Assembling Of Mechanism Section And Part Replacement (Disassembling And Assembling) - Sharp VL-Z700S-T Service Manual

8. ASSEMBLING OF MECHANISM SECTION AND PART REPLACEMENT
(DISASSEMBLING AND ASSEMBLING)
This section describes the method of assembling the mechanism section and the method of part replacement.
For how to remove the cabinet etc., refer to "3. DISASSEMBLY OF THE SET".
<Cautions>
1. Cut washers removed at the time of part replacement etc. should be replaced with new ones without fail.
2. When assembling the mechanism, take care to prevent screws, washers and foreign matter from getting into it. If such things
get into the mechanism, it will cause the mechanism to malfunction.
3. Be sure to use the specified cleaning liquid, oil, grease and loctite adhesive shown below. Failure to do so will cause the
mechanism to malfunction.
Oil: Cosmo Hydro HV22 (Cosmo Oil)
Grease: Molykote YM-103 (Dow Corning), Suncall CFD-409Z (Sankei Chemical Co., LTD.)
Cleaning liquid: Industrial ethyl alcohol
8-1. Mechanism mode
To operate the mechanism singly, apply 3 to 4V DC to the loading motor.
(Do not apply external voltage to the loading motor with the mechanism connected with the main circuit board. Doing so could cause a failure.)
(1) Ejection mode
This mode is used to take out a cassette. In this mode, the
ejection lever is shifted farthest in the direction shown by
Arrow A. (In this mode, the cassette controller assembly
cannot be locked.)
EJECTION MODE
(3) L start mode
This mode is used for the Tu reel hub to take up the tape
of a cassette whose leader tape is visible. (In this
mode, the S main brake is located away from the S reel
table.)
S reel table
S main brake
L START MODE
Loctite adhesive: 1401B (Three Bond)
(2) Standby mode
This mode is used to set a cassette. In this mode, the slide
chassis is farthest away from the drum and the ejection lever
is turned (the cassette controller assembly can be locked).
(The tip of the ejection lever is hidden behind the main chassis
and the moving part of the down SW is visible.)
Ejection lever
Back view
Main chassis
(4) Stop mode
This mode is used for stopping (camera mode:
RecLock). In this mode, the S and T pole bases are
pressed against the drum base and the S main brake
is engaged with the S reel table. However the pinch
roller and capstan shaft are separated.
15
STANDBY MODE
S pole base
Drum base
S reel table
S main brake
STOP MODE
VL-Z700S-T
VL-Z800S-S/E-S/E-T/Z900H-S
VL-Z950S-S/E-A/E-S/E-T/E-W
Down SW
(moving part)
Back view
Ejection lever
Main chassis
T pole base
Capstan shaft
Pinch roller