Sony TAV-L1 Service Manual page 45

4. WHITE BALANCE ADJUSTMENT
Equipment Needed:
Use the following measuring equipment for the white balance
adjustment.
• Video generator (Leader LT 408 with NTSC set-up or
equivalent)
To set the 60IRE and 20IRE NTSC signals.
• Color calibration (Minolta CA-210 or equivalent)
To read the white balance targets.
Procedure:
1. Set the service mode.
2. Press the [VIDEO 1] button on the remote commander to select
the "VIDEO 1"
3. Input the 60IRE NTSC all gray signal from the video generator
to VIDEO IN 1 jack.
4. Press the [MENU] button on the remote commander to display
the user menu.
5. Set the "Picture Mode" to the "Pro".
6. Set the "Color" to the "Min".
7. Set the "Color Temp" to the "Cool".
8. Set the "Backlight" to the "Max".
9. Press the [MENU] button on the remote commander to display
the service menu.
10. Select the "W/B".
11. Adjust the "R_DRIVE" and "B_DRIVE" to meet the highlight
specified using the following specification tables.
12. Set the "COLOR SAVE" to the "Save".
13. Input the 20IRE NTSC all gray signal from the video generator
to VIDEO IN 1 jack.
14. Adjust the "R_BKG" and "B_BKG" to meet the background
specified using the following specification tables.
15. Set the "COLOR SAVE" to the "Save".
16. Press the [MENU] button on the remote commander to display
the user menu.
17. Repeat steps 7 through 16 for "Neutral" and "Warm".
Specification Tables:
MODE x
0.2759 0.2785
Cool
0.2772 0.2809
0.2850 0.2880
Neutral
0.2869 0.2913
0.2963 0.3054
Warm
0.2974 0.3034
TAV-L1
y Spec Input
3JND 60IRE
3JND 20IRE
3JND 60IRE
3JND 20IRE
3JND 60IRE
3JND 20IRE
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