ViewSonic PT1080, User Manual

Page: 19 / 25

12
4. Failure analysis and troubleshooting

This chapter allows you to learn how to solve general hardware
and software issues.

Your tablet has underwent comprehensive testing and qualified
system specifications prior to shipment. However, incorrect
operations or negligence during the delivery process may lead to
certain problems.

This chapter provides information that can be used to reference
and identify common hardware and software problems that you
may encounter.

You may handle problems encountered by referring to the
instructions provided in this chapter. If the error or problem
persists, please contact your dealer for service or information.
4.1 Audio problems
Problem Recommended solution
No sound is
being played * Please press the "+" button of the sound mode to
increase the volume.
* Most sound problems are software related. If your
tablet was capable of playing sound normally before,
the problem may be caused by software setting error.
4.2 Display screen problem
Problem Recommended solution
When starting
the system,
a blank dark
screen was
displayed Please make sure that the tablet is not set to [Sleep]
mode. In this mode, the display screen will be turned off
to save power.
The screen is
flickering.
The screen may flicker a few times when starting up or
shutting down the product.
Defective pixels Process limitations in LCD screen manufacturing may
lead to a few pixels that are incapable of showing color
normally (these are commonly called defective pixels).
This is a normal phenomenon and the product can still
be used.