Panasonic SC-CH750 Operating Instructions Manual

Also see for SC-CH750: Operating instructions

Troubleshooting GuideBefore requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or aminor adjustment on your part may eliminate the problem and restore proper operation.If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the directory ofAuthorized Service Centers (enclosed with this unit) to locate a convenient service center, or consult your dealer for instructions.Problem Probable cause(s) Suggested remedyProblems common to all systemsThere is no sound when thepower is ON.Volume is set too low. Adjust the volume level with the volume control onthe tuner amplifier.The location of the variousmusical instruments is notwell defined.The (+) and (-) connections to one of thespeakers are reversed.Connect the speaker cord correctly.The left and right soundsare reversed.The left and right connections to the speaker arereversed. Connect the speaker cord correctly.The left and right connections to the each unit arereversed. Connect the each unit’s cord correctly.Only one speaker isemitting sound.One of the wires of the speaker cord isdisconnected.Connect the speaker cord correctly.There is no sound when asource is being played.The (+) and (-) wires of the speaker cords areshorted. Switch the system to the standby mode, andreconnect the speaker cords so that they are notshorted.Then switch on the power.While listening to FM broadcastsThere is a “rushing” noiseduring a stereo broadcastwhich is not audible duringa monaural broadcast.The transmitting station is a long distance away. •If you are using an indoor antenna, change to anoutdoor antenna.• If you are using a high-grade outdoor antenna, trychanging the installation location, height, andorientation.You hear excessive noiseduring a stereo broadcast,and occasionally the sounddisappears.The installation location and orientation of theantenna are unsuitable.The stereo indicator of thetuner amplifier flickers anddoes not light completely.The transmitting station is a long distance away.The power of the TV set or VCR is ON. Try switching off the TV set or VCR.The sound during a stereobroadcast is highly distored.There is a building or mountain nearby. [Distortionis caused by interference between the signal fromthe transmitting station (direct wave) and thesignal reflected from the building or mountain(reflected wave).]Use a high-grade outdoor antenna, and install it in agood location, height, and orientation for reception.While listening to MW/LW broadcastsYou hear an unusual beatsound.You are using the system at the same time youare playing a TV set. Switch off the TV set, or use the system farther awayfrom it.You hear a low-frequencyhum.The antenna wire is near the power cord. Separate the antenna wire from the power cord.