Hilton Audio MA-150 Manuel utilisateur

HILTON MA-150

SOUND SYSTEM

OPERATING INSTRUCTIONS

Please read this manual carefully, and keep it in a safe place for future reference. It contains valuable

information about your new Hilton MA-150 sound system: its features, how to operate it, how to take

care of it, how to avoid damage to it, what to do if any problems should occur.

If you should encounter any problem in setting up or in operating your Hilton sound system, or if you

have any question which is not answered in this manual, please write or phone.

HILTON AUDIO PRODUCTS of TEXAS, LLC.

9727 SUGAR TREE COURT –HOUSTON, TX - 77070

PHONE (713) 955-5911 FAX (713) 429-5026

e-mail: info@hiltonaudio.com web site: www.hiltonaudio.com

TABLE OF CONTENTS

GUARANTEE OF SATISFACTION......................................................................................................... Page 1

TOP DECK PANEL ...............................................................................................................................Page 3

FRONT EDGE PANEL...........................................................................................................................Page 3

REAR PANEL........................................................................................................................................Page 4

CONNECTING THE SIGNAL SOURCE ................................................................................................. Page 5

SETUP AND OPERATION.....................................................................................................................Page 6

SPEAKER HOOKUP..............................................................................................................................Page 6

GETTING THE MOST FROM YOUR HILTON .......................................................................................Page 8

MAKING RECORDINGS ........................................................................................................................Page 9

CONNECTING TO AN EXTERNAL AMPLIFIER................................................................................... Page 10

ROUTINE INSPECTION AND MAINTENANCE .................................................................................... Page 10

IN CASE OF TROUBLE .......................................................................................................................Page 11

MULTIPLE SPEAKER HOOKUP DIAGRAMS....................................................................................... Page 13

SCHEMATIC - PREAMP ..................................................................................................................... Page 14

SCHEMATIC - POWER AMPLIFIER.................................................................................................... Page 15

SCHEMATIC - POWER SUPPLY ........................................................................................................ Page 16

1

GUARANTEE OF SATISFACTION

Any purchaser of Hilton sound equipment, if not completely satisfied with it, may return such equipment in

undamaged condition, freight charges prepaid, within 30 days after original purchase, for full refund of its purchase

price.

TWO-YEAR LIMITED WARRANTY

For a period of two years after initial purchase, Hilton Audio Products will, at its option, either repair or replace

without charge any Hilton sound system or component thereof which fails in normal service, subject to the

exceptions listed below. Any reasonable shipping and transit insurance charges, within the continental U.S.A.,

incurred in the course of warranty service will be paid by Hilton Audio Products.

EXCEPTIONS TO WARRANTY:

Warranty is restricted to correction of any defect which becomes evident in the course of normal use and operation,

and does not cover any of the following:

1. Repair of normal wear and tear: scratches, nicks, dents, etc.

2. Modernization or alteration to specifications which were not in effect at the time of original purchase.

3. Repair of damage which is caused by accident or abuse and not by any defect in the sound system.

4. Reimbursement for any repair charges not authorized by Hilton Audio Products.

5. Repair of damage which is caused by connecting the sound system to any portable generator or inverter.

6. Repair of damage which is caused by using any other connection or hookup which is stated in this manual

to be improper and likely to cause damage to the sound system.

7. Replacement of any unit which has been modified or altered in any way, by adding inputs or outputs, by

permanently changing its appearance by painting, engraving in an exposed spot, etc.

2

8. Payments of any transit charges, freight, insurance, customs charges or brokerage fees, which may be incurred

in providing warranty service involving international customers. Any such charges, if advanced by Hilton Audio

Products, will be invoiced to the owner of the equipment.

9. Hilton Audio Products assumes no responsibility for any special, incidental or consequential damage.

3

HILTON MODEL MA-150

Sound System

4

TOP DECK PANEL

MON. SECTION:

The MON. OUT jack signal level and mode is controlled in this section. The slide switch will select either the VOICE

or the MUSIC program to be monitored. The signal out is adjusted with the LEVEL control.

MUSIC SECTION:

The MUSIC volume control adjusts the loudness of the music program when playing a Laptop Computer, MP3,

CD or other signal through the two AUXILIARY inputs. Adjustment of music volume can also be done by using

the Hilton remote volume control assembly in conjunction with the volume control.

MUSIC BASS AND TREBLE CONTROLS: Adjust the bass and treble compensation for the music program. They

have no effect on any of the voice program channels. Very wide latitude is provided, and we recommend using

only the minimum adjustment from normal which will give you the music sound that you desire. See also the section

titled GETTING THE MOST FROM YOUR HILTON.

MICROPHONE SECTIONS:

Four high impedance microphone inputs are provided. Volume and tone controls are completely independent of

each other, and of the music program.

MICROPHONE TONE CONTROLS: One of the features which makes the Hilton sound systems outstanding is

the ability of their voice circuits to reproduce cleanly the high frequencies which are absolutely essential for voice

clarity. If you have a voice in the bass range, turn the tone control to the right far enough to be sure that there

is no boomingness; if you are a baritone, leave it near the normal setting.

AUX 1/AUX 2 INPUTS:

These four controls are used to feed signals into the MUSIC section of the MA-150's preamp. Examples of signal

input sources would be Laptops, MP3, CDs, Mini-Discs or Turntables. The controls marked BALANCE and

LEVEL are input controls. These four controls are fed by the 3.5mm stereo jacks marked AUX 1 and AUX 2

on the Front Edge of the MA-150. The BALANCE adjusts the signal level between A & B of a two track or stereo

signal. The LEVEL control sets the volume feeding the MUSIC section.

POWER:

5

This red light comes on as soon as the AC power switch is turned ON.

AUXILIARY AC OUTLETS:

Two, three prong switched auxiliary AC sockets are provided. These outlets are switched off/on by the power

switch in the POWER ENTRY MODULE. These are meant to be used for low wattage external devices such

as: a wireless microphone, tape recorder, or CD player. Do not exceed 60 Watts combined. The circuit does go

through the main fuse in the POWER ENTRY MODULE. The voltage will be the same as the supplied line

voltage.

FRONT EDGE PANEL

MON. OUT:

A gold RCA phono jack is provided for connecting to an external amplifier for monitoring either the voice or the

music program. This output may also be used to connect an Assistive Listening System, a recorder, amplified

speaker, or other system. The output level is adjustable.

AUX 1 & AUX 2:

Two 3.5mm stereo jacks are provided for feeding signals into the MUSIC section of the MA-150.

Jacks AUX 1 and AUX 2 are used to feed signals into the system. The Top Panel controls marked BALANCE

and LEVEL adjust the signal from these two jacks before the signal reaches the MUSIC section. Left and Right

stereo signals can be connected directly to the two jacks or two separate signal sources can be connected.

Examples of using these two jacks are: The left and right channel of a CD to AUX 1 and a MP3 player into AUX

2. See the section PLAYING LAPTOPS, MP3's, CD's, & ?, for more details on using these jacks.

REMOTE CONTROL JACK:

By plugging in the Hilton remote volume control assembly into MUSIC REMOTE, the music volume can be adjusted

with the knob at the microphone, without touching the knob on the top panel.

Recommended operation: Plug in the remote control cord and turn its volume full on. Set the MUSIC volume

control at a level slightly higher than you need for best voice-music balance. With the remote control, decrease

the music level so that your voice comes out clearly over the music. Without touching the amplifier knob you

can now adjust the music volume from the remote cord.

The remote will not turn the music totally off. If you do not want any music, use the MUSIC VOLUME control.

MIC 1, 2, 3, & 4:

6

Four high impedance microphone inputs are provided.

REAR PANEL

SPEAKER OUTPUT JACKS:

Two speaker jacks are located on the rear of the MA-150.

The speaker outputs are mono 1/4" phone jacks, compatible with standard mono 1/4" phone plugs. The jacks

are connected in parallel with each other. Optimum impedance load is 4 to 16 ohms. Do not connect any

combination of speakers which produces a net impedance load of less than 4 ohms. One series Y connector

is furnished with the MA-150, for use in connecting more than two speakers. See the section titled SPEAKER

HOOKUP for detailed instructions for hookup of multiple speakers.

Do not connect a tape recorder or any other sound equipment to the speaker jacks of the MA-150. Doing so

could cause overheating of the amplifier, and possibly damage it.

SIGNAL OUT:

Two gold RCA jacks are provided, one marked HIGH and the other LOW. Both jacks will vary in volume with the

setting of the MUSIC and MIC volume and the tone controls.

The HIGH jack is a variable line level signal (sometimes referred to as an auxiliary level). It is used to feed a

line level signal to an exterior system.

The LOW jack is a variable microphone level signal. It is used to feed a microphone level signal to an exterior

system.

These two jacks may be used for making monaural recordings from the MA-150, or to connect a slave amplifier

to gain even more power and coverage. When using these outputs remember they are dependent on the volume

and tone setting of the MUSIC and MIC controls.

See the sections titled MAKING RECORDINGS and CONNECTING TO AN EXTERNAL AMPLIFIER.

POWER ENTRY MODULE:

The power entry module contains the power off/on switch, fuse holder, voltage selector and power cord

receptacle.

7

Units which have been damaged by connecting to a wrong power source will not be covered by the warranty.

To open the power entry module to replace the fuse or change voltage, use a small screwdriver or similar device.

Remove the power cord, insert the tip of the tool at a 45 degree angle into one of the notchs between the power

cord receptacle and the power module cover, and apply pressure towards the cover while prying outward.

To change the fuse: remove the fuse holder that is located under the cover and the fuse is easily removed and

replaced. Recommended fuses for 100V or 120V operation: one MDQ3, (3 amp, 250V), for 230V or 240V

operation; two GDC1.6, (1.6 amp, 250V), one for each power leg. Unplug the aux input before turning the unit

on again. If the fuse again blows almost

immediately, unplug the amplifier and

do not attempt to use it until the cause of

the problem has been determined.

Refer to the trouble shooting section of this

manual.

To Change Selected Voltage: Four AC voltages can be used with the MA-150: 100V, 120V, 230V or 240V.

To change between voltages, pull the voltage selector card straight out of the housing using the indicator pin.

Orient the selector card so that the desired voltage is readable at the bottom of the card. Orient the indicator

pin to point up when the desired voltage is readable at the bottom. Insert the voltage selector card into the housing

with the edge showing the selected voltage entering first and the printed side of card facing the fuse compartment.

Reinstall the cover and verify the indicator pin shows the desired voltage.

Voltage Selector Card Orientation

If required, the fuse holder may be changed to take either a single North American fuse or two European standard

fuses. To change, open the power entry module door and remove the fuse holder, insert the correct fuses, turn

the holder over and reinstall. You will not see the fuses when the fuse holder is correctly installed in the power

entry module. The European arrangement requires two fuses. Older model MA-150's require a Phillips screw driver

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