Descargar Imprimir esta página

Technics RS-B25 Manual De Servicio página 10

Publicidad

Idiomas disponibles

Idiomas disponibles

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.
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)

Publicidad

loading

Productos relacionados para Technics RS-B25