Notice SONY MDR-IF230

« overed in this manual, please consult your nearest Sony dealer. Be sure to bring the headphones and the transmitter to your Sony dealer when requiring repair work is needed. Troubleshooting No sound/Muffled sound /Turn on the transmitter first, then put on the headphones. /Check the connection of the audio/video equipment or the AC power adaptor. /Check that the audio/video equipment is turned on. /Turn up the volume on the connected audio/ video equipment, if the transmitter is connected to the headphones jack. (Around level 5 or 6 on the volume control should be appropriate.) /The mute function has activated. •Check if there is any object between the transmitter and the headphones. •Use the headphones near the transmitter. •Change the position and angle of the transmitter. /The headphones’ power indicator light is weak or turned off. nReplace the headphone battery. Distortion /If the transmitter is connected to the headphones jack, turn down the volume of the connected audio/video equipment. (Around level 5 or 6 on the volume control should be appropriate.) /The headphones’ power indicator light is weak or turned off. nReplace the headphone battery. Loud background noise /Move closer to the transmitter. As you move away from the transmitter, more noise is likely to be heard. This is inherent to infrared ray communication and does not mean that there is a problem with the unit itself. /Check that there is no object between the transmitter and the headphones. /Check that the infrared sensors are not covered with your hands or hair. /Change the position or angle of the transmitter. •The headphones are used by a window where the sunlight is too strong. nDraw the curtains/blinds to shut out the direct sunlight, or use the headphones away form sunlight. /If the transmitter is connected to the headphones jack, turn up the volume of the connected audio/video equipment. (Around level 5 or 6 on the volume control should be appropriate.) /The headphones’ power indicator light is weak or turned off. nReplace the headphone battery. WARNING To prevent fire or shock hazard, do not expose the unit to rain or moisture. To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only. WARNING You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this equipment. Owner’s Record The model number is located on the headphone housing. The serial number is located on the inner side of the headband. Record these numbers in the spaces provided below. Refer to them whenever you call upon your Sony dealer regarding this product. Model No. MDR-IF230 Serial No. Welcome! Thank you for purchasing the Sony MDR-IF230 Cordless Stereo Headphones. Before operating the unit, please read this manual thoroughly and retain it for future reference. Some features are: •These cordless headphones are ideal for those already used to the Sony Cordless Stereo Headphones system. Please use the same type batteries you have in your own model. •Cordless headphones that allows you to listen to a program free from the restriction of a cord. •Broad horizontal listening area that gives you superb sound virtually anywhere in the room. •Self-adjusting headband that fits to your head perfectly. •The headphones power turns on and off automatically every time you put the headphones on... »