Sennheiser Set 900 Instructions for use - Page 28

If a problem occurs ... If a problem occurs ... The transmitter does not switch on Possible cause Solution Is the mains unit Check the connection of the mains connected correctly? unit to the transmitter and to the mains (see page 10). Is the sound source Switch your sound source on. switched on? Is the volume of the Set the volume on your sound sound source suffi- source to a medium value. cient? Is the transmitter set to operating mode 2 (see page 28)? Take the receiver out of the charging compartment. The transmitter automatically switches on. You cannot hear anything Possible cause Solution Is there a free line of sight between receiver and transmitter? Remove obstacles in the light path between receiver and transmitter. Is the receiver still within the transmitter's range? Move the receiver closer to the transmitter. Are transmitter and Avoid exposure to direct sunlight. receiver exposed to direct sunlight? Are all connectors Check the connection between the connected correctly? transmitter and your sound source (see page 7). Is the operation indicator C lit? Check if the transmitter is switched on (see page 11). Is the transmitter set up the wrong way round? Set up the transmitter so that the cables are guided away from the receiver (see page 6). 24