KE-MV42A1, KE-MV42M1 - Sony TV Service Manual (repair manual). Page 11

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KE-MV42A1/MV42M1 (E)     2-2
2-2-5. Y signal  AD calibration of CCP2 decode
1.
Check “TIMING_INDEX” = 5. (AV_CVBS_PAL_CCP2)
2.
Input 0 IRE black full field with burst.
3.
1) SET “THROUGH” =1.
2) Send “READ_PW_INPUT_Y” command from ECS.
3) SET “THROUGH” =0.
4.
Check that the detection value of “PW_INPUT_Y” is
within the standard of following column.
Item
Standard
PW_INPUT_Y
Less than 304
5.
Input 100 IRE white full field with burst.
6.
Send “ADJUST_Y_LEVEL_VIDEO” command from ECS.
The Y_LEVEL_CCP2_04 registration of the video range is
adjusted automatic by this command.
Adjustment value also is copied in the proper NVM area.
7.
Check that the detection value of “PW_INPUT_Y” is within
the standard of following column.
Item
Standard
PW_INPUT_Y
3736 
±
 16
2-2-6. C signal  AD calibration of CCP2 decode
1.
Check “TIMING_INDEX” = 5. (AV_CVBS_PAL_CCP2)
2.
Input 0 IRE black full field with burst.
3.
1) SET “THROUGH” =1.
2) Send “READ_PW_INPUT_CB” command from ECS.
3) SET “THROUGH” =0.
4.
Check that the detection value of “PW_INPUT_CB”  is
within the standard of following column.
Item
Standard
PW_INPUT_CB
Less than 304
5.
Input blue full field with burst.
6.
Send “ADJUST_C_LEVEL_VIDEO” command from ECS.
The C_LEVEL_CCP2_05 registration of the video range is
adjusted automatic by this command.
Adjustment value also is copied in the proper NVM area.
7.
Check that the detection value of “PW_INPUT_CB” is
within standard of following column.
Item
Standard
PW_INPUT_CB
3276 
±
 16
8.
Input red full field with burst.
9.
Send “READ_PW_INPUT_CR” command from ECS.
10. Check that the detection value of “PW_INPUT_CR” is
within standard of following column.
Item
Standard
PW_INPUT_CR
2782 
±
 320
2-2-7. Check AD (Component case) calibration
registration items
1.
Select COMPONENT 1 IN and input 575i signal.
2.
Set following items.
Item
Data
PICTURE_MODE
0 (Live)
COLOR
25
DYNA_PICT
 0 (Off)
DC_TRAN
0 (Off)
COLOR_OFFSET
130
BL_PGAMMA
0 (Off)
3.
Set the following values.
TARGET_PW_IN_Y
:
3632
ADJ_Y_DEADBAND
:
16
ADJ_Y_LOOPATTEN
:
32
TARGET_PW_IN_C
:
3780
ADJ_C_ DEADBAND
:
16
ADJ_C_ LOOPATTEN
:
32
AD_ADJ_TIME_OUT
:
100
2-2-8. Y signal  AD calibration of component input
1.
Check “TIMING_INDEX” = 24. (Component 1576i)
2.
Input 0 IRE black full field with burst.
3.
Send “READ_PW_INPUT_Y” command from ECS.
4.
Check that the detection value of “PW_INPUT_Y” is within
the standard of following column.
Item
Standard
PW_INPUT_Y
Less than 304
5.
Input 100 IRE white full field with burst.
6.
Send “ADJUST_Y_LEVEL_VIDEO” command from ECS.
The Y_LEVEL_CCP2_04 registration of the video range is
adjusted automatic by this command.
Adjustment value also is copied in the proper NVM area.
7.
Check that the detection value of “PW_INPUT_Y” is within
the standard of following column.
Item
Standard
PW_INPUT_Y
3632 
±
 16
2-2-9. C signal  AD calibration of componet input
1.
Check “TIMING_INDEX” = 24. (Component 1576i)
2.
Input 0 IRE black full field with burst.
3.
1) SET “THROUGH” =1.
2) Send “READ_PW_INPUT_CB” command from ECS.
3) SET “THROUGH” =0.
4.
Check that the detection value of “PW_INPUT_CB” is
within the standard of following column.
Item
Standard
PW_INPUT_CB
Less than 304
5.
Input blue full field with burst.
6.
Send “ADJUST_C_LEVEL_VIDEO” command from ECS.
The C_LEVEL_CCP2_05 registration of the video range is
adjusted automatic by this command.
Adjustment value also is copied in the proper NVM area.
7.
Check that the detection value of “PW_INPUT_CB” is
within standard of following column.
Item
Standard
PW_INPUT_CB
3780 
±
 16
8.
Input red full field with burst.
9.
Send “READ_PW_INPUT_CR” command from ECS.
10. Check that the detection value of “PW_INPUT_CR” is
within standard of following column.
Item
Standard
PW_INPUT_CR
3064 
±
 320
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