Hitachi 36UX52B\CZ77 Service Manual page 30

M7LXU
the right figure) between the luminous parts and
black matrix. Or, each color beam shines on the
phosphor of not applied color.
Luminous Parts
-1%
B
Phosphor
Bl&Mat&
(Viewed as black)
FIGURE l-3-6 Entarged view of screen with microscope
(13) To improve the miss landing mentioned above,
it's acceptable to stick the permanent magnet to
CPT funnel (Figures l-3-7 and l-3-8).
Usaae
Apply a silicone rubber KE-40 WRTV to the perma-
nent magnet shown in the Figure, adhere it to the
CPT funnel and then fix it with permasel tape P212.
FIGURE 1-3-7
I
34
6-8
N
t
-a-12- q
4 Permanent magnets are
useable at most.
(14) Final purity criteria should satisfy the miss land-
ing criteria.
(15) When delivering the sets, set CPT axis direction
magnetic field to 0 Gauss and degauss it from
outside.
Table 3
Artificial magnetic field setting list classified by destination.
1 TAIWAN
1 0.22 G 1
0.37 G ]
Notes for pre-heat
Before pre-heating, stick DY to CPT funnel and fix it
so that the raster is perfect.
7 Raster Wane ~
I
d
Raster
l-4 Static Convergence Adjustment
If the raster is
imperfect like the
left figure, CPT
neck is in danger of
cracking because
the beam may hit it.
(Screen center part) (Except ITC CPT)
(1) Receive a cross-hatch signal and set Brightness
to the center and Contrast to minimum.
DY Side
(a) CF Magnet
Base Side
(b) Open the knobs
of the magnet
FIGURE 1-4-1
(c) Turn the magnet
with its knobs open
(2) Open the knobs of 4-pole magnet (2 sheets)
(Figure 1-4-l(b)) and match the blue/red vertical
lines at the center of the screen as shown in
Figure 1-4-2(a).
(3) Turn the 4-pole magnet with its knobs open
(Figure 1-4-l(c)) and match the blue/red horizon-
tal lines as shown in Figure 1-4-2(b).
FIGURE l-4-2
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