ViewSonic PX748-4K 4K UHD Projector User Manual

Table of Contents

1. Introduction
2. Package Contents
3. Setting Up Your Projector
4. Connecting Devices
5. Using the Remote Control
6. Troubleshooting Tips
7. Frequently Asked Questions

1. Introduction

Welcome to your ViewSonic PX748-4K 4K UHD Projector. This projector offers a cinema-like experience with 4K UHD resolution, 4000 lumens brightness, HDR and HLG support, and flexible connectivity options. With a 240Hz refresh rate and 4.2ms low input lag, this projector is perfect for gaming, streaming, and watching movies.

2. Package Contents

Inside the box, you will find the following items:

• PX748-4K 4K UHD Projector
• Power Cable
• USB-C Cable
• Remote Control
• Quick Start Guide

3. Setting Up Your Projector

1. Place the projector on a stable, level surface or mount it to the ceiling using a compatible projector mount (not included).
2. Connect the power cable to the projector and plug it into an electrical outlet.
3. Adjust the projector's position and angle to achieve the desired screen size and image quality. Use the 1.3x optical zoom and automatic vertical keystoning to fine-tune the image.
4. Turn on the projector using the power button on the projector or the remote control.

4. Connecting Devices

Your ViewSonic PX748-4K projector offers multiple connectivity options:

• HDMI: Connect your media players, gaming consoles, PCs, Macs, and other devices using an HDMI cable.
• USB-C: Connect your phone, laptop, or tablet to the projector and charge your devices simultaneously.
• Ethernet LAN: Connect the projector to your home automation system for simplified setup and control.
• 12V Trigger: Connect the projector to external devices such as motorized screens or AV receivers for seamless integration.

5. Using the Remote Control

Insert the included AAA batteries into the remote control. Use the remote to control the following functions:

• Power on/off
• Volume up/down
• Menu navigation
• Input source selection
• Zoom and focus adjustment

6. Troubleshooting Tips

If you encounter issues with your ViewSonic PX748-4K projector, try the following troubleshooting tips:

• Ensure the projector is properly connected to a power source and the power cable is securely connected.
• Check that the connected devices are powered on and their cables are securely connected to the projector.
• Adjust the projector's position, zoom, and focus to achieve the desired image quality.
• Ensure the correct input source is selected using the remote control or the projector's menu.

7. Frequently Asked Questions

What is the input lag of the PX748-4K and how do I activate it?

The PX748-4K operates with a 240Hz refresh rate and a 4.2ms response time (input lag). To enable the 4.2ms input, turn it on via advanced settings and set the refresh rate to 240Hz. Reaction time is based on the DMD chip.

What is the optimal throw distance for a clear 4K image?

The recommended max throw distance to display a clear 4K 300” image is 32 ft.

What is the optimal screen size for a clear 4K image?

The PX748-4K can display a clear 4K image from 30” to 300”.

If a Chromecast is attached to the projector, can I use the projector to supply power?

Yes. A built-in USB power output (5V/1.5A) can be used to supply power to wireless dongles like Chromecast or Amazon Fire TV stick.

Q: What is the resolution of the ViewSonic PX748-4K projector?
A: The ViewSonic PX748-4K projector has a 4K UHD (3840x2160p) resolution.

Q: What is the brightness of the ViewSonic PX748-4K projector?
A: The ViewSonic PX748-4K projector has a brightness of 4000 ANSI Lumens.

Q: Does the ViewSonic PX748-4K projector support HDR and HLG?
A: Yes, the ViewSonic PX748-4K projector supports HDR and HLG.

Q: Can I stream content directly from my phone, laptop or tablet with the ViewSonic PX748-4K projector?
A: Yes, you can stream content directly from your phone, laptop or tablet while also charging your devices simultaneously with the USB-C port.

Q: What is the input lag of the ViewSonic PX748-4K projector and how do I activate it?
A: The ViewSonic PX748-4K projector operates with a 240Hz refresh rate and a 4.2ms response time (input lag). To enable the 4.2ms input, turn it on via advanced settings and set the refresh rate to 240Hz. Reaction time is based on DMD chip.

Q: What is the optimal throw distance for a clear 4K image with the ViewSonic PX748-4K projector?
A: The recommended max throw distance to display a clear 4K 300” image is 32 ft.

Q: What is the optimal screen size for a clear 4K image with the ViewSonic PX748-4K projector?
A: The ViewSonic PX748-4K projector can display a clear 4K image from 30” to 300”.

Q: Does the ViewSonic PX748-4K projector support 3D video?
A: Yes, the ViewSonic PX748-4K projector supports 3D video. Some older units may need a firmware update to add this feature, but all currently shipping units are ready to go.

Q: What is included in the box with the ViewSonic PX748-4K projector?
A: The ViewSonic PX748-4K projector comes with the projector, power cable, USB-C cable, remote control, and quick start guide.

Q: What connectivity options does the ViewSonic PX748-4K projector have?
A: The ViewSonic PX748-4K projector supports most media players, gaming consoles, PCs, Macs, and mobile devices with input options such as HDMI, USB-C, Ethernet Lan, 12V Trigger and more.

Q: Does the ViewSonic PX748-4K projector have Bluetooth?
A: No, the ViewSonic PX748-4K projector does not have Bluetooth.

Q: Does the ViewSonic PX748-4K projector have a split screen feature?
A: No, the ViewSonic PX748-4K projector does not have a split screen feature natively.

Q: Can I use the ViewSonic PX748-4K projector to supply power to wireless dongles like Chromecast or Amazon Fire TV stick?
A: Yes. A built-in USB power output (5V/1.5A) can be used to supply power to wireless dongles like Chromecast or Amazon Fire TV stick.