crystal oscillator help

jin29_neci said:

guys. Thanks a lot. I learned a lot in this forums.

However, we all know that a television set has a micro controller.
My question is is it safe to check the oscillator beside the microcontroller with a frequency counter?

What i meant is that when I check the crystal oscillator using a frequency counter will it not damage the micro controller?

Thanks!!! :wink:

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Nigel Goodwin said:

No, it won't damage it, but you may need to use a x10 probe, as the capacitive load may stop the oscillator.

But generally, it's not usual to use a frequency counter on a clock crystal, a scope (again with x10 probe) is more practical.

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Klaus said:

Nigel Goodwin said:

No, it won't damage it, but you may need to use a x10 probe, as the capacitive load may stop the oscillator.

But generally, it's not usual to use a frequency counter on a clock crystal, a scope (again with x10 probe) is more practical.

Click to expand...

However, if one was to tweak the frequency a clock crystal in a time piece then an oscilloscope is not as precise a a good frequency counter.

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