESIGNED AND ENGINEERED IN AUSTRIA BY AKG MADE AND PRINTED IN CHINA P R C WWW a kg Com
10. s in the supply chain Instructions for Users on Removal Recycling and Disposal of Used Batteries To remove the batteries from your equipment or remote control reverse the procedure described in the owners manual for inserting batteries For products with a built in battery that lasts for the lifetime of the product removal may not be possible for the user In this case recycling or recovery centers handle the dismantling of the product and the removal of the battery If for any reason it becomes necessary to replace such a battery this procedure must be performed by authorized service centers In the European Union and other locations it is illegal to dispose of any battery with household trash All batteries must be disposed of in an environmentally sound manner Contact your local waste management Officials for information regarding the environmentally sound collection recycling and disposal of used batteries WARNING Danger of explosion if battery is incorrectly replaced To reduce risk of fire or burns don t disassemble crush puncture short external contacts expose to temperature above 60 C 140 F or dispose of in fire or water Replace only with specified batteries The symbol indicating separate collection for all batteries and accumulators shall be the crossed out wheeled bin shown below EN In case of batteries accumulators and button cells containing more than 0 0005 mercury more than 0 002 cadmium
11. s the connection is established 4 2 HEADPHONE RECEIVER 1 Turn on the headphone by pressing the Power button 3 for approximately 1 second LED 1 will light up and will start flashing When the signal link between transmitter and receiver is established the green LED 1 will light up steadily Also the transmitter button 6 will glow constantly intensive then 2 Adjust the slider 5 on both sides to fit your head size and place the headphone on your head To obtain the desired sound level adjust the volume control 2 on the headphone 5 PAIRING Under normal conditions your K935 is delivered already paired If the connection cannot be established for some reason the Headphone LED 1 and the Transmitter power button 6 will both flash 1 Make sure transmitter and headphone are on headphone LED 1 and transmitter power button 6 are flashing 2 Now press both power buttons 3 and 6 for about five seconds The headphone LED 1 and transmitter power button 6 will show double flashing until the connection is established 6 CHARGING 1 When the batteries of headphone are at low level the LED 1 turns red Please recharge the headphone as described below If the battery is empty the headphone will shut off automatically 2 To charge the battery in the headphone turn OFF the headphone and the transmitter by pressing the Power button 3 and 6 for about 1 second Place the headphone on the transmitter s
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