Hi, I purchased in Feb. 20

Question

Hi,

I purchased in Feb. 2019 a new JD robot, just used a few times

Yesterday, I was doing the servos profile, the robot twisted up and said low battery (it was charged first) then a burning electrical smell, I shut it off

I recharged the battery, all seem ok now - do you know what that could have been?

Used it this morning ,robot is working fine now

update:

robot will not turn on - dead 3/6/2019

I replaced the fuse as you suggested to no avail, still dead, what do I do?

Jeremie · Answer

Hello @EZang60, Have you updated to the latest ARC version? I've personally never encountered this kind of issue when calibrating the servos. I guess it's possible to accidentally load a completely different servo profile but it doesn't sound like you did this. Can you remember if you clicked somewhere accidentally that may have caused the issue? *Edit: I didn't notice your update about the robot being dead. Sounds like you may have blown the fuse, check out the fuse replacement tutorial here: https://synthiam.com/Tutorials/Lesson/47?courseId=1

EzAng · Answer

I tried a new fuse to no avail, still dead

Nomad 6R · Answer

Quote:you can check your batterie.here's a picture .when the batt is bat the seal will be more open and the batt looks bloted.

EzAng · Answer

battery looks good and charged

Nomad 6R · Answer

howmany minutes does your batterie needs to  have a fully charged batt?i ask because for excample your batt charge for lets say 20 minutes,this can be an  indication that the batt is bad.

Jeremie · Answer

Hello @EZang60, Here are the next steps: 1) Unplug all wires from your EZ-B 2) Use your charger to see if the battery will still charge (it could be depleted)  3) If the battery can still charge until the charging LED on the charger turns green it's not a battery issue 4) With the power switch off, follow the micro deans pin adjustment tutorial 5) If you have another robot body, try the EZ-B in another body to see if the EZ-B is unaffected  6) If you don't have another body but do have a voltmeter, use the voltmeter to see if there is still voltage at the micro deans plug on the robot side when the power switch is turned on 7) If there is no power at the micro deans plug there is a fault with the wiring harness, if there is still voltage there is likely an issue with the EZ-B 8) If the EZ-B is not working please contact EZ-Robot customer service and they will figure out a solution with you

EzAng · Answer

Your instruction sound good, however I feel I should not have to go through all this,  I am just sending it back, that's easier, don't you think thanks for all your help

Jeremie · Answer

@EZang60 It would definitely be easier but we don't offer a repair service. We will have to work together to see what the issue truly is. As you've said, JD was working before but now is not. Let's try a few things to see if we can help you get JD up and running again.

Nomad 6R · Answer

hey EZang you mention you smelled a burning smell.is it posible for you to make a video?and post it here. i am very interested to know what the error might be.give your jd a second chance.

EzAng · Answer

I doubled check the battery to your pictures, maybe bad

EzAng · Answer

sorry for multi pics

EzAng · Answer

as soon as I plug the battery in it green

Nomad 6R · Answer

you have to let the batt cool down for 30 minutes before power on the robot.also when you have used the robot,let the batt cool of for 30 minutes, before charging.great to see you tackle the problem.howlong did the charging last before the batt was fully charged.? if you can use a multi meter ,you can messure howmany volt there is in the batt.

EzAng · Answer

I appreciate all that you have done, since it was new, I will just send it bask to the robot shop where I purchased it thanks again

Nomad 6R · Answer

beware you might not get a warenty from the shop where you bouth it.may i ask what is you favorit robot?

Jeremie · Answer

@EZang60 It looks like the Battery is good, since the charger has a green LED. That would indicate that the battery can be charged and it is has a full charge. I believe the EZ-B protection diode may have been damaged during the event that happened when JD was twisted up. It's likely that all you need is a new EZ-B.

EzAng · Answer

Hi Nomad 6R I purchased it at the robot shop - I had the EZ-robot humanoid, great robot I sent it back tonight UPS I will get another one as soon as I get credited  EZ robot people really help  :-)

Nomad 6R · Answer

great to hear you going for it.and members here are awesome.jd is my fav robot too.if you have your new jd ,dont forget to calibrate all servo's, before assemble him. hey jer the protection diode,do you mean the poly fuse?

Jeremie · Answer

@EZang60  I believe Robotshop may have replacement items that they can send you. Probably best to contact them before sending a robot back to them.

Jeremie · Answer

@Nomad There is a polarity protection diode on the EZ-B main board.

EzAng · Answer

I already sent back, thanks anyway

EzAng · Answer

This is exciting, where is the polarity protection diode on the EZ-B main board?

Nomad 6R · Answer

hey EZang60 i dont find any info whits one is the mainboard,or where the polarity protection diode is on the board.any news on a replacement part or robot?

Jeremie · Answer

Hey guys, In the picture is the WiFi (top) board, the polarity protection diode is on the bottom (main) board. The diode is not user serviceable. It's easy to spot, it's right near the voltage input.