Why can’t the frequency of laser marking machine be adjusted up?

in FAQs about Laser Marking, ,

There are these possible causes:

1 The settings in the marking software are wrong.

2 The frequency signal of the marking card is not output, the chip is faulty.

3 Wrong mode selection for Q-switch driver.

4 Q switch driver selection does not distinguish between internal control and external control.

5 The output RF signal of the Q switch driver is not strong.

6 Q switch has a weak light-locking ability.

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