Sharp VL-NZ50S Service Manual page 15

8-3. How to operate with the circuit board without the cassette controller assembly.
In this method, if the procedure is followed incorrectly there is danger of damaging the mechanism and the tape, so except in special
cases, such as when measuring the VSR torque, do not perform this procedure. Normally operate this unit with the cassette controller
assembly attached.
Be sure to follow each caution mentioned.
(1) Apply DC3 ~ 4V to the loading motor to enter the standby mode.
(2) Securely press the movable piece L of the down SW with
cellophane tape or similar to turn on SW. (Take care that the
movable piece turns only in the shown arrow direction.)
Note: To enter REC mode, press the pin of the recognition switch M .
(Unnecessary in other modes.)
(3) Set the test mode (T-01) with the adjustment remote controller
without putting the tape, and the mechanical operation will
become possible with the mode key.
(4) For ejection, remove the tape of (2).
8-4. Phase matching
Referring to Figs. 8 and 9, align the phase for the following parts.
(1) Eject lever (2) Eject control lever
Note: Before disassembly, sufficiently check the marker position.
Note: When installing the joining gears, verify that the phase matching holes of the main cam and subcam are aligned to the hole of
the chassis.
Note: After the phase is aligned, turn the mode SW with hand, and verify that it turns nearly one turn.
(After verification, return it to the original position.)
Eject
control lever
Eject lever
Phase matching hole
(for gear)
(3) Mode SW
Phase matching hole
(for chassis)
Fig. 8
Phase matching
mark
Movable piece
of down SW.
Rotary di-
rection of
movable
piece
Side view
Fig. 7. LOADING START mode
(4) Main cam (5) Sub cam
Mode switch
Coupling
Main cam
gear
Phase matching hole
(for chassis)
15
VL-NZ50S/H/E/W/NZ80H
VL-NZ100S/H/E
Sub cam
Phase matching hole
(for chassis)
Fig. 9