Depth Gauge help

Mule

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exMember
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Mar 3, 2002
RO Number
7719
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I have Standard Horizon DS150. It is no longer available and I have not been able to find much troubleshooting help.
The unit worked intermitetly for a while and then stopped working altogether.
The head unit appears fine and works in smulation mode. But I have no idea how to troubleshoot the cable or transducer.
Can I use a multimeter to find out if the cable is still in one piece?
Is there a way to check the transducer?
Any help would be appreciated.
 
Without any documentation, troubleshooting will be difficult.

That said, they symptoms seem to indicate a bad connection between the display and the transducer. It might be worth checking all connections between the two, looking for corrosion and/or breaks. Clean all connectors, even if they "look ok".
 
I would give Vertex Standard USA a call. They have pretty good tech support: (714) 827-7600
 
Best I can tell, there is only one connection, an RCA type plug under the dash.
I checked it... Didn't clean it but it looks new!

I will call Standard Horizon. Maybe they can help.
 
Standard Horizon ' website has a link to the DS150 Owners Manual that lists the T/D spec as 200 khz/ **600 ohms**, then in it's Troubleshooting section suggests checking the resistance at the T/D cable connector contacts (center and shield on the phono plug).
http://www.standardhorizon.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=86&ProdID=656&DivisionID=3 ( go to Files tab/ DS150 )

If you are really really lucky, just spraying both sides of that "clean" RCA connection with electrical cleaner & disconncting /reconnecting multiple times might help . Sometimes... T/D cables have cable extensions with hard to find connectors prone to corrosion.

Airmar shows cross-reference to several of their T/D's ( & wiring diagram) for the DS150.
http://www.airmartechnology.com/marine-product-search.asp?q=Standard+Horizon

FWIW, I believe the manual indicated the standard T/D for the 150 designation was a low-profile plastic 200khz T/D, (assuming thru-hull). Other T/Ds originally supplied showed DS151 152, etc.
 
Ditto on giving SH's great customer service a try if the above doesn't help.
 
Good info... Thanks.
FWIW, my transducer is probably an Airmar B45. I know the transducer cable had a tag on it that said "Airmar" and I know it's a brass thru-hull.
Does anybody know if there may be two RCA plugs?
I didn't see one on the transducer end... but I didn't look for one either!
I have to stand on my head to reach it... Literally!
 
If you look at the manual you will see only one RCA plug shown in their setup diagram. If you happen to have an extension cable, there would be another set. There would not normally be one at the T/D end unless someone monkeyed with it.
 
I spoke with Standard Horizon and am sending the head unit to them to be checked before going any further.
Thanks for the help!
 
Are you sure it is a through hull and not a shoot through hull? Could be that the shoot through needs oil topped off. Someone suggested this to me when I had problem.
Unfortunately, mine is in fact through hull and I am still troubleshooting.

Look about halfway down this link:
http://www.boatered.com/forum/topic.asp?TOPIC_ID=144804
 
I have cored hull...
I even called Cruisers today to confirm that fact!
Because you know what I was thinking!
I'll rule out the head unit before buying a new thru-hull transducer and fairing block (about $200 total).
 
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