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V: MAINTENANCE AND SERVICE
5.1 CLEANING
The faceplate and chassis can be cleaned with a soft cloth and mild non-abrasive cleaning solution, such as Windex. Avoid
cleaning powders or scrubbing pads, as these will scratch and dull the paint. Be sure to unplug the unit prior to cleaning.
Do not apply liquid directly to the surface. Dampen the cloth with the cleaning solution and wipe gently. You may wish
to buff the surface lightly with a dry soft cloth.
5.2 DUST REMOVAL
After prolonged use, especially in dusty environments, the heat sinks may become clogged with dust. This will interfere
with cooling and lead to higher temperature operation and reduced life. Dust build-up can be most easily removed by
brushing or directing an air jet between the fins of the heat sinks.
5.3 USER MAINTENANCE
There are no periodical “tune-up” adjustments required; the amplifier should provide stable performance until parts fail
from age. Internal servicing must be referred to qualified personnel. The amplifier may be inspected for loose screws on
the outside. If any loose parts rattle around on the inside when the amp is turned over in all directions, please have it
serviced immediately, as a loose part could lodge in a dangerous place and cause further damage or shock hazard.
5.4 OBTAINING SERVICE
If the amplifier isn’t working properly, please consult the troubleshooting chart in Section 3.9. If proper operation cannot
be restored, the amplifier may require service. This must be performed by qualified technical personnel, to avoid shock
hazard or improper repairs. To obtain the location of the nearest authorized Service Center, please contact your QSC
dealer or the QSC Service Department—1-800-772-2834.
Please note that the Series One warranty does not cover repairs made by non-authorized service personnel, and that
improper repairs may void future warranty coverage.
If the amplifier is returned to the factory for service, you must first obtain an R.A. number (“Return Authorization)
from the QSC Service Department. The amplifier must be sent in the original type shipping carton. If you have not saved
your carton, see if your dealer has one, or call the QSC Service Department to have an empty carton sent for shipping.
The Series One warranty does not cover shipping damage caused by returning an amplifier in the wrong carton.