2) Continuous pressing (Holding down
the
key)
a.
After the first step change 500msec elapses
and
subsequently one step change is made every
l 70msec and the display changes in sympathy.
But
if
the
pressing
is
started during the
VOLUME display,
the
first display
is
changed
6-3-9. Operation
of
FADER
I)
l st pressing
a.
The
attenuator
is
set
to
00
to
create MUTE
status. But
the
VOLUM£ display remains same.
b. The single segment
of
FADER
is
lit.
2) 2nd pressing
a.
Fading-in occurs
at
about
60msec/step up
to
the VOLUME value prior
to
the
MUTE condi-
tion.
b. FADER segment
is
lit every 5 steps, and finally
extinguished.
7.
THE STATUS THAT
WILL
BE
ESTABLISHED
WHEN
RESET BUTTON
Function:
Tape
1:
Tape
2:
Bass:
Treble:
Volume:
Balance:
Acoustic Memory:
Preset Station:
Tuner(FM)
OFF
OFF
Flat (Defeat)
Flat (Defeat)
40
dB
Point
IS PRESSED
(FLD
Volume
Indicator=
"3 ")
Center
Cancel
Cancel
to
BALANCE
without
change
of
setting, and
after the elapse
of
500msec, the setting will
change every l 70msec.
b. When the center value
is
reached, a 940msec
stop
occurs before going
to
the next step.
c. The rest
is
the same
as
I).
PRESS THE
FADER
KEY
I I
ST.
TIME)
t
__
LEVEL
PRESENTLY
SET
(dB)
-
--
-40
50
---------
-60
MUTE
t
-
------
-00
PRESS
THE
FADER
KEY
I 2ND. TIMEJ
ON
: LIGHTIN3
OUT:
EXTING~ISHING
Fig. 1-23
FADE
IN
8. RESET STATUS
WHEN
POWER
IS
ON
When
the
power for this micro-computer becomes
OFF,
the
clock ceases
to
operate and the
imer
status
is
maintained by the back-up capacitor.
fherefore,
the last setting
is
reset in principle.
Reset status when power
is
ON
Point
Function:
Tone:
Volume:
Preset status when
power
is
recovered
Last selection
Value
of
the last settirn.
If
power
is
turned OFF while
the
acoustic memof}i
is
being
loaded,
the
acoustic
d;,play
will
not
be reset.
OFF
at less than 26dB
➔
lst
setting
OFF
at 26dB or more
➔
26dB
(indicator
"5'')
Balance: Last setting
Acoustic Memory: Last setting for the
contents
stored
Fader:
OFF
in
MUTE
....
MUT: rel eased
OFF
in FADE-IN
➔
r
ADE-IN
terminated
Acoustic Lighting: Lighting terminated
BALANCE Display: VOLUME display
If the voltage
of
the back-up capacitor
hs
fallen
below the holding voltage
of
this micro--omf)uter
after
the
power has been switched
OFF
f•r a long
time, the last setting cannot be reset when
t:e p.ower
is
recovered.
-------------SERVICE
MANUAL AA·R22/L, AA-R32/L,
AA-R42-------------
l 7