Question about Motorola T5710 (22 Channels) 2-Way Radio
A friend was using one of my t5710 units and submerged it while crossing a river. I dried it out. It now powers right up, the display works just fine but it does not transmit or receive. When the transmit button is pushed, there is static coming over the speaker. Is there any hope for this unit?
Water is the enemy on electronic items. It is possible the radio is ruined. However, as a last ditch effort, check the programming of the frequency and the interference code eliminator (and the Qt filter if any). Make certain they are identical. Here is a link to the user's guide: http://www.giantintl.com/RadioPDFs/Outdated%20Manuals/T56XX_57XX_User_Manual_E.pdf
If the accident occurred within the past 24-48 hours, remove the battery pack and dry the unit with a blow dryer, leaving for an additional 24 hours to dry completely. Do not operate a wet or damp unit, as this can cause further damage.
If the water is very dirt or contaminated a last ditch effort within 2-6 hours is to run the unit through the dishwasher (no soap) and then start the drying process. Corrosion is more pervasive when there is dirty water involved.
Posted on Oct 07, 2009
The electronics in the transmit / recieve circuitry (RF = radio frequency) work very differntly from those in the display and control circuits, which prob ablyexplains why the display works, but not the rest.
The major problem with water in RF circuits is that even after it dries out, it leaves a residue, or worse still some corrosion, which adversly affects the tuning of the RF circuits.
It may be worth trying to dry it out a bit more - put it somewhere warm but not humid like near but not too close to a central heating boiler, for a few days. However, I suspect it is now beyond repair.
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
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