RadioPopper PX - Manual (Page 24)

Trouble Shooting
Page 24
5) Shoot and observe the Link LED strobes momentarily following the shot on both the PX Transmitter and all PX
Receiver units. This is an indication that a radio transmission packet was sent and properly received by each PX unit.
Occasionally, the Link LED may not strobe on PX Receivers if the PX Transmitter is placed extremely close to the PX
Receiver. The new digital radio modulation used by the PX system is quite powerful, and the PX Receiver is extremely
sensitive. At very close range (within 12 inches or so) the PX Transmitter may “over-drive” the radio of the PX Receiver.
This will not damage the units, but it may prevent the radio packet from being clearly received. Perform all testing
within a few feet of separation between units.
6) You may optionally set Feedback Mode (F) to 3 on all units. In this mode, the PX Transmitter will show the number of
data bits sent on the display. Each PX Receiver will then display the number of data bits received. These numbers should
be the same for each individual shot. (They may be different numbers from shot to shot - this is perfectly normal).
7) Finally, you may reset the factory default settings of your PX units. Tab to the Reset menu (r E), press and hold the “X”
button for 5 seconds to initiate the reset. The next time your unit powers on, it will completely check itself and display
any hardware errors which may be present (the unit would begin blinking “E “ followed by a number on the display).
You should observe the software version, followed by a segment test of the display “88”, then power off. The LED lights
should gradually gain then dim in brightness.
If these tests are complete with expected results, then any issue is most certainly related to either the installation of the
PX units on your Master and Slave flash devices, or the configuration of your flash units themselves.
Flash Unit Configuration - Trouble Shooting
Once you’re sure your PX units are properly installed and operating normally, please check that your actual flash units are
properly configured for wireless flash operation.
1) Remove the PX Receiver from your Slave flash. Place your Slave flash such that it has a clear line of sight to the Master
flash on your camera, at a range of 3 to 5 feet. Now attempt to operate your flash system using the “line of sight” IR
system already built into the flashes. Your Slave flash should activate reliably and as expected at this time. If your Slave
flash does not operate as expected, then your Master and Slave flash units themselves are not properly configured.
2) Set the flash on your camera as “Master”, and set all of the remote wireless flashes to “Slave” or “Remote”.
3) Ensure Master and Slave flash units are both set on the same ETTL/iTTL. This channel is not related to the Radio
Channel set in your PX units.
4) If your flash units still do not operate, even without the PX units installed, please consult the owner’s manual supplied
with your particular brand and model of flash units. Refer to the manual’s section regarding wireless operation.