Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

[PohTayToez]

I have a Lenovo tablet that stopped working all together. It will not turn on nor will it indicate that it is charging when plugged in. I have tried hard resetting, and leaving it with the battery unplugged for a long period of time. The USB charging port does not appear to be damaged.

There is one component inside that I was curious about. It appears to be a battery however I get a 0V reading off of it. I've attached pictures below. The first pic is the component as it appears with the back of the tablet removed, the second pick is from the other side of the board, and the last pic is the same as the first but with the rubber covering removed.

[trebo]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

looks to be a cmos battery, should have about 3V on it
never seen one like that before thou

[domas]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

looks like speaker to me, but what do i know

[PohTayToez]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

looks to be a cmos battery, should have about 3V on it
never seen one like that before thou

That's what I was thinking. I'm tempted to try and hook up a standard 3V button cell to it.

looks like speaker to me, but what do i know

I considered that it might be a speaker or mic at first, however there are no openings in the housing anywhere near it.

[trebo]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

wondering, if it may be a buzzer or beeper of some kind

[spidey]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

why dont you measure it to understand what it is. there are + and - signs on the pcb, so most probably it is a battery.

[PohTayToez]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

why dont you measure it to understand what it is. there are + and - signs on the pcb, so most probably it is a battery.

I said in the original post I measured it. Came up with 0 voltage, so it's either faulty and possibly the source of the problem or not a battery at all.

[trebo]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

I said in the original post I measured it. Came up with 0 voltage, so it's either faulty and possibly the source of the problem or not a battery at all.

I have never seen a lappy that did not have a cmos battery, so if you cant find a cmos battery on the motherboard, then that has to be a cmos battery
EDIT, dum me, its a tablet

[PohTayToez]

Re: Lenovo IdeaTab A1107 -- No Power (Need Help Identifying Internal Component)

Turns out it's some sort of vibrating motor. I've never seen one that is disc shaped like this but when I applied 3V it started vibrating.