23320
94
Zoom out
Zoom in
Previous page
1/108
Next page
901-10037001/1.1 FS 20/25 Operators Manual
Page 5.22 Maintenance and Troubleshootin
g
Kongsberg Simrad Mesotech Ltd.
Port Coquitlam, BC - Canada
5.5.3.3 PWR/TTM Unit
The PWR/TTM Unit performs the following functions:
1. Generation of DC Voltages to run the LF Sub-assembly electronics.
2. Generation of High DC Voltage supplied to the Deployment Package (see
section 5.4.1).
3. Communication Interface (discussed in previous sections).
An FS20/25 System will be used as the example for an internal power supply failure
to the LF Sub-assemblies. The only apparent symptom is during the Connect/Detect
head process; there would be no head connected to either COM1 or COM2
(swapping cables would give the same result) and neither head would work if a full
system run up was done.
A failure to the high voltage generation can be verified by measuring the voltage at
the 3
rd
wire pigtail (56Vdc, 120Vdc or 200Vdc)
The following chart refers to internal PWR/TTM Unit failures.
Problem Action/Possible Cause
Neither Vertical or FS925 Operates
-LF Sub-assembly Voltage Failure
No indication of heads connected to
either COM1 or COM2 during
Connect/Detect Heads phase
Both Vertical and FS925 heads react
when PWR/TTM turned on
Will require repair by service
representative
No Options: send PWR/TTM ashore
for repair
Neither Vertical or FS925 Operates
-High Voltage Generation Failure
Neither Vertical or FS925 reacts
when PWR/TTM turned on
Heads connected to both COM1 and
COM2 during Connect/Detect Heads
phase
Voltages not present at the 3
rd
wire
pigtail
Will require repair by service
representative
No Options: send PWR/TTM ashore
for repair
94


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Simrad FS20 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Simrad FS20 in the language / languages: English as an attachment in your email.

The manual is 0,8 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info