I purchased an AW 771 set in 'as is' condition which on arrival produced output only from one side. Repair was effected by removing 8 phillips screws, 4 from each side, concealed under the ear-surrounding doughtnut-shaped cushions. To expose those screws, the ear cushions must be pushed from their center toward the outside. Black screws in back holes surrounded by black acoustically-transparent cloth does not make them obvious. I used a volt-ohm meter to find a discontinuity at a failed solder connection.

Resoldered that connection, rechecked electrical continuity to be certain all connections were good. Tiziano Terzani Un Indovino Mi Disse Ebook Login. Tested with batteries installed using an audio input. Both sides produced sound. Replaced screws and they have performed very well since then. I hope this Model AW771 experience is helpful in restoring your AW-721 to working order. John Answered on Feb 13, 2008.

• Thank you for choosing the AR Brand 900MHz Wireless Headphones. Before attempting to use your headphones, please remove all parts from this package and read the installation and usage instructions carefully. * Range may vary by environment and hookup. • HEADSET SAFETY Follow these precautions for safe usage of your wireless headphones.

900 MHz wireless stereo headphones with range of up to 300 feet Transmits through walls, floors, and ceilings, inside or outside.

These wireless headphones have been designed for residential use and should not be used for industrial purposes. The headphones should be installed and used in accordance with the instructions contained in this manual. • Warranty....11 INTRODUCTION Congratulations on your purchase of this wireless headphone system. Astaro Security Gateway Keygen Idm. The AW722/AW772 utilizes wireless, radio frequency transmission (900 MHz). The headphones are induction recharged using an electric field and incorporate Phase Lock Loop (PLL) technology, which offers three channels for radio transmissions.

• For stand-alone functioning, your wireless headphones must be powered by rechargeable batteries (included). The rechargeable batteries must be installed into the battery compartment and recharged before use. (See Battery Installation and Information, page 6). Fine tuning control (AW722: knob) (AW772: button) Volume control On indicator On/off button. • RECHARGING THE HEADSET To recharge the headset unit, place the headphones into the recharging cradle/transmitter with the charge indicator facing to the front. It is important that the headphones are placed in a completely vertical position, not leaning to either side. If the headphones are placed correctly, the charge indicator light on the headphones illuminates.