Engl 570 Manual do Operador descarregar pdf (Página 24)

HandlingandCare:

Keep the preamp safe from hard knocks and shocks. Tubes are fragile and tend to

sufferwhenexposedtomechanicalstress!

Let the preamp cool down before you transport it. Ten 10 minutes or so will do to

sparethetubes.

Tubes take some20 seconds towarm up afteryou switchthepower on.Make a habit

ofgivingyourpreampplentyoftimetogettoastybeforeyoustartplaying.

Avoid storing the preamp in damp or dusty rooms to spare jacks, switches and

potentiometers.Ifyou don't usethepreampallthetime,I recommend thatyoudrape

acoveringoverittopreventtheintrusionofdust.

Ifyouinstallyourpreampina19"rack,closetherack'slidwhennotinuseforextended

periods.

Never use caustic or scouring detergents to clean the preamp's housing, front or rear

panels.Useasoft,dampclothorspongewithdilutedsoapsudsorastandardbrandof

milddishwashingliquidinstead.Neverusesolventstheycandissolvethefrontandrear

panel labels. Keep liquids well away from the preamp, particularly the interior of the

housing.

Make sureair can circulate at the two sidesand rear panel of thepreamp to allow for

adequatecooling,whichincreasescomponentlife.

High ambienttemperatures placean additional strain on diversecomponents; soif at

all possible, avoid operating the preamp at temperatures far higher than 30°C for

longer periods. Running the preamp at mains voltages exceeding the nominal mains

inputvoltageoverlongerperiodscanalsoshortencomponentlife.

Replace tubes with selected tubes that satisfy ENGL selection criteria to forestall

microphonic properties,undesirable noise and loss of Gain. Tube replacement is a job

bestlefttoexperiencedandauthorizedspecialists.

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Engl 570 Manual do Operador Página 24