Display showing 10:00 and stay lit

[CompuChron]

Hi,
i found a P3 , put 2 new batteries and it lit and show 10:00 but stay lit.
I tried in another case , same thing.
It satys on and doesn't advance.
Any idea?

[rewolf]

Quartz crystal

[CompuChron]

Is it a guess or an answer?
thanks anyway

[clockace]

i think i would replace the qc also. if it stays at 10:00 it doesn't look like it is running. why it stays lit may be another problem. peter

[rewolf]

Is it a guess or an answer?
thanks anyway

Both. It's the answer to "Any Idea?", and thus a guess - but a rather educated guess.
When a LED watch shows signs of life, but the time doesn't count, mostly the oscillator isn't oscillating.
But thinking again: if the oscialltor wasn't running at all, the display wouldn't multiplex either, so you'd see a single bright digit instead of "10:00". So maybe it's NOT the crystal but a faulty chip. However, the crystal is a) cheap and b) rather easy to replace.

Does the P3 advance when held in setting mode? Maybe the problem lies there? (Pure guessing, I've never had a P3 module in my hands).