Promaster ST1, Руководство пользователя

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24
Check that the batteries are installed in the correct
orientation.
Replace the batteries if they are low or out of power.
Troubleshooting Guide
Power does not turn on.
The slave speedlight does not fire .
Make sure all transceivers are powered on and the
speedlight is on and in a ready state.
Check that the transmitter and receiver are set to
the same channels and groups.
Check the electrical contacts of the transmitter and
camera and all speedlights. Reposition them
or clean the contacts if necessary.