Once again I will state that you need to look at the system as a
whole. The display head my not have any problems, but there could be
issues with devices on the SeaTalk bus. This possibly includes a
SeaTalk GPS antenna and any other instruments.

I have a C80 which runs the same software that is on the C120 and I've
never seen any of the issues that you describe. The only difference
between the C80 and the C120 (that I know of) is the size of the
display. Since RayMarine has already replaced the system board on the
display, this makes me believe that the problem lies elsewhere within
the *system*.

Who installed the system for you? Have you had the installer out to
figure out what's going on? What other devices are in the SeaTalk
bus? Have you reviewed the output of the diagnostics such as SeaTalk
message errors? As far as RayMarine tech support, I have always found
them very reasonable to deal with if you approach them with a
reasonable attitide.

-- Geoff

On Jan 29, 9:14 am, GeoffSchultz
wrote:
Once again I will state that you need to look at the system as a
whole. ...

It seems quite possible that the refresh and positioning problems
could be a result of network issues. A bad cable or connection or a
faulty talker could be overwhelming the network with bad packets.
This happens on LANs all the time and is one of the potential
downsides of networked instrument systems.

... As far as RayMarine tech support, I have always found
them very reasonable to deal with if you approach them with a
reasonable attitide. ...

I guess the tech support must be hit or miss. I've never gotten any
satisfaction from them and I've tried hard. Also, my experience with
my Raytheon radar has been mixed at best and I would not recommend it.
Although, that's a moot point as they have moved on the their new
tech.

--Tom.

wrote:
On Jan 29, 9:14 am, GeoffSchultz
wrote:
Once again I will state that you need to look at the system as a
whole. ...

It seems quite possible that the refresh and positioning problems
could be a result of network issues. A bad cable or connection or a
faulty talker could be overwhelming the network with bad packets.
This happens on LANs all the time and is one of the potential
downsides of networked instrument systems.

... As far as RayMarine tech support, I have always found
them very reasonable to deal with if you approach them with a
reasonable attitide. ...

I guess the tech support must be hit or miss. I've never gotten any
satisfaction from them and I've tried hard. Also, my experience with
my Raytheon radar has been mixed at best and I would not recommend it.
Although, that's a moot point as they have moved on the their new
tech.

--Tom.

His friend has the same issues on his. Two faulty talkers?
Gordon

On Jan 29, 9:54 am, Gordon wrote:
... His friend has the same issues on his. Two faulty talkers? ...

That wouldn't surprise me, but bad cables are more common. It is
super easy to make a bad cable and the installer will probably have
had to make up several in each network. Of course, Raymarine could
have screwed-up the cables, too. In my experience, now very dated,
faulty cables made up the majority of problems on LANs followed by bad
NICs. We occasionally got whole lots of faulty NICs... Switch
failure was pretty rare.

-- Tom.

On Jan 29, 11:14 am, GeoffSchultz
wrote:

Once again I will state that you need to look at the system as a
whole. The display head my not have any problems, but there could be
issues with devices on the SeaTalk bus.

Excellent points. I did have the GPS unit checked out with the E120,
and they claimed it to be working fine. Also on the SeaTalk bus are
the Wind/Speed/Depth instruments. When the E120 was off my boat, they
performed flawlessly.


I have a C80 which runs the same software that is on the C120 and I've
never seen any of the issues that you describe.

I'm certainly very happy for you that your system is working well.
Why mine is flawed is something that seems to confound my dealer as
well as the Raymarine distributor here in Canada.


Have you reviewed the output of the diagnostics such as SeaTalk
message errors?

That's another excellent suggestion. I'll look into this and report
back. It sure would have been nice if one of the Raymarine techs had
suggested it. But, as I've stated in other posts, they've ignored my
emails for over 60 days now. And believe me, my emails were very,
very politely written. All bitterness you or others might detect in
my videos was definitely not in the emails - and only exist in the
videos because this struggle has been going on all summer long and
I've been forced into taking my grievances public.

On Jan 30, 12:10 am, cognisense wrote:
On Jan 29, 11:14 am, GeoffSchultz
wrote:

Once again I will state that you need to look at the system as a
whole. The display head my not have any problems, but there could be
issues with devices on the SeaTalk bus.

Excellent points. I did have the GPS unit checked out with the E120,
and they claimed it to be working fine. Also on the SeaTalk bus are
the Wind/Speed/Depth instruments. When the E120 was off my boat, they
performed flawlessly.

I have a C80 which runs the same software that is on the C120 and I've
never seen any of the issues that you describe.

I'm certainly very happy for you that your system is working well.
Why mine is flawed is something that seems to confound my dealer as
well as the Raymarine distributor here in Canada.

Have you reviewed the output of the diagnostics such as SeaTalk
message errors?

That's another excellent suggestion. I'll look into this and report
back. It sure would have been nice if one of the Raymarine techs had
suggested it. But, as I've stated in other posts, they've ignored my
emails for over 60 days now. And believe me, my emails were very,
very politely written. All bitterness you or others might detect in
my videos was definitely not in the emails - and only exist in the
videos because this struggle has been going on all summer long and
I've been forced into taking my grievances public.

You have every right to be upset. I have avoided the new Raymaine
plotters because they are based on a Windows OS. Well reliable a
mobile OS is not designed to be mission critical. I believe part of
your problem may be the Navionics cards themselves. Specifically the
memory chip may be causing the back plain bus to hang causing the
screen blanks. May I suggest you try a card that is known to be in
good operating order. Also remove all the interfaces to the unit
except the GPS. Note that you can check the GPS with a laptop using
its NEMA interface. With respect to the radar being outof synce you
may need to add a Gyro to your system.

Good luck.

Bob
"Nightingale" Beneteau 331