528E
2
Operator Safety Summary Chapter 2
Terms
Several notational con ven tions are used in this
manual. Some paragraphs may use Note
, Caution,
or Warning as a heading. Certain typefaces and
cap i tal i za tion are used to identify certain words.
These are:
Note Identifi es information that needs
extra emphasis. A Note
generally
supplies extra information to help
you to better use the 528E.
Caution Identifi es information that, if not
heeded, may cause damage to the
528E or other equipment in your
system.
Warning Iden ti fi es in for ma tion that, if
ignored, may be hazardous to your
health or that of others.
CAPITALS Controls, switches or other markings
on the 528E’s chassis.
Boldface Strong emphasis.
Equipment Markings
AVIS:
NE PAS OUVRIR
Il ne se trouve a l’interieur aucune piece pourvant entre reparée l’usager.
SEE OWNERS MANUAL. VOIR CAHIER D’INSTRUCTIONS.
S’adresser a un reparateur compétent.
RISQUE DE CHOC ELECTRIQUE
No user serviceable parts inside. Refer servicing to qualified service personnel.
CAUTION
WARNING:
TO REDUCE THE RISK OF FIRE OR
ELECTRIC SHOCK DO NOT EXPOSE
THIS EQUIPMENT TO RAIN OR MOISTURE
DO NOT OPEN
RISK OF ELECTRIC SHOCK
The light ning fl ash with ar row head sym bol with in
an equi lat er al tri an gle is in tend ed to alert the user
of the pres ence of uninsulated “dangerous volt-
age” with in the prod uct's en clo sure that may be of
suffi cient mag ni tude to constitute a risk of electric
shock to persons. The ex cla ma tion point with in an
equi lat er al tri an gle is in tend ed to alert the user of the
pres ence of im por tant op er at ing and main te nance
(servicing) instructions in the lit er a ture ac com -
pa ny ing the product (i.e. this manual).
Caution To prevent electric shock, do not use the
polarized plug supplied with the unit with
any extension cord, receptacle, or other
outlet unless the blades can be fully
inserted.
Important Safety Instructions
Please read and keep these instructions. Heed and
follow all warnings and instructions. Install in ac-
cordance with the manufacturer’s in struc tions.
Power Source This product is intended to operate
from a power source that does not apply more than
250 V rms between the power supply conductors or
between either power supply con duc tor and ground.
A protective ground con nec tion, by way of the
ground ing conductor in the power cord, is es sen tial
for safe operation.
Grounding The chassis of this product is grounded
through the grounding conductor of the power
cord. To avoid electric shock, plug the power cord
into a properly wired receptacle before making any
con nec tions to the product. A pro tec tive ground
con nec tion, by way of the grounding conductor in
the power cord, is essential for safe op er a tion. Do
not defeat the safety purpose of the grounding
plug. The grounding plug has two blades and a third
ground ing prong. The third prong is provided for
your safety. When the provided plug does not fi t
your outlet, consult an elec tri cian for re place ment of
the obsolete outlet.
Danger from Loss of Ground If the protective
ground connection is lost, all accessible con duc tive
parts, including knobs and controls that may appear
to be insulated, can render an electric shock.
Proper Power Cord Use only the power cord and
connector specifi ed for the product and your operat-
ing locale. Use only a cord that is in good condition.
Protect the power cord from being walked on or
pinched, par tic u lar ly at plugs, convenience re-
cep ta cles, and the point where they exit from the
apparatus.
Phantom Power To prevent hazard or damage en-
sure that only microphone cables and microphones
designed to IEC-268-15A are connected.
Proper Fuse The user accessible fuse is a part of
the IEC AC inlet connector. The fuseholder accepts
5 x 20 mm diameter fuses. For 117 VAC operation,
the correct value is 0.25A, 250 VAC, standard. For
230 VAC operation, the correct value is 0.125A, 250
VAC, standard.
Operating Location Do not operate this equip-
ment under any of the following con di tions: ex-
plosive at mo spheres, in wet lo ca tions, in inclement
weather, improper or un known AC mains voltage,
or if im prop er ly fused. Do not install near any heat
source such as ra di a tors, heat registers, stoves, or
other apparatus (including am pli fi ers) that produce
heat. Unplug this apparatus during lightning storms
or when unused for long periods of time.
Stay Out of the Box To avoid personal injury (or
worse), do not remove the product covers or panels.
Do not operate the product without the covers and
panels properly installed. Only use ac ces so ries
specifi ed by the manufacturer. Clean only with a
damp cloth.
User-serviceable parts There are no user ser vice -
able parts inside the 421m. In case of failure, refer
all servicing to the factory. Ser vic ing is required
when the 421m has been damaged in any way, such
as when a power supply cord or plug is dam aged,
liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain
or moisture, does not operate normally, or has been
dropped.
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