Vivaldi MZ4120S Operation Manual

4 ZONE AMPLIFIER MIXER

OPERATION MANUAL

Please follow the instructions in this manual to get the best results from this product.

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

MZ4120S

- 3 -

INDEX

1. SAFETY WARNINGS 4

2. FEATURES 7

3. NAMES AND FUNCTIONS 8

3.1 FRONT PANEL 8

3.2 BACK PANEL 9

4. OPERATION 10

4.1 FIRST TIME STARTUP 10

4.2 “CH1” : “CH5” OPERATING INSTRUCTIONS 10

4.3 MONITOR OUTPUT 10

4.4 MICROPHONE BASE INPUT (BM4) 10

4.5 TELEPHONE INPUT OPERATING INSTRUCTIONS 11

4.6 MULTISOURCE DEVICE OPERATING INSTRUCTIONS 11

4.7 RS232 12

4.8 CH1, CH2, CH3 FUNCTION MODES 14

5. PRIORITY FUNCTION 14

6. CONNECTIONS 14

6.1 SPEAKER CONNECTIONS 14

7. TROUBLESHOOTING 15

8. APPLICATIONS 16

9. BLOCK DIAGRAM 17

10. TECHICAL SPECIFICATION 18

11. DIMENSIONAL SCHEME 19

- 4 -

WARNING

WARNING

CAUTIONS

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

It indicates a potentially hazardous situation, which, if mishandled, could re­sult in minor or moderate damage to the person and/or property damage.

The safety symbols and messages described below are used in this manual to prevent personal
injury and property damage, which could be the improper use. Before putting the product into opera­tion, read this manual and understand the safety symbols and messages, in order to be fully aware
of the potential risks.

• Do not expose the unit to rain or an environment where it could be wet by water and/or other

liquids, since in this way could cause re or electric shock.

• Use this device only with the voltage specied on the unit. Using a higher voltage than specied
may result in re or electric shock.

• Do not cut, bend, damage, or modify the power cord. Also, avoid using the power cord in the vici­nity of heat sources and never place heavy objects (including the unit itself), on the power cord,

since in this way could cause re or electric shock.

• Be sure to replace the protective cover of the connection terminals once it has been completed.
Because the speaker connections are of high voltage, never touch these terminals to avoid
electric shock.

• Make sure the connection to the ground terminal is correctly made, in order to avoid electric
shock.

• Do not install or mount the device in an unstable position, such as on a wobbly table or on an

inclined surface. Could lead to the fall of the amplier and cause injury and/or property damage.

Safety symbols and conventional messages

When installing the amplier:

1. SAFETY WARNINGS

• Before use, be sure to read carefully the instructions in this section.

• Be sure to observe the instructions contained in this manual, as well as the conventions of sa­fety, the safety symbols and messages regarded as very important precautions.

• We also suggest that you keep this instruction manual handy for your own future reference.

- 5 -

CAUTIONS

• Should it occur the following abnormal situations while using the amplier, turn off the power im-
mediately, unplug the power cord from the AC outlet and contact your nearest dealer. Do not try

to start up again the amplier because it could lead to re or electric shock.

9 Amplier comes smoke or a strange smell.
9 Water or any metal object has entered in the amplier.
9 The unit falls, or the frame of the appliance breaks down.
9 The power cord is damaged, as well as exposure of the core, disconnection etc.
9 The amplier is malfunctioning (no Sound.).

• Do not open nor remove the cover of the unit to prevent re or electric shock, because inside of
the device contains high-voltage components. Contact your local dealer of trust for each main­tenance.

• Do not place cups, bowls, or other containers with liquid or metal objects on the amplier. If they

accidentally lter inside the unit, possibly resulting in re or electric shock.

• Do not insert or drop metallic objects or ammable materials in the ventilation slots of the unit, it
could cause re or electric shock.

• Do not insert or remove any plug from the electrical power supply with wet hands, may cause
electric shock.

• By unplugging the power cord, be sure to grasp the plug. Do not act on the cable. Put the unit

into operation, with the damaged cord can cause re or electric shock.

• While moving the amplier, be sure to remove its power cord from the wall outlet. Moving the unit
with the power cord plugged in could damage the cord itself and cause a re or electric shock.

• Do not block ventilation openings. May result in overheating and re.

• Avoid installing the amplier in humid and dusty areas, expose to direct sunlight, environments

that generate smoke or steam, as well as locations near heat sources. This could cause a re or

electric shock.

While using the amplier:

Installation of the amplier:

- 6 -

• Do not place heavy objects on the device, it could cause the fall or failure, causing bodily injury
and/or property damage. In addition, the object itself can be damaged.

• Make sure that the volume control is set to minimum before turning on the power. The high audio
product loud when power on, can damage your hearing.

• Do not operate the unit for extended duration of the sound distortion. This is a malfunction indi-

cation, which can cause overheating and re.

• Contact your local retailer for periodic cleaning. The accumulation of dust for an extended period

can cause re or damage.

• If dust builds up on the power plug or the AC wall outlet, it could result in a re. They should be
cleaned periodically. Also, make sure the plug is inserted securely into the wall outlet.

• Turn off the power and unplug the power cord from the AC wall outlet for safety reasons, during

cleaning or when you leave the unit unused for 10 days or more, otherwise it may cause re or

electric shock.

Using the amplier:

The power supply must be protected by a magneto-thermal switch with a contact separa-

tion of at least 3 mm.