Viking VK-M2W Paging Amplifier User Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Viking VK-M2W Paging Amplifier. Please read this manual thoroughly before using the device to ensure proper functionality and safety.

The Viking VK-M2W is designed to amplify audio signals for paging systems, offering adjustable volume control and compatibility with multiple speakers. It is a robust solution for various audio amplification needs.

Important Safety Information

Always disconnect power before making any connections or performing maintenance.
Ensure proper ventilation around the amplifier to prevent overheating.
Do not expose the device to moisture or extreme temperatures.
Use only the power supply provided or a compatible power supply with the correct voltage and current ratings.
Refer all servicing to qualified service personnel.

Package Contents

Verify that all items are present in the package:

Viking VK-M2W Paging Amplifier Unit
Power Supply
One Weather Resistant 25AE Paging Horn (if included in your specific package)
This User Manual

Product Features

Adjustable volume control for precise audio output.
Capable of powering up to three 8 ohm speakers.
Equipped with secure screw terminal connections for reliable wiring.
Includes a dedicated power supply for immediate use.
Designed for compatibility with optional additional 25AE paging horns or 30AE ceiling speakers.

Setup and Installation

Follow these steps to properly install and connect your VK-M2W Paging Amplifier.

Front view of the Viking VK-M2W Paging Amplifier showing connections and controls.

Figure 1: Front Panel of the Viking VK-M2W Paging Amplifier.

The image displays the front panel of the Viking VK-M2W Paging Amplifier. At the top, 'VOLUME' is indicated. Below it, the brand 'VIKING' and product name 'PAGING AMP MODEL M2W' are visible, along with 'VIKING ELECTRONICS HUDSON, WI 54016'. A red LED labeled 'POWER' is in the center. At the bottom, screw terminal connections are labeled 'SPEAKER OUT', 'AUDIO IN', and '13.8 VAC', with numbered terminals 1 through 6. Terminals 5 and 6 are marked with '+' and '-' respectively.

Connection Diagram and Terminal Descriptions:

Refer to Figure 1 for the location of each terminal.

Terminals 1 & 2 (13.8 VAC): Connect the included 13.8 VAC power supply to these terminals. Ensure correct polarity if specified by the power supply, though these terminals are typically AC input.
Terminals 3 & 4 (AUDIO IN): Connect your audio source (e.g., a music player, microphone pre-amp, or phone system audio output) to these terminals. This is the input for the audio signal to be amplified.
Terminals 5 & 6 (SPEAKER OUT): Connect your 8 ohm speakers to these terminals. Terminal 5 is the positive (+) output, and Terminal 6 is the negative (-) output. The amplifier can power up to three 8 ohm speakers. Ensure correct polarity for optimal sound quality.

Installation Steps:

Mounting: Choose a suitable location for the amplifier, ensuring adequate ventilation and protection from moisture. The unit can be mounted using screws through the mounting tabs (if present, not visible in image, but common for such devices).
Speaker Connection: Wire your 8 ohm speakers to the SPEAKER OUT terminals (5 and 6), observing polarity (+ to 5, - to 6). You can connect up to three 8 ohm speakers.
Audio Input Connection: Connect your audio source to the AUDIO IN terminals (3 and 4).
Power Connection: Connect the 13.8 VAC power supply to the 13.8 VAC terminals (1 and 2).
Initial Power Up: Once all connections are secure, plug the power supply into a wall outlet. The POWER LED (red dot) on the amplifier should illuminate.

Operation

The VK-M2W Paging Amplifier is designed for straightforward operation.

Power Indicator: The red LED labeled "POWER" will illuminate when the unit is receiving power.
Volume Control: The "VOLUME" knob, located at the top of the unit (as seen in Figure 1), allows you to adjust the output level of the amplified audio. Turn clockwise to increase volume and counter-clockwise to decrease volume.
Audio Playback: Once powered and connected to an audio source and speakers, the amplifier will output the incoming audio signal through the connected speakers. Adjust the volume to your desired listening level.

Troubleshooting

Problem	Possible Cause	Solution
No power (POWER LED off)	Power supply not connected or faulty; outlet not active.	Check power supply connections. Test the outlet with another device. Replace power supply if faulty.
No audio output	Incorrect speaker wiring; faulty audio source; volume too low; faulty speakers.	Verify speaker polarity and connections. Ensure audio source is playing and connected correctly. Increase volume. Test speakers with another audio device.
Distorted audio	Volume too high (clipping); impedance mismatch; faulty audio source.	Reduce volume. Ensure speakers are 8 ohm. Test audio source.
Low volume output	Volume knob set too low; weak audio input signal.	Increase volume using the knob. Ensure audio source output level is adequate.

Specifications

Model	VK-M2W
Brand	Viking
Manufacturer	Viking Electronics
Product Dimensions (L x W x H)	9 x 5.75 x 5.75 inches
Item Weight	0.01 ounces
Power Input	13.8 VAC (Power supply included)
Speaker Output	Powers up to three 8 ohm speakers

Maintenance

The Viking VK-M2W Paging Amplifier requires minimal maintenance to ensure long-term performance.

Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or aerosols.
Ventilation: Ensure that the ventilation openings (if any) are not blocked to prevent overheating.
Storage: If storing the unit for an extended period, disconnect it from power and store in a cool, dry place.

Warranty and Support

For warranty information or technical support, please refer to the documentation provided with your purchase or contact Viking Electronics directly. Keep your purchase receipt as proof of purchase.

Manufacturer: Viking Electronics

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Viking VK-M2W