Troubleshooting & maintenance – Lexicon CX User Manual
Page 18
Troubleshooting & Maintenance
Lexicon
3-2
TROUBLESHOOTING
No front panel LEDs are lit.
1. Make sure the unit is plugged in and the rear panel power
switch is set to on.
The red Standby LED is flashing rapidly.
1. Power the amplifier off. Allow the amplifier to cool before
powering it on again.
2. Check the incoming line voltage. It should not be more than
10% below the mains supply voltage indicated in the
Specifications (page A-2).
One or more channels is not passing audio, and the
corresponding channel status LED is flashing blue.
1. Reduce system volume level.
2. Power the amplifier off. Allow the amplifier to cool before
powering it on again.
3. If the problem persists after the amplifier has cooled,
contact an authorized Lexicon dealer or Harman Specialty
Group Customer Service @ www.harmanspecialtygroup.com
or 781-280-0300.
The standby button does not appear to be functioning.
1. Make sure the rear panel power switch is set to on.
2. Make certain the rear panel TRIGGER INPUT switch is set to
OFF.
One or more channels is not passing audio, but the
corresponding channel status LED is lit blue.
1. Reduce system volume level.
2. Make sure the UNBAL/BAL switch is set to the connector being
used (UNBAL for RCA and BAL for XLR).
Audio sounds out-of-phase.
1. Check to ensure proper speaker wiring.
A humming sound is present in the audio.
1. Set the GROUND LIFT switches to ON.
One or more channels is outputting distorted sound.
1. Reduce system volume level.
2. Make sure speakers have compatible impedance ratings (see
page 2-5).
The TRIGGER INPUT is connected to an external device, but the
amplifer does not power on and off with the external device.
1. Make sure the TRIGGER INPUT switch is set to ON or DELAY.
The amplifier and other electrical devices in the listening room
suddenly lose power.
1. Reset the circuit breakers for the affected device(s).
If all else fails . . .
1. Contact an authorized Lexicon dealer.
2. Contact Harman Specialty Group customer service @
www.harmanspecialty group.com.