Quadrox QGuard Installation Manual - Manual (Page 64)

GuardNVR Installation Manual 64
Version 4.4 Series
7 Troubleshooting
GuardNVR is a reliable system and is designed and tested for durability. However, problems
may occur, following procedures in this chapter can help to determine the cause.
You should become familiar with this chapter. Knowing what might go wrong can help
prevent problems from occurring.
7.1 Problem solving process
Resolving problems will be much easier if you observe the following guidelines:
Stop immediately when you recognize a problem exists. Further action may result in
data loss or damage. You may destroy valuable problem-related information that can
help solve the problem.
Observe what is happening. Write down what the system is doing and what actions you
performed immediately before the problem occurred.
The questions and procedures offered in this chapter are meant as a guide, they are
not definitive problem solving techniques. Many problems can be solved simply, but
a few may require help from your installer. If you find you need to consult your
dealer or other consulting person, be prepared to describe the problem in as much
detail as possible.
7.1.1 Preliminary checklist
Consider the simplest solution first. The items in this section are easy to fix and yet can cause
what appears to be a serious problem.
Make sure you turn on all peripheral devices. This includes your printer and any other
external device you are using.
Before you attach an external (none USB) device shut down the GuardNVR. When you
turn the GuardNVR back on it recognizes the new device.
Make sure all options are set properly in the corresponding setup program.
Check all cables. Are they correctly and firmly attached? Loose cables can cause signal
errors.
Inspect all connecting cables for loose wires and all connectors for loose pins.
Check that your CD/DVD-ROM is correctly inserted.