Yongnuo YN-622C User Manual

When half-pressing the shutter button of the
camera, the hot-shoe flash on the receiver will be
awakened. (for A/B type camera only)
Under any connection type, [Test] button can be
pressed to awaken and test the flash on the transceiver
and other transceivers at the same channel.
Test flash with the mode set by the flash, and under
the mode of E-TTL it may fire in a lower output.
Refer to the following figure, the transmitter sets A
+B two groups of flash test, hold down the[Test] button,
the flash on A and B of the receiver will be awakened,
and when loosening [Test] button will fire a test flash.
Flash Awaking and Testing Flash
※ If the flash can not be awakened, manually
awaken the flash before shooting.
※ Using PC port to connect with flash without the
awakening function.
※ All the indicators going out when flash fires.
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Yongnuo YN-622C Specifications

Power

battery type	2x AA batteries (1.5v Alkaline or 1.2v NiMH)
standby time	60 hours
max safe trigger voltage on hot-shoe centre pin	6 volts

Connectors

canon hot foot	with locking ring and pin
canon hot shoe	for mounting hot-shoe flash
pc-sync screwlock socket	sync out only

Weight and Dimensions

dimensions	90 x 53 x 25mm (39mm incl. hot-foot)
weight	79gm without batteries