Sharp LC-70UD20KN (serv.man4) Service Manual ▷ View online
49
LC-60UD20
LC-70UD20
10.7. PC signal adjustment (ANALOG D-Sub 15 pin)
10.8. RGB (SCART) adjustment (RGB 15K)
g
j
(
p )
1
Setting
䞉Feed the XGA 60Hz 100% full field colour bar signal
[Signal]
䚷
(100% colour saturation)to PC IN.
XGA, 60Hz
100% Full Field Colour Bar
[Terminal]
PC IN
100% white
Black
2
Auto adjustment
Adjustment process
Bring the cursor on [ANALOG PC ADJ] and press [OK]
performance
[ANALOG PC ADJ] menu
[ANALOG PC ADJ OK] appears when finished.
page 8/30
Adjustment procedure
Adjustment point
Adjustment conditions
11. White Balance Adjustment
11.1. White Balance Adjustment
Case1 : WB value is SAME compared to “before” fi x and “after” fi x.
Ex) Replacement parts: Main PWB (You can “power on” TV and video picture displays)
Before changing Main Board
1: Enter the adjustment process mode and go to page where it has “USB BACKUP” on the page 29/30.
2: Insert the USB Memory into the service socket.
3: Press Enter ,return “BackUp OK”.
4: Written AQUOS_DATA.dat into USB Memory.
1: Enter the adjustment process mode and go to page where it has “USB BACKUP” on the page 29/30.
2: Insert the USB Memory into the service socket.
3: Press Enter ,return “BackUp OK”.
4: Written AQUOS_DATA.dat into USB Memory.
After changing Main Board
1: Entering the adjustment process mode and go to page where it has “USB RESTORE”.
1: Entering the adjustment process mode and go to page where it has “USB RESTORE”.
(Same page as where “USB BACKUP” was.)
2: Insert the USB Memory written AQUOS_DATA.dat into the service socket.
3: Press Enter
4: After a few seconds , return “Restore OK”
5: Escape “Adjustment process mode” then detach USB memory.
3: Press Enter
4: After a few seconds , return “Restore OK”
5: Escape “Adjustment process mode” then detach USB memory.
Case2 : WB value is more different than before changing parts
Ex) Replacement parts: Main PWB (New repair board, such as NO data)
or Change LCD module unit.
or Change LCD module unit.
10.8. RGB (SCART) adjustment (RGB 15K)
1
Setting
䞉Feed the RGB 15k 50Hz 100% full field colour bar signal
[Signal]
䚷
(100% colour saturation)to EXT1 SCART IN.
RGB 15K, 50Hz
100% Full field colour bar
[Terminal]
EXT1 SCART RGB IN
100% white
Black
2
Auto adjustment
Adjustment process
Bring the cursor on [SCART RGB ADJ] and press [OK]
performance
[SCART RGB ADJ] menu
[SCART RGB ADJ OK] appears when finished.
page 9/30
Adjustment point
Adjustment conditions
Adjustment procedure
50
LC-60UD20
LC-70UD20
CONDITION
PROCEDURE
ITEM
1 Setting
Brightness䠖MAX (+16)
AV MODE: DYNAMIC
Active Backlight: off
OPC: off
AV MODE: DYNAMIC
Active Backlight: off
OPC: off
*Set the luminance
meter on the center
of the screen
meter on the center
of the screen
Regarding the details of white balance adjustment procedure,
refer to white balance adjustment spec for “Kameyama model version 1.9”.
refer to white balance adjustment spec for “Kameyama model version 1.9”.
1. Confirm the TV set condition.
2. Connect the white balance jig.
3. Display the Adjustment mode screen via RS-232C command.
2. Connect the white balance jig.
3. Display the Adjustment mode screen via RS-232C command.
[ Target location for adjustment]
2 Auto
Adjustment
[Command]
Adjustment mode
KRSW0001
KKT10037
Adjustment mode
KRSW0001
KKT10037
Setting
KYOF0000
OSDS0001
SBSL0016
KYOF0000
OSDS0001
SBSL0016
Multi point adj.
MSET0001
MSET0001
[ Adjustment procedure ]
1. Using R/C, set the LCD TV to adjustment mode.
2. Set the specified level for point 7, and measure the luminance.
Set the R/G/B initial value tentatively,
then treat the strongest color in R, G and B as fixed value, adjust other 2 colors
by reducing value by 4 steps to get “target value” of point 7.
Adjust R/G/B repeatedly until converging to “target value”.
Set the R/G/B initial value tentatively,
then treat the strongest color in R, G and B as fixed value, adjust other 2 colors
by reducing value by 4 steps to get “target value” of point 7.
Adjust R/G/B repeatedly until converging to “target value”.
3. Set the specified level for point 6, and measure the luminance.
Set the revised value of G (196 * G level of point 7 / 244) (a fraction is rounded off.),
adjust the value of R/B by 4 steps to “target value” of point 6.
Set the revised value of G (196 * G level of point 7 / 244) (a fraction is rounded off.),
adjust the value of R/B by 4 steps to “target value” of point 6.
4. Set the specified level for point5, and measure the luminance.
Set the revised value of G (148 * G level of point7/ 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to “target value” of point 5.
Set the revised value of G (148 * G level of point7/ 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to “target value” of point 5.
5. Set the specified level for point4, and measure the luminance.
Set the revised value of G (92 * G level of point 7/ 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps for “target value” of point 4.
Set the revised value of G (92 * G level of point 7/ 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps for “target value” of point 4.
Point 7
LEV70244
MG7G****
MG7B****
MG7R****
LEV70244
MG7G****
MG7B****
MG7R****
Point 6
LEV60196
MG6G****
MG6B****
MG6R****
LEV60196
MG6G****
MG6B****
MG6R****
Point 5
LEV50148
MG5G****
LEV50148
MG5G****
6. Set the specified level for point 3, and measure the luminance.
Set the revision value of G (72 * G level of point 7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to “target value” of point 3.
Set the revision value of G (72 * G level of point 7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to “target value” of point 3.
7. Set the specified level for point 2, and measure the luminance.
Set the revised value of G (44 * G level of point 7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to ”target value” of point2.
Set the revised value of G (44 * G level of point 7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to ”target value” of point2.
8. Set the specified level for point 1, and measure the luminance.
Set the revised value of G (20 * G level of point7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to ”target value” of point1.
Set the revised value of G (20 * G level of point7 / 244) (a fraction is rounded off),
adjust the value of R/B by 4 steps to ”target value” of point1.
9 Write the value of W/B adjustment by inputting command
“MSET0030”.
“MSET0030”.
*Initial value of RGB at Point 7 = “244”
*Initial value of RGB at Point 1-6
= correction value of G of each point
*Initial value of RGB at Point 1-6
= correction value of G of each point
51
LC-60UD20
LC-70UD20
MG5B****
MG5R****
MG5R****
Point 4
LEV40092
MG4G****
MG4B****
MG4R****
LEV40092
MG4G****
MG4B****
MG4R****
Point 3
LEV30072
MG3G****
MG3B****
MG3R****
LEV30072
MG3G****
MG3B****
MG3R****
Point 2
LEV20044
MG2G****
MG2B****
MG2R****
LEV20044
MG2G****
MG2B****
MG2R****
Point 1
LEV10020
MG1G****
MG1B****
MG1R****
LEV10020
MG1G****
MG1B****
MG1R****
W/B adj. value data
input
MSET0030
input
MSET0030
[Caution]
To measure the chromaticity and luminance , please wait more
than the following delay time from return marks of “OK”.
Because there is a delay time to output the pattern after
executing a test pattern output command.
䚷㻌
* Picture delay time : 70ms
(the maximum total delay of the main microcomputer
and LCD controller)
To measure the chromaticity and luminance , please wait more
than the following delay time from return marks of “OK”.
Because there is a delay time to output the pattern after
executing a test pattern output command.
䚷㻌
* Picture delay time : 70ms
(the maximum total delay of the main microcomputer
and LCD controller)
[ Target value for adjustment ]
The target value applies correspondingly to the teaching set.
And read the target value from the marking position.
The target value applies correspondingly to the teaching set.
And read the target value from the marking position.
70 INCH
1. Using R/C, set the LCD TV to adjustment mode.
1. Using R/C, set the LCD TV to adjustment mode.
2. Set the specified level for point 7, and measure the luminance.
Set the R/G/B initial value tentatively,
then treat the strongest color of R/G/B as fixed value, adjust remained other.
2 colors by reducing value to get “target value” of point 7.
Adjust R/G/B repeatedly until converging to “target value”.
Set the R/G/B initial value tentatively,
then treat the strongest color of R/G/B as fixed value, adjust remained other.
2 colors by reducing value to get “target value” of point 7.
Adjust R/G/B repeatedly until converging to “target value”.
3. Set the specified level for point 6, and measure the luminance.
Set the revised value of G (98 * G level of point 7 / 121) (a fraction is rounded off.),
adjust the value of R/B to “target value” of point 6.
Set the revised value of G (98 * G level of point 7 / 121) (a fraction is rounded off.),
adjust the value of R/B to “target value” of point 6.
4. Set the specified level for point5, and measure the luminance.
Set the revised value of G (73 * G level of point7/ 121) (a fraction is rounded off),
adjust the value of R/B to “target value” of point 5.
Set the revised value of G (73 * G level of point7/ 121) (a fraction is rounded off),
adjust the value of R/B to “target value” of point 5.
5. Set the specified level for point4, and measure the luminance.
Set the revised value of G (46 * G level of point 7/ 121) (a fraction is rounded off),
adjust the value of R/B for “target value” of point4.
Set the revised value of G (46 * G level of point 7/ 121) (a fraction is rounded off),
adjust the value of R/B for “target value” of point4.
6. Set the specified level for point 3, and measure the luminance.
Set the revision value of G (36 * G level of point 7 / 121) (a fraction is rounded off),
adjust the value of R/B to “target value” of point 3
Set the revision value of G (36 * G level of point 7 / 121) (a fraction is rounded off),
adjust the value of R/B to “target value” of point 3
7. Set the specified level for point 2, and measure the luminance.
Set the revised value of G (22 * G level of point 7 / 121) (a fraction is rounded off),
adjust the value of R/B to ”target value” of point2.
Set the revised value of G (22 * G level of point 7 / 121) (a fraction is rounded off),
adjust the value of R/B to ”target value” of point2.
8. Set the specified level for point 1, and measure the luminance.
Set the revised value of G (12 * G level of point7 / 121) (a fraction is rounded off),
adjust the value of R/B to ”target value” of point1.
Set the revised value of G (12 * G level of point7 / 121) (a fraction is rounded off),
adjust the value of R/B to ”target value” of point1.
9 Write the value of W/B adjustment by inputting command
“MSET0030”.
“MSET0030”.
*Initial value of RGB at Point 7 = “121”
*Initial value of RGB at Point 1-6
= correction value of G of each point
*Initial value of RGB at Point 1-6
= correction value of G of each point
[Caution]
To measure the chromaticity and luminance , please wait more
than the following delay time from return marks of “OK”.
Because there is a delay time to output the pattern after
executing a test pattern output command.
䚷㻌
* Picture delay time : 70ms
(the maximum total delay of the main microcomputer
and LCD controller)
To measure the chromaticity and luminance , please wait more
than the following delay time from return marks of “OK”.
Because there is a delay time to output the pattern after
executing a test pattern output command.
䚷㻌
* Picture delay time : 70ms
(the maximum total delay of the main microcomputer
and LCD controller)
[ Target value for adjustment ]
The target value applies correspondingly to the teaching set.
And read the target value from the marking position.
The target value applies correspondingly to the teaching set.
And read the target value from the marking position.
52
LC-60UD20
LC-70UD20
Reference value for adjustment ]
Equipment : Luminance meter [Minolta CA-210]
(DYNAMIC MODE)
Equipment : Luminance meter [Minolta CA-210]
(DYNAMIC MODE)
Level
Referenc
e value
Adjustme
nt Spec.
Inspectio
n Spec.
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
x=0.2720
y=0.2770
set the LCD TV as below.
±0.0040 ±0.0080
Point 1
20
±0.0060 ±0.0120
Point 2
44
±0.0030
±0.0020 ±0.0040
Point 3
72
±0.0030 ±0.0060
Point 4
92
Point 7
Point 6
196
±0.0010 ±0.0020
Point 5
148
±0.0015
Remarks
For inspection,
AV MODE : [DYNAMIC]
Active Backlight : OFF
Aging time : Minimum 60 min.
Active Backlight : OFF
Aging time : Minimum 60 min.
±0.0010 ±0.0020
244
(MOVIE THX MODE)
Level
Referenc
e value
Adjustme
nt Spec.
Inspectio
n Spec.
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
x=0.3127
y=0.3290
set the LCD TV as below.
244
±0.0010 ±0.0020
Point 6
196
±0.0010 ±0.0020
Point 5
148
±0.0015 ±0.0030
Point 4
92
±0.0020 ±0.0040
Point 7
Point 3
72
±0.0030 ±0.0060
Point 2
44
±0.0040 ±0.0080
Point 1
20
±0.0060 ±0.0120
Remarks
For inspection,
AV MODE : [MOVIE THX]
Active Backlight : OFF
Aging time : Minimum 60 min.
Active Backlight : OFF
Aging time : Minimum 60 min.
Click on the first or last page to see other LC-70UD20KN (serv.man4) service manuals if exist.