Roland groovebox MC-303 Service Notes page 8
First edition issued by rja
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Also See for groovebox MC-303:
- Owner's manual (131 pages) ,
- Service notes (24 pages) ,
- Manual (2 pages)
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MC-303
May. 1996
ROM, RAM,
Battery
Test
Connecting
MIDI-IN
and
MIDI-OUT
with
a
MIDI
cable
and
make
it
form
a loop.
MIDI-IN
b
MIDI-OUT
£
MIDI
*r
-
~f
)1<X'
>l
-
-flgMi,
Li1"o
i
Turn on
the
power
while pressing
[ARPEGGIO]
and [R(BD)]
buttons
to
enter the
test
mode.
And
holding
down
them
until
appeare
the
following
display.
r* h*-
KKA*£tf>,
[ARPEGGIO]
t
[R(BD)]
*K*>£#L&;0**>
Memory
test
runs automatically.
Battery
test
runs automatically.
MIDI
test
runs automatically.
Program
ROM
NG
=>
Check
IC7(main)
Data
ROM
NG
=>
Check
IC8(main)
Working
SRAM NG
=>
Check
IC5,IC6(main)
* Press
[ENTER]
or
[SHIFT]
to
return top
of
the
test
mode.
*
[ENTER]
^
[SHIFT]
ifft
t
CURRENT
tSHm
W
NEXT
SB
fwriwi
u
CURRENT
NEXT
fffls
kl
MB
Battery
NG
Battery
is
not
mounted
or
voltage
is
low.
* Press
[ENTER]
or
[SHIFT]
to
return
top
of
the
test
mode.
*
[ENTER]
fr
[SHIFT]
i9ft
t
8
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