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Old 14-04-2009, 01:53   #1
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flashing display in deep measurement

Y have an Uniden QT 206 digital deep sounder, with a Airmar P79 Inside-the-hull transducer.

Recently the display has started randomly to flashing keeping the last measurement, this is an intermittent fault, sometimes one hour, or so.

I check connectors but no luck.

My last opportunity seems to be that the oil between the transducer and the hull is insufficient and maybe there is some air in the surface of the transducer, but I can’t remove the transducer (maybe it is glued to the base….) so I plan to drill a hole near the border, because the sensor is 1.75” and the base is 3.86” so it looks that I have room between the sensor itself and the border, and I like to use this hole to push new oil with a syringe and close the hole after that, for example with rubber compound.

Any suggestions ?????
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Old 14-04-2009, 02:23   #2
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Location: Thunder Bay, Ontario - 48-29N x 89-20W
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Try contacting:

Uniden America Corporation
Parts and Service Division
4700 Amon Carter Blvd.
Ft. Worth, TX 76155
(800) 586-0409

And/or, check out the:

QT206 Operators’ Manual:

Airmar P79 Installation Manual:

P79 Wiring Diagram (Uniden QT-206):
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

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