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02-02-2020, 08:08 AM   #1
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AF540fgzii Ratches continuously

My Af540fgzii ratches for 30/40 seconds, sometimes longer, when first turn it on. Or changing focal length with zoom lens. Is it toast?. Out of warranty by a few months. Very unhappy. Any suggestions.

02-02-2020, 09:31 AM   #2
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Ratches isn't a term I am familiar with...
02-02-2020, 10:05 AM   #3
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QuoteOriginally posted by Roadboat24 Quote
My Af540fgzii ratches for 30/40 seconds, sometimes longer, when first turn it on. Or changing focal length with zoom lens. Is it toast?. Out of warranty by a few months. Very unhappy. Any suggestions.
Do you mean that the internal zoom drive runs continuously?
If that is the case then the system that senses that it has reached the end is not registering and it keeps on driving the worm screw that moves the lens system back and forth.

This can be remedied with some careful disassembly and cleaning of the PCB board and metal contacts. I may have a picture or two of this.
02-02-2020, 12:56 PM   #4
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Yes. Zoom runs continuous.

02-04-2020, 01:27 PM - 1 Like   #5
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QuoteOriginally posted by Roadboat24 Quote
Yes. Zoom runs continuous.
Iíve written a small blog post on the fix the issue if itís a matter of the flash not registering being at the end of its travel. Sorry if itís a little light on details I just did the repair without intending to necessarily share it.

Pentax AF360 Flash fix | Wallace Koopmans Artlog
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02-13-2020, 06:24 AM   #6
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Thank you Painter, I appreciate the info. That gives me a good start.
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