Adcom gfa 5500 owners manual

Page 1

GFA-5500

High Current
Power Amplifier

OWNERS MANUAL

Page 2

THE FOLLOWING PRECAUTIONS AND SAFETY INSTRUCTIONS
ARE REQUIREMENTS OF UL AND CSA SAFETY REGULATIONS

Warning: To reduce the risk 0! tire or electric shock. do not expose
this unit to rain or moisture.

/i\

AVIS: RISOUE DE CHOC ELECTRIOUE-NE PAS OUVRIR.

A
A:
O

RISK OF ELECTRIC SHOCK '
DO NOT OPEN .

The graphic symbol oi a lightning Ilash with an arrow
point wrthin a triangle signifies that there is dangerous
voltage Within the unit and it poses a hazard to anyone
removrng the cover to gain access to the interior oi the
unitOnly qualified servlce personnel should make
any such attempt.

The graphm :yml-Inl nI an ovclamaticn point within an
equilateral mangle warns a user of the device that it is
necessary to reler to the instruction manual and its
warnings lor proper operation of the unit

00 not place this unit on an unstable cart. stariu. liipuiJ.
bracket. or table. The unit may tall. causing serious
injury to a child or adult. and serious damage to the
unit Use only With acait, stand. tripod. bracket. or table
recommended by the. manufacturer, or sold with the
unit. Any mounting oi the devrce should lollow the man-
ufacturers instructions. and should use a mounting acA
cessory recommended by the manufacturer.

Head all the safety and operating Instructions betore connecting or usmg
this unit.

Retain this notice and the owners manual ior luture reference
All warnings on the unit and in its operating instructions should be adhered to.
All operating and use instructions should be iollowed.

Do not use this unit near water: ior example. near a bathtub. washbowl.
kitchen Sink. laundry tub. in a wet basement. or near a swunming pool,

The unit should be installed so that its location or position does not interfere
With its proper ventilation For example, it should not be Situated on a bed.
sola. rug. or Similar surlace that may block the ventilation openings: or
placed in a bunt-in installation. such as bookcase or cabinet, that may
impede the tlow of air through its ventilation openings.

The unit should be situated away from heat sources such as radiators. heat
registers. stoves. or other devices (including amplihershhat produce heat

The unit should be connected to a power-supply outlet only at the voltage
and frequency 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 exits lrom the unit.

Clean unit only as recommended in its instruction manual

The powersupply cord or the unit should be unplugged lrorn the wall outlet
when it is to be unused tor a long period of time

Care should be taken so that objects do not fall. and liquids are not spilled.
into the enclosure through any openings

This unit should be serviced by qualified service personnel when.

A The power cord or the plug has been damaged: or

B ODJSCIS have fallen. or liquid has been spilled. into the unit: or

C The unit has been exposed to rain, or liqurds at any kind: or

D The unit does not appear to operate normally, or exhibits a
marked change in periormance; or

E The device has been dropped. or the enclosure damaged

DO NOT ATTEMPT SERVICING OF THIS UNIT VOURSELF.
REFER SERVICING T0 QUALIFIED SERVICE PERSONNEL.

ATTENTION

POUR PREVENIR LES pHocs ELECTRIOUES NE PAS UTILISER
CETTE FICHE POLARISEE AVEC UN FROLONGATEUR. UNE PRISE
DE COURANT ou UNE AUTRE sonriE DE COURANT, SAUF SI LES
LAMES PEUVENT ETRE INSEREES A FOND SANS EN LAISSER AU»
CUNE PARTIE A oecouvem.

CAUTION

TO PREVENT ELECTRIC SHOCK DO NOT USE THIS POLARIZED PLUG
WITH AN EXTENSION CORD. RECEPTACLE OR OTHER OUTLET UN-
LESS THE BLADES CAN BE FULLY INSEHIEU IU PHI:VI:N| BLADE
EXPOSURE.

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

OUTDOOR ANTENNA GROUNDING

If an outside antenna is connected to your tuner or tuner-preampiirier. be
sure the antenna system is grounded so as to provide some protection
against voltage surges and built-up static charges. Section 810 of the
National Electrical Code. ANSI/NFPA No. 70-1984. provides intom'iation with
respect to proper grounding oi the mast and supporting structure, grounding
of the lead-in wire to an antenna discharge unit. size of grounding
conductors. location of antenna discharge unit, connection to grounding
electrodes. and requirements for the groundlng electrode.

a. Use No.10 AWG (5.3 min) copper, No.8 AWG (8.4 mm) aluminum,
No.17 AWG (1.0 mm) copper-clad steel or bronze wire. or larger, as a
ground wire.

I). Secure antenna lead-in and ground Wires to house with stand-oft
insulators spaced lrom 4-6 test (1.22-1.83 m) apart.

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

it. Use jumper wire not smaller than No.6 AWG (13.3 mm) copper. or the
equivalent. when a separate antennagrounding electrode is used. See NEC
Section 810-21 (1').

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS
CONTAINED IN ARTICLE 810 » RADIO AND TELEVISION EQUIPMENT

SERVICE ENTRANCE
CONDUCTORS

/

STANDOFF
INSULATORS. h

MAST
a

senvtcs ANTENNA
ENTRANCE LEAD~|N WIRE
EQUIPMENT
ANTENNA
DISCHARGE
UNIT. 6

TD EXTERNAL tmeum
TERMINALS or RADlO RECElVEfi
POWER SERVICE GhouNDiNd
ELECTRODE SVSTEM GROUND WIRE. a.h
ti! o Interior metal water pipe)

GROUND CLAMPS
uuNuiNu JUMPER. a
OPTIONAL ANTENNA GROUNDING

ELECTRODE DRIVEN i3 FEET (244 M) iNTo

THE EARTH IF REQUIRED EV LOCAL
CODES SEE NEC SECTION 810-21 (1)

NOTE TO CATV SYSTEM INSTALLER

This reminder is provided to call the CATV system installers attention to
Article 820-22 ol the National Electrical Code that provrdes guidelines for
proper grounding and. in particular, specifies that the cable ground shall be
connected to the grounding system of the building, as close to the point at
cable entry as practical.