JVC AV-20N83/BK, Руководство по обслуживанию

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10 No. 52076
AV-20N83
AV-21D83
REMOVING THE CRT
* Replacement of the CRT should be performed by 2 or more persons.
•
After removing the rear cover, chassis etc.,
1. Putting the CRT change table on soft cloth, the CRT change table
should also be covered with such soft cloth (shown in Fig. 2).
2. While keeping the surface of CRT down, mount the TV set on the
CRT change table balanced will as shown in Fig. 3.
3. Remove 4 screws marked by arrows with a box type screwdriver as
shown in Fig. 3.
•
Since the cabinet will drop when screws have been removed, be sure
to support the cabinet with hands.
4. After 4 screws have been removed, put the cabinet slowly on cloth
(At this time, be carefully so as not to damage the front surface of the
cabinet) shown in Fig. 4.
•
The CRT should be assembled according to the opposite sequence
of its dismounting steps.
* The CRT change table should preferably be smaller that the CRT sur-
face, and its height be about 35cm.
COATING OF SILICON GREASE FOR ELECTRICAL IN-
SULATION ON THE CRT ANODE CAP SECTION.
•
Subsequent to replacement of the CRT and HV transformer or repair
of the anode cap, etc. by dismounting them, be sure to coat silicon
grease for electrical insulation as shown in Fig. 5.
1. Wipe around the anode button with clean and dry cloth. (Fig. 5)
2. Coat silicon grease on the section around the anode button. At this
time, take care so that any silicon greases does not sticks to the
anode button. (Fig. 6)
夝
Silicon grease product No. KS - 650N
Fig. 2
CRT CHANGE TABLE
APPROX.
35cm
CLOTH
Fig. 3
CRT
BOX
TYPE
SCREW
DRIVER
CRT
CHANGE
TABLE
Fig. 4
CRT
CHANGE TABLE
CRT
CABINET
Fig. 5
Anode button
CRT
Silicon grease
coating
Fig. 6
Silicon grease
should be coated
by 5mm or more
from the outside
diameter of anode
cap.
Approx.
20mm (Do not
coat grease on
this section
Anode button
(No sticking of
silicon grease)
Anode cap
Coating position
of silicon grease