well the plotter displays the data on the radar screen
if I dosconned the plotter from the radar, How will I know if it
locked up?

THanks
Mark



On Mon, 27 Jun 2005 03:20:22 -0000, (Gudmundur)
wrote:

In article ,
says...

WEll ... let me give you more details

The GPS is a Raytheon 398 and works great.
The chart plotter is a Raytheon 601 ( I have 2 of these units)

The Radar is a Raytheon R41 XX


Let me assume (yup, I know, the pun) that your GPS drives the Plotter
on it's data input connector, And the Plotter data output connector goes
to your 41XX, and these would be the BNC type connections.

May I first suggest disconnecting the Plotter from the 41XX and watch for
lockup to occur on the plotter. If this happens, I may have an idea of
what is wrong.

Please reply back to the thread if I am incorrect about your interconnection
routing as this will have a bearing on things.

Certain Raytheon gear just doesn't co-operate with other gear correctly,
and I have seen your problem before. Give me some more info on how you
have things wired together, and send an email to the Raymarine techies.
They are real good with help, but they don't know about some of the odd
things I have seen with their equipment. I have my own service notebook.

In article ,
says...

well the plotter displays the data on the radar screen
if I dosconned the plotter from the radar, How will I know if it
locked up?

THanks
Mark

The plotter has its own screen, that was what I thought you were having
trouble with, the plotter locking up. Is it actually the plotter overlay
on the radar screen that is locking up? I think I have mis-understood your
explaination of the problem.





On Mon, 27 Jun 2005 03:20:22 -0000, (Gudmundur)
wrote:

In article ,
says...

WEll ... let me give you more details

The GPS is a Raytheon 398 and works great.
The chart plotter is a Raytheon 601 ( I have 2 of these units)

The Radar is a Raytheon R41 XX


Let me assume (yup, I know, the pun) that your GPS drives the Plotter
on it's data input connector, And the Plotter data output connector goes
to your 41XX, and these would be the BNC type connections.

May I first suggest disconnecting the Plotter from the 41XX and watch for
lockup to occur on the plotter. If this happens, I may have an idea of
what is wrong.

Please reply back to the thread if I am incorrect about your interconnection
routing as this will have a bearing on things.

Certain Raytheon gear just doesn't co-operate with other gear correctly,
and I have seen your problem before. Give me some more info on how you
have things wired together, and send an email to the Raymarine techies.
They are real good with help, but they don't know about some of the odd
things I have seen with their equipment. I have my own service notebook.

Yes its the plotter overlay on the radar screen that's locking up



On Mon, 27 Jun 2005 23:03:39 -0000, (Gudmundur)
wrote:

In article ,
says...

well the plotter displays the data on the radar screen
if I dosconned the plotter from the radar, How will I know if it
locked up?

THanks
Mark

The plotter has its own screen, that was what I thought you were having
trouble with, the plotter locking up. Is it actually the plotter overlay
on the radar screen that is locking up? I think I have mis-understood your
explaination of the problem.





On Mon, 27 Jun 2005 03:20:22 -0000, (Gudmundur)
wrote:

In article ,
says...

WEll ... let me give you more details

The GPS is a Raytheon 398 and works great.
The chart plotter is a Raytheon 601 ( I have 2 of these units)

The Radar is a Raytheon R41 XX


Let me assume (yup, I know, the pun) that your GPS drives the Plotter
on it's data input connector, And the Plotter data output connector goes
to your 41XX, and these would be the BNC type connections.

May I first suggest disconnecting the Plotter from the 41XX and watch for
lockup to occur on the plotter. If this happens, I may have an idea of
what is wrong.

Please reply back to the thread if I am incorrect about your interconnection
routing as this will have a bearing on things.

Certain Raytheon gear just doesn't co-operate with other gear correctly,
and I have seen your problem before. Give me some more info on how you
have things wired together, and send an email to the Raymarine techies.
They are real good with help, but they don't know about some of the odd
things I have seen with their equipment. I have my own service notebook.

"Big gus" wrote in message
...
Yes its the plotter overlay on the radar screen that's locking up



On Mon, 27 Jun 2005 23:03:39 -0000, (Gudmundur)
wrote:

In article ,

says...

well the plotter displays the data on the radar screen
if I dosconned the plotter from the radar, How will I know if it
locked up?

THanks
Mark

The plotter has its own screen, that was what I thought you were having
trouble with, the plotter locking up. Is it actually the plotter overlay
on the radar screen that is locking up? I think I have mis-understood your
explaination of the problem.





On Mon, 27 Jun 2005 03:20:22 -0000, (Gudmundur)
wrote:

In article ,

says...

WEll ... let me give you more details

The GPS is a Raytheon 398 and works great.
The chart plotter is a Raytheon 601 ( I have 2 of these units)

The Radar is a Raytheon R41 XX


Let me assume (yup, I know, the pun) that your GPS drives the Plotter
on it's data input connector, And the Plotter data output connector goes
to your 41XX, and these would be the BNC type connections.

May I first suggest disconnecting the Plotter from the 41XX and watch
for
lockup to occur on the plotter. If this happens, I may have an idea of
what is wrong.

Please reply back to the thread if I am incorrect about your
interconnection
routing as this will have a bearing on things.

Certain Raytheon gear just doesn't co-operate with other gear
correctly,
and I have seen your problem before. Give me some more info on how you
have things wired together, and send an email to the Raymarine techies.
They are real good with help, but they don't know about some of the odd
things I have seen with their equipment. I have my own service notebook.




As I had recommended several times already, check the connection of the
plotter unit to the display unit. The wire connections to the (multi)pins
in the plug can easily come undone.

If the display shows the radar OK and the GPS is working OK then the first
route of failure should be the interface connections from the potter and GPS
to the display unit.

As a last resort I would sent the hardware to Raytheon to troubleshoot.

In article ,
says...

Yes its the plotter overlay on the radar screen that's locking up


Let me offer two trains of thought here.

1 Consult the owners manual to make sure the data communication is
programmed specifically for the 41XX unit. Your plotter can be set for
the 41X, the 41XX, and the 21X or 21XX. You must insure the 41XX setting
as your plotters output data string!

2 Your 601XX plotter was designed and built to use the older Raystar
105, 108, or 112 GPS mushrooms. They had simple NMEA 0183 V2.1 output
strings. I believe you have a differant GPS sensor, and there is a small
possibility of having input data string overflow to the 601XX which will
result in it simply 'going to sleep' after it thinks it sees bad checksums
in the input data strings. This overflow would manifest over a time period
such as you are experiencing.

Now as a last consideration, check your cabling, perhaps clean the
connector pins with a Q-tip soaked in 91% isopropyl alcohol. Insure that
all shields are in place, making sure the little 'snap together' ferrite
core is on your plotter to radar interface cable. Above all else, make
sure the negative ground connections for the radar and plotter go to the
same ground point on your power buss. Electrical noise from inverters, d.c.
motors such as bilge pumps, and even ignition noise from your engine(s) can
drive these unit totally nuts. Perhaps you may want to turn off everything
except your GPS/plotter/radar unit, and see if it behaves.

If all of this fails, the techies at Raymarine are good for answers to
common problems, but not strange problems. I think there are some FAQ links
for common problems on the Raymarine website.

I will check the newsgroup for your future postings. Please let us know
what you find as we may all learn something. Sorry that my reply-to address
is phoney. I absolutely must do that as my real email address cannot endure
spamming.

In article ,
says...

Yes its the plotter overlay on the radar screen that's locking up

OH MAN, I forgot the simplest explaination. The GPS doesn't know
where it is!!! It will send a data string of where it was last powered
off at. If that is not where it is currently located (like you moved
the boat several miles with the GPS powered off) it will send a 'NO
VALID POSITION FIX' data string until it figures out where it really is.
this can take up to 30 minutes!!! Always repower the GPS in the location
where it was powered off. Don't go out to sea 5 miles and then switch it
on. It will flounder typically 10 minutes to re-establish position.