I have a Raymarine RL70C with software version 4.11 connected to a Raymarine L760 with the chart slots, software version 4.11 also. Neither unit recognizes the other one is on the network. I have sent the L760 in for a sonar problem. Raymarine fixed that problem and tested the HSB2 communication. They said working properly. I have changed the cable and done the resistance tests on the pins. All look normal. Is there anything else I can try before sending the RL70C in for testing? 

Views: 300

Reply to This

Replies to This Discussion

I would like to follow ... just a thought are Seatalks connected ? and HSB terminators ? I am sure one of the techs will address this soon

Welcome to the Raymarine Technical Forum Larry,

  • Verify that the hsb² network is properly terminated (i.e. 2 hsb2 inline terminators only and the terminators are installed in the end units).  If the display's hsb2 port is gray, then no hsb2 inline terminator has been installed in the display's port.  If the display's hsb2 port is black, then you are looking are the male end of a hsb2 inline terminator.  
  • Verify that all Pathfinders are PLUS units and have v4.11 software installed (it has been noted that both of your displays have v4.11 software)
  • Verify that all hsb cables are securely seated and have proper strain relief
  • Verify that there are no damaged hsb² cables by visually inspecting and performing continuity tests
  • Verify that there are no sharp bends (<6 inch diameter) in the hsb² cables
  • If the system contains more than 2 hsb² nodes, attempt fault isolation to identify the faulty component (i.e. connect 2 nodes at time to verify interaction between the components)
  • Verify that no more than 2 C-Map SW+ regions are being served on the hsb² network. 
  • Perform resistance tests and continuity tests of the hsb² components:
    • Terminators (uninstalled from hsb² port): 120 +/- 2 ohms across the HSVB_POS & HSVB_NEG pins (see page 8-24 of the hsb2 Plus Series Color LCD Display Owner's Manual
    • Pathfinders (power off): 2200 +/- 50 ohms across the HSVB_POS & HSVB_NEG pins
    • Terminators (installed): values should drop by approximately 5 ohms from the value measured prior to installation
    • For multiple display systems, with the system's hsb² displays reconnected to the hsb² network and the Pathfinder PC disconnected from the hsb² network, measure the resistance of the network through the hsb² cable:

Displays Resistance










If these tests identify the problematic component, then it should be sent to Raymarine's Product Repair Center to be serviced. If all of these items are within the specifications listed above and fault isolation fails to identify the problematic component, send each of the hsb² components and as much of cabling as can easily be removed to Raymarine's Product Repair Center to be tested as a system.

Reply to Discussion




  • Add Videos
  • View All


  • Add Photos
  • View All

Latest Activity

Andy Davidson-Grant replied to Keith Swinburne's discussion ST6001+ apparently showing Reciprocal course
"Hi, I had the same problem. Heading suddenly started reporting circa 170 degrees deviation. Tried recalibrating the compass countless times, including trying to 'force' a manual setting by entering it on the autopilot, but whenever I try…"
3 hours ago
Brian Passmore replied to Keith Swinburne's discussion ST6001+ apparently showing Reciprocal course
"Virtually the same occurred yesterday after installing an a97, i70 MFD, & new i60 wind instrument two days ago. All worked well on day 1, but on day 2 the course & vessel icon was as described above. I had spent time the evening of day 1…"
4 hours ago
Kenneth Watson replied to Kenneth Watson's discussion Dragonfly 7 Slow Boot Time
6 hours ago
Thierry replied to Thierry's discussion Wiring Autopilot St-4000 to new MFD a77 serie
"So the autopilot is powered by the backbone converter alone? Is that internal power wire big enough for the 12v pilot??"
8 hours ago
Gary Hamilton replied to Gary Hamilton's discussion p70 won't update
"I did reply to this post but it seems to have vanished. The two sh files that were part of the file I found on the support site and your bootloader pkg file as listed above did NOT work on the p70. The three files were the only files on the sd…"
10 hours ago
Frank Edison replied to Frank Edison's discussion ST6002 MOTOR BURNED OUT
"8000 lbs (4 ton)."
10 hours ago
Will Ritch-Smith replied to Will Ritch-Smith's discussion EV1 wheel jerking back and forth
"It looks like I do not.  My display is 2.12 and the latest is 2.17.   I'm a little confused about my EV-1--my notes say the software I have is 1.11, but it doesn't appear on the Raymarine website that there is such a version. At…"
11 hours ago
Erich Schulze replied to Ken Peckham's discussion Classic C-80 and Digital RADAR compatibility question
"I also found this info regarding compatibility with the c80 MFD.  http://raymarinec80.com/c80_radar_compatibility/  For an 18"Radome it lists M92650-S and E52065.  No mention of the 52010-S that you specify above.  The…"
11 hours ago
Billy Simmons replied to Billy Simmons's discussion Autopilot problems
"p70/R v2.17 EV-1. V1.11 ACU-200 v1.10 E-127. V14.36 Just updated everthing about a week ago I have tried all the response levels"
12 hours ago
FRANCO Campana replied to FRANCO Campana's discussion Autopilot Evolution ACU 100
"Thank youu. Should I send the rest of the equipment?"
13 hours ago
Billy Simmons replied to Billy Simmons's discussion Autopilot problems
" "
13 hours ago
Nathan replied to Nathan's discussion A68 mfd to spx10 via seatalk ng
"It would be good to teach everyone in your tech department that. I was specifically searching for an ap that would not require the use of a separate control panel. I don't know anything about ap's so when I called the tech department and…"
13 hours ago
Moderator - Raymarine, US replied to Doug's discussion Navionics plus card no sonar charts A78
"Doug, Wi-Fi connection issues may be caused by large separation distances between the MFD and mobile device or problems with the MFD's Wi-Fi circuitry.  Once Wi-Fi connection is established, synchronization issues may be caused by poor…"
14 hours ago
Moderator - Raymarine, US replied to Alex Hill's discussion Fusion-Link a/c/e series support for Fusion MS-BB300 black box system
"You're welcome."
14 hours ago
Underway - Raymarine, US replied to Stephen R Madsen's discussion Daisy chain WITHOUT backbone
"How far are the displays away from one another?  When daisy chaining displays (max 3), the maximum spur length can not exceed 6m, (18 feet) if it is inside this then this would work."
14 hours ago
Underway - Raymarine, US replied to david garman's discussion Can the P70 replace the ST60+ compass display
"The p70 can display a couple items of data, but it only shows in very small boxes and should not and can not be used as a direct replacement for an ST60+ display.  The i70 is a multifunction instrument display and can display different…"
14 hours ago

© 2015   Created by Moderator - Raymarine, US.   Powered by

Badges  |  Report an Issue  |  Terms of Service