Yongnuo YN-622C Datasheet download pdf (Page 28)

Troubleshooting

1. Fail to power on or automatic shutdown:

● The battery is loaded inversely or exhausted; it will power off

automatically when the battery is going to be exhausted in

case of being over discharged.

▲ Install the battery according to the correct direction the

battery compartment indicates and ensure the battery is full

and restart the power (refer to page 8).

2. The flash doesn't fire

Ensure the power of all equipments are full, the connection

among the transceiver, camera and the flash is reliable;

whether the indicator is set in the same channels and

controllable groups. Flashes recycle process, entering in the

state of overheating protection, ongoing zoom adjustment,

the flash enters into sleep status etc. may makes the flash

doesn't fire . Ensure the flash is in ready state, use the [Test]

button test the flash before using.

3. Fail to enable the 2nd curtain sync:

● That’s because the restriction of camera menu.

▲ It shall set the wireless function disabled if needs using the

2nd curtain sync.

4. Can't access into the external flash function menu or the

menu is displayed abnormally:

● The transmitter is not installed right , the contacts of the hot

shoe is stained or the power of the batter y is exhausted.

▲ Reinstall the transmitter and clean the contacts ,

batteries.

5. The assist beam emitter doesn't work:

Refer to page 24.

6. The on-top flash doesn't fire：

Enabled the master flash via the wireless function setting.

replace the

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Yongnuo YN-622C Datasheet Page 28