1. Introdução
This manual provides instructions for the Amcrest ProHD 720P 4-Channel Video Security System (Model: AMDV7204M-2B2D-W). This system features a 4-channel 720p Tribrid DVR with a pre-installed 1 TB HDD, accompanied by four 720p (1.0MP) cameras. It offers easy smartphone and web-browser access, VGA and HDMI output, and backup to external storage via USB. The system utilizes HDCVI technology for reliable HD video transmission without loss or delay, supporting both analog and IP cameras. A monitor or television is recommended for the initial setup.
2. Conteúdo da embalagem
Verify that all components are present in your package. If any items are missing or damaged, please contact Amcrest support.
- 1 x 4-Channel 720p Tribrid DVR with 1TB HDD
- 2 x 720p (1.0MP) IP67 Bullet Cameras
- 2 x 720p (1.0MP) IP67 Dome Cameras
- Adaptadores de energia para DVRs e câmeras
- Video/Power Cables
- Mouse USB
- Hardware de montagem
- Guia de início rápido

Imagem: Sobreview of the Amcrest ProHD 720P 4-Channel Video Security System components, including the DVR, bullet cameras, dome cameras, cables, and accessories.
3. Recursos do Produto
- HD Over Analog (HDCVI) Technology: Delivers crisp 1280x720p (1280TVL) resolution over existing coaxial infrastructure.
- Câmeras de alta resolução: Includes 4 x HD 1.0MP IP67 heavy-duty metal bullet and dome cameras.
- Largo Viewângulo de entrada: 3.6mm lens provides a 75-degree viewângulo de engate.
- Visão noturna: Powerful IR-LEDs enable clear night vision capabilities.
- Remoto Viewing: Acesse ao vivo viewing and playback on standard web browsers (PC/MAC) and iOS/Android devices via the "Amcrest View" app.
- Configuração Plug & Play: Simplified installation and access.
- Secure Closed-Circuit System: The DVR acts as a single access point for all cameras, enhancing security.
- Pre-installed 1 TB HDD: Records approximately 360 hours on all 4 channels in 720p @ 30fps using motion detection or scheduled recording.
- Backup USB: Feature for convenient data transfer and storage.
- Projeto à prova de intempéries: IP67 rated cameras suitable for indoor/outdoor use.


Imagem: Examples of the Amcrest ProHD 720P bullet camera (left) and dome camera (right) included in the system.
4. Configuração e instalação
4.1 Initial Setup Recommendations
For the initial setup and configuration of your DVR, it is recommended to connect it to a monitor or television using either the VGA or HDMI output. This allows for direct interaction with the DVR's interface.
4.2 DVR Connections
The DVR unit features various ports for connecting cameras, a monitor, network, and power. Refer to the diagrams below for proper connection.

Imagem: Frente e traseira views of the Amcrest ProHD DVR, showing control buttons and various connection ports.

Imagem: Detailed diagram illustrating the various ports on the back of the Amcrest ProHD DVR and their corresponding connections, including VGA, HDMI, Ethernet, USB, Audio In/Out, and Video Input for cameras.
- Adaptador de energia: Connect the provided power adapter to the DC12V input.
- Video Input (Cameras): Connect the BNC connectors from your cameras to the Video In ports (1-4).
- Conexão do monitor: Connect a monitor via the VGA port (PC Monitor) or HDMI port (HD TV).
- Conexão de rede: Connect an Ethernet cable from your router to the Ethernet port for network access.
- Mouse USB: Connect the USB mouse to one of the USB ports for navigation.
- Entrada/saída de áudio: If using external audio devices, connect them to the Audio In/Out ports.
4.3 Instalação da câmera
Mount the IP67 weatherproof bullet and dome cameras in desired indoor or outdoor locations. Ensure the cameras are positioned to cover the intended surveillance areas. Connect the camera's video and power cables to the corresponding inputs on the DVR.
5. Instruções de operação
5.1 Remote Access via Amcrest View Aplicativo
O Amcrest View app allows you to access live viewing and playback from your smartphone or tablet.
- Baixe o "Amcrest View" app from the App Store (iOS) or Google Play Store (Android).
- Open the app and follow the on-screen instructions to add your DVR system.
- Scan the QR Code displayed on your DVR to instantly access live viewing e reprodução.

Imagem: Screenshots of the Amcrest View app interface on various mobile devices, demonstrating remote live viewing of security camera feeds.
5.2 Gravação e Reprodução
The DVR comes with a pre-installed 1 TB hard drive capable of recording 360 hours of footage across all 4 channels at 720p @ 30fps.
- Modos de Gravação: Configure the DVR for continuous recording, scheduled recording, or motion detection recording through the DVR's on-screen menu.
- Reprodução: Acesse foo gravadotage directly from the DVR interface or remotely via the Amcrest View aplicativo ou web navegador.
- Backup USB: Use the USB backup feature to transfer recorded video files to an external storage device.
6. Manutenção
Para garantir o desempenho ideal e a longevidade do seu sistema de segurança, considere as seguintes dicas de manutenção:
- Lentes de câmera: Limpe periodicamente as lentes da câmera com um pano macio e seco.amp pano para remover poeira, sujeira ou manchas de água que possam obscurecer o view.
- Conexões de cabo: Ensure all cable connections to the DVR and cameras are secure and free from corrosion.
- Ventilação DVR: Keep the DVR unit in a well-ventilated area to prevent overheating. Avoid blocking ventilation openings.
- Atualizações de software: Confira a Amcrest website periodically for firmware updates for your DVR to ensure the latest features and security enhancements.
7. Solução De Problemas
If you encounter issues with your Amcrest security system, refer to the following common troubleshooting steps:
- Sem sinal de vídeo:
- Check all camera and DVR power connections.
- Ensure video cables are securely connected to the correct input ports on the DVR.
- Verify the monitor is correctly connected and set to the correct input source (VGA/HDMI).
- Problemas de acesso remoto:
- Ensure the DVR is connected to your network via an Ethernet cable and has internet access.
- Verify your smartphone or tablet has a stable internet connection.
- Confirm the "Amcrest View" app is updated to the latest version.
- Check DVR network settings and port forwarding if necessary (refer to advanced network setup in the full manual or Amcrest support).
- Problemas de gravação:
- Check the DVR's hard drive status to ensure it is functioning correctly and has available space.
- Verify recording schedules and motion detection settings are configured as desired.
- Má qualidade de imagem:
- Limpe as lentes da câmera.
- Ensure cameras are properly focused (if adjustable).
- Verifique a integridade do cabo quanto a danos ou interferências.
For more detailed troubleshooting or persistent issues, please contact Amcrest Customer Support.
8. Especificações
Detailed technical specifications for the Amcrest ProHD 720P 4-Channel Video Security System.

Imagem: Technical specifications sheet for the Amcrest ProHD 720P 4-Channel Video Security System, detailing DVR, bullet camera, and dome camera specifications.
8.1 DVR Specifications (Model: AMDV7204M-2B2D-W)
- Entrada de vídeo: 4 canais BNC
- Saída de vídeo: 1 HDMI, 1 VGA
- Entrada/saída de áudio: 1 canal RCA
- Resolução da tela: Up to 1920x1080
- Resolução de Gravação: 720P (1280x720) @ 30fps per channel
- Disco rígido: 1TB SATA (Pre-installed)
- Interface de rede: RJ45 (10/100M)
- Interface USB: 2 x USB 2.0
- Fonte de energia: CC 12 V
- Dimensões: 16 x 10 x 16 inches (Product Dimensions, likely package size)
- Peso: 0.01 ounces (Item Weight, likely incorrect or package weight)
- Temperatura de operação: 14°F ~ 131°F (-10°C ~ 55°C)
8.2 Camera Specifications (Bullet & Dome)
- Sensor de imagem: 1/2.9" Megapixel CMOS
- Resolução: 1.0 Megapixel (720P)
- Lente: 3.6mm lente fixa
- Viewângulo de entrada: 75 graus
- Visão noturna: IR LEDs, up to 65ft (20m)
- Classificação à prova de intempéries: IP67
- Fonte de energia: CC 12 V
- Temperatura de operação: -22 ° F ~ 140 ° F (-30 ° C ~ 60 ° C)
9. Garantia e Suporte
A Amcrest oferece um Garantia de 1 anos nos EUA for this product. For technical support, warranty claims, or additional information, please visit the official Amcrest website ou entre em contato com o atendimento ao cliente.
Amcrest Website: www.amcrest.com
Amcrest Technologies LLC
3692 Westchase Drive, Houston TX 77042





