Rotel QA 40B OM

Page 1

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PUBLIC. ADDRESS
AMPLIFIER WITH
AM/ FM TUNER

GA-4CJB

I R I TO PREVENT FIRE 0R SHOCK H ,
DO NOT EXPOSE THIS APPLIANCE TO
RAIN 0R M0
WI". year SERIAL NUM
The number I: locamd m2:
ulna on'lhl '23! pane

MANUAL.

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PREDAUTllJlIS

To mun maximum 61, please carefully lollcw the instructions
below:

1. Check lamp-war gonna

Plug the unitianly into a power name when: voltage and fr-qu-ngy
ratings «mm imam gm" In the inumfilvn manual.

2. few-ear!

The unit is provided With a Scar: type ax. line card with a grounding
wine. insert tne give only into n 3 wndumr antler lwnwining any-map
in; wire] of 120V/60Hz. 0! If a J-canduetw out"! It not available, use
an udnpwr, :Bnnecting the grounding wire ID I gmundlng screw on I
wail, no. insert or unplug the l.¢. llne nerd enlv the? meklfli Clmln
the units pol-var switch is turned off, tn prwlnl ihoek naiia from
damaging the punk-rs,

I. Ventilatlun

To aft-n m: venerated by the unit, it it nlelmry to provide email:
ventilation around the unit. Avoid blanking or imp-ding the ventilation
holes on the unit. To prevent unneceearv problems. Inn-ll the unit an
a pin:- free 1mm any vibrations, direct sunlight, humidity a: dust
cirwifiinn.

4. Do no ape}: the cum-m

The unit. hu been eomnleteiv factory Mun-tad. To avoid lilflric
shock or harm to the humln bony or to the unit, Hm apan the
nbinet.

5. I! the uni: gets-in or Ioniun nutter enters

In use the unit gets wet or any water or reign matter get: Into
the cabinet, immediately diswnnlfl VII a.c. Ilne curd. and :0an
your dealer on qualified electrician.

6. Inmetlan menu-I

Keep the inflmction manual may [hi unit, and record the serial number
(found an the mar pun-n on me carer.

MITCHESLCDNTHOLS AND OPERATION

(1] Power Button

Depress xhit bflmfl 1: mm an pal-er. Prearlng it a second time will
turn off power.

(2) Power Indicator

Gin-u when the power is turned an, innicnmg that the unit u in
Duration.

(3] BAfilTREBLE Tani Controls

The-e ore elidenme central: tint rqulul the balance of (one of
inuut liar-lie coming from AUX/TUNER. BASS regulates the low
QUIHCV range and TREBLE the high frewuenw range. Slide the muse
tin knob: to_ the right In Increee the revenge, and to the [aft tn
dean-ell.

(4) MIC 1, 2 Level Controls

These wntrols maul-u the inn!!! levels from mlcrauhanes command
to the respective MIC termlnult. Hot-re tech knob cinekwise to raise
the inset level, and counterclockwise an reduce it. Turning the. knob
fully mummlockwlse (to nantlowo'fl cuts all input from microphone.
is) TEL PAGE Level Control

This knob regulate: the level a! input from a telephone paging urm
connected to the TEL PAGE terminals. Estate the knob eloekvme to
ruin the level, And count-rcmckwin to reduce it. Turnlng the knob
Mlv enunurelnekwiu up position' I wt: innut from a telephone
paging unit.

(5) AUX/TUNER Level Gumml
Thin Itnnb "quieter the level of input From the tuner section of the
unit, or frurn any equipment cannecmd to the PROGRAM/AUX input
terminal an the rear panel, Suzi-I as chin-lee, up: dedt, rhythm box,
wntherirer, etc. Home the knan clockwise to «line the leVel a DUI
lrern the built-In tuner, 1nd counurclackwise to "is: th- levnl of input
from the auxiliary unit. A: mld nesitinn ("0"), Input from altner eat-rec

is cut,
Note: Tnls enmml name: an either tuner or eulilierv Ilflit, not

both at once: signals annet be mixed.

(7} MASTER Volume Control

This knob central; in one time the combined signal; earning fmm
MIC: I, 2, TEL "ACE and AUX/TUNER. Remus the knob :lackwisa
tn mine the aver-II level af those signals mgetha, Ind fame it caun.
terclockwiuw reduce it. Tuning the lunch fuliy caunterelackwlse
(m "0" position) cut; all inputs.

(8) Tuning Dial

This knob runes In the desired AM or FM urn-dent anion, Use the
lawer hell of the knob for AM band, and the upper half for FM bend
reception. Rotate the knob to bring 1h: painter on the kneb m the
desired position an {ill frequency ml: around the knnb.

(9) AFC Switch (FM)

This witch is need to prevent tuning drift originating in frequenw
deviatinn of Inc-i axillamr, A: a general rule, 5c! the [witch to OFF
when YOU EU": in to I Station, Ind to ON lfier tuning I: Mmplnn.
(10) AM/FM Selector
This switch selects AM or FM reception.

.
(11) Microphone Input Terminals
The. en wet-4V9! microphone Input tenninale. The 2 right-hand
terminal: are far MIC l eennectiont. and the z left-hand terminals
.1! for MIC 2 wnnecxiorls. Both MIC I end MIC 2 :unnectlons can
be made limultemeoudyt Thm terrmnal: hem been already ediuetcd to
=ch law ilflmll'lcl (250 ohms! buianced a! unbalanca'd microphone,

9 0