Hitachi CM615ET, Руководство по обслуживанию

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. DISPLAY ALIGNMENT
A. Times & Display Size
For all presetting mode listing in section 2.4 shall be within the limitation:
H. WIDTH 306 ± 4 mm
V. HEIGHT 230 ± 4 mm
The external control range of the data area, shall be as follows;
Max. horizontal size : overscan the screen
Min. horizontal size :
≤
285mm
Max. vertical size : over the screen
Min. vertical size :
≤
202 mm
B. Picture Position
For all presetting mode listing in section 2.4 shall be within the limitation:
H.PHASE SCREEN CENTER ± 3 mm
V.CENTER SCREEN CENTER ± 3 mm
The external control ranges of display for all modes listed in section 2.4
H.POSITION
≥
50 mm
V.CENTER
≥
25 mm
C. Linearity
The CONTRAST and BRIGHTNESS control shall be properly adjusted at 20 F-L with Full-intensity
reverse pattern, then change to crosshatch Pattern 12x10 (Hx V), the size of grid of crosshatch pattern in
every display mode shall not vary than 10%.If two line is next to each other, 5% if they are not next to
each other. The calculation formula was listed below:
H max - H min V max V min
x100% or x 100%
(
H max + H min) / 2 ( V max + V min) / 2