Sennheiser ASA 3000 Instructions for Use - Page 9

Trouble shooting The LED POWER » does not light up The unit is not powered. Disturbed reception or no reception Possible causes: y Transmitting antennas are not within the reception area y Transmitters or receivers are not turned on y Transmitter batteries are not inserted or batteries are ¸ low y The antennas are not connected correctly y The connecting cables are defective y Too high cable attenuation due to too long antenna cables or wrong type of antenna cable y The selected transmission and receiving frequencies are not within the frequency window of the selective input modules (optional) and antenna boosters (optional) y When using active antennas or antenna boosters, the supply voltage must be turned on (see "Connecting the antennas" on page 6). The two LEDs DC FEED ANT A ³ and DC FEED ANT B · light up green. If the LEDs do not light up even though the two switches DC-Feed ANT A and DC-Feed ANT B ¸ are set to position "ON", the antenna inputs are short-circuited. 9