Adcom gfa 7500 owners manual

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GFA-7500

High Current THX®
5-Channel
Power Amplifier

lllllllll

OWNERS MANUAL

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THE FOLLOWING PRECAURONS AND SAFETY INSTRUCHONS
ARE REQUIREMENTS OF UL AND CSA SAFETY REGULA'ITONS

Wanting: To reduce the risk or lire or electric shock, do not expose
this unit to rain or moisture.

RISK OF ELECTRIC SHOCK '
DO NOT OPEN .

AVIS. BISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

The graphic symbol ot a lIghtnIng llash With an arrow
point wtthin a triangle SlglllIleS that there Is dangerous
voltage wtthln the unit and it poses a hazard to anyone
rcmovrng the cover to gain access to the interior oi the
unit Only qualified service personnel should make
any such attempt.

The graphic symbol at an exclamation paint Within an
equueteral mangle warns a user or the devtue that It Is
necessary to teler to the Instruction manual and Its
warnings tor proper operation at the unit

Do not place this unit on an unstable cart. stand, tripod,
bracket, or table The unit may fall, caustng serious
Iniury to a child or adult, and serious damage to the
unit Use only WIIII acart, stand, tripod, bracket, or table
recommended by the manuiaclurer, or sold With the
unit Any mounting ol the devtce should Iollow the man-
utacturer's Instructions, and should use a mounting ac-
cessory recommended by the manufacturer
Fiend all the safety and operatmg Instructions bolero connecting or using
this unit

Retain this notice and the owner's manual tor Iuture relerence
All warnings on the unit and in its operating Instructions should be adhered to

All operating and use Instructions should be lollowed

Do not use this unit near water. tor example, near a bathtub. wasitbowl.
kitchen stnk. laundry tub. In a wet basement, or near a swtmming pool

The unit should be Installed so that Its location or posmon does not Interfere
with It; proper ventilation For example. it ohould not be situated on a bed,
sota, rug. or Similar surface that may block the ventilation openings; or
placed In a built-in Installation, such as bookcase or cabinet. that may
impede the How of air through Its ventilation openings

The unit should be Situated away from heat sources such as radiators, heal
registers, stoves, or otherdeVIces (Including am pIIIiers) that produce heat

The unit should be connected to a power-supply outlet only oi the voltage
and lrequency marked on Its rear panel

The power-supply cord should be routed so that it Is not likely to be walked
on or pinched. especially near the plug, convenience receptacles, or where
the cord exne lrom the unit

Clean unit only as recommended In Its Instruction manual

The power-supply cord ol the unit should be unplugged from the wall outlet
when It Is to be unused tor a long period of lime

Care should be taken so that ODJBCIS do not fall, and liquids are not spilled.
Into the enclosure through any openings

This unit should be serVIced by qualified service personnel when
The power cord or the plug has been damaged, or

Obiects have iatlen, or liquid has been spilled, Into the unit, or
The unit has been sxpnsad tn rain. or liquids at any kind. or
The unit does not appear to operate normally, or exhibits a
marked change In perlormance, or

The deVIoe has been dropped, or the enclosure damaged

rn COW)

DO NOT ATTEMPT SERVICING OF THIS UNIT VOURSELF.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

ATTENTION

POUR PREVENIFI LES cHocs ELECTRIOUES NE PAS UTILISER
CETTE FICHE POLARISEE AVEC UN PROLONGATEUR, UNE FRISE
DE COURANT ou UNE AUTRE SORT": DI: COURANT. SAUF sI LES
LAMES PEUVENT ETFIE INSEREES A FOND SANS EN LAISSER AU-
CUNE PARTIE A DEcouvsnr

CAUTION

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS POLARIZED PLUG

WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UN-

EEiggUFEIEBLADES CAN BE FULLY INSERTED TO PREVENT BLADE
X

CAUTION

POWER LINES
Any outdoor antenna must be located away from all power lines.

OUTDOOR ANTENNA GROUNDING

It an outside antenna is connected to your tuner or tuner-preamplifier, be
sure the antenna system is grounded so as to provide some protection
against voltage surges and built-up static charges. Section 810 ol the
National Electrical Code, ANSI/NFPA No. 70-1984, prowdes information wllh
respect to proper grounding of the mast and supporting structure, grounding
of the lead-in wire to an antenna discharge unit. size at grounding
conductors, location of antenna discharge unit, connection to grounding
electrodes. and requirements tor the grounding electrode.

3. Use No.10 AWG (5.3 mm!) copper, No.8 AWG (5.4 mm) aluminum,
No.17 AWG (1.0 mm) copper-clad steel or bronle wire, or larger, as a
ground wire.

b. Secure antenna lead insulators spaced irorn 4-6 leet (1 .22-1 .83 m) apart.

0. Mount antenna discharge unit as close as possible to where lead-in
enters house.

d. Use iumper wlre not smaller than No.6 AWG (13.3 mm) copper, or the
equlvalent. when a separate antenna-grouridlng electrode is used. See NEG
Section 810-21 (j).

Emu: of ANTENNA onouNDINc AS PER NATIONAL ELECTRICAL cons metal mum:
CONTAINED IN ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT

POWER LINES

SERVICE ENTRANCE
UCTOFIS

FD

STANDOFF
INSUMTOTIO. b
MAST
ANTENNA
LEAD-IN WIRE

ANTENNA
DISCHARGE
UNIT, c

to EXTERNAL ANTENNA
TERMINALS or RADIO RECEIVER
rowan senvice GROUNDING
ELECTRODE SVS EM

(0 g Irmrlor metal water pipe)

GROUND WIRE. a.b

GROUND CLAMPS
ENDING JJMPER, d

OPTIONAL ANTEMIA GRDIJNDNE
ELECTRODE DRIVEN B FEET [2 44 M) INTO
THE EARTH IF REQURED BV LOCAL
cones SEE NEG SECTION SID-2| (I)

NOTE TO CATV SYSTEM INSTALLER

TIIIS reminder Is provtded to call the CATV system Installers attention to
Article 820-22 oi the National Electrical Code that provtdes guidelines tor
proper grounding and, In particular, specifies that the cable ground shall be
connected to the grounding system oi the building, as close to the paint of
cable entry as practical