Sony FWD-40LX1 Service Manual page 38

5. AD calibration adjustment of component input
signal
For the component input signal of an INPUT2 terminal,
two types of signal paths are provided in consideration of
the two-screen display. In one signal path, a signal is
passed through CCP2. In the other signal path, a signal is
directly passed through a scaler. The AD adjustment at
that time is performed using CCP2 and a scaler.
Therefore, the two types of signal paths must be adjusted.
For the component input signal of OPTION1 and
OPTION2, only one type of path in which a signal is
passed through CCP2 is provided.
(1) Automatic adjustment (CCP2)
Component adjustment of INPUT2 terminal
1. Select the component signal of INPUT2 by input
switching.
2. Input a 75% color-bar signal to the component input
signal, selected in step 1, in a 720/60P format and
display the screen.
3. 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 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
4. Select "AD Calibration", "NTSC/PAL", and then
"Component Cal." in a service mode menu.
5. 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".
6. 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.
2-12
7. 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.
Component adjustment of OPTION1 slot
8. Confirm that BKM-FW11 is installed in an OPTION1
slot.
9. Select the component signal of OPTION1 by input
switching.
10. Input a 75% color-bar signal to the component input
signal, selected in step 9, in a 720/60P format and
display the screen.
11. Execute steps 3 to 7.
Component adjustment of OPTION2 slot
12. Confirm that BKM-FW11 is installed in an OPTION2
slot.
13. Select the component signal of OPTION2 by input
switching.
14. Input a 75% color-bar signal to the component input
signal, selected in step 13, in a 720/60P format and
display the screen.
15. Execute steps 3 to 7.
16. After adjustment is completed, return the setting value
of "Adjust Picture" to the former value (value written
down in steps 3, 11, and 15) and exit the menu
(2) Manual adjustment (CCP2)
Component adjustment of INPUT2 terminal
1. Select the component signal of INPUT2 by input
switching.
2. Input a 75% color-bar signal to the component input
signal, selected in step 1, in a 720/60P format and
display the screen.
FWD-40LX1