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A-711/701L
CIRCUIT DESCRIPTION
Operation of UD-7 system
The
flow
chart
from
power
on
through
sound
generation
START
TU : TUNER
microprocessor
DE : DECK
microprocessor
GE : GE microprocessor
There is POWER
ON time.
POWER
ON
YES
System ON code
output.
<< timer PLAY €
POWER ON all
the units
GE
TIMER REC
YES
setting
Last condition
selector (When a
tape is used deck
B is prioritized.)
POWER ON
pe
Tape is recordable
System
ON code
output.
~~
4
Selector is TUNER
POWER
ON all
|
the units
YES
GE
r
Processing of
B DECK is in
te TIMER PLAY
Al TIMER 1
|
recording state
14
A-711/711L
CIRCUIT DESCRIPTION
@ Flow chart of Al TIMER 2
<TUNER>
<cD>
<GE>
Executes Al
TIMER
2 SET
{ON}
Replays the Ist
and 2nd musics
on DISC TRACK
POWER
ON ail
this units
CO the selector
Tuner the selector
STOP at the end
of the 2nd music
on DISC TRACK
Execute by
switching to the
broadcasting
sta-
tion program
POWER
OFF at
the Timer off time
Operation of Al TIMER 2
co
GE-711
_———
Saar
aad A-71V/711L
GE
AMP:
TUNER
7
microprocessor
microprocessor
microprocessor
£xXi> 1C18
<X0571C6
&x0S? 1C5
SYNCHRO
"~
DATA
SYNCHRO
DATA
COMPARATOR
DATA
(4bit)
14
A \«2se <X09>
13
When
the comparator
output (pin. 14) volume is 5V,
volume up is not executed
(When volume is
set at abs
25V
FIX
deh
is set
at about
wor]
Volume position regulating circuit.
VRH3/3).< X09>
SOK(B)
GE data selector
Volume position check for the cor-
rection of loudness curve.
{With the Al TIMER
1, this is off.)
15
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