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7.
DIAGNOSTIC
TEST
<
BEFORE ACTIVATING THE TEST MODE
>
The A4 GTR and BASS have
a
test mode for checking the unit's functions.
When this test mode
is
activated,
the
data
in
the
A4
is
not initialized.
Nevertheless, the data could be initialized
by
mistake, so
it
is
advisable
to
save any user data
to a MIDI
data
filer.
If
necessary, the data
in
the
A4
can be returned to the factory settings (preload
data)
by
carrying
out the
operation
for
setting preload data after this test mode
is
activated.
The required equipment and
settings
for the test
mode are pictured below.
<
SETUP FOR TEST
>
<D INPUT
©
OUTPUT L/MONO
& R
©
VOLUME
®
EXT.
CONTROL
OUT
1
& 2
©
MIDI
IN
&
MIDI OUT
<0. ACTIVATING
THE TEST MODE
>
(1)
Switch
the power on
while
at the
same time pressing both
the
[USER/PRESET]
and [WRITE] buttons on the front panel.
The test mode will activate,
and the internal battery voltage and
MIDI
circuitry
will be
checked automatically.
(2)
In
this mode, the
switches have
the
following functions:
[WRITE]
:
Press the [WRITE] button
to
start checking each
item.
[MODEA]
:
When
[MODEA]
is
pressed, the test moves ahead
to the
next item
to be
checked.
[MODEY]
*.
When
[MODEV]
is
pressed, the test moves back
to the
previous
item
to be
checked.
11

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