Hitachi 32UX01S, Service Manual

Page: 41 / 92

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1.0 Deflection circuit picture adjustment
1-1 Horizontal center adjustment
Adjustment Preparation
(1) Apply heat-run 5 min or more after the power is
turned on.
(2) Receive circle pattern signal.
(3) Set CONTRAST max. and others center.
(Adjustment code P08)
Adjustment Preparation
(1) Adjust horizontal center so that difference of right
and left size marker is within 0.5 by changing
data.
(Adjustment code P08)
1-2 Vertical size adjustment
Adjustment Preparation
(1) Apply heat-run 5 min. or more after the power is
turned on.
(2) Receive circle pattern signal, and set
CONTRAST max. and others center.
(3) The set should be facing North or South.
(4) Set to adjustment code as follows.
Adjustment Procedure
(1) Adjust vertical center and size so that the outer
circle of the circle pattern is like the figure below,
by changing data.
(i) Standard Condition
Center Inner Circle to the Screen.
Adjustment mode Adjustment Code
Vertical Position adjustment P10
Vertical Size adjustment P11
(ii) When the picture center is above CRT center
at V center is min.
When the picture center is above CRT center,
adjust so that the bottom of the outer circle
comes in contact with the bottom of the screen.
1-3 Side pin distortion adjustment
Adjustment Preparation
(1) Receive Crosshatch signal and set CONTRAST
to max.
Adjustment Procedure
(1) Set adjustment code as follows.
(2) Adjust data so that the line of the right and left
are straight.
spec. D
L
, D
R
²5mm (For 32V)
spec. D
L
, D
R
²7mm (For 36V)
P12
P16
Adjustment mode Adjustment Code
E/W PARABOLA adjustment P12
E/W CORNER adjustment P16