Sharp 13VT-N100 Service Manual page 23

REMOVING AND INSTALLING THE CAS-
SETTE HOUSING
• Removal
1. In the cassette eject mode, remove the cassette.
2. Unplug the power cord.
3. Remove in the following numerical order.
a) Remove two screws 1.
b) Slide and pull up the cassette housing control.
Figure 1-1.
• Reassembly
1. Before installing the cassette housing control, short-
circuit TP7701 and TP7702 provided at the left of the
main PWB, prug in the power cord. The casecon drive
gear turns and stops when the positioning mark ap-
pears. Engage two teeth of casecon drive gear with
the three teeth of casecon drive angle gear, and set on
the mechanism chassis as shown below.
Casecon
drive gear
Figure 1-2.
2. Install in the reverse order of removal.
Notes:
1. When fitting the S/E sensor holder to the cassette
controller frame L/R, take care.
2. Misengagement of teeth of casecon drive gear and
drive angle gear causes malfunction. (The cassette
cannot be set, load and ejection are repeated).
3. In the case when you use the magnet screw driver,
never approach the magnet driver to the A/C head, FE
head, and drum.
4. When installing or removing, take care so that the
1
cassette housing control and tool do not contact the
guide pin or drum.
5. After installing the cassette housing control once per-
form cassette loading operation.
TO RUN A TAPE WITHOUT THE CASSETTE
HOUSING CONTROL ASSEMBLY
1. Short-circuit TP7701 and TP7702.
2. Plug in the power cord.
3. Turn on the power.
4. Open the lid of a cassette tape by hand.
5. Hold the lid with two pieces of vinyl tape.
6. Set the cassette tape in the mechanism chassis.
7. Stabilize the cassette tape with a weight (500g) to
8. Perform running test.
Weight to prevent
float (500g)
Notes:
1. The weight should not be more than 500g.
2. Take care not to damage the tape when the Cassette
Casecon drive
is set in the mechanism shassis or taken out of it
angle gear
because the supply/take-up poles are shifted foward
the tape loading direction in the EJECT position.
23
prevent floating.
500g
Figure 1-3.
13VT-N100
13VT-N150
13VT-CN10
Mechanism chassis