Question about Raymarine St40 Depth Display E22038

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ST40 Depth and Knot meter

The display is blank, yet I'm almost positive there is power. I have disconnected another power line that I know works, to the ST40, and still nothing

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  • paulschocker Feb 25, 2009

    Same problem, checked for power and also the line to the base of the mast "did not get to the top yet" I get a blank screen. Is there a way to reset? Thanks Paul Schocker

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90% the problem is a little elektronik part if you know some body who is good in elektronik he will find it fast,
the part cost afew cent

Posted on Nov 03, 2009

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I traced the line from the mast and it was good so finally ordered a new instrument head "$150", It works now, the head was 2 years old {the length of the warranty} not a very long lasting instrument, hope I get more time out of the new one.

Posted on Mar 14, 2009

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Need a repair shop for GPS,Fisher


Hi Clarence
Although the problem COULD be a faulty depth transducer, in my experience this is usually caused by a cabling problem, either there is a poor connection at the display unit, a poor power cable connection, RF interference from another device or the cable has been pinched causing an intermittent fault. After making SURE the power cable is tight, I'd clean the connections, then inspect the cable looking for an area that has been stressed. If you have a VHF radio nearby, try shutting that down during your testing. If depth reads normally, you know where your issue lies.

Good Luck!
-Steve

Oct 27, 2014 | Lowrance PARTS - LOWRANCE 15FT EXTENSION...

Tip

Watch glossary: D


DEPTH ALARM
An alarm on a divers' watch that sounds when the wearer exceeds a pre-set depth.
DEPTH METER or DEPTH SENSOR
A device on a divers' watch that determines the wearer's depth by measuring water pressure. It shows the depth either by analog hands and a scale on the watch face or through a digital display.
DECK WATCH
A large-sized ship's chronometer.
DEVIATION
A progressive natural change of a watch's rate with respect to objective time. In case of a watch's faster rate, the deviation is defined positive, in the opposite case negative.
DIAL
Face of a watch, on which time and further functions are displayed by markers, hands, discs or through windows. Normally it is made of a brass - sometimes silver or gold.
DIGITAL WATCH
Said of watches whose indications are displayed mostly inside an aperture or window on the dial.
DIVERS' WATCH
A watch that is water resistant to 200M. Has a unidirectional rotating bezel and a screw-on crown and back. Has a metal or rubber strap (not leather). May have a sapphire crystal and possibly, a wet-suit extension.

on Jan 11, 2010 | Watches

1 Answer

How can I stop spontaneous anchor alarm


The anchor alarm tolerance may be set too tight. Ray marine has an extensive library on-line. I have usually been able to find what I need there. May take some digging though.

Aug 10, 2014 | Raymarine St40 Bidata System Depth/Speed...

1 Answer

Why does my st40 bidata read a maximum 1.3 knots in any conditions. I have checked the paddle wheel, it is running free and all 4 paddles are in place?


Even the smallest amount of friction can keep the paddle wheel from turning properly. See if it will turn if you blow on it. If not, there might be something impeeding it from turning easily.

Apr 29, 2014 | Raymarine St40 Bidata System Depth/Speed...

1 Answer

Raymarine ST40 Bidata Manual


Hi

I realize this question has gone unanswered for quite awhile, but here is the link to ST40 owners manuals.

-Steve



https://flir.app.box.com/s/w7dp1h5hwi1f3fmda4x1/1/402191597

Jun 18, 2012 | Raymarine St40 Bidata System Depth/Speed...

1 Answer

Is it posible to conect garmin 420s gpsmap to st40 deth transducer


No. St series from Raymarine are made for digital depth only, not fish finding and do not talk nmea. The only way to get that Garmin of yours to see depth would be to go from an ST40 nmea out to that garmin nmea in. Or purchase a nmea 0183 smart sensor and hook it to the garmin.

Apr 08, 2012 | Garmin GPSMAP 420s GPS Receiver

1 Answer

Hello, our Raymarine ST40 depth sounder on our trailer sailer has stopped working only shows 0.00 depth on the display screen. However the metres symbol now flashes on/off. I have checked the cable...


now there is a chance that the transducer is bad ,, but I would check the battery voltage and make sure you have a soild 12 volts to the unit. also in my many years of working with and installing these units on boats I have see the needle pins ( where the plug inserts in the back of the display unit ) bend and/or break off completely. look in the plug area of the display unit and make sure all pins are intact. one more place to look for the problem is in the plug itself, take the plug apart and inspect the wire connection and make sure they are all good. if after all the above has been checked then I would assume that it is the transducer itself.
if you have anymore questions with this problem, please feel free to write back and ask,

c...

Jan 30, 2011 | Raymarine St40 Depth Display E22038

1 Answer

Raymarine St40 trouble


50/200 combination will work fine but 170/200 may be a little close in frequency and give you some trouble. "May be OK" doesn't leave me with a lot of confidence.

Jul 24, 2008 | Raymarine St40 Depth Display E22038

1 Answer

Raymarine Compatability


Yes. The shorty transducers that normally ship with the ST40 series instruments should be interchangeable with longer stem ST60 series ducers.

Jun 09, 2008 | GPS

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