Panasonic TX-51P100X Service Manual page 22

White Balance Adjustment (MARKET MODE CHK6)
Preparation
PICTURE MENU : DYNAMIC
C.TEMP : STANDAR
AI : OFF
P-NR : WEAK
COLOR : 32
1. Receive a window pattern.
2. Align the High Light, Mod Light, and Low Light show below by using colour meter.
Luminance
Adj.
(cd/m
Hi 200
Mid 50
Low 5
Blue Limit Adjustment (MARKET MODE CHK6)
Preparation
1. Receive a window pattern.
2. Connect an oscilloscope to TPLB4(LB-BOARD).
3. Set the TV to MARKET MODE [CHK6 mode].
4. Adjust Blue Limit Control.
A=30 1V
±
Blue Focus / Gamma Adjustment
Preparation
PICTURE MENU: DYNAMIC CONTRAST MAX(63)
C.TEMP : STANDARD
B-G-ST1 : 170
AI : OFF
P-NR : WEAK
COLOR : 32
1. Receive a window pattern.
2. Cover the Green, Red CRT lens, projecting Blue only.
3. Set the White Balance meter in center area of screen.
4. Adjust blue focus VR until brightness, Y, is minimum.
5. Turn blue focus VR clockwise until the measurement is Y + 20 ± 1 cd/m
6. Set B-G GAIN (CHK6) to Original Data.
7. Set SUB CONTRAST (CHK2) to Original Data.
8. Set B-GAIN (CHK6) to Original Data.
9. Set the White Balance meter in center area of screen.
10. Adjust blue focus VR so that Y is 50 cd/m
11. Adjust B-GAIN (CHK6) so that B/G(y) is 0.263.
12. Adjust B-G ST1 (CHK6) so that B/G is more than 103% (y is less than 0.2**).
R
2
)
R GAIN B-G GAIN
— B GAIN
R CUT OFF B CUT OFF
2
.
B X
0.257±0.005
—
0.259±0.005
A=30±1V
- 22 -
Colour
Y
Temp
0.269±0.005 17500±500k
0.263±0.005 —
0.264±0.005 16500±500k
H
MARKET MODE CHK2,6
B-G GAIN (CHK6)
SUB CONTRAST (CHK2) : MAX
B-GAIN (CHK6)
2
.
MPCD
+5±5
—
+15±5
GND
: MAX
: MAX