1. Introduction
This manual provides detailed instructions for the installation, operation, and troubleshooting of the Portta HDMI Multiviewer Switch 4x1, Model N341QMS. This device allows you to display up to four HDMI input sources on a single output display, offering various viewing modes and seamless switching capabilities.
Image 1.1: Portta HDMI Multiviewer Switch 4x1 with remote control and a connected display showing multiple video sources.
2. Package Contents
Please verify that all items are included in your package:
- HDMI Multiviewer Switch 4x1 (N341QMS) x1
- IR Remote Control x1
- DC Power Adapter x1
- User Manual x1
Image 2.1: Contents of the Portta HDMI Multiviewer Switch package, including the main unit, remote, power adapter, and user manual.
3. Product Features
- Supports 4 HDMI inputs to 1 HDMI output.
- Offers 6 distinct viewing modes: Single Display (Full Screen), Dual Display (Side by Side), Dual Display (Up and Down), 4 Equal Display, 1 Big 3 Small, and Picture-in-Picture (PIP) mode.
- Seamless switching between input sources in full screen mode.
- Supports resolutions up to 1080p.
- Features 720p/1080p scaler up and down functionality.
- HDCP 1.3 compliant.
- Integrated audio extractor with Stereo (3.5mm) and Toslink (Optical) outputs.
- Supports cycle interval for looping pictures in full screen mode.
4. Ports Description
Familiarize yourself with the input and output ports on the device:
Image 4.1: Detailed diagram of the Portta HDMI Multiviewer Switch ports and controls.
Front Panel:
- Power Indicator: Illuminates when the device is powered on.
- IR Receiver: For receiving signals from the remote control.
- Input Indicators (1, 2, 3, 4): Show which input is currently selected or active.
- SCALER Button: Adjusts output resolution (1080p/720p).
- AUDIO Button: Switches output audio between 2.1 CH and 5.1 CH.
- MODE Button: Cycles through the different display modes.
- SELECT Button: Selects the active input source.
Rear Panel:
- HDMI Input 1-4: Connect your HDMI source devices (e.g., PC, PS4, Xbox, Security Camera).
- HDMI Output: Connect to your display device (e.g., HDTV, Projector, Monitor).
- STEREO (3.5mm) Output: Connect to stereo audio systems or headphones.
- TOSLINK Output: Connect to optical audio receivers.
- SERVICE Port: For firmware upgrades and RS232 serial control.
- DC/5V: Connect the provided 5V DC power adapter.
- ON/OFF Switch: Power switch for the device.
5. Setup Instructions
- Power Off Devices: Ensure all HDMI source devices and your display are powered off before making connections.
- Connect HDMI Sources: Connect up to four HDMI source devices (e.g., PC, gaming console, Blu-Ray player, security camera DVR) to the HDMI Input ports (INPUT 1-4) on the multiviewer using HDMI cables.
- Connect Display: Connect your HDMI display (e.g., TV, monitor, projector) to the HDMI Output port on the multiviewer using an HDMI cable.
- Connect Audio (Optional): If you wish to extract audio, connect your stereo audio system or headphones to the STEREO (3.5mm) output, or an optical audio receiver to the TOSLINK output.
- Connect Power: Connect the provided DC 5V power adapter to the DC/5V port on the multiviewer, then plug the adapter into a power outlet.
- Power On: Turn on the multiviewer using the ON/OFF switch. Then, power on your HDMI source devices and your display.
The multiviewer should automatically detect the input signals and display them according to the default viewing mode.
6. Operating Instructions
6.1. Switching Inputs
You can switch between input sources using the front panel buttons or the IR remote control.
- Front Panel: Press the SELECT button to cycle through the active HDMI input sources.
- IR Remote: Use the dedicated input buttons (1, 2, 3, 4) on the remote to directly select an input, or use the SELECT button to cycle.
6.2. Viewing Modes
The multiviewer supports 6 different display modes. These can be cycled using the MODE button on the front panel or the remote control.
Image 6.1: Illustration of the six available display modes, including single, dual, quad, and picture-in-picture options.
- Single Display Mode (Full Screen): Displays one input source across the entire screen. Seamless switching is supported in this mode when all sources are at the same resolution.
- Dual Display Mode (Side by Side): Displays two input sources side-by-side.
- Dual Display Mode (Up and Down): Displays two input sources, one above the other.
- 4 Equal Display Mode: Divides the screen into four equal quadrants, each displaying an input source.
- 1 Big 3 Small Mode: Displays one main input source prominently with three smaller input sources arranged around it.
- PIP Mode (Picture-in-Picture): Displays one main input source with a smaller inset video from another source.
Image 6.2: An example of the '1 Big 3 Small' viewing mode in use, showing one large video feed and three smaller ones.
Image 6.3: An example of Picture-in-Picture (PIP) mode, displaying a main video feed with a smaller inset video.
6.3. Resolution Scaling
Use the SCALER button on the front panel or remote to adjust the output resolution between 1080p and 720p, if needed.
6.4. Audio Output Selection
Press the AUDIO button on the front panel or remote to switch between 2.1 channel and 5.1 channel audio output modes.
Image 6.4: Connection diagram illustrating HDMI inputs, HDMI output to a display, and stereo audio output to external speakers.
6.5. Cycle Interval (Full Screen Mode Only)
In full screen mode, the device supports cycling through inputs at intervals of 1, 3, 5, or 7 seconds. This feature is typically controlled via the remote or specific mode settings not directly labeled on the front panel buttons, but implied by the "cycle interval" feature.
Image 6.5: Visual representation of the cycle interval feature, where the display automatically switches between inputs at set time intervals.
7. Compatibility
The Portta HDMI Multiviewer Switch is compatible with a wide range of HDMI devices:
- Input Devices: Security Cameras, PCs, PS4, Xbox, Nintendo Switch, Blu-Ray Players, Chromecast, Computers, Laptops, Apple TV, Fire Cube, and other HDMI-enabled sources.
- Output Devices: HDTVs, Projectors, Monitors, and other HDMI-enabled displays.
Image 7.1: Diagram showcasing the broad compatibility of the multiviewer with common input and output devices.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No picture on display. |
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| No audio. |
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| Remote control not working. |
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| Flickering or unstable picture. |
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9. Specifications
| Feature | Detail |
|---|---|
| HDMI Inputs | 4 |
| HDMI Output | 1 |
| Supported Resolutions | Up to 1080p |
| HDCP Compliance | HDCP 1.3 |
| Audio Outputs | 3.5mm Stereo, Toslink Optical |
| Viewing Modes | 6 (Full Screen, Dual Side-by-Side, Dual Up-Down, 4 Equal, 1 Big 3 Small, PIP) |
| Seamless Switching | Supported in Full Screen mode (same resolution) |
| Dimensions (L x W x H) | 8.31 x 3.9 x 0.98 inches (21.1 x 9.9 x 2.5 cm) |
| Weight | 1.6 pounds (0.73 kg) |
| Power Supply | DC 5V (included adapter) |
10. Warranty and Support
The Portta HDMI Multiviewer Switch 4x1 comes with a hassle-free 2-year warranty and lifetime technical support.
For any questions or assistance, please contact Portta customer service. Contact information can typically be found on the Portta website or through the retailer where the product was purchased.
Note: Please retain your proof of purchase for warranty claims.
