Nikon SD-9 Manuel D'utilisation page 19

How to use the SD-9
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Hooking the SD-9 up to the SB-900
En
■
Ready-light
■
Casing the power cord
18
Plug the 3-pin plug of the SD-9's power
cord into the SB-900's external power
source terminal.
•
•
B
A
•
Case the SD-9's power cord to the SD-9
body as shown in the figure.
Each of two ready-lights (A and B) lights up
for each circuit.
When the SB-900's power is on, the SD-9
starts to charge the power in sync with the
SB-900, and the ready-light lights up in red.
The ready-light goes off when the power
charge is completed.
The ready-light blinks in red when there
is danger of the SD-9 overheating because
of its repeating flash operation (power
charge does not start). It stops blinking
when the SD-9 is cooled down to normal
temperature (power charge is available).