Panasonic PT-60LCX64-K, Service Manual, Page: 104 / 279

Gray Scale Pattern Signal (16 scales)
(A)
White
16th gray scale
Black
1st gray scale
Gray Scale Pattern Signal (10 scales)
(B)
White
10th gray scale
Black
1st gray scale
(Rough adjustment by video signal : Judged by eye)
1. Connect the NTSC Video Pattern Generator to the VIDEO
Input 1 Terminal.
2. Set to VIDEO 1 mode by pressing TV/VIDEO key on the
remote.
3. Supply Gray Scale Pattern Signal (10 scales).
4. Select "White Balance R-Level 100" or "White Balance B-
Level 100" on menu by 2( ), 8( ) key on the 10-key keyboard.
5. Adjust "White Balance R-Level 100" and "White Balance B-
Level 100" by pressing 4( ), 6( ) key on the 10- keyboard
so that the area around 9th and 10th scale (B) becomes
pure gray with no red or blue tint.
Fig. E8-2
Note:
Adjust it with viewing in scale(B) though, the white color
of whole screen changes.
WHITE BALANCE ADJUSTMENT
Note:
1. Be sure to perform the White Balance Adjustment
after turning on the power for more than 10 minutes so that
color temperature is stable.
2. This adjustment should be done in a darkroom.
Purpose:
To set the standard white level for each color temperature.
Symptom of Misadjustment:
The white color of picture will become bluish or reddish.
Test Pattern Signal:
·
Gray Scale Pattern Signal (16 scales): "1 White 16 grade
(Horiz)" in "Bar Reverse"
Rough Adjustment:
(Rough adjustment by PC signal : Judged by eye)
1. Connect the PC(2) to the RGB Input 1 Terminal with the
RGB Cable.
2. Set to RGB 1 mode by pressing TV/VIDEO key on the
remote.
3. Supply Gray Scale Pattern Signal (16 scales) from PC(2).
4. Select "White Balance R-Level 100" or "White Balance B-
Level 100" on menu by 2( ), 8( ) key on the 10-key keyboard.
5. Adjust "White Balance R-Level 100" and "White Balance B-
Level 100" by pressing 4( ), 6( ) key on the 10-key
keyboard so that the area around 14th and 16th scale (A)
becomes pure gray with no red or blue tint.
Fig. E8-1
Note:
Adjust it with viewing in scale(A) though, the white color
of whole screen changes.
TP
PC(1)/(2), Test Pattern Signal,
NTSC Video Pattern Generator
Refer to Description below
SPECIFICATION EQUIPMENT
ADJ. INPUT
or
(RGB Input 1 Terminal)
Gray Scale Pattern Signal (16 scales)
(VIDEO Input 1 Terminal)
Gray Scale Pattern Signal (10 scales)
White Balance
R-Level 100
White Balance
B-Level 100
PT-60LCX64-K
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