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33
DV-NC65H/S
DV-NC70H
DV-NC70H
AC Head
FFC
Holder
FFC
Holder
Figure 8-23.
• Replacement
1. Solder the removed PWB to the new head assembly.
2. Adjust the height from the A/C head plate (lower surface)
1. Solder the removed PWB to the new head assembly.
2. Adjust the height from the A/C head plate (lower surface)
to the A/C head base to 10.8mm with slide calipers. (3
places of azimuth screw section, tilt screw section and A/
C head front section) (See the figure below.)
places of azimuth screw section, tilt screw section and A/
C head front section) (See the figure below.)
8-17. REPLACEMENT OF A/C HEAD
1. In eject position unplug the power cord.
• Removal
1. Take out FFC holder from main chassis.
1. Take out FFC holder from main chassis.
(Push 3 hooking point and pull-up the
holder).
holder).
2. Remove the screws 123, Tilt screw.
3. Unsolder the PWB fitted to the A/C head.
3. Unsolder the PWB fitted to the A/C head.
Notes:
1. When replacing, never touch the head. If you touched,
1. When replacing, never touch the head. If you touched,
clean with the cleaning liquid.
2. When removing the screw 3, take care so that the
spring may out.
Figure 8-22.
3
1
2
A/C head screw
Azimuth spring
Height adj. screw
A/C head base
(with A/E)
(with A/E)
Tilt screw
Height Adj. spring
A/C head PWB
Azimuth adj. screw
*Direction designation.
(The bottom part is big.)
(The bottom part is big.)
A/C head plate
10.8mm
A/C head FFC
A/C FFC holder
Solder
A/C head PWB
New A/C head ass'y
A/C head base
*Fit the groove of FFC to
the boss of the holder.
the boss of the holder.
A/C head base
A/C head plate
3. Align the left end of gear of A/C head plate with the
punched mark of chassis, tentatively tighten the screws
1 so as to ensure smooth motion of A/C head plate.
Tentative tightening torque must be 0.45
1 so as to ensure smooth motion of A/C head plate.
Tentative tightening torque must be 0.45
± 0.05N·m (4.5
± 0.5kgf·cm) and final tightening torque must be 0.6N·m
(6kgf·cm).
(6kgf·cm).
Figure 8-24.
Notes:
1. If the screw 1 is tighten tentatively too loose, the
1. If the screw 1 is tighten tentatively too loose, the
azimuth and height of A/C head may change when they
are finally tightened. Therefore care must be taken.
are finally tightened. Therefore care must be taken.
2. After completion of A/C head be sure to adjust tape
running. (Execute the running adjustment by the method
described in 8-19.)
described in 8-19.)
Height screw
Left end of A/C head plate gear
Punched line mark on chassis
Punched line mark on chassis
1
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