1. Ro-ràdh
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. Toradh thallview
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.
Puirt is smachdan

Ìomhaigh: Dlùth-shealladh 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.
- Puirt USB-C (x2): One port supports both video transmission and power delivery (full-featured USB 3.1). The other is for power only.
- Port HDMI: For video input.
- Jack Headphone 3.5mm: Airson toradh claisneachd.
- Putan Cumhachd: Tionndaidh an monitor air / dheth.
- Putan Clàr-taice: A’ faighinn cothrom air a’ chlàr-taice Taisbeanadh Air-sgrion (OSD).
- Putan Tilleadh: Navigates back in the OSD menu.
- Iuchraichean ath-ghoirid: Adjust brightness and volume directly.
3. Suidhich
A 'ceangal an Monitor
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.
A ’dìreadh VESA
The monitor supports 75x75mm VESA mounting for flexible positioning.

Ìomhaigh: An cùl 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. Stiùireadh Obrachaidh
Cumhachd air / dheth
- Press the Power Button to turn the monitor on.
- Press and hold the Power Button for 3 seconds to turn the monitor off.
Clàr-taice taisbeanaidh air-sgrion (OSD).
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.
- Gile / coimeas: Atharraich ìrean soilleireachd agus iomsgaradh an taisbeanaidh.
- Roghainnean dath: Atharraich teòthachd dath, dath, agus sùghaidh.
- Tobar a-steach: Manually select between USB-C and HDMI inputs if auto-detection fails.
- Roghainnean Fuaim: Adjust volume for the built-in speakers or connected headphones.
- Co-mheas taobh: Change the display aspect ratio if needed.
Modhan taisbeanaidh
When connected to a computer, you can configure the display mode through your operating system's display settings:
- Modh dùblaichte: The monitor mirrors the content of your primary display.
- Modh leudachaidh: The monitor acts as an extension of your primary display, providing additional screen space.
- An dàrna scrion a-mhàin: Only the portable monitor displays content.
5. Cumail suas
- Glanadh an sgrion: Cleachd clò bog, gun lint beagan dampair a nighe le uisge no le inneal-glanaidh sgrion. Na spraeadh an inneal-glanaidh gu dìreach air an sgrion.
- A’ glanadh an Casing: Sguab às an monitor casing with a soft, dry cloth. Avoid abrasive cleaners.
- Stòradh: Nuair nach eilear ga chleachdadh airson ùine mhòr, stòraich am monitor ann an àite fionnar, tioram, air falbh bho sholas dìreach na grèine agus teòthachd anabarrach.
- Làimhseachadh: Handle the monitor with care to avoid dropping or impacting the screen.
6. A ’dèanamh trioblaid
- Gun chomharradh:
- Dèan cinnteach gu bheil a h-uile càball ceangailte gu tèarainte.
- 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.
- Gun chumhachd:
- Check the power cable connection and the power source.
- Ensure the power adapter (if used) is functioning correctly.
- Sgrion a’ priobadh:
- Thoir sùil air ceanglaichean càball airson sgaoilteachd.
- Feuch càball no port eadar-dhealaichte.
- Ensure your device's graphics drivers are up to date.
- Gun fhuaim:
- 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. Sònrachaidhean

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.
| Feart | Sònrachadh |
|---|---|
| Modail Àireamh | HD-123 |
| Meud sgrion | 12.3 òirlich |
| Seòrsa pannal | IPS LCD |
| Fuasgladh | 1920 x 720 piogsail |
| Gile | 300 cd/m² (nitean) |
| Co-mheas coimeas | 1200:1 |
| Viewann an Ceàrn | 178° |
| Gamut dath | 85% NTSC |
| Doimhneachd dath | 8-bit (16.7 millean dathan) |
| Ceangalachd | 2x USB-C (1 full-featured, 1 power-only), 1x HDMI |
| Fuaim | Built-in Speakers, 3.5mm Headphone Jack |
| A' cur suas | 75x75mm VESA Compatible |
| Stuth | Meatailt |
| Meudan toraidh | 0.59 x 11.8 x 5.1 òirleach |
| Cuideam nì | 2.14 not |
8. Fiosrachadh Barantais
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. Taic
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.
- Taic air-loidhne: Visit the official Prechen weblàrach airson Ceistean Cumanta agus goireasan taic.
- Taic Post-d: Thoir sùil air pasgan no cairt barantais an toraidh agad airson post-d conaltraidh.