Werbung
Verfügbare Sprachen
Verfügbare Sprachen
1-6-9. Cylinder Assembly Inspection and
Replacement
<Inspection>
1. Check if the tape transport surface on the lower
cylinder assembly are not damaged.
2. Check if the rotation of the upper cylinder assembly is
not abnormal.
When any abnormality is found according to the inspec-
tion procedures described above 1 and 2. replace the
cylinder assembly.
<Replacement>
1. Remove the slip ring assembly. (Refer to item "1-6-
13. Slip Ring Assembly Replacement".)
. Remove the head cleaner. (Refer to item "1-6-14.
Head Cleaner Replacement.")
3. Remove the FPC (1) on the rotary transformer.
. Remove three screws (2) and the cylinder holding
plate (3) and (4). (Refer to item "1-6-12. Cylinder
Holding Plate Replacement".)
5. Remove the cylinder assembly (5).
6. Remount the cylinder assembly (5) in the reverse
order of removal. Fix the cylinder pressing slightly in
the direction shown by the arrow A and the cylinder
holding plate (3) pressing slightly in the direction
shown by the arrow (B). (Tightening torque: 294 —
392 mNem (3 ~ 4 kgecm))
Slip ring assembly
Head cleaner
a
Screw (2)
Cylinder
holding plate >
Cylinder
holding plate (3)
2-14
Note:
4. 1)
+ When replacing, take much care not to touch the video
head directly and damage the cylinder.
Screws (1)
7. Perform the tape transport adjustment.
Hook the FPC with two portions
J
Cylinder
wore abana
xX
Insert under
the bent tip.
Ring (5)
FPC (1)
Rib
Upper cylinder
assembly (2)
Joint spring
plate (3)
Fig. 6-9-2
1-6-10. Upper Cylinder Assembly & Pre Amplifier
Inspection and Replacement
<Inspection>
1. Check if the video heads are damaged or worn out.
2. Check the video heads for clogging. (In case that the
1. Remove the slip ring assembly. (Refer to item "1-6-
2. Remove two securing screws (1) and remove the
upper cylinder assembly (2).
Fig. 6-10-1
3. Remove four securing screws (3) and remove the pre
2)
amplifier assembly (4) and the ring (5).
If any abnormality is found on the pre-amplifier (4),
replace the pre-amplifier (4).
After desoldering, remove the ring (5) and mount the
pre-amplifier (4) to the upper cylinder sub assembly
(6). Solder the pre-amplifier (4) after fixing with four
screws (3).
(Tightening torque: 392 - 441 mNem (4 ~ 4.5 kgecm))
2-15
Note:
Adjust each phase of the head (8), rib and marking & on
the upper cylinder sub assembly (6), ring (5) and the pre
amplifier (4).
Marking
Pre amplifier (4)
|
Rib
This head is not
|
always applied
Ring (5)
to all models.
Head (8)
PC board color:
yellow
PC board color:
Upper cylinder
4 sub assembly (6)
PC board color:
yellow
PC board color:
green
Cylinder top side
Fig. 6-10-2
Clean the upper cylinder sub assembly (6) and the
mounting surface of the flange (7) with a cleaning kit.
. Mount the upper cylinder assembly (2) so that the rib
of the upper cylinder (2) (ring (5)) matches with
groove (A) on the flange (7), then fix them with two
screws (1). (Tightening torque: 294 - 392 mNem (3 -
4 kgecm))
Note:
Werbung
