Korg A4 User Manual

<1.
INTERNAL
BATTERY
CHECK
>
(1)
When
the test
node is activated, the
voltage
of the internal battery
is
checked
automatically.
(2)
When an error
is found,
all
LEDs on
the panel
blink,
except
PEAK.
The
display
will indicate
the error
details
as below.
When the
battery
is low,
(—if~ I i—
i
and
£_/
w
ii|
appear
alternately.
When
the
battery
voltage is high
or
no battery
is loaded,
L
[-
LJ
7
'
and
'
'
'will
appear
alternately.
(3)
When
this
check
ends
normally, the
test
function
automatically
moves on
to
the
next item
to
be
checked.
<2.
MIDI CIRCUITRY
CHECK
>
(1)
When
the
above
check
ends
normally,
the
test function
automatically
checks
the MIDI
circuitry.
(2)
When an error
is
found, all LEDs
on the panel
blink,
except
PEAK.
The
display will
indicate the error
details
as below.
nd
and
Er~
will
appear
alternately.
(3)
When this check ends
normally,
the test
function automatically
moves
on
to the next item to be
checked.
<3. CPU
CHECK
>
(1)
When
all
the
above
checks
end
normally,
the
display will
indicate whether
the
CPU
mounted
on the
main
board
is
for GTR or BASS.
Confirm
which
it is.
For A4GTR
or
For A4BASS
EE
(2)
When
the
above display has
appeared for
0.5
seconds, the
test
function moves on
to
the
next check item.
12

Korg A4 Specifications

General

Brand	Korg
Model	A4
Category	Amplifier
Language	English