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Resolved Resolved by MovieMaker!

Ez-B V3 Pooched?

After realizing that wall-e was being neglected I decided to pull him out. I realized that I had an alternative battery so I unscrewed the battery pack from the adapter and screwed in the new pack. I plugged it in and...

It didn't turn on...

I played with the wiring.

Nothing...

I switched back to the original pack.

Still nothing.

I thought it might be an adapter problem. So I took my dads multi meter and discovered... I don't know how to use a multi meter.
I turned the multimeter off and then inserted the probes into the jack on the adapter and found arcing. It was making sparks as current travelled through the multimeter.

This tells me that the adapter is getting current. So now I'm wondering that maybe my ez-b is pooched? Its not getting hot and nothing is abnormal on the board, so im left wondering.

  1. How to perform a test to see the problem?

  2. How to use a multimeter.

EDIT: I did the first part of the ez-b diagnostic check and it checked out. Now i'm at the part where it should plug in and flash the lights and it doesn't.

Part 2 shows that theres .01-.03v going through the ez-b. It sits at 0 when not touching.


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#33  

What do you think now? What should I test next? (sorry but I really want to draw a conclusion on this.)

United Kingdom
#35  

Remove and refit the main chip, see if that does anything.

Try and follow the power traces around the underside of the board and test for voltage, see where it stops. Did you check for voltage either side of the fuse on the underside of the board? And for voltage at the underside of the board where the barrel jack is?

I've not seen the diagnostics video to be honest so I don't know what DJ advises to test but if it's not part of it I would do it in this order.

Check for voltage at the barrel jack solder joints Check for voltage at both sides of the fuse Check the voltages at the regulators

Chances are that the problem lies in one of the above, either the component or the soldered joint.

P.S. I've never killed a chip with static and I am not exactly static concious. It's unlucky if static has killed the chip, and it does happen but that would be low down on my list of possibilities. Check the above, if that doesn't give any indications as to the problem then hopefully someone else has some ideas. Failing that, I would say you may need to use the Contact Us and see what EZ-Robots can suggest.

#36  

I could be wrong, but in your video it looked like the plug in the middle of the wire coming out of the battery had the red and black reversed on either side of the plug.

#37  

@Danger! Agreed, looks like the polarity might be reversed... 9 times out of 10 (with electronics), the centre pin of the barrel jack from the battery will be + (positive)... To the OP, check your polarity....

#38  

I just rewired it for the video(where it went wrong) but it still didn't work before.(when they were right.) Double checked and still same result.

Looks as though the chips screwed up.

PRO
Belgium
#39  

hi .you have to check atleast tree things.1 if you got power 2 check you got negatif.3see that you didn screw, on the rubber off the wire and not on the wire itself.her in the video you can see how to do.

PRO
Belgium
#40  

here a video how to test volt and excample a batterie.