Operation Guide

15
Product Overview
Control Port and Key Description (TQ-638)-------------------------
Picture 4. Front key and port description of tq-638
VGA is the front-end computer in the signal source, audio and VGA are used together,
HDMI is the front-end HD in the signal source
TV-USB is an all-in-one multimedia USB interface, and USB3.0 is a built-in computer
USB interface
Touch USB is the front signal source, touch USB connection line interface.