Panasonic RS-B25 - Input Scanning Terminals

during other
ffected by the
>. after PLAY
c. after PLAY
sec. after REC
. after PLAY
Command
H
Approx.
0.05sec.
mmand
H
Approx.
0.05sec.
Terminal
No.
Symbol
Name
Function/operation
e“L” for a short time during PLAY/REC PLAY/MS changeover.
9. PE3 PLAY Piunger ]
Output (1) STOP ~ PLAY ~ STOP/PAUSE
Play Command Stop/Pause Command
+5V H H
En a ote
0.18sec. 0.22sec. 0.05sec.
‘i fea
Stop Mode L Play Mode L Stop Mode
(2) PAUSE/REC PAUSE ~ PLAY/REC PLAY
Play Command
Pause Mode 3 Play/Rec Play Mode
(3) MS (FF/REW) > PLAY
Play Command
MS Mode L L Play Mode
(4) MS (FF/REW) > STOP
Stop Command
+5V H
Approx.
0.05sec.
ov
MS Mode E Stop Mode
10. TEST TEST ¢ Connection to GND.
11. Vss —- ¢ Connection to GND.
12. INT Reel Table Pulse ¢ Rotation of reel table (with ring, magnet) is detected by Hall IC
Input (DN6838-S) to judge the tape end.
e Rectangular wave input in PLAY, FF, REW, MS.
13. “RST Reset Terminal ¢ Used to reset the microcomputer when power is thrown in.
* Reset at “L’’ level (0.3 volt or less).
14. Vop Power Supply © Operative on 5.2 volts.
Terminal
15. PAd Key Input * Input of REW, Timer REC, MS, FF/REW switch.
REW (S706) || ¢ The above-mentioned inputs are read in accordance with PC¢4,
TIMER ($1) PC1, PC2, PC3 scanning.
16. PA1 ey Input ¢ Input of FF, Timer PLAY, switch.
FF (S707) || «The above-mentioned inputs are read in accordance with PC}4,
TIMER ($1) PC1, PC2 scanning.
PLAY (S901)
Name
Function/operation
Key Input
PAUSE
REC
AUTO REC MUTE
REC INH.
e Input of PAUSE, REC, AUTO REC MUTE, REC INH. switch.
¢The above-mentioned inputs are read in accordance with PC},
PC1, PC2, PC3 scanning.
Key Input
PLAY
STOP
4
Input Switch
Scanning
Input of PLAY, STOP switch.
*The above-mentioned inputs are read in accordance with PC1,
PC2 scanning.
Approx. 23msec.
Approx.
4msec.
0.5msec.
MS
Scanning
Approx.
6msec.
Note: (1) During scan signal measurement, dull up between pins
(9 ~@)) and Vop with about 10k@ resistance.
(2) There are 2 types of scans of PC3. (For MS detection)