Introdución
This manual provides essential information for the safe and efficient operation of your Prechen 23.8 Inch 144Hz Frameless Gaming Monitor, Model HD-238. Please read this manual thoroughly before using the product and retain it for future reference.
Información importante de seguridade
Observe the following safety precautions to prevent damage to the monitor and ensure your safety:
- Non expoña o monitor á choiva nin á humidade para evitar riscos de incendio ou descargas eléctricas.
- Non abra o monitor casing. Non hai pezas que o usuario poida reparar no interior. Encomende calquera mantemento a persoal de servizo cualificado.
- Coloque o monitor sobre unha superficie estable e plana para evitar que caia.
- Asegúrate de que haxa unha ventilación axeitada arredor do monitor. Non bloquees as aberturas de ventilación.
- Use só o adaptador de corrente que se inclúe co monitor.
- Desconecte o cable de alimentación da toma de corrente durante tormentas eléctricas ou cando non o use durante períodos prolongados.
- Evite colocar obxectos pesados no cable de alimentación.
- Keep the monitor away from direct sunlight, heat sources, and extreme temperatures.
Contido do paquete
Comprobe o contido do paquete ao desembalar. Se falta algún elemento ou está danado, póñase en contacto co seu vendedor.
- Prechen 23.8 Inch Monitor
- Soporte para monitor (base e pescozo)
- Adaptador de alimentación
- Cable de alimentación
- Cable HDMI
- Cable DisplayPort
- Manual de usuario
Produto rematadoview

Figura 1: Fronte view of the Prechen 23.8 Inch Gaming Monitor, showcasing its frameless design and display area.

Figura 2: Traseira view of the monitor, showing the VESA mount area and ventilation slots.
Portos do panel traseiro

Figura 3: Illustration of the monitor's rear panel, detailing the available ports and VESA mounting points. The dimensions for VESA mounting are 75mm x 75mm.
- Porto DP: DisplayPort input (Up to 144Hz refresh rate).
- Porto HDMI: HDMI input (Up to 144Hz refresh rate).
- Entrada de audio: 3.5mm audio input jack.
- Porto USB: USB input (for data or peripheral connection, specific functionality not detailed).
- Porto DC: Power input for the DC adapter.
Instrucións de configuración
1. Montaxe do soporte
- Retire con coidado o monitor da súa embalaxe, manténdoo protexido sobre unha superficie branda.
- Fixe o colo do soporte ao panel traseiro do monitor. Asegúrese de que encaixa firmemente no seu lugar ou de que estea fixado con parafusos se os hai.
- Attach the stand base to the stand neck, securing it with the thumb screw or screws from underneath.
- Coloque o monitor montado sobre unha mesa estable e plana.
Alternatively, for VESA mounting: The monitor supports 75mm x 75mm VESA mounts. Remove the stand and attach a compatible VESA bracket (not included) to the monitor's rear panel.
2. Conectando a un ordenador
Escolla un dos seguintes métodos de conexión:
- Conexión DisplayPort: Connect one end of the DisplayPort cable to the DP port on your monitor and the other end to the DisplayPort output on your computer's graphics card. This connection supports up to 144Hz refresh rate.
- Conexión HDMI: Connect one end of the HDMI cable to the HDMI port on your monitor and the other end to the HDMI output on your computer's graphics card. This connection also supports up to 144Hz refresh rate.
Nota: Ensure your graphics card supports the desired resolution and refresh rate for optimal performance.
3. Potencia de conexión
- Conecte o adaptador de corrente ao porto CC do monitor.
- Plug the power cable into the power adapter.
- Conecte o outro extremo do cable de alimentación a unha toma de corrente con conexión a terra.
Instrucións de funcionamento
Encendido/apagado
Press the power button, usually located on the rear or bottom right of the monitor, to turn the monitor on or off. The power indicator light will illuminate when the monitor is on.
Menú de visualización en pantalla (OSD).
The OSD menu allows you to adjust various monitor settings. The control buttons are typically located on the rear or bottom right of the monitor.
- Press the OSD menu button to open the menu.
- Usa os botóns de navegación (arriba/abaixo/esquerda/dereita) para navegar polas opcións do menú.
- Press the select/enter button to confirm a selection or enter a sub-menu.
- Press the exit button to close the OSD menu or go back to the previous level.
Configuración principal do OSD
- Brillo/Contraste: Axusta a luminancia xeral e a relación de contraste da pantalla.
- Configuración de cor: Modifica a temperatura da cor, a gama e os niveis RGB individuais.
- Selección de entrada: Cambia manualmente entre as entradas DisplayPort e HDMI.
- Frecuencia de actualización: Ensure your monitor is set to 144Hz in both the OSD and your computer's display settings for optimal gaming performance.
- AMD FreeSync: Enable this feature in the OSD menu and your AMD graphics card settings to synchronize the monitor's refresh rate with the GPU's frame rate, reducing screen tearing and stuttering.
- Low-Blue Light: Activate this mode to reduce blue light emissions, which can help alleviate eye strain during prolonged use.
- Tempo de resposta: Adjust the response time setting (e.g., 2ms) for reduced motion blur in fast-paced games.

Figura 4: Visual representation of the monitor's color capabilities, including 99% sRGB coverage and 16.7 million color display for enhanced visual depth.
Mantemento
Limpeza do monitor
- Desconecte sempre o monitor da toma de corrente antes de limpalo.
- Use un pano suave e sen pelusa lixeiramente damplavado con auga ou cun limpador de pantallas non abrasivo.
- Non pulverices o limpador directamente sobre a pantalla. Aplícao primeiro sobre o pano.
- Evite usar benceno, disolvente, produtos de limpeza con base de amoníaco ou axentes de limpeza abrasivos, xa que poden danar a pantalla ou aasing.
Almacenamento
Se vai gardar o monitor durante un período prolongado, desconecte todos os cables, embáleo na súa embalaxe orixinal (se a hai) e gárdeo nun lugar fresco e seco, lonxe da luz solar directa e de temperaturas extremas.
Resolución de problemas
Se tes problemas co monitor, consulta os seguintes problemas e solucións comúns:
| Problema | Causa posible | Solución |
|---|---|---|
| Sen poder | Power cable not connected; Power outlet not working; Monitor power button off. | Ensure power cable is securely connected to monitor and outlet. Check if the power outlet is functional. Press the monitor's power button. |
| Sen sinal | Cable de vídeo non conectado; Fonte de entrada incorrecta seleccionada; Ordenador non acendido ou en modo de suspensión. | Verify video cable (HDMI/DP) is securely connected to both monitor and computer. Select the correct input source via the OSD menu. Ensure computer is powered on and not in sleep mode. |
| Pantalla parpadeante | Incorrect refresh rate; Cable issue; Graphics driver issue. | Check monitor and computer display settings for correct refresh rate (144Hz). Try a different video cable. Update graphics drivers. |
| Image distorted or blurry | Resolución incorrecta; problema co cable. | Ensure display resolution is set to 1920x1080p. Check video cable connections. |
| AMD FreeSync non funciona | Not enabled in OSD or graphics card settings; Incompatible graphics card. | Enable FreeSync in the monitor's OSD menu and in your AMD Radeon Software settings. Ensure your graphics card supports FreeSync. |
Especificacións técnicas
| Característica | Especificación |
|---|---|
| Marca | Prechen |
| Número de modelo | HD-238 |
| Tamaño da pantalla | 23.8 Inches (24 Inches stated in feature bullets) |
| Tipo de panel | IPS |
| Resolución | 1920 x 1080 (FHD 1080p) |
| Taxa de actualización | 144 Hz |
| Tempo de resposta | 2 milisegundos |
| Relación de aspecto | 16:9 |
| Gama de cores | 99 % sRGB |
| Tecnoloxía de sincronización adaptativa | AMD FreeSync Premium |
| Conectividade | 1x DisplayPort, 1x HDMI, 1x USB, 1x Audio In |
| Características especiais | Blue Light Filter, Flicker-Free, Frameless Design |
| Compatible con soporte VESA | 75 x 75 mm |
| Dimensións do produto | 1 x 55 x 36 cm (sen soporte) |
| Peso do elemento | 2.5 quilogramos |
Garantía e Soporte
Prechen products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Prechen website. Please have your model number (HD-238) and purchase information ready when contacting support.




