I have a DSM300 connected to an E120 mfd (classic) thru a Seatalk HS router. On power-up of the dsm the following occurs:


Immediately followed by amber light

Then 2 amber flashes

Then 8 amber flashes

meanwhile, at the router the right LED is steady while the left flashes - until they both go dark. When they do, the error 'DSM Connection Lost' displays for a few seconds until the process starts over.


It seems like a connection is made, but not maintained. I have tried diffent ports in the router but the behavior is the same.


Can anyone help me determine the cause?








Tags: dsm300, e120

Views: 166

Reply to This

Replies to This Discussion

Welcome to the Raymarine Technical Forum Joe,

This subject was previously addressed in forum discussion Loss of connection - no data.  Should you have addressed each of the items called out within the Moderator's response (including attachment), then it is recommended that the DSM be serviced by Raymarine's Product Repair Center.

I upgraded the dsm to v4.20 and the bootloader to 5.18. The mfd is using v5.52


After upgrading, the error codes have changed ... the device now does the following:

2 amber blinks

1 long red

1 long amber

mfd shows 'DSM Connection Lost'

then after a pause the process starts over


I am reading 12.45v, all connections are tight, I replaced the connection at the breaker.





Thanks for the follow-up information Joe,

Click here to view the Forum discussion which had previously addressed this subject.  Should you have addressed all of the installation items and tightened the socket nuts as specified within the referenced discussion, then it is recommended that the DSM be sent to Raymarine's Product Repair Center to be bench checked / serviced.

Reply to Discussion




  • Add Videos
  • View All


  • Add Photos
  • View All

Latest Activity

Glenn Macdonald replied to Glenn Macdonald's discussion Alarm I can't shut off
"thanks, that's what the problem was "
9 hours ago
Joe replied to Joe's discussion gS MFD Software Update
"This morning I went to our boat and did another System Settings Reset, with the same result as before.  Then I tried again, but this time I did not do a Restore Settings from my SD memory card and instead reset the various system settings…"
20 hours ago
Dave Copeland replied to Dave Copeland's discussion E127 and ST6001
"Sorry for the question, I went back into the old manual and found the term "depth offset" and then searched for that in the new manual.  Thanks again."
20 hours ago
Kevin McIntosh replied to Kevin McIntosh's discussion Configuration capture matrix and s/w locking of Configuration feature request for 'e' Series MFDs
"Moderator ... just a couple of points of clarification please ... further to my s/w version / update inquiry above ... per 'Updating the a, c, e or gS Series MFD Software' and Chapter 6.19 of the User Manual (both v11…"
21 hours ago
Kevin McIntosh replied to Kevin McIntosh's discussion Software Update listings for HD424HD & RS130 GPS
"Moderator ... just a point of clarification please ... further to my s/w update inquiry above, I note the i70 Display has two different s/w packages for e Series MFDs ... from: http://www.raymarine.com/view/?id=3813 there is v6…"
22 hours ago
Derick Sindell replied to Derick Sindell's discussion RL70C - Scanner not responding
"18 inch radome and I have 12 volts at the plug at the radome"
Bajabum replied to Bajabum's discussion A80229 Radar Cable Bad?
"Thanks. I suspect the damaged area is right at the Raynet connector. I'll probably install an RJ45 then use an RJ45 to Raynet adapter cable."
Somers replied to Somers's discussion e-series engine alarm - water in fuel
"Hello, Sorry for the delay - here is the associated file once again. As a point of clarity, I think the command line to get this file should be> powering ON all equipment, including the engines performing the following command on the data master…"
Craig Davis replied to Craig Davis's discussion AIS Silent mode must be turned off from MFD
"I tested the AIS Silent mode switch with the MFD off and there are two situations that I checked. 1. With the MFD and AIS active, I switched the AIS to Silent using the added switch. It switched to Silent mode as indicated by the blue status LED on…"
Craig Davis replied to Craig Davis's discussion Seatalk1 and SeatalkNG, multiple Depth transducers
"1. I reviewed the Nav Table portion of the installation and I do need the 5-way and the Converter. The third STNG port on the 5-way is occupied by the power supply connection. 3. The outcome of the AIS data feed to the VHF radio test was good. The…"
Joe replied to Joe's discussion gS MFD Software Update
"I'll try a data reset again and see if that resolves the issue.  I will let you know."
Dave Copeland replied to Dave Copeland's discussion E127 and ST6001
"Thank you so much for your detailed response.  I purchased and installed the e127 and it works great.  I have one more question, On my old Raymarine and my backup Garmin I am able to enter an adjustment for the depth that results in the…"
Moderator - Raymarine, US replied to Joe's discussion gS MFD Software Update
"Joe, I fully understand the problem which you have described.  As indicated, we have v12.26 running on our systems here in the office and are not experiencing the reported problem.  Hence the problem is specific to your MFDs.…"
Joe replied to Joe's discussion gS MFD Software Update
"I'd like to return to my original comment.  Before I uploaded software update v. 12.26, I was able to power down each of my MFDs using the power button and power up the units by using the power button, all as described by…"
Stephen Beard posted a discussion


The head on my ST4000+ constantly displays the STLK FAIL error message. I have removed the head, compass and tiller arm and have them on a bench test. The compass and tiller arm have been checked and are fine, the connections to the head are fine, there is no seatalk connection, but the error message still persists and the head is locked. Is there anything else I can try?See More
Dave Carnaggio posted a discussion

Raytheon Raypilot 650

I have a Raytheon Raypilot 650 autopilot and want to add a wired or if possible a wireless remote. Would an ST600R wired remote control work with my Raypilot 650?Would a newer wireless remote work if you integrated the seatalk module?Thanks,See More

© 2014   Created by Moderator - Raymarine, US.   Powered by

Badges  |  Report an Issue  |  Terms of Service