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MECHANICAL ADJUSTMENTS
EQUIPMENT REQUIRED
Cassette-type Torquemeter (100g-cm/160g-cm)
. Power Switch
When one of the select buttons (except for the Pause and
e
Round-nose Pliers
Stop/Eject buttons) is pressed, this Swich is turned on by
e
Plus Screwdriver
the Shut-off Lever, so that the Motor starts rotating. The
e
APair of Tweezers
driving motor rotates the flywheel and the rotational force
e
Paintor Glue
transfered
by the
actuate
gear
makes
the
mechanism
function.
GENERAL REMARKS
* Check that the clearance of the switch contacts is 0.3 ~
1. When a repair or an adjustment work on the mechanism is
0.5mm with the Power Switch in contact with Shut-off
performed,
remove the Mechanism
Chassis from the unit
Lever as illustrated.
and supply 12V DC from the constant-voltage regulator to
the Ext. Power Jack on the Amplifier P.C.Board.
- Screw
2. Before and after the mechanism adjustment, clean the tape
Power Switch
contacting surfaces with a soft cloth soaked in alcohol.
Trouble may occur because of oil and grease stains.
0.3 ~ 0.5mm
The belts must be kept clean while the adjustments
are
performed.
3.
If the Pinch Roller or Belt has quality deterioration such as
scratches, replace it with a new one.
ee Shut-off Lever
4. When the cassette tape is inserted into the cassette holder,
.
the Play button can not be pressed.
If the
Mechanism
is required
to function
under
this
condition, push the Cassette Lever as illustrated, so that the
Button is released and the mechanism functions normally.
2. Play Mute Switch
This switch is normally closed and it is turned off by the
Slide Base when the Play button is pressed.
*
Set the unit in the playback mode and check that the
clearance
between
the
switch
contacts
is more
the
Erase Head
0.25mmas
illustrated.
Screw
a
Move.
more than 0.25mm
j
Slide Base Be
*
a
Push.
Cassette Lever
[ Play Mute Switch
Press the Pause button and check that the clearance
between the switch and the Slide Base is as illustrated.
5. This
Mechanism
does
not function
when
power
is not
The clearance should be less than 0.05mm.
supplied and any one of the buttons is pressed.
When the batteries are almost used up and the Play button is
pressed, the Slide Base stops halfway, making it difficult to
remove the cassette tape from the compartment. To avoid
this, replace the batteries with new ones beforehand.
Screw
Move.
less than 0.05mm
{
Position Adjustment of Leaf Switches
This model has the following three leaf switches. Checking and
adjustment for each switch must be conducted in accordance
with each adjustment item.
The unit should be set in the stop mode at each adjustment.
*
Power Switch
*
Play Mute Switch
*
AMSS Switch
Slide Base
Piay Mute Switch
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