LG 47SL90QR-LA / 47SL90QR-TA (CHASSIS:LP91L) Service Manual ▷ View online
5.3. Adjustment of White Balance (for Manual
adjustment)
(1) Color analyzer(CA100+, CA210) should be used in the
calibrated ch by CS-1000
(2) Operate the zero-calibration of the CA100+ or CA-210,
then stick sensor to the module when adjusting.
(3) For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run by pressing “POWER
ON” key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)
2) Push “Exit” key.
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”
7) Enter the W/B ADJUST Mode
8) Stick the sensor to the center of the screen and select
3) Change to the AV mode by remote control.
4) Input external pattern (85% white pattern)
5) Push the ADJ key -> Enter “0000” (Password)
6) Select “3. W/B ADJUST”
7) Enter the W/B ADJUST Mode
8) Stick the sensor to the center of the screen and select
each items (Red/Green/Blue Gain and Offset) using
D
/
E
(CH +/-) key on R/C..
9) Adjust R/ G/ B Gain using
F
/
G
(VOL +/-) key on R/C.
10) Adjust three modes all (Cool / Medium / Warm) : Fix
the one of R/G/B gain and change the others
11) When adjustment is completed, Enter “COPY ALL”.
12) Exit adjustment mode using EXIT key on R/C.
12) Exit adjustment mode using EXIT key on R/C.
* CASE
First adjust the coordinate far away from the target value(x, y).
1) x, y > target
1) x, y > target
i) Decrease the R, G.
2) x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
ii) Decrease the one of the others.
3) x > target, y < target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
ii) Adjust x value by decreasing the R
4) x < target, y > target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
ii) Adjust x value by decreasing the G
(4) Standard color coordinate and temperature when using the
CA100+ or CA210 equipment
- The Time Table of color coordinates by SET Aging Time
In the SET applied LED module (LH90QR Series), cause
of the physical characteristics of LED Module, sets are
taken a 120 minutes by aging time to stabilize a color
coordinates. So White Balance Control equipments have to
get the SET Aging Time from the SET and then going to
control the W/B by revise color coordinates at each time
of the physical characteristics of LED Module, sets are
taken a 120 minutes by aging time to stabilize a color
coordinates. So White Balance Control equipments have to
get the SET Aging Time from the SET and then going to
control the W/B by revise color coordinates at each time
To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : Select Vivid and change
Dynamic Contrast : Off
Dynamic Colour : Off
-> Picture Mode change : Vidid -> Vivid(User)
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)
measure at the below conditions.
Picture Mode : Select Vivid and change
Dynamic Contrast : Off
Dynamic Colour : Off
-> Picture Mode change : Vidid -> Vivid(User)
(If you miss the upper condition, the coordinates of W/B
can be lower than the spec.)
5.4. Intelligent Sensor Inspection Guide
Step 1. Turn on the TV set.
Step 2. Press “EYE” button on the Adjustment remote control.
Step 2. Press “EYE” button on the Adjustment remote control.
Step 3. Block the Intelligent Sensor module on the front C/A
about 6 seconds.
When the “Sensor Data” is lower than 20, you can see
the “OK” message -> If it doesn’t show “OK” message,
the Sensor Module is defected one.
You have to replace that with a good one.
the “OK” message -> If it doesn’t show “OK” message,
the Sensor Module is defected one.
You have to replace that with a good one.
Step 4. After check the “OK” message come out, take out your
hand from the Sensor module. -> Check “Sensor
Data” value change from “0” to “300” or not.
Data” value change from “0” to “300” or not.
If it doesn’t change the value, the sensor is also
defected one.
You have to replace it.
defected one.
You have to replace it.
- 13 -
Coordinate
Mode
x y
Temp uv∆
Cool 0.269±0.002
0.273±0.002
13,000K 0.000
Medium 0.285±0.002 0.293±0.002
9,300K
0.000
Warm 0.313±0.002 0.329±0.002
6,500K 0.003
Minute
Cool
Medium
Warm
1
0~4
274/283
292/304
318/334
2
5~9
273/281
291/302
317/332
3
10~14
273/279
291/300
317/330
4
15~24
272/277
290/298
316/328
5
25~39
271/275
289/296
315/326
6
40~49
270/273
288/293
314/324
7
50~79
269/273
286/293
313/324
8
80~
269/273
285/293
312/324
5.5. Blue-Tooth Inspection Guide
(1) Test Condition.
Must located another set in a state of DC ON (without
checking set) in closer distance(5M).
-On total assembly step, S/W deal with connection
(between Set and another Set, other device that be
compatible with Bluetooth)
checking set) in closer distance(5M).
-On total assembly step, S/W deal with connection
(between Set and another Set, other device that be
compatible with Bluetooth)
(2) Need device : same set in closer distance, adjustment
remote control
(3) Method
1) Push “Power on key” on adjustment remote control.
change “Bluetooth On” mode
2) Push “EXIT” key
3) Push ”B-TOOTH”(NEW) or “PIP”(OLD) key
4) Check “Searching OK” message
5) Push “Exit” key, finish check.
change “Bluetooth On” mode
2) Push “EXIT” key
3) Push ”B-TOOTH”(NEW) or “PIP”(OLD) key
4) Check “Searching OK” message
5) Push “Exit” key, finish check.
5.6 Checking the function of Local
Dimming using adjusts Remote control
- Dimming checking is doing in “Power Only” mode
- Enter the signal of component - Pattern: 7 (combination)
- Enter the signal of component - Pattern: 7 (combination)
Time : 225 (1920 *1080)
- Push the button “Tilt”
- Checking the function of Dimming refer to the Picture at
- Checking the function of Dimming refer to the Picture at
below
- Push the button “Tilt” or “Exit” key
- 14 -
Pattern 7 (combination)
Local Dimming Demo screen
- 15 -
TROUBLESHOOTING
No power
(LED indicator off)
Check 24V, 12V, 5,2V
of Power B/D
Check short of Main B/D
or Change Power B/D
Pass
Check Output of
IC1001, IC1003, IC1007
Check P307 Connector
Change LED Assy.
:
[A] PROCESS
Fail
Fail
Pass
Pass
Check LED Assy.
Change IC1002, Q1003
Pass
Check short of IC1001,
IC1003, IC1007
Fail
Re-soldering or Change defect
part of IC1001, IC1003, IC1007
Fail
No Raster
[B]: Process
Check LED status
On Display Unit
Repeat A PROCESS
Pass
Fail
Check Output of IC802
Change IC802
Fail
Change Inverter Connector
Or Inverter
Fail
Pass
Fail
Pass
Change Module
Fail
Check LVDS Cable
Pass
Check Panel Link Cable
Or Module
Change Panel Link Cable
Or Module
Check Inverter Connector
Or Inverter
Pass
- 16 -
No Raster on PC Signal
Check Input source
Cable And Jack
Pass
Re-soldering or
Change the defect part
Change the defect part
Pass
Check the Input/Output
Of IC100
Fail
Re-soldering or
Change the defect part,
Check RGB EDID Data
Repeat [A], & [B] Process
Pass
Check the Input/Output
Of J104
Fail
Pass
Check the Input/Output
Of IC800
Fail
Re-soldering or
Change the defect part
Pass
No Raster on COMMPONENT Signal
Check Input source
Cable And Jack
Pass
Re-soldering or
Change the defect part
Pass
Check the Input/Output
Of IC800
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Check The Input/Output
Of JK101
Fail
Pass
No Raster on HDMI Signal
Check Input source
Cable And Jack
Pass
Pass
Pass
Fail
Re-soldering or
Change the defect part
Check the Input/Output
Of JK301, JK302, JK303
Fail
Check the Input/Output
Of IC300, IC301, JK302
Fail
Re-soldering or
Change the defect part
Check HDMI EDID Data
Re-download HDCP
Pass
Pass
Check the Input/Output
Of IC800
Fail
Re-soldering or
Change the defect part
Repeat [A], & [B] Process
Click on the first or last page to see other 47SL90QR-LA / 47SL90QR-TA (CHASSIS:LP91L) service manuals if exist.