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MECHANICAL
PROGRAM
SELECTION
$4 {Push Switch)
O)
$3 {Sensing Switch)
( Ratchet Spring)
{ Plunger)
Manual selection
1. When
the
push
switch
is pressed,
the
plunger
operates.
2. Plunger pulls the ratchet spring to momentary then
it returns to the left.
3. Ratchet spring turns the cam.
4. As the cam rotates, the head moves
up and down
and program is Selected.
PRESSURE
OF
PRESSURE
ROLLER
Instruments required:
Standard cartridge for measuring of pressure roller,
spring gauge.
Measuring figure:
Refer to fig. ©.
Measuring method:
Insert the standard cartridge in the tape recorder,
and take the measurement
by pulling it with the
spring gauge.
Standard value:
12004200 gr.
HEAD
PLATE
ATTRACTION
Instrument required:
Spring gauge.
Measuring figure:
Refer to fig. 7.
_ Measuring method:
Place the set into the mode of program 1, and take
the measurement by pushing it-downward with the
spring gauge.
Standard value:
LlO4 20 er.
ADJUSTMENTS
Head
Base Plate /
Automatic selection
lf the sensing foil attached to the cartridge tape, the
plunger functions when
the sensing switch is closed
by the sensing foil, thereby selecting program can be
made automatically.
Pressure
Roller
'
.
Lock Lever Spring
Spring Gauge
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