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simrad IS12 wind angle fault

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david selby View Drop Down
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    Posted: 01 July 2013 at 16:16


My wind instrument angle dial is going from 3oclock to 9oclock but does not show any graduations of wind inbetween, what's going on and what's the solution. the wind speed digi. display works fine.

Edited by david selby - 20 February 2014 at 23:01
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david selby View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote david selby Quote  Post ReplyReply Direct Link To This Post Posted: 20 February 2014 at 23:04
Have since found out it was a display unit fault
I will renew soon
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lnhuizen View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lnhuizen Quote  Post ReplyReply Direct Link To This Post Posted: 10 June 2014 at 08:27
Hi David,
 
I have a similar problem 0 180 degrees, can you tell me what the exact problem is.
I expected the fault in the TOP unit but that was not the case.
 
Can it be repaired or do I need to buy a new one.
 
Thanks
 
Cas
Blue Manta
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david selby View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote david selby Quote  Post ReplyReply Direct Link To This Post Posted: 12 August 2014 at 00:07
I bought an is20 unit plugged it in, alls well now.
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landlocked View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote landlocked Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2017 at 23:01
I just noticed this old post.  My reply is too late for the folks who had this problem before, but for future reference I can explain the cause and potential fix for this problem.   There are two coils that control the needle indicator for wind direction:  one for the port/stbd axis and one for the fore/aft axis.   If one of the coils has an open-circuit you will only have a magnetic field  for deflection on the other axis, so the needle will either point to port or stbd if the fore/aft coil is open and it will only point foreward or aft if the port/stbd coil is open.   In my case I lost the fore/aft coil so the needle would flip from either 90 degrees to port or 90 degrees to starboard.
I was able to re-flow the solder connection where the coil is mounted on the PCB in the unit and got the coil re-connected.   It is a delicate procedure and you need a fine soldering iron, fine solder, steady hand and either good eyesight or good guesswork (the latter seemed to work for me).
I've attached a photo showing the coil on the PCB.  You can test the coils with an ohm-meter.  I think the good coil showed a few hundred ohms while the bad one of course was infinite.   In the photo you can see that the fine coil wire runs to the same solder joint that holds the metal post for the coil and in my case it seems that connection had failed.  The coil is heat-staked onto the PCB so removing it is probably not a great idea but if you can reach in to the terminals with a soldering iron and re-flow the solder at the connection point to the PCB you may find it comes back to life - just keep checking with the ohm-meter across the top terminals to see if you've succeeded.

"Kerkyra" 400e #042
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Rubato View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2017 at 17:55
Holy thread resurrection Batman! ;)
Steve

Hanse 400e, #168
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landlocked View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote landlocked Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2017 at 18:55
Originally posted by Rubato Rubato wrote:

Holy thread resurrection Batman! ;)

Ya, I lost my computer for a few years but I found it again so I thought I'd check in ;-)   This is such a great site, and has been so helpful, I felt obligated to post my little tip from last summer in case it helps somebody, sometime.
"Kerkyra" 400e #042
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Johan Hackman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Johan Hackman Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2017 at 21:32
Originally posted by landlocked landlocked wrote:

Originally posted by Rubato Rubato wrote:

Holy thread resurrection Batman! ;)


Ya, I lost my computer for a few years but I found it again so I thought I'd check in ;-)   This is such a great site, and has been so helpful, I felt obligated to post my little tip from last summer in case it helps somebody, sometime.


You guys seem to be like bros to me. Please don't tell me your boats are the same size.

Owen, I appreciate your post. I am struggling with my B&G wind sensor at the moment as I frequently get the "---" message on my displays. The sensor is still under warranty so if I could only get myself to climb the mast during the current snow storm I would replace it.

Johan

Edited by Johan Hackman - 22 November 2017 at 21:33
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Rubato View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2017 at 17:21
Originally posted by Johan Hackman Johan Hackman wrote:

Originally posted by landlocked landlocked wrote:

Originally posted by Rubato Rubato wrote:

Holy thread resurrection Batman! ;)


Ya, I lost my computer for a few years but I found it again so I thought I'd check in ;-)   This is such a great site, and has been so helpful, I felt obligated to post my little tip from last summer in case it helps somebody, sometime.


You guys seem to be like bros to me. Please don't tell me your boats are the same size.

Owen, I appreciate your post. I am struggling with my B&G wind sensor at the moment as I frequently get the "---" message on my displays. The sensor is still under warranty so if I could only get myself to climb the mast during the current snow storm I would replace it.

Johan

Brothers from another mother! ;)

Having boats the same size isn't too weird, if they're the same colour though....


Steve

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landlocked View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote landlocked Quote  Post ReplyReply Direct Link To This Post Posted: 23 November 2017 at 17:40
Same size and same colour but for reasons we cant figure out his boat seems to go a little faster.

"Kerkyra" 400e #042
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