Majorcom PX-4120 Operation Manual

Please follow the instructions in this manual to obtain the optimum results from this unit.

We also recommend that you keep this manual handy for future reference.

4 ZONE PA MIXER AMPLIFIER

PX-4120

OPERATION MANUAL

PUBLIC ADDRESS SYSTEM

SD/MEDIA

POWER

EQ

MODE VOL+

VOL-

MONITOR

MUTE

MUTE MUTE MUTE MUTE MUTE

Z1

Z1 Z1 Z1 Z1 Z1

Z2

Z2 Z2 Z2 Z2 Z2

Z3

Z3 Z3 Z3 Z3 Z3

Z4

Z4 Z4 Z4 Z4 Z4

LEVEL LEVEL LEVEL LEVEL LEVEL

POWER

/PROT

CH 5

CH 4CH 3CH 2

CH 1

BASS BASS BASS BASS BASSTREBLE TREBLE TREBLE TREBLE TREBLE

-10 -10 -10 -10 -10-10 -10 -10 -10 -10+10 +10 +10 +10 +10+10 +10 +10 +10 +10

ZONE 4ZONE 3ZONE 2

ZONE 1

MONMONMONMON

LEVELLEVELLEVELLEVEL

LEVEL

0dB0dB0dB0dB

0dB

PROTPROTPROTPROT

CLIPCLIPCLIPCLIP

-5-5-5-5-7

-5

-3

-10-10-10-10-10

-15-15-15-15-15

00000

11111

22222

33333

44444

55555

66666

77777

88888

9 9 9 9 9

1010101010

0 0 0 0 0

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

6 6 6 6 6

7 7 7 7 7

8 8 8 8 8

9 9 9 9 9

10 10 10 10 10

ON

OFF

4 ZONE MIXER AMPLIFIER

PX-4120

TABLE OF CONTENTS

1. SAFETY PRECAUTIONS .......................................................................................3

2. FEATURES ...............................................................................................................5

3. NOMENCLATURE AND FUNCTIONS

3.1 Front Panel .............................................................................................................6

3.2 Rear Panel ..............................................................................................................7

4. OPERATION............................................................................................................. 8

5. MUTE FUNCTION.................................................................................................... 8

6. TROUBLE SHOOTING............................................................................................ 8

7. CONNECTIONS

7.1 Speaker Connections .............................................................................................. 9

7.2 XLR Connections .....................................................................................................9

8. APPLICATIONS .....................................................................................................10

9. BLOCK DIAGRAM..................................................................................................11

10.SPECIFICATIONS ...............................................................................................12

11.DIMENSIONAL DIAGRAM .................................................................................13

2

Be sure to read the instructions in this section carefully before use. Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included. We also recommend you keep this instruction manual handy for future reference.

Safety Symbol and Message Conventions

Safety symbols and messages described below are used in this manual to prevent bodily injury and property damage which could result from mishandling. Before operating your product, read this manual first and understand the safety symbols and messages so you are thoroughly aware of the potential safety

Indicates a potentially hazardous situation which, if mishandled, could result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage.

When Installing the Unit

Do not expose the unit to rain or an environment where it may be splashed by water or other liquids, as doing so may result in fire or electric shock.

Use the unit only with the voltage specified on the unit. Using a voltage higher than that which is specified may result in fire or electric shock.

Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid using the power cord in close proximity to heaters, and never place heavy objects -- including the unit itself -- on the power cord, as doing so may result in fire or electric shock.

Be sure to replace the unit's terminal cover after connection completion. Because high voltage is applied to the speaker terminals, never touch these terminals to avoid electric shock.

Be sure to ground to the safety ground (earth) terminal to avoid electric shock. Never ground to a gas pipe as a catastrophic disaster may result.

Avoid installing or mounting the unit in unstable locations, such as on a rickety table or a slanted surface. Doing so may result in the unit falling down, causing personal injury and/or property damage.

When the Unit is in Use

Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest MAJORCM dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock. If you detect smoke or a strange smell coming from the unit. If water or any metallic object gets into the unit If the unit falls, or the unit case breaks If the power supply cord is damaged (exposure of the core, disconnection, etc.) If it is malfunctioning (no tone sounds.)

To prevent a fire or electric shock, never open nor remove the unit case as there are high voltage components inside the unit. Refer all servicing to your nearest MAJORCM dealer.

Do not place cups, bowls, or other containers of liquid or metallic objects on top of the unit. If they accidentally spill into the unit, this may cause a fire or electric shock.

Do not insert nor drop metallic objects or flammable materials in the ventilation slots of the unit's cover, as this may result in fire or electric shock.

1. SAFETY PRECAUTIONS

3

An all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in the electrical installation of the building.

When Installing the Unit

Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock.

When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself. Operating the unit with a damaged power supply cord may cause a fire or electric shock.

When moving the unit, be sure to remove its power supply cord from the wall outlet. Moving the unit with the power cord connected to the outlet may cause damage to the power cord, resulting in fire or electric shock. When removing the power cord, be sure to hold its plug to pull.

Do not block the ventilation slots in the unit's cover. Doing so may cause heat to build up inside the unit and result in fire.

Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight, near the heaters, or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock.

When the Unit is in Use

Do not place heavy objects on the unit as this may cause it to fall or break which may result in personal injury and/or property damage. In addition, the object itself may fall off and cause injury and/or damage.

Make sure that the volume control is set to minimum position before power is switched on. Loud noise produced at high volume when power is switched on can impair hearing.

Do not operate the unit for an extended period of time with the sound distorting. This is an indication of a malfunction, which in turn can cause heat to generate and result in a fire.

Contact your MAJORCOM dealer as to the cleaning. If dust is allowed to accumulate in the unit over a long period of time, a fire or damage to the unit may result.

If dust accumulates on the power supply plug or in the wall AC outlet, a fire may result. Clean it periodically. In addition, insert the plug in the wall outlet securely.

Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a fire or electric shock.

SAFETY PRECAUTIONS

4

1. All sources are with matrix 4roads output function.

2. Remote paging MIC input with first priority, when priority is short circuit, then the remote paging MIC is third priority.

3. One road TEL input (volume adjustable), choose 1-4 zones output freely by manual, with second priority.

4. 3 roads MIC input, with three levels selector switch input sensitivity, signal gain control.

5. 2 roads RCA stereo LINE input, signal gain control.

6. 5 roads separate adjustable tone and volume control.

7. The volume from all audio source in 1-4 zone can be adjusted.

8. 4 roads LINE output, output is not controlled by monitor volume.

9. Power output: 4R 70V 100V output terminals; one road monitor 1W 8R output.

10.With AC output protection, overload protection, short circuit protection, over heat protection, top input protection.

11.LED indicator: Level indicator, clip indicator, protect indicator.

12.Built in MP3 player: separate power switch, MP3 player with SD card slot and USB port.

13.With float switch, Grid noise can be dealt with by floating.

2. FEATURES

5

1. Mute button and indicator,

mute on, indicators are on;

mute off, then indicators are off

2. Amplifier matrix 4 channel selector button

3. Monitor level indicator

4. Monitor volume control

Adjust monitor volume, clockwise rotation,

increase volume, conversely reduce

5. 1 zone amplifier level indicator

6. 1 zone monitor selector button

7. 1 zone amplifier output volume control

8. ON/OFF Power switch

Switch on, power on, switch down, power off

3. NOMENCLATURE AND FUNCTIONS

1

9. POWER-Power indicator

When power on, power indicators are on;

when power off, power indicators are off

10. CH1 High-pitched tone control

Adjust high pitch, clockwise rotation, increase

volume, conversely reduce

11. CH1 low-pitched tone control

Adjust low pitch, clockwise rotation, increase

volume, conversely reduce

12.CH1 volume control

13.MP3 player, with USB & SD card slot

3.1 FRONT PANEL

6

2

3

4

5

6

7

8

9

101112

13

SD/MEDIA

POWER

EQ

MODE VOL+

VOL-

MONITOR

MUTE

MUTE MUTE MUTE MUTE MUTE

Z1

Z1 Z1 Z1 Z1 Z1

Z2

Z2 Z2 Z2 Z2 Z2

Z3

Z3 Z3 Z3 Z3 Z3

Z4

Z4 Z4 Z4 Z4 Z4

LEVEL LEVEL LEVEL LEVEL LEVEL

POWER

/PROT

CH 5

CH 4CH 3CH 2

CH 1

BASS BASS BASS BASS BASSTREBLE TREBLE TREBLE TREBLE TREBLE

-10 -10 -10 -10 -10-10 -10 -10 -10 -10+10 +10 +10 +10 +10+10 +10 +10 +10 +10

ZONE 4ZONE 3ZONE 2

ZONE 1

MONMONMONMON

LEVELLEVELLEVELLEVEL

LEVEL

0dB0dB0dB0dB

0dB

PROTPROTPROTPROT

CLIPCLIPCLIPCLIP

-5-5-5-5-7

-5

-3

-10-10-10-10-10

-15-15-15-15-15

00000

11111

22222

33333

44444

55555

66666

77777

88888

9 9 9 9 9

1010101010

0 0 0 0 0

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

6 6 6 6 6

7 7 7 7 7

8 8 8 8 8

9 9 9 9 9

10 10 10 10 10

ON

OFF

4 ZONE MIXER AMPLIFIER

PX-4120

NOMENCLATURE AND FUNCTIONS

3.2 REAR PANEL

13

12

1415

1.

2.

AC power input socket

Telephone DIP switch and volume control

3. CH5 line signal input and signal gain control

4. CH4 line signal input and signal gain control

5. CH3 microphone signal input and signal gain

control

6. CH2 microphone signal input and signal gain

control

7. CH1 microphone signal input and signal gain

control

8. Remote microphone input port

9. RS232 port

10.LINE, PHANTOM, MIC signal input selector

switch

11.vents

12.

ZONE1-output terminals for connecting

speakers; COM is common terminal, can be

connected to the negative electrode, the

ground, etc.4 terminal can be connected

to constant resistance 4 speaker; 70V

terminal can be connected to 70V constant

voltage speaker; 100V terminal can be

connected to 100V constant voltage speaker

13.ZONE1-LINE signal output

14.Radio antenna port

15.telephone signal input port

16.short circuit PRIORITY, can change the priority

of Telephone and MIC1

17.monitor output port

18.Floating switch

7

1

2

8

3 4 5 6 7 9

10

11

161718

ZONE1

ZONE3

ZONE2

ZONE4

LINE OUT

BAL. / UNBAL.

G

100V

OUTPUT

70V

4

COM

~220V 50-60Hz 800W

T8AL 250V

L L

R R

LINE

PHANTOM PHANTOM PHANTOM

LINE LINE LINEMIC MIC MIC

ZONE

TEL.

VOLUME

GAINGAINGAINGAINGAIN

CH 1CH 2

CH 3

CH 4CH 5

REMOTE MIC INPUT

RS232

1W

8

T

MONITOR PRIORITY

FM ANTGR

TEL.PAGING

LIFT GND

>

4. OPERATION

For the four output terminals, please only use the COM and one of the others. When using 70V and 100V, the speaker must be with transformers. Moreover, and the total power of the speakers should be less than the rated output power.

5. MUTE FUNCTION

Mute Priority Description: MIC1 highest priority telephone remote MIC. Telephone and MIC1 priority can be reset via the rear panel short circuit terminals. Normally, MIC1 is with the highest priority.

6. TROUBLE SHOOTING

Fault phenomenon

There is no sound output when the line connection is good

The cause of the problem

1.No electricity or plug contact undesirable

2.The fuse was burn out

3.The volume is not open

4.No input signal

Normal startup, the alarm triggered

1. Load short circuit or damaged

2. Power supply voltage is not stable, too high or too low

3. Overload

In the normal use of all of a sudden no sound output

1. Temperature is too high, the machine in temperature protection

2. Loose cable connection

>

8

7. CONNECTIONS

7.1 SPEAKER CONNECTIONS

70V/

4

7.2 XLR CONNECTIONS

9

70V 100V

COM 4

100V LINE

70V LINE

70V 100V

COM 4

70V 100V

COM 4

40

(PX-4120)

83

(PX-4120)

8. APPLICATIONS

REAR PANEL CONNECTIONS

10

CD PLAYER

POWER AMPLIFIER

CD PLAYER

RM-4012

POWER AMPLIFIER

ZONE1

ZONE3

ZONE2

ZONE4

LINE OUT

BAL. / UNBAL.

G

100V

OUTPUT

70V

4

COM

~220V 50-60Hz 800W

T8AL 250V

L L

R R

LINE

PHANTOM PHANTOM PHANTOM

LINE LINE LINEMIC MIC MIC

ZONE

TEL.

VOLUME

GAINGAINGAINGAINGAIN

CH 1CH 2

CH 3

CH 4CH 5

REMOTE MIC INPUT

RS232

1W

8

T

MONITOR PRIORITY

FM ANTGR

TEL.PAGING

LIFT GND

9. BLOCK DIAGRAM

11

ZONE ID

1 2 3 4

REMOTE MIC

10. SPECIFICATIONS

MODEL

POWER OUTPUT

OUTPUT INTERFACE

COMSUPTION

MONITOR OUTPUT

LINE1-4 OUTPUT LEVEL

HARMONIC DISTORTION

PX-4120

4X120W

4R,70V/100V

1W/8

1V/600 ( )balance output

SUPPLY VOLTAGE

~220V 50-60Hz

DIMENSION(MM)

NET WEIGHT

GROSS WEIGHT

484X440X132

13.48Kg

11.68Kg

SNR

FREQUENCY

MP3

RECORDING FORMAT

80-16KHz(0/-3dB)

Support MP3 format, max capacity of 32GB

WAV

INPUT SENSITIVITY AND

IMPEDANCE

CH1, 2, 3: 2.5mV/600 ,175mV/10K ,balance input Ch5,6: 350mV/10K ,balance input TEL: 350mV/10K REMOTE MIC: 387mV/10K

TO NE

Bass: 10dB at 100Hz Treble: 10dB at 100Hz

12

>65dB

1%

>

750W

SD FILE SYSTEM

Only FAT16, FAT32, the biggest one partition, does not support folder to store

100

Over

100

Over

100

11. DIMENSIONAL DIAGRAM

UNIT :mm

6

128

25

440

415

132

148

436

484

UNIT :mm

13

SD/MEDIA

POWER

EQ

MODE VOL+

VOL-

MONITOR

MUTE

MUTE MUTE MUTE MUTE MUTE

Z1

Z1 Z1 Z1 Z1 Z1

Z2

Z2 Z2 Z2 Z2 Z2

Z3

Z3 Z3 Z3 Z3 Z3

Z4

Z4 Z4 Z4 Z4 Z4

LEVEL LEVEL LEVEL LEVEL LEVEL

POWER /PROT

CH 5

CH 4CH 3CH 2

CH 1

BASS BASS BASS BASS BASSTREBLE TREBLE TREBLE TREBLE TREBLE

-10 -10 -10 -10 -10-10 -10 -10 -10 -10+10 +10 +10 +10 +10+10 +10 +10 +10 +10

ZONE 4ZONE 3ZONE 2

ZONE 1

MONMONMONMON

LEVELLEVELLEVELLEVEL

LEVEL

0dB0dB0dB0dB

0dB

PROTPROTPROTPROT

CLIPCLIPCLIPCLIP

-5-5-5-5-7

-5

-3

-10-10-10-10-10

-15-15-15-15-15

00000

11111

22222

33333

44444

55555

66666

77777

88888

9 9 9 9 9

1010101010

0 0 0 0 0

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

6 6 6 6 6

7 7 7 7 7

8 8 8 8 8

9 9 9 9 9

10 10 10 10 10

ON

OFF

4 ZONE MIXER AMPLIFIER

PX-4120

ZONE1

ZONE3

ZONE2

ZONE4

LINE OUT

BAL. / UNBAL.

G

100V

OUTPUT

70V

4

COM

~220V 50-60Hz 800W

T8AL 250V

L L

R R

LINE

PHANTOM PHANTOM PHANTOM

LINE LINE LINEMIC MIC MIC

ZONE

TEL.

VOLUME

GAINGAINGAINGAINGAIN

CH 1CH 2

CH 3

CH 4CH 5

REMOTE MIC INPUT

RS232

1W

8

T

MONITOR PRIORITY

FM ANTGR

TEL.PAGING

LIFT GND

SD/MEDIA

POWER

EQ

MODE VOL+

VOL-

MONITOR

MUTE

MUTE MUTE MUTE MUTE MUTE

Z1

Z1 Z1 Z1 Z1 Z1

Z2

Z2 Z2 Z2 Z2 Z2

Z3

Z3 Z3 Z3 Z3 Z3

Z4

Z4 Z4 Z4 Z4 Z4

LEVEL LEVEL LEVEL LEVEL LEVEL

POWER /PROT

CH 5

CH 4CH 3CH 2

CH 1

BASS BASS BASS BASS BASSTREBLE TREBLE TREBLE TREBLE TREBLE

-10 -10 -10 -10 -10-10 -10 -10 -10 -10+10 +10 +10 +10 +10+10 +10 +10 +10 +10

ZONE 4ZONE 3ZONE 2

ZONE 1

MONMONMONMON

LEVELLEVELLEVELLEVEL

LEVEL

0dB0dB0dB0dB

0dB

PROTPROTPROTPROT

CLIPCLIPCLIPCLIP

-5-5-5-5-7

-5

-3

-10-10-10-10-10

-15-15-15-15-15

00000

11111

22222

33333

44444

55555

66666

77777

88888

9 9 9 9 9

1010101010

0 0 0 0 0

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

6 6 6 6 6

7 7 7 7 7

8 8 8 8 8

9 9 9 9 9

10 10 10 10 10

ON

OFF

4 ZONE MIXER AMPLIFIER

PX-4120

PUBLIC ADDRESS SYSTEM

VersionV0.1