Sony FWD-40LX1 Service Manual page 34

2. AD calibration adjustment of S_VIDEO input
signal (NTSC signal)
(1) Automatic adjustment
S_VIDEO adjustment of OPTION1 slot
1. Confirm that BKM-FW10 is installed in an OPTION1
slot.
2. Select the S_VIDEO signal of OPTION1 by input
switching.
3. Input a 75% color-bar signal to the S_VIDEO input
signal, selected in step 2, in an NTSC format and
display the screen.
4. Start the service mode, select "Picture Mode" and then
"User1" by "Adjust Picture", and set the values below.
n
After adjustment is completed, write down the setting
value before change so as to return the setting value of
"User1" to the former value.
Chroma: 50
Phase: 50
Noise Reduct.: Off
Dynamic Picture: Off
Color Correct: Off
Gamma Correct: Mid
5. Select "AD Calibration", "NTSC/PAL", "Y/C Cal.",
and then "Composite Cal." in a service mode menu.
6. Set an arbitrary target value by "Target Y Cont." and
"Target Color".
n
During factory setting, "Target Y Cont." and "Target
Color" are adjusted by "2700".
7. Select "Auto Cal." and press the [OK] key.
Automatic adjustment is started.
During adjustment, after the display becomes black &
white, it is colored again and the adjustment is
completed about ten seconds later.
8. Select "AD Service Save" in the hierarchy of "AD
Calibration" and press the [OK] key.
The adjustment value is saved.
n
Save an adjustment value here. Notice that the
adjustment value is not saved even if adjustment is
completed.
2-8
S_VIDEO adjustment of OPTION2
9. Install BKM-FW10 in an OPTION2 slot.
10. Select the S_VIDEO signal of OPTION2 by input
switching.
11. Input a 75% color-bar signal to the S_VIDEO input
signal, selected in step 10, in an NTSC format and
display the screen.
12. Execute steps 4 to 8.
13. After adjustment is completed, return the setting value
of "Adjust Picture" to the former value (value written
down in steps 4 and 12) and exit the menu.
(2) Manual adjustment
S_VIDEO adjustment of OPTION1 slot
1. Confirm that BKM-FW10 is installed in an OPTION1
slot.
2. Select the S_VIDEO signal of OPTION1 by input
switching.
3. Input a 75% color-bar signal to the S_VIDEO input
signal, selected in step 2, in an NTSC format and
display the screen.
4. Start the service mode, select "Picture Mode" and then
"User1" by "Adjust Picture", and set the items below.
n
After adjustment is completed, write down the setting
value before change so as t return the setting value of
"User1" to the former value.
Chroma: 50
Phase: 50
Noise Reduct.: Off
Dynamic Picture: Off
Color Correct: Off
Gamma Correct: Mid
5. Select "AD Calibration", "NTSC/PAL", "Y/C Cal.",
and then "Manual Control" in a service mode menu.
6. Select "Adjust Y Contrast". (Adjust the contrast.)
7. Move a slider and adjust so that the "R", "G", and "B"
values displayed on the right of the slider are nearer
"2700" as far as possible.
8. Select "Adjust C Level". (Adjust the color.)
FWD-40LX1