Service manual

• East West Trapezium (EW. TRAP) Align straight vertical lines in the
middle of the screen.
• East West Upper Corner (EW. UCORN) [*] Align straight vertical lines in
the upper corners of the screen.
• East West Lower Corner (EW. LCORN) [*] Align straight vertical lines in
the lower corners of the screen.
[*] Note: Perform these alignments also in 480p and 1080i mode (AV4). Use a 1080i
pattern generator (e.g., Sencore VP300). When you leave the geometry menu, the
values are stored.
Use a kind of crosshatch pattern, in which you can recognize a vertical line, which is
placed on a horizontal amplitude of about 87% (as seen from the center of the CRT).
This line is used as a reference, to adjust the overscan situation in 1080i and 480p
mode on the edge of the phosphor.
Black cut off Alignment
You can adjust the values of the “black cut off” level in the WHITE TONE sub menu.
The color temperature mode (NORMAL, DELTA COOL, and DELTA WARM) or the
color (R, G, B) can be selected with the “UP/DOWN RIGHT/LEFT” cursor keys. Change
the value with the “RIGHT/LEFT” cursor keys.
First, select the values for the NORMAL color temperature. Then select the (offset)
values for the DELTA COOL and DELTA WARM mode. The alignment values are non-
linear:
• +1 to +63 represent a positive offset (63 is the maximum positive offset).
• -63 to -1 represent a negative offset (-63 is the minimum negative offset).