Adcom GFA-555MS WheneverthePOWERswitchonthefrontpanelistur, nedonandtheamplifierisenergized, 125V

Models: GFA-555MS

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WheneverthePOWERswitchonthefrontpanelistur

WheneverthePOWERswitchonthefrontpanelistur

nedonandtheamplifierisenergized,

thePOWERLEDwillglow.Ifturningontheamplifie

rdoesnotcausethePOWERLEDto

glow,itmaybeanindicationthattheACLINEFUSE

isblown.UnplugtheACLINECORD

fromtheACwalloutletandturnthePOWER0switch

offandcheckthefuse.Ifthefuseis

blown,replaceitwithoneofthefuseslistedint

 

hetablebelow,plugtheamplifierintoits

ACwalloutletandturnontheamplifier.Ifafter

replacingthefuse,itblowsimmediatelyupon

turningontheamplifier(POWERLEDdoes

not glow),afailedelectronic componentor

otherinternalmalfunctionmustbesuspected.Make

nofurtherattemptsatfusereplacement

or operation of the amplifier.

Refer the problem to competent ADCOM-authorized

service personnel.

 

 

 

NOTE

Beforecheckingorreplacingablownfuse,makecer tainyou UNPLUG THE AC LINE CORD FROM THE AC WALL OUTLET TO PREVENT POSSIBLE ELECTRICAL SHOCK.

AC LINE FUSES

 

BUSSMAN

 

ABC-12/250V

LITTELFUSE

 

3AB314012/250V

SOC

CES612A

/125V

 

 

 

 

NOTE

 

 

 

Thefuseslistedabove,andtheirtimecurrentblow

ingpoints,havebeencarefullyselected

and thoroughly tested to deliver optimal performanc

e while still accomplishing their

protectivefunctions.ReplacetheACLINEFUSEonly

 

withoneofthefuseslistedabove.

DO NOT USE ANY SUBSTITUTE FUSES

WITH

DIFFERENT RATINGS,

TIME-CURRENT CURVES OR VALUES. Failuretoobservethisprecautionmaycause

serious damagetotheamplifiercircuits,

MAY CREATE A FIRE HAZARD, AND WILL

VOID YOUR WARRANTY.

 

 

 

 

 

 

To remove a blown or suspect fuse fromits fuse hol

 

der, use only a number 2 Phillips

screwdrivertopreventdamagetothefuseholder.S

 

implypresslightlyonthefuseholder

capandturncounterclockwise.Thecapwill"pop"o

 

utafterseveralturns.Toreplacethe

fuseholdercap,oncethefusehasbeenreplacedan

 

dproperlyinstalledinitsseatonthe

fuseholder cap, press lightly inward, once the fus

 

eand cap have been inserted in the

fuseholderbody,andturnthecapclockwiseuntil

itisfirmlyseatedinthefuseholderbody.

Be certain not to cause crossthreading of the fuse

holder body and cap to prevent

Page 14
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Adcom GFA-555MS WheneverthePOWERswitchonthefrontpanelistur, nedonandtheamplifierisenergized, rdoesnotcausethePOWERLEDto