FLASH
SOFTWARE
©
Cyrus
Audio
Ltd
Jun
2014
11
CD
t
Service
Manual
Issue
1
Flash
Software
Overview
The
CD
players
feature
upgradeable
software
for
the
control
system.
The
main
PCB
includes
a
microcontroller
with
internal
memory
that
includes
the
software.
The
microcontroller
is
labelled
during
the
manufacturing
process
to
show
which
software
version
is
installed.
If
the
software
version
is
revised
at
some
point
this
indication
should
be
clearly
deleted
with
a
cross
marked
on
the
device
label.
The
most
reliable
method
to
check
the
software
version
(without
dismantling
the
player)
is
to
read
it
from
the
display
as
follows
‐
1.
Connect
power
to
the
unit
and
set
to
Standby
(power
light
red).
2.
Press
and
hold
the
Standby
key.
3.
The
software
version
will
be
shown
on
the
display.
Re
‐
programming
NOTE:
Product
software
must
never
be
replaced
with
an
earlier
version
than
already
installed.
The
CD
players
are
programmed
by
connecting
a
USB
cable
directly
from
the
main
PCB
to
a
computer.
The
location
of
the
programming
connector
on
the
control
PCB
is
arrowed
in
the
picture
on
the
right.
CAUTION:
Ensure
you
have
a
new
firmware
file
to
hand
before
starting
the
process.
Never
disconnect
the
cable
until
the
new
software
is
installed.
1.
Disconnect
the
mains
from
the
product.
2.
Locate
SW702,
a
microswitch
next
to
the
USB
connector
shown
in
the
drawing.
3.
Press
and
hold
SW702.
4.
Connect
a
mini
‐
USB
cable
to
a
free
USB
port
on
a
computer.
5.
Connect
the
mini
‐
USB
cable
to
the
socket
on
the
main
PCB.
6.
The
Red
LED
on
the
main
PCB
will
light
to
indicate
that
USB
power
is
available.
7.
Release
SW702.
8.
A
new
window
will
pop
up
on
the
PC
which
will
show
the
current
firmware.bin
file.
9.
Delete
the
existing
firmware.bin
file.
10.
Copy
the
new
firmware.bin
file
supplied
by
Cyrus
to
this
folder.
11.
Once
the
file
has
been
copied
remove
the
USB
cable.
12.
Power
up
and
check
the
new
software
version
as
described
above.