Hitachi C1421R/T Wartungshandbuch Seite 18

4. WHITE BALANCE
1) Set the TV to NOR | mode.
2) Set the R,G,B LEVEL to CENTER with R,G,B UP/DOWN KEY .
3) Adjust the R,G,B UP/DOWN KEY of the other colour which did not appear
on the screen to obtain WHITE.
5. FOCUS
1) Apply a RETMA PATTERN signal.
2) Adjust the FOCUS VOLUME on FBT to obtain optimal resolution.
6. GEOMETRY
6.1 VERTICAL CENTER
1) Set the TV to NOR | mode.
2) Pressing the V-SIZE UP/DOWN KEY, the
lower half of the screen is blanked. -
3) Adjust the border line of blanked picture
coincident with the mechanical center marks
of the CRT using the V-SIZE UP/DOWN KEY.
6.2 VERTICAL SIZE
* The VERTICAL CENTER adjustment
has to be done in advance.
1) Apply a RETMA PATTERN signal. xe bs
2) Set the TV to NOR | mode. a ee,
3) Adjust the upper part of the picture ae
with the V-SIZE UP/DOWN keys.
6.3 VERTICAL SLOPE
* The VERTICAL SIZE adjustment
has to be done in advance.
1) Apply a RETMA PATTERN signal.
2) Adjust the lower part of the picture
with the V-SLOPE UP/DOWN keys.
6.4 VERTICAL S-CORRECTION
1) Apply a CROSSHATCH PATTERN signal.
2) Adjust the S-COR UP/DOWN KEY to obtain
the same distance between horizontal lines.
6.5 HORIZONTAL CENTER
1) Apply a RETMA PATTERN signal.
2) Adjust picture centering with CENTER
LEFT/RIGHT keys.
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