6 TROUBLESHOOTING

P.26

6.2Problem: No Sound

Indication: On LEDs not lit Clip LEDs not lit

Check AC plug.

Confirm that AC outlet works by plugging in another device.

Indication: On LEDs lit

Signal LED not lit

Make sure the signal source is operating and try another cable. Check position of Volume Pots.

Indication: On LEDs lit

Signal LEDs responding to signal level

Check the speaker wiring for breaks.

Try another speaker and cable.

Indication: On LED(s) sequence

The amplifier is in protective muting. Refer to On LED flashing sequences table to find out the cause for the mute.

Overheating will cause protective muting.

If the fans aren’t running the amplifier requires servicing

6.3Problem: No Sound or Sound Is Too Low

Indication: On LED not or sporadically lit

Signal LED not lit Clip LED lit

Under Impedance Limiter is active.The load impedance is abnormally low or shorted.

Unplug each speaker one-by-one. If the On LED indicates normally when you disconnect a cable, that cable or speaker is shorted.

Take care not to use too many speakers in parallel, which would result in an impedance that is too low for normal operation!

USER MANUAL

VORTEX 6, 4, 2.6 and 200V

Indication: On LED(s) sequence

Please refer to the On LED flashing sequences table to find out which protection is active.High temperature will cause an attenuation of output level! DC will cause the amp to mute or shut down.

If the On LED sequence indicates “DC, Input Signal Fault”, switch off the VORTEX and unplug the amp to disconnect it from the signal source. If the On LED shows the same sequence when the VORTEX is switched on again, the amp will need to be serviced by a qualified technician.

All other On LED sequences that shut down or mute the VORTEX indicate a serious internal fault. At this point, turn the VORTEX off, remove AC power and have the amplifier serviced by a qualified technician.

6.4 Problem: No Channel Separation

Check the mode indicators on the front panel and make sure the mode selector on the rear panel is in the Stereo-position.

Make sure other equipment in the signal path such as mixers and preamps are set for stereo, not mono.

6.5Problem: Distorted Sound

Indication: On LED lit

Signal LED responding to signal level Clip LED lit only green

A faulty speaker or a loose connection could cause this. Check the wiring and the speakers systematically (i.e. step by step) and replace them if necessary.

The signal source might be clipping. Keep the VORTEX volume pots at least halfway up so that the source does not have to be overdriven.

Keep the VORTEX Volume Pots at least halfway up and try changing input sensitivity from 1,4 V to 32 dB or 26 dB with the Gain Selector on the rear.