Sony KLV-26HG2 (serv.man2) Service Manual ▷ View online
KLV-26HG2 (AEP) 1-5E
1-9. H2 BOARD REMOVAL
1-10. H3 BOARD REMOVAL
3
H2 board
1
Four screws
(+BVTP 3x10)
2
Two screws
(+BVTP 3x8)
2
H3 board
1
Two screws
(+BVWHTP 3x12)
KLV-26HG2 (AEP) 2-1
SECTION 2
ADJUSTMENTS
< PREPARATIONS >
1. Aging
• Input no signal and set the monitor to aging mode.
• Aging Setting
MON_CON_REG_2 = 152
2. Aging condition
Power supply : 220-240V AC, 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 .
2-1-2. Y signal AD calibration of TV/VIDEO
input.
1. Check “CO_CTRL” = 0
2. Set data as follows.
3. Input 0 IRE black full field with burst in video 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.
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.
2-1-3. C signal AD calibration of TV/VIDEO
input.
1. Check “MON_CON_REG 1” = 3
2. Set data as follows.
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.
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.
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.
<Setting data>
COLOR
25
DYNA_PICT
0 (OFF)
DC_TRAN
0 (OFF)
<Setting data>
COLOR
25
DYNA_PICT
0 (OFF)
DC_TRAN
0 (OFF)
<Video(composit) input standard value on blue full field>
Item
Standard
PW_INPUT_CB
225
±
2
<Video(composit) input detection value average on 0 IRE
black full field>
black full field>
Item
Standard
PW_INPUT_Y
14
±
3
<Video(composit) input detection value average on 100
IRE white full field>
Item
Standard
PW_INPUT_Y
200
±
2
<Video(composit) input detection value average on 0
IRE black full field>
IRE black full field>
Item
Standard
PW_INPUT_CB
128
±
5
<Video(composit) input standard value on red full field>
Item
Standard
PW_INPUT_CR
225
±
3
<Check registration items>
TARGET_PW_IN_Y
: Initial value
ADJ_Y_DEADBAND
: Initial value
ADJ_Y_LOOPATTEN
: Initial value
TARGET_PW_IN_C
: Initial value
ADJ_C_DEADBAND
: Initial value
ADJ_C_LOOPATTEN
: Initial value
AD_ADJ_TIME_OUT
: Initial value
AD_COLOR_OFFSET_TV
: Initial value
AD_COLOR_OFFSET_AV1C
: Initial value
AD_COLOR_OFFSET_AV1RGB : Initial value
AD_COLOR_OFFSET_AV2C
AD_COLOR_OFFSET_AV2C
: Initial value
AD_COLOR_OFFSET_AV2YC
: Initial value
AD_COLOR_OFFSET_AV3C
: Initial value
AD_COLOR_OFFSET_AV3YC
: Initial value
KLV-26HG2 (AEP) 2-2
8. Check that the detection value of “PW_INPUT_CB” is within
the standard of the following column.
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.
2-1-4. Y signal AD calibration of COMPONENT
input.
1. Check “CP_CTRL” = 0
2. Set data as follows.
3. Input 0 IRE black full field with burst in video 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.
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 D1 range is ad-
justed 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.
2-1-5. C signal AD calibration of COMPONENT
input.
1. Check “CP_CTRL” = 0
2. Set data as follows.
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.
6. Input blue full field with burst.
7. Send “ADJUST_C_LEVEL_VIDEO” command from ECS.
The C_LEVEL_CCP2_05 registration of the D1 range is ad-
justed automatic by this command.
The value that increased and redused offset data is copied in
the TV and S video range.
<Setting data>
COLOR
25
DYNA_PICT
0 (OFF)
DC_TRAN
0 (OFF)
<Setting data>
COLOR
25
DYNA_PICT
0 (OFF)
DC_TRAN
0 (OFF)
<Video(composit) input detection value average on 0
IRE black full field>
Item
Standard
PW_INPUT_CB
128
±
5
<Video 3 input standard value on blue full field>
Item
Standard
PW_INPUT_CR
225
±
3
<Video 3 input detection value average on 100 IRE white
full field>
full field>
Item
Standard
PW_INPUT_Y
200
±
2
<Video 3 input detection value average on 0 IRE black
full field>
full field>
Item
Standard
PW_INPUT_Y
14
±
3
<Video 3 input standard value on blue full field>
Item
Standard
PW_INPUT_CB
225
±
2
KLV-26HG2 (AEP) 2-3E
2-2. White Balance Adjustment
2-2-1. White Balance of color temperature
“warm”
1. After setting PICTURE_MODE=2(Pro) set data as follows.
2. Input 70 IRE gray full field signal in video input. (AV1)
3. Adjust R_DRIVE, B_DRIVE until high light adjustment
value.
4. Input 20 IRE gray full field signal in video 1 input .
5. Adjust R_BKG, B_BKG until low light adjustment value.
6. Repeat step 2-5 until it is high and low light adjustment value.
7. Do “Color Save”
2-2-2. White Balance Adjustment of color
temperature “normal”
1. Set the COLOR_INDEX to 2 (Normal).
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
and B_BKG to the following calculated value.
3. Perform the Color Save.
<Confirmation of setting data>
Save system
Item
Picture Save
PICTURE =100 (Max)
BRIGHTNESS=50 (Center)
COLOR_INDEX=1 (“High”)
DYNA_PICT=0
DC_TRAN=0
GAMMA=0
U_BACKLIGHT=10 (Max)
Default Save
ECO_MODE=1 (Standard)
Color Save
R_DRIVE=122
G_DRIVE=128
B_DRIVE=140
R_BKG=126
G_BKG=128
B_BKG=116
<high light adjustment value>
KLV-26HG2
range
x
0.265
0.4JND
y
0.269
0.4JND
Y
–
N/A
<back ground adjustment value >
KLV-26HG2
range
x
0.267
0.9JND
y
0.274
0.9JND
Y
–
N/A
Setting of Color Temperature “Cool”
Item
Formula 26
R_DRIVE Adjusted value of Color Temperature “Warm”
× 1.087
G_DRIVE Adjusted value of Color Temperature “Warm”
× 1.000
B_DRIVE Adjusted value of Color Temperature “Warm”
× 0.857
R_BKG
Adjusted value of Color Temperature “Warm”
× 0.981
G_BKG
Adjusted value of Color Temperature “Warm”
× 1.000
B_BKG
Adjusted value of Color Temperature “Warm”
× 1.016
Setting of Color Temperature “Normal”
Item
Formula 26
R_DRIVE Adjusted value of Color Temperature “Warm”
× 1.009
G_DRIVE Adjusted value of Color Temperature “Warm”
× 1.000
B_DRIVE Adjusted value of Color Temperature “Warm”
× 0.931
R_BKG
Adjusted value of Color Temperature “Warm”
× 1.012
G_BKG
Adjusted value of Color Temperature “Warm”
× 1.000
B_BKG
Adjusted value of Color Temperature “Warm”
× 1.005
2-2-3. White Balance Adjustment of color
temperature “cool”
1. Set the COLOR_INDEX to 3 (Cool).
2. Set the R_DRIVE, G_DRIVE, B_DRIVE, R_BKG, G_BKG,
and B_BKG to the following calculated value.
3. Perform the Color Save.
4. After the adjustment, reset unsaved items (not included the
Color Save) to initial value.
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