QSC 1200 Käyttöohje

QSC Vastaanotin 1200

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Owner’s
Manual
®
A U D I O
Rev. C
Model 1100
Model 1200
Model 1400
Model 1700
▲
▲
▲
▲
Series One
*TD-000027-00*
EXPLANATION OF
GRAPHICAL SYMBOLS
The lightning ash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated dangerous voltage within the“ ”
product’s enclosure that may be of sucient magnitude
to constitute a risk of electric shock to humans.
The exclamation point within an equilateral triangle is
intended to alert the users to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the product.
EXPLICATION DES
SYMBOLES GRAPHIQUES
Le symbole clair avec point de è èche à ’ é ’ l intr rieur d un
triangle quilat ral est utilis pour alerter l utilisateuré é é ’
de la pré àsence l’ é “int rieur du coret de voltage
dangereux” non isolé d’ampleur suffisante pour
constituer un risque d’ éel trocution.
Le point d’exclamation à l’ é ’int rieur d un triangle
é é équilat ral est employ pour alerter les utilisateurs de
la pr sence d instructions importantes pour leé ’
fonctionnement et l entretien (service) dans le livret’
d appareil.’instruction accompagnant l’
CAUTION: To reduce the rish of electric shock, do not remove
the cover. No user-serviceable parts inside. Refer servicing to
qualied service personnel.
WARNING: To prevent re or electric shock, do not expose this
equipment to rain or moisture.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION: Pour enviter les risques de chock electrique, ne
pas enlever le courvercle. Aucun entretien de pieces interieures
par l usager. Coner l entretien au personnel qualie.’ ’
AVIS: Pour enviter les risques d incendie ou d’ ’electrocution,
n humidite.’exposez pas cet article a la pluie ou a l’
AVIS
RISQUE DE CHOCK ELECTRIQUE
NE PAS OUVRIR
SAFEGUARDS
Electrical energy can perform many useful functions. This unit has
been engineered and manufactured to assure your personal safety.
Improper use can result in potential electrical shock or re hazards. In
order not to defeat the safeguards, observe the following instructions
for its installation, use and servicing.
PRECAUTIONS
L’énergie électrique peut remplir de nombreuses fonctions utiles. Cet
appariel a été conçu et réalisé pour assurer une sécurité personnelle
entiére. Une utilisation impropre peut entraîner des risques
d’électrocution ou d’incendie. Dans le but de ne pas rendre inutiles les
mesures de sécurité, bien observer les instructions suivantes pour
l’installation, l’utilisation et l’entretien de l’appareil.
Series One Power Amplier
Operation Manual
T A B L E O F C O N T E N T S
I: INTRODUCTION
1.1 Welcome .................................................... 3
1.2 Warranty ..................................................... 3
1.3 Overview of Amplier ................................. 3
1.4 Specications ............................................. 4
II: BASIC INSTRUCTIONS
2.1 Unpacking and Inspection .......................... 5
2.2 Important Precautions ................................ 5
2.3 Quick Instructions ....................................... 6
III: OPERATION
3.1 Cooling ....................................................... 8
3.2 AC Requirements ....................................... 9
3.3 Input Connections ...................................... 9
3.4 Octal Module Accessories ........................ 12
3.5 Input Switches and Mono Bridging........... 12
3.6 Speaker Connections ............................... 13
3.7 25 and 70 Volt Systems ........................... 15
3.8 Protection Features .................................. 15
3.9 Operational Troubleshooting .................... 16
IV: SPEAKER PROTECTION
4.1 Background .............................................. 18
4.2 DC Protection ........................................... 18
4.3 Horn Driver Protection .............................. 18
4.4 Power Capacity ........................................ 19
4.5 Power Limiting.......................................... 19
4.6 User Responsibility .................................. 19
V: MAINTENANCE AND SERVICE
5.1 Cleaning ................................................... 20
5.2 Dust Removal ........................................... 20
5.3 User Maintenance .................................... 20
5.4 Obtaining Service ..................................... 20
3
I. INTRODUCTION
1.1 WELCOME
Thank you for selecting a QSC Series One power amplier for your audio system. Our goal is to ensure your complete
satisfaction with your amplier purchase. Please do not hesitate to call your QSC Dealer or QSC Audio Products if you
have any service problems or questions not answered in this manual.
Your QSC Series One power amplier can be readily operated by anyone familiar with professional audio systems. The
four models covered by this manual, the 1100, 1200, 1400 and 1700, have similar features and connections. Any
dierences will be covered in the following detailed instruction sections of this manual. Because not all amplier features
and characteristics are standardized, we recommend that both experienced and rst-time users review the contents of this
manual.
Please consult the table of contents for quick reference to sections of interest. We recommend that all users review the
“ ”Basic Instructions section of this manual before installing or operating the amplier.
1.2 WARRANTY AND DISCLAIMERS
QSC Audio Products, Inc. is not liable for any damage to speakers, ampliers, or any other equipment that is caused
by negligence or improper installation and/or use of the Series One Amplier.
Product Warranty
QSC Audio Products, Inc. guarantees the Series One Amplier to be free from defective material and/or workmanship
for a period of three years from date of sale, and will replace defective parts and repair malfunctioning products under
this warranty when the defect occurs under normal installation and use provided the unit is returned to our factory—
via prepaid transportation with proof of purchase (sales receipt). This warranty provides that examination of the
returned product must disclose, in our judgement, a manufacturing defect. This warranty does not extend to any
product which has been subject to misuse, neglect, accident, improper installation, or where the date code has been
removed or defaced.
Warranty and Service Repair Instructions
1. Pack the product safely making sure to include a copy of the sales receipt, your name, return address, and phone
number. Mark the package: Attention Service Department.
2. Call QSC’ — — “ ”s Service Department 1-800-772-2834 and obtain a Return Authorization (R.A.) number.Ship the
product prepaid to QSC Audio Products. We recommend UPS.
3. We will determine if the product is under warranty:
a. If it is, we will repair and ship it back to you at no charge.
b. If it is not, we will contact you and inform you of the charges. Upon your approval, we will repair the product
and ship it back freight and services charges collect (COD).
1.3 OVERVIEW OF AMPLIFIER
The basic Series One circuit design is the result of years of QSC product development, combined with a host of new
features, a number of circuit improvements, and the use of premium components. The result is superb audio performance,
exceptional reliability, and a exible interface system.
To begin with, each channel has a balanced bipolar power supply which assures proper dynamic response during program
peaks. We then combine a superior series of complementary power transistors with a modern high-performance
integrated circuit at the input, in order to deliver the required power with the minimum number of amplifying stages. This
ensures minimum signal degradation with maximum reliability and consistency. The circuit accepts balanced or
unbalanced input signals and provides the high internal gain needed for low overall distortion and wide frequency
response. Due to the circuit simplicity and the fact that we can use direct-mounted output transistors, Series One power
ampliers oer higher power, smaller size and lower weight than older designs.
In order to ensure that users get the full benet of high performance amplication despite real-world hazards, our circuit
includes many operational and protective features. Complete protection is provided for open-circuit, short-circuit, and
mismatched loads; the amplier will shut down temporarily if it over-heats, and AC circuit breakers protect against
excessive power levels. Our protection circuits are designed to ensure a minimum of false triggering and unwanted
interruptions and except for the AC breaker, which replaces the usual AC fuse, all protection systems will reset

Tuotetiedot

Merkki: QSC
Kategoria: Vastaanotin
Malli: 1200

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