Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-06-2010, 03:13 AM   #1
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Has my AF540GZ Flash Lost It's Mind?

I can trigger the flash both on and off camera, but it is refusing to sync with the shutter when its open, i'm guessing it fire half a second after the shutter and nothing I can do will make it work right.

07-06-2010, 03:57 AM   #2
Veteran Member
Jodokast96's Avatar

Join Date: Oct 2007
Location: Erial, NJ USA
Photos: Gallery | Albums
Posts: 2,133
Is it a problem both on and off the camera? If only off, you may have inadvertently changed the slave mode.
07-06-2010, 04:35 AM   #3
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
On and off. But its worse.

The flash now ONLY fires in full power mode, no matter what the settings are on or off the camera. Even at 1/64 the flash will only discharge at full power.
07-06-2010, 04:36 AM   #4
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I should note I can smell a funny burnt electronics smell from inside...great :S

07-06-2010, 07:52 AM   #5
Veteran Member




Join Date: Nov 2009
Location: Pittsburgh, PA
Posts: 479
Sounds toast to me. Out of curiosity how long have you had it?
07-06-2010, 09:55 AM   #6
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
QuoteOriginally posted by noahpurdy Quote
Sounds toast to me. Out of curiosity how long have you had it?
Since September last year.

I can't even remember the US retailer I bought it off! GRRR!

It working fine, until the fully charged batteries seemed to mysteriously go dead. I then recharged, put them in, took an off camera shot and noticed a strange burning smell.

As I said the flash fires beautifully at full on and off camera, just it doesn't sync and the power cannot be controlled. Judging by the smell I hope it's something simple like a transistor.
07-06-2010, 12:26 PM   #7
Site Supporter
GeneV's Avatar

Join Date: Oct 2008
Location: Albuquerque NM
Photos: Albums
Posts: 9,761
It sounds a little flaky, but I'm not sure the smell is the key. After a flurry of full power flashes, I've smelled a heated electrical component smell from a number of flashes I've owned.
07-06-2010, 01:36 PM   #8
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by C.W Tsorotes Quote
Since September last year.

I can't even remember the US retailer I bought it off! GRRR!

It working fine, until the fully charged batteries seemed to mysteriously go dead. I then recharged, put them in, took an off camera shot and noticed a strange burning smell.

As I said the flash fires beautifully at full on and off camera, just it doesn't sync and the power cannot be controlled. Judging by the smell I hope it's something simple like a transistor.
if the smell is new to the flash you may have really had something fail internaly. You should send it for service, as it may be repairable, since the flash itself seems to be functioning, but don;t play with it too much because you could damage it further.

remember, electronics does not work on the movement of holes and electrons in peices of silicon, but on smoke. Many people have demonstrated that things stop working when the smoke leaks out

07-06-2010, 05:32 PM   #9
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
Great...I may just claim it on my travel insurance.
07-06-2010, 06:43 PM   #10
Site Supporter
Ex Finn.'s Avatar

Join Date: Nov 2007
Location: Southern Maryland.
Photos: Gallery | Albums
Posts: 6,061
QuoteOriginally posted by Lowell Goudge Quote
if the smell is new to the flash you may have really had something fail internaly. You should send it for service, as it may be repairable, since the flash itself seems to be functioning, but don;t play with it too much because you could damage it further.

remember, electronics does not work on the movement of holes and electrons in peices of silicon, but on smoke. Many people have demonstrated that things stop working when the smoke leaks out
Fine, I can`t help it. "The smoke is the great equalizer and the keeper of all electronic things.
You let it leak out and the sky will fall".
07-06-2010, 07:48 PM   #11
Loyal Site Supporter
RichardS's Avatar

Join Date: Nov 2008
Location: Nelson Bay, NSW, Australia
Posts: 2,055
QuoteOriginally posted by Lowell Goudge Quote
remember, electronics does not work on the movement of holes and electrons in peices of silicon, but on smoke. Many people have demonstrated that things stop working when the smoke leaks out
That's the phlogiston being released. Things don't work when the phlogiston is gone.
07-06-2010, 11:41 PM   #12
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
Lol.......can dodgy rechargeable batteries kill / damage a flash?
07-07-2010, 04:49 AM   #13
Pentaxian
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 15,314
QuoteOriginally posted by C.W Tsorotes Quote
Lol.......can dodgy rechargeable batteries kill / damage a flash?
I have heard of some batteries having too low a resistance causing an excessive flash charging current, but that is a long time ago when rechargeables and high power alkalines came out.

Don;t think it is a problem today, and I use any and all kinds of batteries in my AF540FGZ Nicad's Nickel etc, and no issues
07-07-2010, 06:35 AM   #14
Veteran Member
steve1307's Avatar

Join Date: Mar 2010
Location: Sydney
Photos: Gallery | Albums
Posts: 1,128
QuoteOriginally posted by Lowell Goudge Quote
I have heard of some batteries having too low a resistance causing an excessive flash charging current, but that is a long time ago when rechargeables and high power alkalines came out.

Don;t think it is a problem today, and I use any and all kinds of batteries in my AF540FGZ Nicad's Nickel etc, and no issues

should note that in the manual it says to use:

Alkaline, Lithium or rechargable Ni-MH batteries

don't use Ni-Cad or Ni-Mn (Nickel Manganese - never seen one of those)
07-07-2010, 08:25 AM   #15
Veteran Member
Christopher M.W.T's Avatar

Join Date: Jun 2009
Location: Geelong, Victoria, Australia
Posts: 1,689
Original Poster
I never bothered to look! DOH

I have been using the same rechargeable NIMH since I got the flash.

If you can't use those, then what can you use??
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, dslr, flash, photography, shutter
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do I have LBA or have I simply lost my mind? Lowell Goudge Pentax SLR Lens Discussion 41 01-07-2010 11:44 PM
Just Got My AF540GZ Today Christopher M.W.T Flashes, Lighting, and Studio 2 08-28-2009 11:52 AM
Considering a body downgrade--have I lost my mind? heatherslightbox Pentax DSLR Discussion 15 06-02-2009 07:12 AM
For Sale - Sold: Pentax AF540GZ Flash frostugh Sold Items 5 11-10-2008 07:16 PM
Sigma 500 super flash..... I am so lost! slip Flashes, Lighting, and Studio 1 12-31-2006 02:51 PM



All times are GMT -7. The time now is 05:42 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top