1. Introduzione
This manual provides comprehensive instructions for the installation, operation, and maintenance of your COMMAX CDV-43M Fine View Doorphone Monitor. Please read this manual thoroughly before installation and use to ensure correct operation and to prevent damage to the device. Keep this manual for future reference.
2. Caratteristiche di u produttu
- Schermu LCD TFT di 4.3 pollici: Provides clear video display for monitoring and communication.
- Video Talk and Door Lock Release: Enables two-way video communication and remote door unlocking for both individual and public entrances.
- Espansibilità di u sistema: Supports connection of up to 2 monitors, 2 cameras, and 2 interphones for a comprehensive security system.
- Titanium Metal Design: Features a rigid and elegant metal finish for enhanced durability and aesthetic appeal.
- LED Backlights: Ensures a brighter and clearer screen display.
- High-Sensitive MIC: Delivers improved sound quality for clear communication.
- Blue Light Touch Buttons: Intuitive and responsive touch controls with captivating blue illumination.
- PAL/NTSC Convertible: Compatible with various video signal standards.

Figura 2.1: Fronte view of the COMMAX CDV-43M Fine View Doorphone Monitor, showcasing its 4.3-inch LCD screen and touch-sensitive control buttons. The monitor features a sleek titanium metal design with a blue panel.
3. Installazione è Setup
3.1. Cuntenutu di u pacchettu
Prima di l'installazione, verificate chì tutti i cumpunenti sò presenti:
- COMMAX CDV-43M Monitor
- Bracket di Muntagna
- Viti è Tappi di Muru
- Manuale d'uso (stu documentu)
- Cavu di putenza
3.2. Muntà u Monitor
Choose a suitable location indoors, away from direct sunlight, heat sources, and moisture. Ensure the wall is strong enough to support the monitor's weight.
- Aduprate a staffa di muntatura cum'è mudellu per marcà i punti di perforazione nantu à u muru.
- Perforà i buchi è inserisci tappi di muru.
- Fissate u supportu di muntatura à u muru cù e viti furnite.
- Before attaching the monitor, complete all necessary wiring connections.

Figura 3.1: Technical drawing illustrating the dimensions of the COMMAX CDV-43M monitor. The diagram shows a width of 180 mm and a height of 180 mm, with the 4.3-inch LCD screen measuring 109 mm diagonally.
3.3. Wiring Connections
Ensure power is disconnected before making any wiring connections. Refer to the wiring diagram for proper connection of cameras, interphones, and power.
- Connect the outdoor camera unit(s) to the designated camera input ports on the monitor.
- If using interphones, connect them to the interphone ports.
- For multi-unit installations, an MD-KAM4 distributor may be required (as shown in Figure 3.2).
- Connect the AC power cable (AC 100V-240V) to the monitor and then to a power outlet.
- Attaccate cù cura u monitor à u supportu muntatu.

Figura 3.2: Schematic diagram demonstrating the connection of the COMMAX CDV-43M monitor to multiple door cameras and interphones via an MD-KAM4 distributor. This illustrates a typical multi-unit installation setup.
4. Operating Instructions
4.1. Funzionamentu Basic
- Accensione / spegnimentu: The monitor powers on automatically when connected to power. There is no dedicated power button.
- Risponde à una Chjama: When a visitor presses the call button on the outdoor unit, the monitor will ring and display the visitor's image. Press the Rispondi button (typically a phone icon) to initiate video talk.
- Monitoraghju: Press u Monitor button (typically an eye or camera icon) to view the outdoor camera feed without a call.
- Sbloccamentu di a serratura di a porta: Durante una chjama o mentre si ascolta, appughjà u buttone Serratura di a porta button (typically a key icon) to remotely unlock the connected door.
- Interphone Communication: If interphones are connected, press the Interphone button (if available) to communicate with other indoor units.
4.2. Touch Button Functions
The monitor features blue light touch buttons for various functions. Refer to the icons on the monitor for specific actions:
- Person Icon: Likely for visitor call or general settings.
- Circle Icon: Could be for monitoring or menu access.
- Icona chjave: For door lock release.
- Grid/Square Icon: Potentially for multi-camera view or system settings.
- Icona di u telefunu: For answering calls or initiating communication.
5. Mantenimentu
5.1. Pulizia
To maintain the monitor's appearance and functionality:
- Wipe the screen and body with a soft, dry, lint-free cloth.
- Per i segni ostinati, tamponate leggermente.ampSciacquate u pannu cù acqua. Evitate l'usu di prudutti chimichi aggressivi, detergenti abrasivi o solventi.
- Assicuratevi chì nisun liquidu ùn entre in u dispusitivu.
5.2. Cura generale
- Evite l'esposizione di u monitor à temperature estreme, umidità, o luce diretta di u sole.
- Ùn pruvate micca di smuntà o riparà l'unità da per voi. Cuntattate un persunale di serviziu qualificatu.
- Mantene u monitor luntanu da campi magnetichi forti.
6. Risoluzione di prublemi
If you encounter issues with your COMMAX CDV-43M monitor, refer to the following common problems and solutions:
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisuna maghjina nantu à u screnu | No power; Camera not connected; Faulty camera/cable. | Check power connection; Verify camera wiring; Test with another camera if possible. |
| Nisun audio durante a chjama | Microphone/speaker issue; Wiring problem. | Check wiring connections; Ensure microphone/speaker are not obstructed. |
| Serratura di a porta micca sbloccataasing | Door lock not connected; Faulty lock mechanism; Wiring issue. | Verify door lock wiring; Check the door lock's functionality independently. |
| U monitor ùn risponde micca à u toccu | Temporary software glitch; Dirty screen. | Disconnect and reconnect power; Clean the screen surface. |
If the problem persists after attempting these solutions, please contact Commax customer support or a qualified technician.
7. Specificazioni
| Feature | Specificazione |
|---|---|
| Mudellu | CDV-43M |
| Size Display | 4.3 pollici TFT LCD |
| Alimentazione elettrica | AC 100V-240V |
| Tipu di cuntrollu | Pulsante Touch |
| Sistema Video | PAL/NTSC Convertible |
| Dispositivi supportati | 2 Monitors, 2 Cameras, 2 Interphones |
| Pesu di l'articulu | 760 g |
| Dimensioni di u pacchettu | 30.2 x 25.4 x 7.2 cm |
| Tipu di fonte di luce | LED |
| Frame Rate | 30 frames per seconda |
| Wattage | 5 watts |
8. Garanzia è Support
The COMMAX CDV-43M Fine View Doorphone Monitor is covered by a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions, including warranty period and coverage details. For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Commax customer support through their official websitu o centri di serviziu autorizati.
Per più assistenza è infurmazioni nantu à u produttu, visitate u situ ufficiale Commax websitu.





