Mechanical Section Assembly And Parts Replacement (Disassembly And Reassenbly) - Sharp VL-AX1S/H Service Manual

Liquid crystal digital camcorder
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VL-AX1S/H/E/EW/EX
8. MECHANICAL SECTION ASSEMBLY AND PARTS REPLACEMENT
(DISASSEMBLY AND REASSEMBLY)
Mechanical section disassembly and reassembly are explained in this section.
For removal of the cabinet, etc., refer to 3. DISASSEMBLY OF THE SET.
<Precautions>
1. Always replace cut washers that have been removed, for example in parts replacement, with new ones.
2. When reassembling, be careful not to allow screws, washers or foreign matter to enter. They can cause mechanical misoperation.
3. Use the cleaning liquid, oil, grease and screw lock that are specified below. Use of any other kind can cause mechanical
misoperation.
Oil: Cosmo Petroleum : Cosmo Hydro HV22
Grease: Dow Corning : Moly Coat YM-103
8-1. On the mechanical modes
When operating the mechanism separately, apply DC3~4V to the loading motor.
(When the mechanism is connected to the main PWB, do not apply external voltage to the loading motor. It may cause operational problems.)
(1) EJECT mode
The mechanism position to take out the cassette where the
EJECT lever is extremely shifted in the A direction. (It is impos-
sible to lock the cassette controller assembly in this mode.)
EJECT lever
A
EJECT mode diagram
(3) LOADING START mode
This is the mode where the tape is wound around the winding
reel when a cassette with visible wind start leader tape is
loaded. (The brake shifter moves to the left, the S main brake
is separated from the S reel base and the Tu main brake is
separated from the Tu reel base.)
S reel base
S main brake
LOADING START mode diagram
Tu reel base
Tu main brake
Brake shifter
Screw lock: Three Bond :1401B
Cleaning liquid: Industrial-use ethyl alcohol
(2) STANDBY mode
The mechanism position to set the cassette where the slide
chassis is at the farthest position from the drum and the
EJECT lever is in counterclockwise rotated position (position
where the cassette controller assembly can be locked).
EJECT lever
Rotation
It is hardly seen since
Slide chassis
it is concealed with
slide chassis.
STANDBY mode diagram
(4) REWINDING (VSR) mode
The mechanism position to rewind the tape (fast rewinding
playback). The S and T pole base is pressed, the pinch roller
is pressed to the capstan shaft, the brake shifter VSR brake
section engages with the Tu reel base gear.
T pole base
S pole base
REWINDING (VSR) mode diagram
14
Capstan shaft
Pinch roller
VSR brake section
Tu reel base

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