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Current will flow from Ress to Qaor, thus
Qaoz will be turned on, and as a result of the
integral pulse, Pin 11 of ICsor will momentarily
become L level.
l. When Pin 11 of ICsor becomes L level as a result
of the program within the IC, the output will
go into the STOP mode, and thus the unit will
cease operation.
4EMORY PLAY Operation
. Press the MEMORY PLAY switch on, and then
put the REW switch on.
. \[hen the tape counter indication reaches "999",
a pulse will be sent from the microcomputer
gCff.).
Current will flow from Rssr to Qaoz,
'ûruË
turning on Qeoz, and as a result of the
integral pulse, Pin 11 of ICsor will momentarily
become L level.
. When Pins g and 10 of lCsor are to L level by
means of the program in the IC, the unit will
momentarily go into the STOP mode and then
commence PLAY.
ounter Repeat
Press the REPEAT (counter) switch on. When
re tape stops during PLAY or REC/PLAY (auto
op), the unit will automatically go into the REW
.ode, and when the tape counter indication
raches "999", it will revert to PLAY.
, Press the REPEAT (COUNTER) switch Seoz-r
on, and set Pins 8 and I of ICsor to the L level.
\ilhen the tape stops during PLAY or REC/
PLAY, Pin 12 of ICsor will momentarily go to
the L level. When Pins 8 and 9 of ICsor âreset
to the L level by means of the program in the
IC, and Pin 12 goes to the L level, the unit will
automatically go into the REW mode.
. When the counter indication becomes "999",
a pulse will be emitted from the microcomputer
(ICaoc). Current will flow from Rass to Qaoz,
resulting in Qeoz being turned on, while Pin 11
of ICsor will momentarily go to the L level as a
result of the integral pulse.
If Pin 11 of lCsor goes to the L level during the
REW operation of the unit, resulting from Pin
12 going to the L level, the unit will go into the
PLAY mode as a result of the program contained
I C s o r .
GT-FS|5O
5. Because of the program contained in lCsor,
COUNTER REPEAT is not possible during FF
or REW (Auto stop is possible).
End Repeat
Press the REPEAT (END) switch on. If the tape
stops during PLYA or REC/PLAY (auto stop), the
unit will automatically go into the REW mode,
and when the tape has completely rewound, the
unit will once again go into the PLAY mode.
1. Press the REPEAT (END) switch Ssoz-z on, and
set Pins 8 and 9 of ICsor to the L level.
2. For details of the REW operation, refer to para-
graph 2 "COUNTER REPEAT".
3. When the tape completely rewinds, Pin 12 of
ICsor will once again momentarily go to the L
level.
Pinch Solenoid Switching Circuit
This circuit is designed to protect the pinch
solenoid from overheating. It operates after the
PLAY switch has been pressed on, by applying a
high voltage (approximately 13V) to the pinch
solenoid for a period of about 0.5 seconds, in order
to increase its attractive force, and then reducing
the voltage to about 6V after the solenoid has
operated (Fig. 7-6).
1. When the PLAY switch Ssos is pressed on,
Qs r r becomes conductive, the pinch solenoid
Sl,rror
operates and the unit goes into the
PLAY mode (Refer to section entitled "PLAY
mode").
_ a
e
Fig. 7-6
Pinch solenoid switching circuit
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