Product Overview
This section provides an overview of the monitor and its accessories. It includes a diagram illustrating the monitor, stand, and base, as well as a list of included accessories.
Accessories:
- AC Adapter ×1
- User Manual ×1
- Warranty Notice ×1
- HDMI Cable ×1
- Stand ×1
- L-shaped Screwdriver ×1
- Stand Screw ×2
- Base ×1
- Base Screw ×1
Installation
Follow these steps to install the monitor:
- Attach the stand to the back of the monitor using the stand screws.
- Connect the stand to the base and secure it with the base screw.
- Adjust the monitor's angle forward (up to 5°) or backward (up to 15°). It is recommended to hold the base with one hand while adjusting the monitor with the other to prevent it from falling.
How to Use
Port Description
The monitor features the following ports:
- 1. Power Port: Input
- 2. HDMI Port: Version 1.4. Supports signal formats 480p, 720p, 1080i, 1080p. Maximum refresh rate: 1080p/60 Hz. Compatible with computers, DVD players, cameras, etc.
- 3. VGA Port: Supports signal formats 480p, 720p, 1080i, 1080p. Maximum refresh rate: 1080p/60 Hz. Compatible with computers, DVD players, etc.
- 4. Security Slot: Suitable for a 3 × 7 mm cable lock (sold separately).
Note: If the AC adapter or HDMI cable is damaged, replace it with a genuine part from the manufacturer or after-sales service department.
Button Description
The monitor is operated using a 5-way navigation button.
- Turning On/Off: Press the middle of the 5-way navigation button to turn the monitor on. Press and hold the middle for 2 seconds to turn it off.
Indicator Status
| Indicator State | Status | Meaning |
|---|---|---|
| Dimmed | Off | Off |
| Lit | On | On |
| Blinking | In sleep mode | In sleep mode |
5-way Navigation Button Instructions
| Operation | When Menu is Not Displayed | When Menu is Displayed |
|---|---|---|
| Press Right | - | Switch between menu options/Select |
| Press Up/Down | Open Menu | Switch between menu or submenu options/Adjust values |
| Press Left | - | Return |
Menu Description
The monitor's menu allows for adjustments to brightness, contrast, color temperature, smart modes, input source, and other settings.
| Main Menu | Submenu | Description | Adjustable Range | Default |
|---|---|---|---|---|
| Brightness | Adjust | Adjust the monitor's brightness | 0-100 | 80 |
| Contrast | Adjust | Adjust the monitor's contrast | 0-100 | 75 |
| DCR | Dynamic contrast function | On/Off | Off | |
| Color Temp | Standard | Set to the standard color temperature | Only one color temperature can be selected at a time | Standard |
| Cool | Set to the cool color temperature | Standard | ||
| Warm | Set to the warm color temperature | Standard | ||
| Custom | Manually adjust RGB color temperature | - | - | |
| Smart Modes | Standard Mode | Set to standard mode | Only one display mode can be selected at a time | Standard |
| ECO Mode | Set to eco mode | Standard | ||
| Game Mode | Set to game mode | Standard | ||
| Movie Mode | Set to movie mode | Standard | ||
| Low Blue Light Mode | Set to low blue light mode | Standard | ||
| Input | VGA | Set to VGA signal source | Only one signal source can be selected at a time | / |
| HDMI | Set to HDMI signal source | / | ||
| Language | Select the menu language | English/繁體中文/Español/日本語 | English | |
| Settings | Overdrive | Decrease the monitor's response time | Off/Level 1/Level 2/Level 3 | Off |
| Image Auto-adjust | Adjust the image automatically when using the VGA signal source | / | / | |
| Color Auto-adjust | Adjust the color automatically when using the VGA signal source | / | / | |
| Information | Display monitor related information | / | / | |
| Reset | Restore the monitor to the factory settings | OK/Cancel | Cancel |
Precautions
- Do not use the monitor in damp or humid environments.
- Ensure the monitor is placed on a stable surface.
- Store and use the monitor in a cool, dry, ventilated place, away from heat and radiation sources. Do not block ventilation vents.
- Do not place the monitor on soft surfaces like beds or blankets.
- Check the voltage label on the back of the monitor. If unsure, contact your power company.
- Unplug the monitor when not in use for extended periods to prevent damage from power surges or lightning.
- Do not overload electrical outlets.
- Do not insert foreign objects into the monitor.
- Do not attempt to disassemble or repair the monitor yourself. Contact after-sales service if issues arise.
- Do not pull, twist, or bend the AC adapter cord excessively.
- The screen has a polarizer; do not remove it, as this will void the warranty.
Troubleshooting
| Issue | Possible Cause | Solutions |
|---|---|---|
| Unable to turn on | No power |
|
| Image is dark | Brightness/Contrast not adjusted properly | Adjust the brightness and contrast. |
| Image is jittery or rippled | Interference | Keep the monitor away from electronic devices that may cause electrical interference. |
| Indicator is lit, but no image | No signal |
|
| Monitor displays: Out of range | Resolution is incorrect | Use the specified recommended resolution settings. |
| The image is not in the middle or out of range when using the VGA signal source | Image is not adjusted | Select the Image Auto-adjust from the menu to adjust the image. |
Specifications
| Model | RMMNT238NF |
|---|---|
| Input | 12 V = 2 A |
| Rated Power | 24 W Max. |
| Screen Size | 23.8" |
| Viewable Image Size (Diagonal) | 60.5 cm |
| Dot Pitch | 0.275 × 0.275 mm |
| Brightness | 250 cd/m² (TYP) |
| Contrast | 1000:1 (TYP) |
| Color Gamut | 16.7 M |
| Aspect Ratio | 16:9 |
| Response Time | 6 ms (GTG) |
| Maximum Resolution | 1920 × 1080 |
| Recommended Resolution | 1920 × 1080 |
| Item Dimensions | 539.2(L)×181.2(W)×419.5(H) mm |
| Net Weight | 2.7 kg |
| Operating Temperature | 0°C to 40°C |
| Operating Humidity | 20-90% RH |
| Atmospheric Pressure | 86-106 kPa |
External AC Adapter Specifications
| Parameter | Value |
|---|---|
| Input voltage | 100-240 V AC |
| Input AC frequency | 50/60 Hz, 0.7 A |
| Output voltage | 12.0 V DC |
| Output current | 2.0 A |
| Output power | 24.0 W |
| Average active efficiency | 86.80% |
| Efficiency at low load (10%) | 80.64% |
| No-load power consumption | 0.1 W |
Eye Health
To avoid eyestrain and discomfort, follow these suggestions:
- Keep the monitor at a distance of 20–28 inches (50–70 cm) from your eyes.
- Blink more often to relieve eye fatigue.
- Take a 20-minute break every two hours of monitor use.
- Look at a distant object for at least 20 seconds during breaks.
- Stretch your body to relieve tension in your neck, arms, back, and shoulders.
Low Blue Light Description
This monitor features a low blue light mode to help reduce exposure to blue light, which can cause eye damage. Blue light wavelengths range from 400-480 nm, with harmful wavelengths between 415-455 nm. Enable this mode via the settings menu.
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