Panasonic NV-HS1000, Service Manual

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D. EJECT OPERATION
The main cam gear rotates in the direction of the arrow.
The projection
(B)
of the carriage connection gear engages
with the recession (A) of the main cam gear. The carriage
connection gear rotates in the direction of the arrow to
perform the Eject operation.
<NOTE>
If the Eject operation is performed without the cassette
carriage installed while repairing or making the mechanical
phase alignment, the main cam gear will not engage with
the carriage connection gear and will not rotate.
To perform the Eject operation with the cassette carriage
not installed, it is necessary to rotate the carriage connec­
tion gear by hand in the direction of the arrow.
(Rear Side)
MAIN CAM GEAR
RECESSION (A)
CASSETTE
CARRIAGE
SIDE PLATE
(R)
CARRIAGE
CONNECTION GEAR
PROJECTION
(B)
(Front Side)
Fig. S5 Top View of Eject Operation
E. TAKE-UP PHOTO SENSOR OPERATION
Note the following matters for Take-up Photo Sensor
Operation .
1) While servicing of the K-Mechanism, the unit will not
operate properly if a strong light (ex, Fluorescent
light, Spot light) falls on the Take-up Photo Sensor.
In this case, cover the Take-up Photo Sensor to
prevent the light from falling on it.
2) While servicing of the K-Mechanism with "Power On"
and without cassette tape inserted, the Unit does not
operate properly.
F. POWER TRANSISTOR SERVICING
When removing the connector of the Power Transistor,
hold the Power Transistor by hand to prevent damage .
1-1-2. REMOVAL OF THE CASSETTE TAPE
If the electrical circuit is defective and the action of
unloading and front unloading do not work properly, it is
possible to remove the cassette manually. There are 2
methods of removing the cassette.
1. HAND OPERATION
1)
Remove the bottom plate.
2)
Turn the WORM GEAR to "A" arrow mark direction
manually as shown in Fig. S6, moving the LOADING
POST to the unloaded position.
3)
Turn the CAPSTAN clockwise to take up the tape.
4)
Turn the
WORM
GEAR again to eject the cassette.
Fig. S6
1-3