MFJ-991 / MFJ-994 IntelliTuner Automatic Antenna Tuners
Instruction Manual
©
2004 MFJ Enterprises, Inc.
16
Note: Resetting to factory defaults does not erase the antenna memory.
To reset the tuner to these defaults:
1.
Turn off the power to the tuner.
2.
Press and hold
both
the [TUNE] and [L-DN] buttons while turning the power on.
3.
Release the buttons when both meter needles read full scale.
4.
Resume with normal operation.
WARNING:
If the tuner is behaving weirdly or acting erratic, try resetting the tuner to factory
defaults.
Delete Antenna Memory
To delete the antenna memory, turn off power to the tuner, and then press and hold
both
the [TUNE] and
[C-DN] buttons while turning the power back on. Both meter needles will read half scale. Press the [C-
UP] button to delete antenna memory (both meter needles go to full scale), or press the [L-UP] button to
cancel (both meter needles go to zero). Release the button to resume normal operation. Remember that
the antenna memory will be lost!
Total Reset
To erase the antenna memory and reset to factory defaults, press and hold down the [TUNE], [C-DN] and
[L-DN] buttons while turning the power on. Follow the confirmation procedures for “Delete Antenna
Memory” above. Remember that all antenna memories will be lost and tuner setting will return to
default!
Self Test
A self-test routine checks the functions of the tuner. This routine checks the meter, the front-panel
buttons, and the internal memory. 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 30 seconds.
This test also can be used to test the MFJ-993RC Remote Control. Make sure to lock in the [AUTO]
button on the tuner before starting the self-test, and press the buttons on the MFJ-993RC instead of the
front-panel buttons when prompted.
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, and press all buttons to the
out
position.
2. If testing the MFJ-993RC Remote Control, connect it to the Remote Port and make sure the [AUTO]
button
on the tuner
is locked in; otherwise, go to next step.
3. Press and hold
only
the [TUNE] button while turning the power on.
4. The test begins by the forward needle of the meter going up slowly to full scale and then drops to
zero, followed by the reflected needle going up slowly to full scale and then dropping to zero. This
tests the meter. Release the [TUNE] button before the reflected needle goes to zero.
Summary of Contents for IntelliTuner -991
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