Bose QuietComfort 15 Owner's guide - Page 8

TAB 8, 16 TAB 7, 15 TAB 6, 14 TAB 5, 13 TAB 4, 12 TAB 3, 1E1nglish TAB 2, 10 English Reattaching the earcup cushions If a cushion becomes partially or completely detached: 1. Push its mounting rim back into the earcup. 2. Press around the edge of the mounting rim, making sure it snaps into place under all eight tabs around the earcup. Replacement parts and accessories You can purchase accessories from your Bose dealer, at global.Bose.com, or by placing an order over the phone. See the inside back cover for contact information. Troubleshooting Problem What to do No noise reduction Low or no volume Crackling noise; intermittent loss of noise reduction Low rumbling sound Volume too high • Make sure the headphones power is switched on and the battery light indicator is illuminated. • Replace the battery. • Make sure the audio source is on and the volume is turned up. • Set LEVEL switch to HI. • Check the headphones cord connection at the source and the earcup. • Check the headphones cord connection at the source and the earcup. • Replace the battery. • Adjust the fit of the headphones on your ears. • Make sure no foreign objects are inside the earcups. • Make sure port holes are not blocked • Turn the source volume down. • Set LEVEL switch to LO. 6