Adjustments; Adjustment Of Signal Level; Check Ad Calibration Registration Items; Y Signal Ad Calibration Of Tv/Video Input - Sony KLV-21SR2 Service Manual

< PREPARATIONS >
1. Aging
• Input no signal and set the monitor to aging mode.
• Aging Setting
MON_CON_REG_2 = 217
2. Aging condition
Power supply : 220-240 V (50/60Hz)
Time : More than 10 minutes
Temperature : 22ºC to 28ºC
Luminance : On aging mode setting
Note:
When the power is cycled between aging and W/B adjustment,
perform the aging in 30sec or more before the W/B
adjustment.

2-1. Adjustment of signal level.

2-1-1. Check AD calibration registration items.

1. Check that follows items are default .
<Check registration items>
TARGET_PW_IN_Y
ADJ_Y_DEADBAND
ADJ_Y_LOOPATTEN
TARGET_PW_IN_C
ADJ_C_DEADBAND
ADJ_C_LOOPATTEN
AD_ADJ_TIME_OUT
AD_COLOR_OFFSET_TV
AD_COLOR_OFFSET_V
AD_COLOR_OFFSET_S
AD_COLOR_OFFSET_D1
AD_COLOR_OFFSET_D2
AD_COLOR_OFFSET_D3
AD_COLOR_OFFSET_D4
2-1-2. Y signal AD calibration of TV/VIDEO
input.
1. Check "CO_CTRL" = 0
2. Set data as follows.
<Setting data>
COLOR 25
DYNA_PICT 0 (OFF)
DC_TRAN 0 (OFF)
3. Input 7.5 IRE black full field with burst in video 1 input .
4. Send "READ_PW_INPUT_Y" command from ECS.
5. Check thgat the detection value of "PW_INPUT_Y" is within
the standard of the following column.
<Video(composit) input detection value average on 0.75
IRE black full field>
Item
PW_INPUT_Y
SECTION 2

ADJUSTMENTS

Standard
±
11 3
6. Input 100 IRE white full field with burst.
7. 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 TV and S video range.
8. Check that the detection value of "PW_INPUT_Y" is within
the standard of the following column.
<Video(composit) input detection value average on 100
IRE white full field>
Item
PW_INPUT_Y
2-1-3. C signal AD calibration of TV/VIDEO
input.
1. Check "MON_CON_REG 1" = 3
2. Set data as follows.
<Setting data>
COLOR 25
DYNA_PICT 0 (OFF)
DC_TRAN 0 (OFF)
3. Input 0 IRE black full field with burst in video input .
4. Send "READ_PW_INPUT_CB" command from ECS.
5. Check thgat the detection value of "PW_INPUT_CB" is
within the standard of the following column.
<Video(composit) input detection value average on 0
IRE black full field>
Item
PW_INPUT_CB
6. Input blue full field with burst.
7. Send "ADJUST_C_LEVEL_VIDEO" command from ECS.
The C_LEVEL_CCP2_05 registration of the video range is
adjusted automatic by this command.
The value that increased and redused offset data is copied in
the TV and S video range.
8. Check that the detection value of "PW_INPUT_CB" is within
the standard of the following column.
<Video(composit) input standard value on blue full field>
Item
PW_INPUT_CB
9. Input red full field with burst.
10. Send "READ_PW_INPUT_CR" command from ECS.
11. Check that the detection value of "PW_INPUT_CR" is within
the standard of the following column.
<Video(composit) input standard value on red full field>
Item
PW_INPUT_CR
Standard
±
195 2
Standard
±
128 5
Standard
±
230 2
Standard
±
230 3
KLV-21SR2 (UC) 2-1