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Fisher CA-890 - Page 9

Fisher CA-890
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EXPLANATION
OF
FUNCTION
(TMP47C400N)
System
Outline
of
TMP47C400
This
program
operates
an
audio
full
remote
control
system
MAIN
GPU.
The
system
configuration
is
as
follows.
TUNER
TMP4270N
Remote
Control
Device
[ee
)
I]
wainccpu
DECK
TMP4270N
TMP47C400
vA
a»
=
Laeeay
emo
emo
TMP4270N
Amplifier
Keys
System
Configuration
Remote
Contro
Device
Control
...
The
remote
contro
device
uses
infrared
rays
to
signal
commands
that
are
picked
up
by
the
main
unit
and
displayed
on
the
CRT.
Main
Unit
Key
Control...
Carries
out
control
via
the
main
unit
function
keys
and
Mute
(key
inputs),
transmitting
the
contents
to
the
CRT.
Individual
Component
Key
Control
...
The
TMP4270N
SUB
CPUs
installed
on
each
component
provide
serial
transmission,
control,
and
transmission
of
contents
to
the
CRT.
The
Auto-function
Function...
With
this
function,
all
Tuner
key
operation,
Phono
and
CD
Start,
and
Deck
Play
can
be
initiated
from
the
remote
contro!
device;
also,
the
Function
switch
can
be
changed
and
a
PLAY
signal
can
be
output
to
the
designated
component
and
a
STOP
signal
to
all
other
components
upon
serial
reception
from
one
of
the
SUB
CPUs.
:
Synchro
RECORD
Function...
Using
either
the
remote
control
device
or
the
deck
main
unit
to
put
deck
1
on
REC-PLAY
with
the
Synchro
switch
in
the
ON
position
automatically
puts
the
unit
in
the
REC-
PAUSE
mode.
If
the
CD
or
phonograph
record
is
then
played,
a
PAUSE
command
is
output
to
deck
1
and
the
unit
enters
the
record
mode
whenever
the
MUTE
signal
is
low.

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