Hitachi 32UX01S, Service Manual

Page: 39 / 92

39
the right figure) between the luminous parts and
black matrix. Or, each color beam shines on the
phosphor of not applied color.
(13) To improve the miss landing mentioned above,
it’s acceptable to stick the permanent magnets to
CPT funnel (Figures 1-3-7 and 1-3-8).
Usage
Apply a silicone rubber KE-40 WRTV to the per-
manent magnet shown in the Figure, adhere it to
the CPT funnel and then fix it with permaseal
tape P212.
(14) Final purity criteria should satisfy the miss
landing criteria.
(15) When delivering the sets, set CPT axis direction
magnetic field to 0 Gauss and degauss it from
outside.
Luminous Parts
B
Phosphor
G
R
Black Matrix
(Viewed as black)
FIGURE 1-3-6 Enlarged view of screen with microscope
Ø12
N
S
1~3
3~4
6~8
N
S
8~12
FIGURE 1-3-7
Permanent Magnet
Silicone Rubber
KE-40 WRTV
Permaseal Tape(P212)
Width 15-20mm
Length 40-50mm
4 Permanent magnets are
usable at most.
S
N
Table 3
Artificial magnetic field setting list classified by destination.
Notes for pre-heat
Before pre-heating, stick DY to CPT funnel and fix it
so that the raster is perfect.
1-4 Static Convergence Adjustment
(Screen center part) (Except ITC CPT)
(1) Receive a cross-hatch signal and set Brightness
to the center and Contrast to minimum.
FIGURE 1-4-1
(2) Open the knobs of 4-pole magnet (2 sheets)
(Figure 1-4-1(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 1-4-1(c)) and match the blue/red horizon-
tal lines as shown in Figure 1-4-2(b).
FIGURE 1-4-2
DESTINATION
USA
CANADA
UNIVERSAL
PANAMA, HAWAII
0.45 G
0.54 G
0.35 G
0.2 G
0.22 G 0.3 G
0.15 G
0.3 G
0.3 G
0.37 G
TAIWAN
Vertical
Field
Horizontal
Field
Raster Wane
Raster
If the raster is
imperfect like the
left figure, CPT
neck is in danger of
cracking because
the beam may hit it.
DY Side
Purity
4-Pole6-Pole
Base Side
(a) CF Magnet (b) Open the knobs
of the magnet
(c) Turn the magnet
with its knobs open
2-Pole
B
G
R
G
R/B
(a)
R/B G
G
R/B
(b)
FIGURE 1-3-8
FIGURE 1-3-7