Sanyo M7790K - MECHANICAL ADJUSTMENTS; EQUIPMENT REQUIRED; GENERAL REMARKS

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