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Nikon D80 flash bulb - replacing
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CJB
May 19, 2013, 5:01:01 AM5/19/13
to
The bulb on the pop-up flash unit has blown. I've got a replacement
from eBay (aka China). However is there service manual or website
online that can tell me how to fit this - especially without getting
a
shock from any charged capacitors? Many thanks. Chris B.
from eBay (aka China). However is there service manual or website
online that can tell me how to fit this - especially without getting
a
shock from any charged capacitors? Many thanks. Chris B.
Alan Browne
May 19, 2013, 11:42:51 AM5/19/13
to
multi-posted.
Repeating my other reply:
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Most recent (20 years) camera strobe circuits include a high resistance
resistor in parallel with the cap to discharge it continuously once
power is removed. That said - do take precautions.
If possible connect a 10,000 ohm 10W resistor across the strobe
connection and leave it there for a couple hours. That should deplete
it. (Batteries out, of course). More aggressive discharge with a pure
short will create quite a snap - wear glasses).
(note that the cap and the strobe are in parallel, so putting the
resistor across there or in lieu of the strobe is the same as across the
cap).
(You can measure the voltage with a simple volt meter as well - set it
to 1000V or so - try to use one hand only).
See 2.6 of
http://www.repairfaq.org/REPAIR/F_strbfaq.html#STRBFAQ_007
--
"A Canadian is someone who knows how to have sex in a canoe."
-Pierre Berton
CJB
May 19, 2013, 12:04:52 PM5/19/13
to
On May 19, 4:42 pm, Alan Browne <alan.bro...@FreelunchVideotron.ca>
wrote:
interface makes posting a message extremely awkward. I have just been
forceably converted to the new style interface as is Google's want -
and finding relevant Groups is somewhat difficult as opposed to the
old-style. CJB.
wrote:
> On 2013.05.19 05:01 , CJB wrote:
>
> > The bulb on the pop-up flash unit has blown. I've got a replacement
> > from eBay (aka China). However is there service manual or website
> > online that can tell me how to fit this - especially without getting
> > a
> > shock from any charged capacitors? Many thanks. Chris B.
>
> This is a case where you should have x-posted or single-posted but not
> multi-posted.
>
> Repeating my other reply:
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
>
> Most recent (20 years) camera strobe circuits include a high resistance
> resistor in parallel with the cap to discharge it continuously once
> power is removed. That said - do take precautions.
>
> If possible connect a 10,000 ohm 10W resistor across the strobe
> connection and leave it there for a couple hours. That should deplete
> it. (Batteries out, of course). More aggressive discharge with a pure
> short will create quite a snap - wear glasses).
>
> (note that the cap and the strobe are in parallel, so putting the
> resistor across there or in lieu of the strobe is the same as across the
> cap).
>
> (You can measure the voltage with a simple volt meter as well - set it
> to 1000V or so - try to use one hand only).
>
> See 2.6 ofhttp://www.repairfaq.org/REPAIR/F_strbfaq.html#STRBFAQ_007
>
> > The bulb on the pop-up flash unit has blown. I've got a replacement
> > from eBay (aka China). However is there service manual or website
> > online that can tell me how to fit this - especially without getting
> > a
> > shock from any charged capacitors? Many thanks. Chris B.
>
> This is a case where you should have x-posted or single-posted but not
> multi-posted.
>
> Repeating my other reply:
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
>
> Most recent (20 years) camera strobe circuits include a high resistance
> resistor in parallel with the cap to discharge it continuously once
> power is removed. That said - do take precautions.
>
> If possible connect a 10,000 ohm 10W resistor across the strobe
> connection and leave it there for a couple hours. That should deplete
> it. (Batteries out, of course). More aggressive discharge with a pure
> short will create quite a snap - wear glasses).
>
> (note that the cap and the strobe are in parallel, so putting the
> resistor across there or in lieu of the strobe is the same as across the
> cap).
>
> (You can measure the voltage with a simple volt meter as well - set it
> to 1000V or so - try to use one hand only).
>
>
> --
> "A Canadian is someone who knows how to have sex in a canoe."
> -Pierre Berton
Thank you. Sadly the vicissitudes of the new Google Groups web-based
> --
> "A Canadian is someone who knows how to have sex in a canoe."
> -Pierre Berton
interface makes posting a message extremely awkward. I have just been
forceably converted to the new style interface as is Google's want -
and finding relevant Groups is somewhat difficult as opposed to the
old-style. CJB.
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