Sony KLV-23M1 Service Manual ▷ View online
KLV-23M1 (UC) 1-4
1-7. LCD PANEL REMOVAL
3
Four screws
(+BVTP 4x14)
4
LCD braket
1
Four screws
(+PSW 4x8)
6
Two screws
(+PSW 3x8)
9
Two screws
(+PSW 3x8)
2
Two screws
(+BVTP 4x14)
5
Three screws
(+BVTP 4x14)
7
Stay side (L)
0
Stay side (R)
qa
LCD panel
8
Three screws
(+BVTP 4x14)
LVDS connector
KLV-23M1 (UC) 1-5E
1-8. H1 BOARD REMOVAL
1-9. H2 BOARD REMOVAL
1
Screw
(+BVTP 3x10)
2
H1 board
1
Two screws
(+BVTP 3x10)
2
H2 board
KLV-23M1 (UC) 2-1
AD_C_OFSET_D4
128
AD_C_OFST_HDMI_D1
128
AD_C_OFST_HDMI_D2
128
AD_C_OFST_HDMI_D3
128
AD_C_OFST_ HDMI_D4
128
AD_C_OFST_ HDMI_VGA
128
ADJ_TARGET_BL_IN_Y
3328
ADJ_Y_DEADBAND
16
ADJ_Y_LOOPATTEN
16
ADJ_C_LOOPATTEN
16
AD_ADJ_TIME_OUT
80
ADJ_AREA_H2_VB1
180
ADJ_AREA_H2_VB2
180
ADJ_AREA_H2_VB3
1020
ADJ_AREA_H2_VB4
1220
ADJ_AREA_H2_OFFSET
10
ADJ_AREA_V2
380
2-3-2. Y Level/COLOR adjustment of
component input
1.
Set “PICTURE_MODE” = 2 (Pro) and change the register
setting to the following values.
setting to the following values.
Format
Item
Data
Picture Save
PICTURE
100 (max)
BRIGHTNESS
50 (center)
Color
25 (center)
USER_CTRL
0 (all off)
2.
Set “THUNDER_ENABLE” = 0 (Bolt is set to through
mode) .
mode) .
3.
Input the D3 (1080i) all-white signal (100 IRE) .
4.
Adjust CCP’s Y_LEVEL to set the value of BOLT’s G OUT
as follows.
as follows.
Item
Standard
Video_g
3328/4080 ±16
5.
Input the D3 (1080i) color-bar signal (100 IRE) .
6.
Adjust CCP’s C_LEVEL to set the value of BOLT’s B OUT
as follows.
as follows.
Item
Standard
Video_b
VB1=VB4 ±16
7.
Save the adjustment values in the D3 EEPROM.
SECTION 2
ADJUSTMENTS
2-1. AGING
2-1-1. Aging setting
1.
To set aging mode on no input signal, change the register.
And do the “service mode”.
And do the “service mode”.
[AginIg setting]
“MON_CON_REG_2”=217
“MON_CON_REG_2”=217
2-1-2. Aging conditions
Applied voltage
: Rated
Interval of time
: Over 30 min
Ambient temperature : 22°C to 28°C
Pattern
Pattern
: All-white is set by aging mode
[Transition of LED indication during aging]
When AGING_TIMER > 0
Green (0.5sec) -> Off (0.5sec) -> Green (0.5sec) -> Off (0.5sec)
When AGING_TIMER = 0
Green (3.0sec) -> Off (3.0sec) -> Green (3.0sec) -> Off (3.0sec)
When AGING_TIMER > 0
Green (0.5sec) -> Off (0.5sec) -> Green (0.5sec) -> Off (0.5sec)
When AGING_TIMER = 0
Green (3.0sec) -> Off (3.0sec) -> Green (3.0sec) -> Off (3.0sec)
Note:
After aging, if power was shut down befor W/B adjustment,
adjust W/B after aging more than 30 seconds.
adjust W/B after aging more than 30 seconds.
2-2. Measurement equipment
1.
Color analyzer (CA-210) manufactured by MINOLTA.
2.
Signal generator.
1)
Use the NTSC Video signals with 7.5 IRE SETUP.
2)
When the HDMI signal (1080i, 720p) generated by VG-828
is used, be careful that the H center position deviates by 44
dots.
is used, be careful that the H center position deviates by 44
dots.
2-3. ADJUSTMENT OF SIGNAL LEVEL
2-3-1. Check AD calibration registration items
1.
Set following items.
Item
Default value
AD_Y_FSET_TV
128
AD_Y_OFSET_V
128
AD_Y_OFSET_S
128
AD_Y_OFSET_D1
128
AD_Y_OFSET_D2
128
AD_Y_OFSET_D3
128
AD_Y_OFSET_D4
128
AD_Y_OFST_HDMI_D1
128
AD_Y_OFST_HDMI_D1
128
AD_Y_OFST_HDMI_D3
128
AD_Y_OFST_HDMI_D4
128
AD_Y_OFST_HDMI_VGA
128
AD_C_OFSET_TV
128
AD_C_OFSET_V
128
AD_C_OFSET_S
128
AD_C_OFSET_D1
122
AD_C_OFSET_D2
123
AD_C_OFSET_D3
128
VB3
VB4
VB1 VB2
KLV-23M1 (UC) 2-2
8.
Add the following offsets to the values of step 7 and copy the
obtained values to the EEPROM for D1, D2, and D4
respectively.
obtained values to the EEPROM for D1, D2, and D4
respectively.
Item
D1
D2
D4
Y_LEVEL OFFSET
±0
±0
±0
C_LEVEL OFFSET
-6
-5
±0
2-3-3. Y Level/COLOR adjustment of
HDMI input
1.
Copy the Y Level/COLOR adjustment values of component
input to the EEPROM for HDMI D1, D2, D3, D4, and VGA
respectively.
Copy the D2 adjustment values for VGA.
input to the EEPROM for HDMI D1, D2, D3, D4, and VGA
respectively.
Copy the D2 adjustment values for VGA.
2-3-4. Y Level/COLOR adjustment of
Video input (by using a jig)
1.
Set PICTURE_MODE = 2 (Pro), and then change the
register setting to the following values.
register setting to the following values.
Format
Item
Data
Picture Save
PICTURE
100 (max)
BRIGHTNESS
50 (center)
Color
25 (center)
Hue
25 (center)
USER_CTRL
0 (all off)
2.
Set THUNDER_ENABLE = 0 (Bolt is set to through mode) .
3.
Input the Video 1 (composite) all-white signal (100 IRE) .
4.
Adjust CCP’s Y_LEVEL to set the value of BOLT’s G OUT
as follows.
as follows.
Item
Standard
Video_g
3328/4080 ±16
5.
Input the Video 1 (composite) color-bar signal (75 IRE) .
6.
Adjust CCP’s C_LEVEL to set the value of BOLT’s B OUT
as follows.
as follows.
Item
Standard
Video_b
VB1=VB4 ±16
7.
Write the adjustment values in the VIDEO EEPROM.
8.
Add the following offsets to the values of step 7, and then
copy the obtained values to the Svideo EEPROM.
copy the obtained values to the Svideo EEPROM.
Item
S-VIDEO
Y_LEVEL OFFSET
±0
C_LEVEL OFFSET
±0
VB3
VB4
VB1 VB2
2-3-5. Y Level/COLOR adjustment of RF input
1.
Set PICTURE_MODE = 2 (Pro) and change the register
setting to the following values.
setting to the following values.
Format
Item
Data
Picture Save
PICTURE
100 (max)
BRIGHTNESS
50 (center)
Color
25 (center)
Hue
25 (center)
USER_CTRL
0 (all off)
2.
Set THUNDER_ENABLE = 0 (Bolt is set to through mode) .
3.
Input the RF all-white signal (RF modulated 100 IRE
signal) .
signal) .
4.
Adjust CCP’s Y_LEVEL to set the value of BOLT’s G OUT
as follows.
as follows.
Item
Standard
Video_g
3328/4080 ±16
5.
Input the RF color-bar signal (RF modulated 75% color bar) .
6.
Adjust CCP’s C_LEVEL to set the value of BOLT’s B OUT
as follows.
as follows.
Item
Standard
Video_b
VB1=VB4 ±16
7.
Write the adjustment values in the RF EEPROM.
2-4. WHITE BALANCE ADJUSTMENT
This adjustment uses ECS
2-4-1. White balance adjustment of color
temperature “Cool”
1.
Set PICTURE_MODE = 2 (Pro) and change the register
setting to the following values.
setting to the following values.
Item
Data
PICTURE
100 (max)
BRIGHTNESS
50 (center)
Color
25 (center)
Hue
25 (center)
COLOR_INDEX
1 (high)
USER_CTRL
0 (all off)
SCALER_MODE
3 (full)
2.
Input the 1080i 80% all-gray signal from the Video 4 input.
VB3
VB4
VB1 VB2
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