Hitachi 32UX01S, Service Manual, Page: 40 / 92

40
1-5 Dynamic Convergence adjustment
(Except ITC CPT type)
(1) Insert an adjustment wedge (temporary)
between the top of DY opening and CPT funnel
as shown in Figure 1-5-1. By inserting the wedge
gradually, match the red and blue vertical lines at
the top and bottom of the screen and also match
the red and blue horizontal lines of both sides of
the screen as shown in Fig. 1-5-2(a).
(2) Adjust by swinging in the right/left directions of
DY while observing 6 and 12 horizontal lines of
the screen and match the red and blue horizon-
tal lines. As shown in Fig. 1-5-2(b), when the
blue is outside from the red on CPT screen,
insert the DY fixing wedge between the right-side
DY viewed from the rear of CPT and CPT funnel.
(3) As shown in Fig. 1-5-2(c), when the blue is
inside from the red on CPT screen, insert the
wedge between the left-side DY and CPT funnel.
(4) Insert two DY fixing wedge with approximately
120˚ to the fixing wedge inserted in item (2) or
(3) and remove the adjustment wedge (tempo-
rary). Use the DY fixing wedge after peeling off
the tape. After proper location, press and adhere
it to the funnel.
Adjustment Wedge
(b)
R
R
B R
B
B
R
(c)
B
B
R
R
(a)
NO.
MODEL
CPT
CONDITION
Focus VR setting position
1
36UX01S
2 36GX01B
A90AHH50X01
(TOSHIBA)
A90LPY30X
(HED-US)
• Receive the cross-hatch
signal
• Contrast control: Maximum
• Sharpness control: Center
• Brightness control: Where the
background is set
• Same as above
Turn the Focus VR gradually clockwise from the full
counterclockwise position.
Then set it to the point where the focus of 5th vertical line
from the screen center becomes best.
Turn the Focus VR gradually clockwise from the full
counterclockwise position.
Then set it to the point where the focus of 7th horizontal line
from the screen center becomes best.
3
32UX01S
32GX01B
A80LJF30X (W)
(HED-US)
Turn the Focus VR gradually clockwise from the full
counterclockwise position.
Then set it to the point where the focus of 6th horizontal line
from the screen center becomes best.
• Receive the cross-hatch
signal
• Contrast control: Maximum
• Sharpness control: Center
• Brightness control: Where the
background is set
2. FOCUS ADJUSTMENT
+
+ +
6th
2nd
6th
0
(Center)
FIGURE 1-5-1
FIGURE 1-5-2