Troubleshooting
Diagnostics
7-9
Burnin Test (
b
b
b
bu
u
u
ur
r
r
r
)
This runs the above diagnostics in a continuous loop for reliability veriÞcation. A cable
between MIDI Out and MIDI In must be installed before running it. After each run of
the diagnostics, the pass count will be displayed brießy. If more than 255 times, the
count will remain at 255.
Initialize EEPROM (
i
i
i
in
n
n
ni
i
i
i
)
This ÒtestÓ erases the EEPROM and then rewrites all of the factory default setups. The
Internal Voices setup, 32 MIDI Setups, effects settings for the 32 sounds, and the global
parameters are all restored to their factory default value. If there is a problem
rewriting, the test will fail.
CAUTION
: This test erases all user edits and replaces them with the original factory defaults.
Sound Board Diagnostics
This diagnostic group tests the internal sound module of the Stage Piano. Most tests
are for service technicians but the Sine Wave test can be useful for checking audio
systems. Individual tests are selected, run, and rerun as described above for the CPU
diagnostic group.
When the Sound Board group is Þrst started, a Òsound board presentÓ test is Þrst
executed. In the event of a serious malfunction, a
n
n
n
no
o
o
os
s
s
s
(No Sound Board) message
may be displayed which means that communication with the sound board could not
be established.
Interface Test (
i
i
i
in
n
n
nf
f
f
f
)
This test veriÞes the integrity of message transmission to the sound board by sending
thousands of pseudo-random bytes and checking them.
ROM Test (
r
r
r
ro
o
o
om
m
m
m
)
This test calculates the checksum of the sound board software code and compares it
with the correct value.
RAM Test (
r
r
r
ra
a
a
am
m
m
m
)
Read/write memory on the sound board is checked by this test.
Timers Test (
t
t
t
ti
i
i
im
m
m
m
)
This tests the hardware timers used by the sound board software.
Sound ROM Test (
s
s
s
sn
n
n
nr
r
r
r
)
This test calculates the checksum of the sound ROM content and compares it with the
correct value.
Sound Chip Test (
s
s
s
sn
n
n
nc
c
c
c
)
This tests several functions of the sound ASIC.
