Crest Audio CPX 3800 owner manual Important precautions

important precautions

1 Save the carton and packing materi- als! Should you ever need to ship the unit, use only the original factory pack- ing.

	For replacement packaging, call Crest
	Performance’s	Customer	Service
	Department directly.
2	Read all documentation		before
	operating your equipment. Retain all
	documentation for future reference.
3	Follow all instructions printed on
	unit chassis for proper operation.
4
	Never hold a power switch or cir-
	cuit breaker in the "ON" position
	if it won’t stay there by itself!
5	Do not use the unit if the electrical
	power cord is frayed or broken.
	The power supply cords should be
	routed so that they are not likely to be
	walked on or pinched by items placed
	upon or against them.
6	Always operate the unit with the
	AC ground wire connected to the
	electrical system ground. Precautions
	should be taken so that the means of
	grounding of a piece of equipment is not
	defeated.
7	Damage caused by connection to
	improper AC voltage is not cov-
	ered by any warranty. Mains voltage
	must be correct and the same as that
	printed on the rear of the unit.
8	Do not ground any hot (red) terminal.
	Never connect a hot (red) output to
	ground or to another hot (red) output!
9
	Power down and disconnect units
	from mains voltage before making
	connections.
0	Do not drive the inputs with a
	signal level	greater than that

required to enable equipment to reach full output.

¡Do not run the output of any ampli- fier channel back into another channel’s input.

Do not parallel- or series-con- nect an amplifier output with any other amplifier output.

Crest Performance is not responsible for damage to loudspeakers for any reason.

ÔDo not connect the inputs or outputs of amplifiers to any other voltage source, such as a battery, mains source or power supply, regardless of whether the amplifier is turned on or off.

£Connecting amplifier outputs to oscilloscopes or other test equip- ment while the amplifier is in bridged mono mode may damage both the amplifier and test equipment!

¢Do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid.

ˆDo not block fan intake or exhaust ports.

Do not operate equipment on a surface or in an environment which may impede the nor- mal flow of air around the unit, such as a bed, rug, weathersheet, carpet or completely enclosed rack.

§If the unit is used in an extremely dusty or smoky environment the unit should be periodically blown free of foreign matter.

¶Do not use the unit near stoves, heat registers, radiators or other heat-producing devices.

ƒThe equipment power cord should be unplugged from the outlet when left unused for a long period of time.

Service Information

Do not remove the cover! Removing the cover will expose you to potentially dangerous voltages.There are no user-serviceable parts inside.

Equipment should be serviced by qualified service personnel when:

A.The power supply cord or the plug has been damaged.

B.The equipment has been exposed to rain.

C.The equipment does not appear to oper- ate normally or exhibits a marked change in performance.

D.The equipment has been dropped or the enclosure damaged.

To obtain service:

contact your nearest Crest Performance Service Center, Distributor, Dealer or Crest Performance at 601.486.2000 USA or visit www.crest-performance.com for additional information, email techserve@crestaudio.com

This symbol is used to alert

the operator to follow important procedures and precautions detailed in documentation.

This symbol is used to warn opera- tors that uninsulated “dangerous voltages” are present within the equipment enclosure that may pose a risk of electric shock.