# Wall Clock internal problem

#### Abhinavrajan

Joined Aug 7, 2016
83
I have a wall clock in my home. Which just requires a 5V AA battery to run.
Unfortunately, It doesn't work even when I insert the battery with proper polarity.

What might be the problem with my clock ?

#### SLK001

Joined Nov 29, 2011
1,548
What might be the problem with my clock ?
It's broken?
Your battery isn't as good as you think?
Your clock battery terminals are corroded?
It's an atomic clock and you aren't receiving a signal in India?

#### Abhinavrajan

Joined Aug 7, 2016
83
It's broken?
Your battery isn't as good as you think?
Your clock battery terminals are corroded?
It's an atomic clock and you aren't receiving a signal in India?
The battery is fine. Its new.
The clock is also good.
The terminals are also clean and neat.

I didnt understand the last question. Could u explain the concept behind the last question?
Thanks.

#### absf

Joined Dec 29, 2010
1,968
Is your clock digital or analog?

#### Abhinavrajan

Joined Aug 7, 2016
83

#### absf

Joined Dec 29, 2010
1,968
Then I think you need to replace the movements...

Allen

#### AlbertHall

Joined Jun 4, 2014
11,952
The battery is fine. Its new.
The clock is also good.
The terminals are also clean and neat.
If these three are all true then the clock works when the battery is correctly inserted.
If the clock doesn't work then at least one of these is not true.

#### crutschow

Joined Mar 14, 2008
29,479
An AA battery is 1.5V, not 5V.
If you applied 5V it would likely zap the clock circuits.

#### Abhinavrajan

Joined Aug 7, 2016
83
An AA battery is 1.5V, not 5V.
If you applied 5V it would likely zap the clock circuits.
Yeah my bad! Its 1.5V

#### crutschow

Joined Mar 14, 2008
29,479
...........
It's an atomic clock and you aren't receiving a signal in India?
If you are not being facetious, that wont keep the clock from running, it just won't keep the exact time.
The "atomic" clock typically receives the time signal once a day in the early morning hours to correct any errors in the crystal oscillator from the previous 24 hours.

#### AlbertHall

Joined Jun 4, 2014
11,952
If you are not being facetious, that wont keep the clock from running, it just won't keep the exact time.
The "atomic" clock typically receives the time signal once a day in the early morning hours to correct any errors in the crystal oscillator from the previous 24 hours.
Not necessarily. I have one which resets the hands to 12 o'clock and waits for the radio signal - no signal, no movement.

#### SLK001

Joined Nov 29, 2011
1,548
Not necessarily. I have one which resets the hands to 12 o'clock and waits for the radio signal - no signal, no movement.
Mine are all like this. I keep thinking, "Why the heck isn't this clock working..." then the next day all is okay.