4 Ease Troubleshooting: Quickly Find and Recover from a Fault
In the previous chapter, you have successfully configured screen monitoring notifications, which is an essential step. If you want to solve the on-site problems more efficiently, let’s learn how to remotely find the location and cause of a fault after receiving an alarm notification.
VNNOX Care displays the screen connection topology, operating status and fault details, which allows you to quickly find the location and cause of a fault, reducing troubleshooting cost and improving maintenance efficiency.
In this chapter, you will learn about the following:
- All monitoring information options and descriptions on the monitoring details page
- How to find a problem after receiving an alarm notification
- How to quickly recover a screen by using backup files
# 4.1 Introduce Monitoring Details
The screen details page displays the operating status of each component of a screen in real time, including the sending card status, receiving card status, power supply status, temperature, input source, etc., allowing problems to be found quickly.
The following is the description of the parameters of each component of a screen on the screen details page:
- Devices: Displays the input source connection status, sending card working status, hardware device information, etc.
- Power supply: Displays the receiving card voltage.
- Module & cabinet: Displays module resolution and IC.
- Receiving card: Displays the operating status of each receiving card, connection between the cards, total number of receiving cards, receiving card model, receiving card version and more.
- Temperature: Displays the temperature of each receiving card.
# 4.2 Find Problems
Here we use an example to show how to quickly find an on-site problem and recover the screen after receiving an alarm notification.
After receiving an alarm notification, view and click the faulty screen on the monitoring panel to access the screen details page to view the real-time operating status of each component of the screen. The faulty part will be displayed in red and the risky part will be displayed in yellow.
You can obtain the following information from the screen details page:
- Faulty screen name: Washington-Outdoor sign
- Cause of the fault: The receiving cards are faulty.
- Location: 1301 EAGLE, Washington, IL 61571, United States
# 4.3 Quickly Recover a Screen
Send professional maintenance personnel to the site to check the corresponding faulty receiving cards. You will find that it is caused by a hardware failure and cannot be recovered directly.
- Manually replace the faulty receiving cards.
- From VNNOX Care homepage, choose My Services > Screen Management > Backup File to access the backup file page. Download and unzip the system configuration file package that was backed up during the construction of the screen.
For file types and corresponding formats, please see the table below:
| File Name | Description | |
|---|---|---|
| 1 | version.cfg | Version information |
| 2 | sender.cfg | Sending card configuration information |
| 3 | 0_0_3.rcfgx | Receiving card configuration file |
| 4 | selfloader.rcfgx | Receiving card interface display configuration file |
| 5 | scrgxmap.map | Receiving card configuration file and receiving card location mapping file |
| 6 | screen.scr | Screen configuration file |
- According to the known failure cause that is the receiving card hardware failure, load the 0_0_3.rcfgx file (receiving card configuration file) in NovaLCT.
Other types of files are also loaded in NovaLCT for parameter recovery in different scenarios (such as: replacement of sending cards, loss of configuration files, etc.).
- Click Send to Receiving Card. In the displayed dialog box, specify the receiving card, and click Send.
Specify Receiving Card: Send the receiving card configuration information to the specified receiving cards by topology or by physical address.
- After successful sending, click OK to close the prompt box.
The screen is now recovered to normal status.
Let's review what we have learned in this chapter:
- How to accurately find the cause and location of the problems on the monitoring details page after receiving an alarm notification.
- How to quickly recover the screen during the repair process by downloading the system configuration file backed up during construction.
Knowing these skills can greatly improve the efficiency in dealing with on-site problems.
In addition, efficient teamwork is also essential. The next chapter will take you to learn how to create a service team account with VNNOX Care, assign permissions to the account, and associate screens with the account.