MFJ-926B HF Automatic Remote Antenna Tuner
Instruction Manual
2010 MFJ Enterprises, Inc.
12
To reset the tuner to these defaults:
1.
Turn off the power to the tuner.
2.
Press and hold
only
the [ANT] button while turning the power on. Both LEDs will blink until the
button is released.
3.
Within four seconds of releasing [ANT], press the [TUNE] button once.
4.
After releasing [TUNE] for four seconds, Flash three times and resume normal operation.
WARNING:
If the MFJ-926B is not behaving normally or acting erratic, try resetting the tuner
to factory defaults.
Delete Entire Antenna Memory
To delete the entire antenna memory:
1. Turn off the power to the tuner.
2. Press and hold
both
the [TUNE] and [ANT] buttons while turning the power on. It takes
approximately three seconds to delete the memory bank.
3. Flash three times and release the buttons to resume normal operation. Remember that the antenna
memory will be lost!
Total Reset
To erase antenna memories and reset to factory defaults:
1. Turn off the power to the tuner.
2. Press and hold
only
the [ANT] button while turning the power on. Both LEDs will blink until the
button is released.
3. Within four seconds of releasing [ANT], press the [TUNE] button three times.
4. After releasing [TUNE] for four seconds, both antenna memories are deleted and factory defaults
are reset. The total reset takes approximately six seconds.
5. Flash three times and resume normal operation.
Self Test
A self-test routine will check the functions of the MFJ-926B. This routine checks the LEDs, the internal
buttons, the internal memory, and the power-down circuitry. During the self-test, you may stop the test
by turning off the unit; however, this should NOT be done during the memory test or the memory could
be corrupted. The self-test can be completed in approximately 10 seconds.
Note:
Performing the self-test will reset the unit to its factory default settings.
Here is the self-test procedure:
1. Turn off the power to the tuner.
2. Press and hold
only
the [TUNE] button while turning the power on.
3. The test begins by blinking the firmware version number via the two front panel LEDs. The
green LED blinks first, followed by the red LED. The version number X.Y is represented by the
number of times the green LED blinks for X and the number of times the red LED blinks for Y.
For example, green LED blinks one time and red LED blinks two times represent firmware
version number 1.2. This also tests the two LEDs.
