Flex 4EX2 / 6EX2 MRX CE Instruction Manual
November 2018
Page 19 of 44
B.
Assigned Channel Scheme (preset system channel)
Both transmitter and receiver are assigned with a matching preset channel
(channel 01 - 62).
1. Rotate the power switch key to OFF ( 0 ) position.
2. With the STOP button elevated, press and hold PB1 and PB2
at the same time.
3. Rotate the power switch key to ON ( I ) position.
4. Release PB1 and PB2 at the same time. The system will enter
Channel Setting mode. The Status LED displays current
channel setting with red and green blinks. A green blink
represents the tens (+10) and a red blink represents the units
(+1). For example, 1 green blink followed by 5 red blinks is
channel 15. If the transmitter has been configured for the “unassigned channel” the
Status LED will be a solid orange.
5. Change transmitter channel by pressing PB1 to increment the units (+1) and PB2 to
increment the tens (+10). For example, press PB2 two times and then PB1 four times
for channel 24 (Status LED blinks 2 greens and 4 reds). Make sure the newly selected
channel appears on the Status LED before proceeding to the next step.
6. Transfer the newly selected channel to the receiver by rotating and holding the power
switch key at START position until the Status LED turns to solid green (transfer
complete). Turn off the transmitter power if solid green is not shown on the Status LED
after more than 10 seconds (transfer incomplete); the transmitter will revert back to its
previous channel setting. Make sure the receiver power is turned on and the receiver
is within the operating distance during the entire process.
Skip step 6 if changing
receiver channel is not required.
7. Exit Channel Setting mode by rotating the power switch key to OFF ( 0 ) position.
NOTE:
When selecting a new channel, make sure each button press does not
exceed 3 seconds.
Important Note:
Step 6 illustrated above is strictly required if you are intending to change the entire
system channel (both transmitter and receiver). The entire system will no longer work if
step 6 is skipped because the transmitter and receiver channels are now different (new
vs. old). In this case you would have to redo steps 1-4 and step 6 to transfer the newly
selected transmitter channel to the receiver.
