JBL JSR675 Owner's Manual

18This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. So if you have a problem, first check this list for a possiblesolution. If the problem persists, consult your authorized JBL service center.If the problem is... Make sure that the:No lights illuminate when Power switch is pressed. • Unit is plugged into a live outlet.No sound is heard. • Speaker selector is set to the desired speakers.• Correct source button has been pressed.• Volume is turned up.• Speakers are connected properly.Dolby Surround does not work on center and rear channels. • Correct surround mode is selected.• Rear and Center levels are turned up.Selecting video component produces sound but no picture. • Video cables are connected properly.The TV picture does not match the sound. • Video sources are properly connected to receiver.• Video/Antenna Switch on TV is set to Video.No output from one or more channels. • Cables are not defective: check/replace speaker or phono cables.• The signal source is operating and providing proper signal output to the JSR675.No center channel output. • Dolby surround or movie mode is turned on.• “Phantom” mode is not active.Tuner sound has a large amount of interference. • The antenna is properly connected.OR, The “Stereo” display is not fully illuminated. • The antenna is properly located.OR, Tuner sound distorts and/or volume level is too low. • The antenna is set in the proper direction.• The antenna is adequate to receive the desired station.Tuner is intermittent or continuously buzzing or hissing. • The unit is away from fluorescent lights, TVs, motors and other electrical appliances.Stations cannot be preset. • After pressing the Memory button, the Preset button is pressed while the “Memory” light is still flashing.Phono sound is too faint, has hum, ringing, or howl. • Turntable cartridge is moving magnet type or step-up transformer is used.• Ground wire from turntable has been connected to ground terminal on receiver.• Cable from turntable is away from power cords and speaker cables.• Turntable is away from speakers.• Turntable is on a stable surface.Troubleshooting

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