VG3420C - Screen VIEWSONIC - Free user manual and instructions
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| Product Type | Ultra-Wide Curved Monitor |
| Brand | ViewSonic |
| Model | VG3420C |
| Screen Size | 34 inches |
| Panel Type | VA |
| Resolution | 3440 x 1440 (UWQHD) |
| Aspect Ratio | 21:9 |
| Curvature | 1500R |
| Refresh Rate | 100 Hz |
| Response Time | 4 ms (GTG) |
| Brightness | 350 cd/m² |
| Contrast Ratio | 3000:1 |
| Viewing Angles | 178° horizontal / 178° vertical |
| Color Support | 16.7 million colors |
| Connectivity | 2x HDMI, 1x DisplayPort, 1x USB-C (Power Delivery 60W), 4x USB-A 3.0 |
| Adjustability | Height (150 mm), Tilt (-5° to +20°), Swivel (±30°), Pivot (90°) |
| Power Consumption | 45 W (typical), 0.5 W (standby) |
| Weight | 12.6 kg (with stand) |
| Dimensions (W x H x D) | 812 mm x 537 mm x 245 mm (with stand) |
| Special Features | Built-in speakers (5W x2), Flicker-Free, Blue Light Filter |
| Maintenance | Clean the screen with a soft, dry microfiber cloth; do not use alcohol or abrasive cleaners |
| Safety | Use the included power cord and adapter; keep ventilation vents unobstructed |
| Spare Parts and Repairability | Contact a ViewSonic authorized service center for replacement parts and repairs |
| General Information | VESA compatible (100 x 100 mm), included cables (HDMI, DisplayPort, USB-C) |
Frequently Asked Questions - VG3420C VIEWSONIC
What is the native resolution and recommended refresh rate for the ViewSonic VG3420C?
The native resolution is 3440 x 1440 (Ultra-Wide QHD) with a maximum refresh rate of 100 Hz. To achieve this, connect your device via DisplayPort or USB-C and set the monitor to 100 Hz in the OSD menu.
How do I use the USB-C connection for display and charging?
Connect a laptop or phone that supports USB-C with DisplayPort Alt Mode to the USB-C port. The cable can carry video, data, and provide up to 60W of power delivery to charge the connected device.
Does the VG3420C have built-in speakers?
Yes, the monitor includes two 5-watt speakers. To use them, select the monitor as the audio output device in your computer's sound settings.
What is the best way to clean the curved screen?
Turn off the monitor and unplug it. Use a soft, dry microfiber cloth to gently wipe the screen in a circular motion. For stubborn spots, lightly dampen the cloth with water. Avoid using chemicals or excessive pressure.
Can I mount the VG3420C on a VESA arm?
Yes, the monitor supports VESA 100x100 mm mounts. Remove the stand and attach a compatible VESA bracket to the rear of the monitor.
How do I enable the blue light filter?
Press the OSD button, navigate to the Color menu, select 'Blue Light Filter', and choose a level (e.g., 20, 40, or 70). This reduces eye strain during long sessions.
Why is there no signal on the monitor?
Check that all cables are firmly connected. Then press the Input button to select the correct input source (HDMI, DisplayPort, or USB-C). Restart your computer and make sure the graphics card output is supported.
How do I perform a factory reset on the VG3420C?
Open the On-Screen Display (OSD), go to the Setup menu, and select 'Reset'. Confirm to restore all settings to factory defaults.
What is the warranty period for this monitor?
ViewSonic offers a 3-year limited warranty for parts and labor for the VG3420C, as well as a limited resolution guarantee. Contact ViewSonic support for details on your region.
How do I adjust the height and tilt of the stand?
The ergonomic stand allows height adjustment (150 mm), tilt (-5° to +20°), swivel (±30°), and pivot. Use firm, steady pressure to change the position while holding the base to avoid tipping.
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USER MANUAL VG3420C VIEWSONIC
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Product information
Brand : VIEWSONIC
Model : VG3420C
Category : Screen