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Maintenance procedures
Installing and maintaining software
Updating the Operating Panel support applications(Mk2)
For the Operating Panel to communicate with the Processor Unit, certain interface applications are required.

About this manual
The purpose of this publication is to provide the descriptions, procedures and detailed parameter explanations required to allow for safe and efficient use of the ST90 system. The publication also provides you with a thorough understanding of the parameters and adjustments provided by the ST90 system.
Simrad ST90
Operating procedures
Maintenance procedures
- Lowering and hoisting the transducer from the sonar room
- Setting up the interfaces to peripheral devices
- Inserting the installation parameters
- Installing and maintaining software
  - Installing a new version of the operating software
    A dedicated wizard is used to install the software. The operating software for the ST90 system must be downloaded on a separate computer.
  - Removing the operating software
    If you wish to replace your Processor Unit with a new model, or simply do not wish to use the ST90 system any longer, you can remove the software. Software removal may also be required during an upgrade.
  - Updating the online help system
    Installed on your ST90 system, you will find a comprehensive context-sensitive online help system. The help system is updated periodically. You can then update your ST90 system with the new online help.
  - Adding online help in a new language
    Installed on your ST90 system, you will find a comprehensive context-sensitive online help system. The help system may be provided in a new language. You can then update your ST90 system with the new online help.
  - Obtaining and installing a software license for additional functionality
    The ST90 system does not need any software licenses to operate. However, specific software license codes "unlocks" additional functionality.
  - Setting up the Operating Panel (Mk2)
    The Operating Panel offers all necessary control functions for normal operation. Before it can be put to use, the Mk2 Operating Panel must be configured to permit Ethernet communication between the panel and the Processor Unit.
  - Using more than one Operating Panel to control the sonar(Mk2)
    A secondary Operating Panel may be connected to the Processor Unit. This may be useful in conjunction with a second display if you wish to control the ST90 system from two different locations on your vessel.
  - Using a single Operating Panel to control more than one sonar(Mk2)
    Since the Mk2 Operating Panel uses Ethernet to communicate with the Processor Unit, you can use one single panel to control more than one sonar system.
  - Updating the Operating Panel support applications(Mk2)
    For the Operating Panel to communicate with the Processor Unit, certain interface applications are required.
  - Updating the firmware on the Operating Panel(Mk2)
    Whenever required the firmware in the Operating Panel can be updated to include new functionality or to correct software errors.
- Testing the noise conditions and the sonar functionality
- Preventive maintenance
User interface
Menu system
Functions and dialog boxes
Concept descriptions
Technical specifications
The technical specifications summarize the main functional and operational characteristics of the ST90 system. They also provide information related to power requirements, physical properties and environmental conditions.
Datagram formats
The ST90 system can send and receive information to and from several different peripherals. All transmissions take place as datagrams with data sentences. Each datagram has a defined format and length.
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Updating the Operating Panel support applications (Mk2)

For the Operating Panel to communicate with the Processor Unit, certain interface applications are required.

The Operating Panel is installed as specified in the Installation manual. The Processor Unit is turned on. The following specific items are required for this task:

Personal computer
USB flash drive
Computer mouse (Optional)
Computer keyboard (Optional)

Neither tools nor instruments are required. This procedure is made for the Microsoft^® Windows^® 10 operating system. It is assumed that you are familiar with this operating system.

The following applications are used:

HIDS
MSS
SPS
vJoy Device Driver

Refer to the Software changes chapter in the software release note to see which applications that needs to be updated.

Procedure

On the personal computer:
1. Download the new software version.
2. Unpack the ZIP file to access the executable application file.
3. Copy the application file to a USB flash drive.
Make the following preparations.
1. If applicable: Connect the keyboard and the mouse to USB sockets on the Processor Unit.
2. Insert the USB flash drive.
Select Power Off on the top bar.
In the Power Off dialog box, select Exit to Operating System to close the ST90 program.
Uninstall the application.
1. From the Start button in the lower left corner, open the Control Panel.
2. In the Control Panel, select App.
3. Select Programs and Features.
4. On the list provided, locate the software you shall uninstall.
  Refer to the Software changes chapter in the software release note to see which applications that needs to be updated.
5. Select it, then select Uninstall.
6. Click the [X] in the top right corner to close the Control Panel.
Install the new version of the application.
1. From the Windows^® Start button, right-click to open File Explorer.
2. Locate the executable setup file (.exe).
  Refer to the Software changes chapter in the software release note to see which applications that needs to be updated.
3. Copy the file to a temporary folder on the "C" drive.
4. Double-click on the file to install the new version of thew application.
5. Close File Explorer.
6. Remove the USB flash drive.
On the Processor Unit desktop, double-click the ST90 icon to start the program.
If applicable: Disconnect the keyboard and the mouse from the Processor Unit.