1. Увод
This manual provides detailed instructions for the setup, operation, and maintenance of your Prechen 12.3-inch Portable Monitor, Model HD-123. Please read this manual thoroughly before using the product to ensure proper functionality and to prevent damage. Keep this manual for future reference.
2. Производ је готовview
The Prechen HD-123 is a 12.3-inch IPS stretched bar display designed for use as a secondary monitor. It features a 1920x720 resolution, 300 nits brightness, 1200:1 contrast ratio, and 178° wide viewing angles. It includes built-in speakers and supports both USB-C and HDMI connectivity.
Портови и контроле

Слика: Крупни план view of the monitor's side, highlighting the 3.5mm headphone jack, power button, menu button, return button, and shortcut keys for brightness and volume. Two USB-C ports and one HDMI port are also visible.
- USB-C портови (x2): One port supports both video transmission and power delivery (full-featured USB 3.1). The other is for power only.
- ХДМИ порт: За видео улаз.
- 3.5 мм прикључак за слушалице: За аудио излаз.
- Дугме за напајање: Укључује/искључује монитор.
- Дугме менија: Приступа менију на екрану (OSD).
- Дугме за повратак: Navigates back in the OSD menu.
- Тастери пречица: Adjust brightness and volume directly.
3. Подешавање
Повезивање монитора
The monitor supports two primary connection methods: USB-C (single cable) and HDMI (with separate power).

Image: Illustration demonstrating how to connect the monitor using a single USB-C cable for both video and power, and an alternative method using an HDMI cable for video and a USB-A to USB-C cable for power.
- USB-C Connection (Single Cable):
- Ensure your device (laptop, smartphone, etc.) has a full-featured USB-C port that supports DisplayPort Alternate Mode and power delivery.
- Connect one end of the provided USB-C to USB-C cable to your device's USB-C port.
- Connect the other end of the USB-C to USB-C cable to the monitor's full-featured USB-C port. The monitor should automatically receive video signal and power.
- HDMI Connection (with separate power):
- Connect one end of an HDMI cable to your device's HDMI output.
- Connect the other end of the HDMI cable to the monitor's HDMI port.
- Connect the provided USB-A to USB-C power cable to a power source (e.g., wall adapter, laptop USB-A port) and the monitor's power-only USB-C port.
ВЕСА Монтажа
The monitor supports 75x75mm VESA mounting for flexible positioning.

Слика: Задњи део view of the monitor, indicating the 75x75mm VESA mounting pattern. A separate stand is shown next to it, demonstrating alternative placement options.
- Locate the four screw holes on the back of the monitor.
- Attach the monitor to a compatible 75x75mm VESA mount or arm using appropriate screws (not included).
4. Упутство за употребу
Укључивање/искључивање
- Press the Power Button to turn the monitor on.
- Press and hold the Power Button for 3 seconds to turn the monitor off.
Он-Сцреен Дисплаи (ОСД) мени
Press the Menu Button to access the OSD menu. Use the shortcut keys (brightness/volume) to navigate and adjust settings. Press the Return Button to exit a submenu or the OSD menu.
- Осветљеност/контраст: Подесите нивое осветљености и контраста екрана.
- Подешавања боја: Промените температуру боје, нијансу и засићеност.
- Извор уноса: Manually select between USB-C and HDMI inputs if auto-detection fails.
- Аудио подешавања: Adjust volume for the built-in speakers or connected headphones.
- Размера: Change the display aspect ratio if needed.
Режими приказа
When connected to a computer, you can configure the display mode through your operating system's display settings:
- Режим дуплирања: Монитор приказује садржај вашег примарног екрана.
- Проширени режим: The monitor acts as an extension of your primary display, providing additional screen space.
- Само други екран: Only the portable monitor displays content.
5. Одржавање
- Чишћење екрана: Користите меку крпу која не оставља длачицеampводом или средством за чишћење екрана. Не прскајте средство за чишћење директно на екран.
- Чишћење Цasing: Обришите монитор цasinОбришите меком, сувом крпом. Избегавајте абразивна средства за чишћење.
- Складиштење: Када се монитор не користи дуже време, чувајте га на хладном и сувом месту, даље од директне сунчеве светлости и екстремних температура.
- Руковање: Handle the monitor with care to avoid dropping or impacting the screen.
КСНУМКС. Решавање проблема
- Нема сигнала:
- Уверите се да су сви каблови безбедно повезани.
- Verify that your device's USB-C port supports video output (DisplayPort Alt Mode) if using a single USB-C cable.
- If using HDMI, ensure the monitor is receiving power via the separate USB-C power cable.
- Try selecting the input source manually through the OSD menu.
- Нема напајања:
- Check the power cable connection and the power source.
- Ensure the power adapter (if used) is functioning correctly.
- Треперећи екран:
- Check cable connections for looseness.
- Пробајте други кабл или порт.
- Уверите се да су графички драјвери вашег уређаја ажурирани.
- Нема звука:
- Adjust the volume through the monitor's OSD menu and your connected device.
- Ensure the audio output is directed to the monitor in your device's sound settings.
7. Спецификације

Image: Visual representation of the monitor's key features: 12.3-inch screen, 85% NTSC color gamut, Plug and Play functionality, 300 cd/m² brightness, 1920x720p resolution, 8-bit color, and 16.7M display colors.
| Феатуре | Спецификација |
|---|---|
| Број модела | ХД-123 |
| Величина екрана | 12.3 инча |
| Панел Типе | ИПС ЛЦД |
| Резолуција | 1920 к 720 пиксела |
| Осветљеност | 300 cd/m² (нита) |
| Однос контраста | 1200:1 |
| Viewинг Англе | 178° |
| Гамут боја | 85% НТСЦ |
| Дубина боје | 8-bit (16.7 Million Colors) |
| Повезивање | 2x USB-C (1 full-featured, 1 power-only), 1x HDMI |
| Аудио | Built-in Speakers, 3.5mm Headphone Jack |
| Монтажа | 75x75mm VESA Compatible |
| Материјал | Метал |
| Димензије производа | 0.59 к 11.8 к 5.1 инча |
| Тежина артикла | 2.14 фунти |
8. Информације о гаранцији
Prechen products are covered by a limited warranty against defects in materials and workmanship. The specific warranty period may vary by region and retailer. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, refer to the warranty card included with your product or contact customer support.
9. Подршка
If you encounter any issues or have questions regarding your Prechen 12.3-inch Portable Monitor, please contact our customer support team. Provide your product model number (HD-123) and a detailed description of the issue for faster assistance.
- Подршка на мрежи: Visit the official Prechen webсајт за често постављана питања и ресурсе за подршку.
- Подршка путем е-поште: Refer to your product packaging or warranty card for contact email.