Today one of my JDs in my class would not turn back on. I unscrewed JDs back to double check all connections in his body and everything is intact. JD never indicated that it was on low battery after all JD was charged overnight. I've adjusted the female pins as shown in the video even though I didn't think that was the issue. This JD worked early in the period and sporadically stopped working. In addition to that, the power button is flipped upside down (this is how it was when we opened the box but it did not affect its function). Has anyone experienced this problem before? Regardless what should I do?
Thank you for your response in advance.
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Here is the fuse and battery replacement tutorial...
JD Fuse and battery replacement
Also check the switch to make sure it is passing power when switched on
Another option, since you have multiple JD's, I would try moving the EZ-B from the non-working one to a working one (I know, it is a pain because of all the cables. Maybe if you put them very close together most of thee cables will reach) just to see if the problem follows the EZ-B or if it follows the JD body.
If it follows the EZ-B itself, it is probably a damaged EZ-B. If it follows the body, then again, recheck power at each connection point, and verify the battery is providing sufficient voltage. I don't know how long you have had your JD's, but LiPo batteries last about a year or two even under the best of conditions, and a classroom is usually a fairly abusive condition for batteries (device gets left turned on long past the battery warning, etc....).
Since its an issue with the EZB "brain" what can I do to troubleshoot and prevent this from happening?
Thank you in advance for your help.