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Anyone with SD14 and multimeter would you help?

C

conurus

Member
If we measure the voltage between pin 1 (7 o'clock if you are looking at the front of the camera) and the mount, pin 1 shows +5V all the time as long as the SD14 is turned on.

(The red lead of the multimeter going to pin 1 and the black lead going to the camera mount)

The only way to make the voltage on pin 1 disappear is to turn off the camera.

Whereas pin 3 is +5V for a few seconds as the camera is turned on or when the shutter release is half-pressed, but goes back to zero afterwards.

Just wish to see if every SD14 is like that... Thanks for your help in advance!
 
Hi Conurus,

my 14 shows different behaviour?!

Your 7 o'clock pin 1 ist dead, when the cam is turned on!

If I count clockwise (pin 1 at 5 o'clock) then pin 1 is dead, when the cam is turned on, pin 2 is at 5 Volts, when tipping the release botton and pin three has permanent 5 Volts current?!

See you with nice pictures

Klaus

P.S. Uwe (Netzuser) is our expert in the cam's electronics. He will surely answer as well!
 
If we maintain the counter-clockwise counting... Your camera has pin 7 dead (it should - I think that is a ground line), and pin 6 and pin 5 at +5V? (I got that too, these are data lines).

But pin 1 and pin 3 should turn on to +5V when you half press the shutter button, but after a few seconds the voltage disappears, right?

Thank you very much for your assistance!
 
Hi conursus,
my findings : pin1 0 Volt all the time
pin 3 +5 Volts after tipping the release botton halfway (focus) and goes off after a few seconds.
BUT: pin1 has +5 Volts with a lens attached and also goes off after a few seconds.

Maybe this helps:if not known already
don´t get confused with the double P-GND lines, it is for Canon,Sigma only has one line (total 8 with Canon,but only 7 with Sigma)
View attachment 890

This might be of interest as well:
Gives some light on converters
View attachment 891

Regards
Uwe
 

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netzuser said:
Hi conursus,
my findings : pin1 0 Volt all the time
pin 3 +5 Volts after tipping the release botton halfway (focus) and goes off after a few seconds.
BUT: pin1 has +5 Volts with a lens attached and also goes off after a few seconds.

Maybe this helps:if not known already
don´t get confused with the double P-GND lines, it is for Canon,Sigma only has one line (total 8 with Canon,but only 7 with Sigma)
View attachment 952

This might be of interest as well:
Gives some light on converters
View attachment 953

Regards
Uwe
Click to expand...

Great info Uwe , particularly the attached Zip file. Did you make that file? In that file there is mentioned some "repair manuals of the extenders" . What manual is that and where can it be obtained ?. In fact do you know where to order Canon manuals and PARTS?

Thanks. Luis
 
Hi Luis,
I collected the drawings in other forums,while I was looking for info about
Canon and Sigma mounts.
Unfortunely I did not save the source,but Ithink it was on dpreview.
I do not have any idea where to get manuals and/or repairguides over here
in Germany. There are two wellknown repairshops,but both are very restricted
in telling tech detail,be it manuals or partslist.
Regards
Uwe
 
netzuser said:
Hi Luis,
I collected the drawings in other forums,while I was looking for info about
Canon and Sigma mounts.
Unfortunely I did not save the source,but Ithink it was on dpreview.
I do not have any idea where to get manuals and/or repairguides over here
in Germany. There are two wellknown repairshops,but both are very restricted
in telling tech detail,be it manuals or partslist.
Regards
Uwe
Click to expand...

Thanks Uwe. We are busy trying to design a solution to convert the SD14-15 to EOS . We are not far from achieving a practical one , however of course it requires a Canon EF Pinset and we have not yet found a place to buy them .

If anybody can provide a lead it would be appreciated. Please make a note that we have this as a Topic in our Forum at ( Forgive me for the link )

http://sigmacumlaude.com/yetanotherforum/

Thanks again.Luis
 
Hi Luis,
why not take a pinset from an old analoge EOS camera?
I used one when I build a Canon frontend for my Auto-Bellows.
Regards
Uwe
 
Hi Luis,
You can order repair parts directly from Canon. I use the pinset from the 300D, it's a thin unit and works well in the SD14.
Jerry
 
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