D-18DWireless Multiple Flash-unit PhotographyUse the rotary multi selector toenter the same PIN code set inprocedure , and then press theOK button.• Press the rotary multi selector1 3 to choose a number.• Alternatively, rotate the rotarymulti selector to choose a number.• Press the rotary multi selector4 2 to move to another digit.Check that a link has beenestablished.• When a link is established, theindicator lights up green.• When there is no link, theindicator flashes slowly in orange.Check the channel, link modesetting and PIN code on thecamera and enter the PIN codeagain.