ELRO DV477W-M 7-inch Additional Indoor Monitor User Manual

1. Product Overview

The ELRO DV477W-M is an additional indoor monitor designed to expand your existing ELRO DV477W or DV477IP series video intercom system. This 7-inch color monitor allows for clear two-way communication with visitors at your door and provides convenient door opening functionality.

Key Features:

7-inch (18 cm) color display for clear video.
High-quality microphone and speaker for two-way audio communication.
Door opening function for convenient access control.
Modern design with brushed aluminum finish.
Compatible with ELRO DV477W and DV477IP series video intercoms.

Package Contents:

ELRO DV477W-M 7-inch Indoor Monitor
Mounting Bracket
15m 4-wire Electrical Cable
Power Adapter

Image 1.1: The ELRO DV477W-M 7-inch indoor monitor, featuring a sleek design and control buttons.

Image 1.2: Diagram showing the dimensions of the ELRO DV477W-M monitor, approximately 6.3 inches (16 cm) in height.

Image 1.3: The included 15-meter 4-wire electrical cable for connecting the monitor to the intercom system.

2. Setup and Installation

This section provides instructions for installing your ELRO DV477W-M additional indoor monitor. Ensure all power is disconnected from your existing intercom system before beginning installation.

2.1 Safety Precautions:

Always disconnect power before installation or maintenance.
Consult a qualified electrician if you are unsure about any wiring procedures.
Do not expose the monitor to moisture or extreme temperatures.

2.2 Mounting the Monitor:

Choose a suitable indoor location for the monitor, ensuring it is within reach of the 15m cable and a power outlet.
Use the provided mounting bracket as a template to mark drilling points on the wall.
Drill holes and insert wall plugs if necessary.
Secure the mounting bracket to the wall using appropriate screws.

2.3 Wiring Connections:

Connect the 4-wire electrical cable from your existing ELRO DV477W or DV477IP outdoor unit/main monitor to the corresponding terminals on the back of the DV477W-M additional monitor. Ensure correct polarity for each wire (e.g., power, ground, audio, video). Refer to your main intercom system's manual for specific wiring diagrams.
Connect the power adapter to the monitor's power input and then plug it into a wall outlet.
Carefully attach the monitor to the mounted bracket.

Note: The 4-wire cable typically carries power, ground, audio, and video signals. Incorrect wiring can damage the device or prevent proper operation.

3. Operating Instructions

Once installed and powered on, the ELRO DV477W-M monitor is ready for use. It functions as an extension of your main intercom system.

3.1 Receiving a Call:

When a visitor presses the doorbell button on the outdoor unit, the monitor will ring and display the visitor's image.
Press the Answer button (usually indicated by a telephone icon) to initiate two-way audio communication.
To end the conversation, press the End Call button.

3.2 Opening the Door:

During a call, or when viewing the visitor, press the Door Unlock button (often depicted as a key or unlock icon) to activate the electronic door lock connected to your main intercom system.
The door will unlock for a short period, allowing the visitor to enter.

3.3 Monitoring:

Some systems allow you to manually activate the camera on the outdoor unit to view the entrance area without a visitor pressing the doorbell. Refer to your main intercom system's manual for this feature.

4. Maintenance

Proper maintenance ensures the longevity and optimal performance of your ELRO DV477W-M monitor.

4.1 Cleaning:

Wipe the monitor screen and casing with a soft, dry, lint-free cloth.
For stubborn marks, slightly dampen the cloth with water. Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the finish.
Do not spray cleaning liquids directly onto the monitor.

4.2 General Care:

Keep the monitor away from direct sunlight, heat sources, and areas with high humidity.
Ensure ventilation openings (if any) are not blocked.
Avoid dropping or subjecting the monitor to strong impacts.

5. Troubleshooting

If you encounter issues with your ELRO DV477W-M monitor, refer to the following common problems and solutions.

Problem	Possible Cause	Solution
No image or sound on the monitor.	Power adapter not connected or faulty. Incorrect wiring between monitor and outdoor unit/main system. Main intercom system is off or faulty.	Check if the power adapter is securely plugged in and receiving power. Verify all 4-wire connections are correct and secure. Ensure your main ELRO intercom system is powered on and functioning.
Image is distorted or unclear.	Loose or damaged video wire. Interference from other electronic devices. Faulty outdoor camera unit.	Check the video wire connection. Relocate the monitor or outdoor unit away from potential interference sources. If the issue persists, the outdoor camera unit may require inspection.
No audio during communication.	Loose or damaged audio wires. Microphone or speaker fault.	Check the audio wire connections. Ensure the volume settings on the monitor (if available) are not muted or too low.
Door unlock function does not work.	Incorrect wiring to the electronic door lock. Faulty door lock mechanism. Issue with the main intercom system's door release relay.	Verify the wiring for the door unlock function according to your main system's manual. Test the door lock independently if possible. Consult the main intercom system's troubleshooting guide.

If these solutions do not resolve the issue, please contact ELRO customer support.

6. Specifications

Feature	Detail
Model Number	DV477W-M
Manufacturer	ELRO
Display Size	7 inches (18 cm)
Product Dimensions (L x W x H)	21.5 x 2.5 x 15 cm
Weight	386 grams
Material	Aluminum
Included Components	Monitor, Mounting Bracket, 15m 4-wire Electrical Cable, Power Adapter
Batteries Required	No
Compatibility	ELRO DV477W and DV477IP series video intercom systems

7. Warranty and Support

ELRO products are designed for reliability and performance. For specific warranty information, please refer to the documentation included with your original ELRO video intercom system or visit the official ELRO website.

If you require technical assistance, have questions about installation, or need to report a fault, please contact ELRO customer support. Contact details can typically be found on the ELRO website or in your product packaging.

Note: Availability of spare parts information is currently unavailable.