Panasonic RS-B25 - Microcomputer Terminal Functions; Record;Playback Status Signals

m@
MICROCOMPUTER
TERMINAL
FUNCTION
AND
WAVEFORM
(1C901:
LM6417E1825)
ee
Symbol
Name
Function/operation
1.
PD¢
Rec
Indication
¢“L”
level
on
receiving
REC
command.
Output
¢“H”
level
Apporx.
0.2sec.
after
STOP
command.
°“L”
level
immediately
after
power
ON
in
Timer
REC.
Rec
Command
Stop
Command
Approx.
0.2sec.
2. PD1 Rec Mute ¢In REC PAUSE mode,
“H” with AUTO REC MUTE button pressed; “‘L” with the button
released.
ein REC play mode,
(1)
“H”
with
AUTO
REC
MUTE
button
pressed;
the
mode
changes
to
REC
PAUSE,
Approx.
4.5sec.
later,
and
then
the
level
is
“L”.
Auto Rec Mute Command
+5V
OV
Rec Play Mode Rec Pause Mode
(2) When AUTO REC MUTE button is pressed for Approx. 4.5sec. or
over, the mode changes to REC PAUSE with AUTO REC MUTE
button released, and then the level is ‘‘L’’.
(3)
When
PLAY
button
is
pressed
within
Approx.
4.5sec.
after
pressing
AUTO
REC
MUTE
button,
the
mode
changes
to
REG
PLAY,
and
then
the
level
is
“‘L’’.
|
3. ae i.
¢ Non Connection.
| 4
PD3
Play Indication
Output
Pause Indication
Output
e“L” on receiving play command.
°“H” Approx. 0.2sec. after STOP command.
¢“L” immediately after POWER ON in Timer Play.
Play Command
Stop Command
+5V
Approx.
0.2sec.
OV
°“L” and “H” are repeated at Approx. 1sec. cycle on receiving
PAUSE command.
¢“H” on receiving STOP command.
Pause Command Stop Command
Approx. Approx.
ov
L L L
MS
Indication
¢“L”
and
“H”
are
repeated
at
Approx.
0.16sec.
cycle
on
receiving
Output
MS
command.
MS Command
+5V
ov
Approx.
0.16sec.
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