troubleshooting
SYM PTOM
CAUSE
SOLU TION
UNIT DO ES NOT PRODUCE SO UND.
♦
POW ER SW ITCH NOT IN ON POSITION.
♦
MOVE POW ER SW ITCH TO ON POSITION.
POW ER LED DO ES NOT LIGHT.
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POW ER CABLE NOT CONNECTED TO
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CONNECT POW ER CABLE TO AC SUPPLY.
AM PLIFIER OR T O O U T L E T .
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CHECK CONDITION OF O UTLET.
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AC OUTLET NOT ACTIVE .
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REPLACE AM PLIFIER MAIN POW ER FUSE ON.
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M A IN A M PLIFIER FU SE D EFEC TIV E.
REAR PA NEL WITH CORRECT TYPE & RATING.
POW ER LED LIGHTS, BUT NO SOUND
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NO INPUT SO URC E SIGNAL.
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CHECK FOR PROPER FUNCTION OF IN P U T
IS PRO DUCED BY AM PLIFIER.
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INPUT SOURCE NOT CONNECTED. SOURCE DEVICE (M IXER, CD PLAYER, ETC .).
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DEFECTIVE INPUT CONNECTING CABLE.
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CHECK INPUT CABLES & CONNECTIONS.
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SPEAKERS NOT CONNECTED.
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REPLACE CABLES IN QUESTION WITH KNOW N
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DEFECTIVE SPEA KER CABLES. GOOD CA BLES.
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SPEAKER SYSTEM INOPERATIVE.
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CHECK OPERATING CONDITION, CABLES AND
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AM PLIFIER’S LEVEL CO NTROLS ARE STATUS OF SPEAKER SYSTEM .
SET TO ZERO.
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BE SURE THE LEV EL CONTROLS ARE PROPERLY SET.
SOUND IS PRESENT BUT VOLUM E IS
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AM PLIFIER INPUT LEVEL CO NTROLS ARE
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ADJUST LEVEL CONTROLS AS PER
TOO LOW EV EN THO UGH SOURCE SET TOO LOW. INSTRUCTIONS.
DEVICE (i.e.: CD PLAYER, MIXER)
OUTPUT IS SET TO A HIGH LEV EL.
LOUD 50/60 HZ OR 100/120 HZ HUM HEARD
♦
IM PROPER OR DEFECTIVE GROUND
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CHECK FOR PROPER AC LINE GROUND AT
AT ALL TIMES THROUGH THE SPEAKERS. CONNECTION AT INPUTS. POW ER AM P AND ALL INPUT DEVICES.
IM PROPER OR DEFECTIVE GROUND
♦
CHECK INPUT CABLES FOR ALL DEVICES
AT INPUT SOURCE DEVIC E (S ). AND SIGNAL PROC ESSING AS WELL AS INPUT
♦
IM PROPER OR DEFECTIVE GROUND CABLES TO POW ER AM PLIFIER.
CONNECTION ON AC OUTLET.
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CHECK POSITION OF GROUND LIFT SW ITCH
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GROUND LO OP THRO UG H AC LINE AS PER INSTRUCTIONS FO R LIFTING THE
CONNECTION / RACK M OUNTING. GRO UND.
♦
NEVER LIFT THE AC LINE GROUND ON THE
POW ER AM PLIFIER. IF YO U ARE NOT
TOTALLY FAM ILIAR WITH GROUND LIFTING
O R U N IF ICATION PROCEDURES, DO NOT
ATTEM PT THEM WITHOUT FIRST CO NSULT-
ING YO UR DEALER OR A QUALIFIED SO UND
TECHNICIAN FO R M ORE IN F O R M A T ION ON
GROUNDING. IM PROPERLY DONE, SUC H
PROC EDURES CAN POSE A SAFETY AND/OR
FIRE HAZARD.
SOUND IS DISTO RTED.
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DISTORTION OCCURRING IN SOURCE
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CHECK VU M ETERS
DEVICE (C D PLAYER, MIXER, ETC .).
♦
ADJUST LEVEL CONTROLS AS PER
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INPUT LEVEL IS SET TOO HIGH. INSTRUCTIONS.
FUSE BLOW S INTERM ITTENTLY.
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SPEAKER LOAD IMPEDANCE IS TOO LOW .
♦
CHECK FOR SHORTS ON THE O UTPUTS.
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TYPE OR RATING OF THE FUSE IS NOT
♦
CHECK YO UR SPEAKER IMPEDANCE.
CORRECT.
♦
CHECK THAT THE FUSE TYPE AND RATING
ARE CORRECT.
em ail
For service -re lated questions you can em ail us at: service@ gem inidj.com
For te c h n ical support you can em ail us at: techhelp@ gem inidj.co m
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