Panasonic BT-M2090Y Service Manual page 40

BT-M2090Y
Item Test equipment Test points
Adjustment
Adjustment procedure
locations
Color Signal generator W07 (R CUTOFF) 1. Supply a resolution pattern input.
temperature (Resolution W09 (B CUTOFF) 2. Set the menu Color Temp. to 6500.
(6500 K) pattern, W10(R DRIVE) 3. Set the Color Off switch to off.
color bar) W11 4. Set WO? to 25, W09 to 11, and W08 to 25.
Color analyzer or (G DRIVE) 5. Set w11 to 32.
color temperature
W12(B DRIVE) 6. Adjust W10 and W12 for the specified color
meter [SERVICE MENU]
temperature (reference: W10
=
28, W12
=
21)
(X
=
0.313, Y
=
0.329)
7. Supply a color bar input (black and white).
8. Check for proper white balance tracking. If
deviated in the dark components, adjust with
WO? and W09.
9. Return the menu Color Temp. to original setting.
•
Adjustment with color temperature meter:
Apply the sensor to the CRT, adjust and
measure. If deviated, repeatedly adjust and
measure to obtain the specified color
temperature.
Bright Signal generator S01 (BRIGHT) 1. Adjust s01 to where the split color 0 % black
(Split color bar) [SERVICE MENU]
component faintly brightens.
2. Supply another signal and confirm absence of
black deviation.
On screen Signal generator NTSC SETUP 1. Press the MENU button to display the menu
menu
(color bar)
COMPO. LEVEL screen.
COLOR TEMP. 2. Set the NTSC SETUP item to 7.5.
[Menu screen] 3. Set the COMPO. LEVEL item to BETA75.
4. set the COLOR TEMP. item to 6500.
5. Again press the MENU button to release the
menu screen.
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