mattbrailsford
United Kingdom
Asked
— Edited
Man,
I just though I'd have a play with my ez-b having not played with it for a while, but when I connected the battery, nothing happened. Removed the power and re attached it a few times when it decided to just go pop
Anyone any idea what happened? And whether its repairable? Really can't afford another one at the moment
Matt
Would this happen if power was applied backwards? I used a jack cut off of and old omni battery connected to a new one, but I'm wondering whether the colours were backwards?
Do you think replacing the blown component should make it work again? Anyone know what the details of the component was?
So gutted
Matt LOL!
Basically same thing happened to me last year with my EZ-B, I replaced the regulator and it works fine, however I didn't have a cap pop. That cap is 220uf 6.3v cap if that helps. The regulator i'm trying to find the info on now...
That regulator is a 5v 5amp regulator, look for LM1084IT-5.0
That would happen if you applied power backward
It has happened to me once or twice embarassed ... You don't really need that cap. It's redundant because there area 2 of each. Simply cut away the material and ensure the pins are cut down too. The board will still work
@dj you my friend are awesome!
You are absolutely right, it still works. Woohoo!
That'll teach me to trust the colour of wires without checking. It was indeed down to the adaptor I cut off the old omni battery having the colours backwards (see in the photo, red has to go to black and black goes to red)
Thank you, thank you, thank you for designing the board for fools like me
Let the fun begin again
Matt
Excellent
Use a pair of side cutters, little ones... and cut away the material from the old capicator. Also cut away the electrical leads so they don't short. You're EZ-B will look better without that capicator
It's funny, when I blew up an EZ-B before - it was from the Omnibot connector also! I was super surprised to find that negative is Inside and positive is Outside. Totally backward!
This is great! I love to know that EZ-B is over built! Just like the old days when things were built to last!
Lol that's great. I have made the mistake of reversing power once when I used a spare dc jack where center pin pos was reversed! Woops. Letting it sit for about 5 min and putting juice to it the correct direction fixed that problem but wow did that heatsink get hot for a few seconds
we have all done it Matt - Josh Starnes