Link electronic MC-6 - Manual (Page 32)

32
Basic Troubleshooting Basic Troubleshooting
A A summary of fault conditions and their causes and remedies are listed below.
The MC-6 Multi-Channel Power Amplifier can produce high power levels that, without well-designed protection circuitry, could damage
loudspeakers. Therefore, most fault conditions will result in the MC-6 reverting to Standby Mode.
Condition: Condition: Cause: Cause: Remedy: Remedy:
Front panel STANDBY/POWER BUTTON does not
illuminate after pressing, amplifier operates
normally: Light bulb defective. Remove STNADBY/POWER BUTTON from front panel
and replace bulb located under button. Use
replacement bulb kit and instructions supplied by
your dealer.
Front panel STANDBY/POWER BUTTON lamp does not
illuminate after pressing and amplifier does not
operate normally. Incorrect power connections or circuit breaker
positions on rear panel of amplifier. Review Installation/Rear Panel Power Connections
section of Owner’s Manual.
Abnormal Operation of the MC-6 internal circuitry. Contact your dealer immediately.
Front panel STANDBY/POWER BUTTON reverts to
Standby Mode during listening but can be returned
to normal operation: Excessive sub-sonic or DC signals produced by
source components. Repair or replace source component. Identify and
correct abnormal conditions such as low frequency
rumble and/or acoustic feedback caused by
phono playback (if applicable).
Severe clipping of amplifier circuitry. Reduce volume slightly or use higher efficiency
loudspeakers.
AC MAINS CIRCUIT BREAKER switches OFF or will not
remain ON: AC mains voltage too high for amplifier. Consult your dealer immediately to have the
amplifier reconfigured for the proper AC mains
voltage.
Abnormal operation of amplifier internal circuitry. Contact your dealer immediately.
50/60 Hz buzz noise in loudspeakers: Ground loop condition created between
components in system. Use balanced system configuration if possible.
Inspect interconnect cables for poor connection or
termination.