1. Ifihan
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. Ọja Ipariview
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.
Awọn ibudo ati awọn idari

Aworan: Isunmọ 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.
- Awọn ibudo USB-C (x2): One port supports both video transmission and power delivery (full-featured USB 3.1). The other is for power only.
- Ibudo HDMI: Fun titẹ sii fidio.
- Jack agbekọri 3.5mm: Fun igbejade ohun.
- Bọtini agbara: Tan-an/pa a atẹle naa.
- Bọtini Akojọ: Wọlé sí àkójọ Ìfihàn Ìbòjú (OSD).
- Bọtini Pada: Navigates back in the OSD menu.
- Awọn ọna abuja Adjust brightness and volume directly.
3. Eto
Nsopọ Atẹle
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.
VESA iṣagbesori
The monitor supports 75x75mm VESA mounting for flexible positioning.

Aworan: The ru 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. Awọn ilana Iṣiṣẹ
Titan / Paa
- Press the Power Button to turn the monitor on.
- Press and hold the Power Button for 3 seconds to turn the monitor off.
Lori-iboju Ifihan (OSD) Akojọ aṣyn
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.
- Imọlẹ/Itọtọ: Adjust display luminance and contrast levels.
- Eto awọ: Ṣe àtúnṣe iwọn otutu awọ, àwọ̀, àti ìtẹ́lọ́rùn.
- Orisun igbewọle: Manually select between USB-C and HDMI inputs if auto-detection fails.
- Eto ohun: Adjust volume for the built-in speakers or connected headphones.
- Ipin Ipin: Change the display aspect ratio if needed.
Awọn ipo ifihan
When connected to a computer, you can configure the display mode through your operating system's display settings:
- Ipò Àdáwòkọ: Àwòrán náà ṣe àfihàn ohun tí ó wà nínú ìfihàn àkọ́kọ́ rẹ.
- Fa Ipo: The monitor acts as an extension of your primary display, providing additional screen space.
- Second Screen Only: Only the portable monitor displays content.
5. Itọju
- Ninu iboju: Lo asọ asọ, ti ko ni lint die-die dampened pẹlu omi tabi a iboju regede. Maṣe fun sokiri regede taara sori iboju.
- Ninu ile Casing: Pa atẹle naa nu casing pẹlu asọ ti o gbẹ. Yago fun abrasive ose.
- Ibi ipamọ: When not in use for extended periods, store the monitor in a cool, dry place, away from direct sunlight and extreme temperatures.
- Mimu: Handle the monitor with care to avoid dropping or impacting the screen.
6. Laasigbotitusita
- Ko si ifihan agbara:
- Rii daju pe gbogbo awọn kebulu ti sopọ ni aabo.
- 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.
- Gbiyanju lati yan orisun titẹ sii pẹlu ọwọ nipasẹ akojọ aṣayan OSD.
- Ko si Agbara:
- Check the power cable connection and the power source.
- Ensure the power adapter (if used) is functioning correctly.
- Iboju didan:
- Ṣàyẹ̀wò àwọn ìsopọ̀ okùn fún ìtúpalẹ̀.
- Gbiyanju okun ti o yatọ tabi ibudo.
- Ensure your device's graphics drivers are up to date.
- Ko si Ohun:
- 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. Awọn pato

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.
| Ẹya ara ẹrọ | Sipesifikesonu |
|---|---|
| Nọmba awoṣe | HD-123 |
| Iwon iboju | 12.3 inches |
| Panel Iru | IPS LCD |
| Ipinnu | 1920 x 720 awọn piksẹli |
| Imọlẹ | 300 cd/m² (nits) |
| Ipin Itansan | 1200:1 |
| Viewigun igun | 178° |
| Awọ Gamut | 85% NTSC |
| Ijinle Awọ | 8-bit (16.7 Mílíọ̀nù Àwọ̀) |
| Asopọmọra | 2x USB-C (1 full-featured, 1 power-only), 1x HDMI |
| Ohun | Built-in Speakers, 3.5mm Headphone Jack |
| Iṣagbesori | 75x75mm VESA Compatible |
| Ohun elo | Irin |
| Ọja Mefa | 0.59 x 11.8 x 5.1 inches |
| Iwọn Nkan | 2.14 iwon |
8. atilẹyin ọja Information
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. Atilẹyin
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.
- Atilẹyin Ayelujara: Visit the official Prechen webaaye fun FAQs ati awọn orisun atilẹyin.
- Imeeli Atilẹyin: Refer to your product packaging or warranty card for contact email.