LG 32LV3100 (CHASSIS:LP91U) Service Manual ▷ View online
4.3.4. EDID data
(1) Analog(RGB): 128bytes>
(2) HDMI 1 : 256Bytes
(3) HDMI 2 : 256Bytes
4.4. ADC Calibration
4.4.1. ADC Calibration - Component (Using External pattern)
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
(2) Process
1) Change the Input to Component1 or 2 mode.
2) Input the Component 480i@60 Hz 100 % Color Bar
2) Input the Component 480i@60 Hz 100 % Color Bar
YPbPr signal into Component1 or 2.
(MSPG-925F Model: 209 / Pattern: 65 )
3) Press ADJ key on R/C for adjustment.
4) Enter Password number. Password is “0 0 0 0”.
5) Select “0. ADC calibration : Component” by using
4) Enter Password number. Password is “0 0 0 0”.
5) Select “0. ADC calibration : Component” by using
D
/
E
(CH +/-) and press ENTER(
A
).
6) ADC adjustment is executed automatically .
7) When ADC adjustment is finished, this OSD appear.
7) When ADC adjustment is finished, this OSD appear.
4.4.2. ADC Calibration - RGB
4.4.2.1. Method of Using External pattern
4.4.2.1. Method of Using External pattern
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
- MSPG-925F/MSPG-1025/MSPG-3233 Pattern Generator
(2) Process
1) Change the Input to RGB mode..
2) Input the PC 1024x768@60 Hz Horizontal Color Bar
2) Input the PC 1024x768@60 Hz Horizontal Color Bar
signal into RGB.
(MSPG-925F Model: 60 / Pattern: 65)
3) Press ADJ key on R/C for adjustment.
4) Enter Password number. Password is “0 0 0 0”.
5) Select “0. ADC calibration : RGB” by using
4) Enter Password number. Password is “0 0 0 0”.
5) Select “0. ADC calibration : RGB” by using
D
/
E
(CH +/-)
and press ENTER(
A
).
6) ADC adjustment is executed automatically .
7) When ADC adjustment is finished, this OSD appear
7) When ADC adjustment is finished, this OSD appear
- 11 -
OK
OK
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00
FF
FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
01
15
01
03
08
46
27
78
0A
D9
B0
A3
57
49
9C
25
20
11
49
4B
A1
08
00
45
40
01
01
61
40
01
01
01
01
30
01
01
01
01
01
01
1B
21
50
A0
51
00
1E
30
48
88
40
35
00
BC
88
21
00
00
1C
0E
1F
00
80
51
00
1E
30
50
40
80
37
00
BC
88
21
00
00
18
00
00
00
FC
00
4C
60
47
20
54
56
0A
20
20
20
20
20
20
20
00
00
00
FD
70
00
3A
3F
1C
44
0F
00
0A
20
20
20
20
20
20
00
55
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00
FF
FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
01
15
01
03
80
46
27
78
0A
D9
B0
A3
57
49
9C
25
20
11
49
4B
21
08
00
45
40
01
01
61
40
01
01
01
01
30
01
01
01
01
01
01
01
1D
00
72
51
D0
1E
20
6E
28
40
55
00
C4
8E
21
00
00
1E
1B
21
50
A0
51
00
1E
30
50
48
88
35
00
BC
77
21
00
00
1C
00
00
00
FC
00
4C
60
47
20
54
56
0A
20
20
20
20
20
20
20
00
00
00
FD
70
00
3A
3F
1C
44
0F
00
0A
20
20
20
20
20
20
01
C2
80
02
03
25
F1
4F
84
07
01
16
02
03
11
12
13
14
05
90
20
22
1F
10
23
09
07
07
83
01
00
00
68
03
0C
00
A0
10
00
80
1E
00
01
1D
00
80
51
D0
1C
20
40
80
35
B0
00
BC
88
21
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
C0
3E
96
00
13
8E
21
00
00
18
8C
0A
A0
14
51
F0
16
D0
00
26
7C
43
00
C4
8E
21
00
00
98
01
1D
80
18
71
E0
1C
16
20
58
2C
25
00
C4
8E
21
00
00
9E
00
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
2A
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
00
FF
FF
FF
FF
FF
FF
00
1E
6D
01
00
01
01
01
01
10
01
15
01
03
80
46
27
78
0A
D9
B0
A3
57
49
9C
25
20
11
49
4B
21
08
00
45
40
01
01
61
40
01
01
01
01
30
01
01
01
01
01
01
01
1D
00
72
51
D0
1E
20
6E
28
40
55
00
C4
8E
21
00
00
1E
1B
21
50
A0
51
00
1E
30
50
48
88
35
00
BC
77
21
00
00
1C
00
00
00
FC
00
4C
60
47
20
54
56
0A
20
20
20
20
20
20
20
00
00
00
FD
70
00
3A
3F
1C
44
0F
00
0A
20
20
20
20
20
20
01
C2
80
02
03
25
F1
4F
84
07
01
16
02
03
11
12
13
14
05
90
20
22
1F
10
23
09
07
07
83
01
00
00
68
03
0C
00
A0
20
00
80
1E
00
01
1D
00
80
51
D0
1C
20
40
80
35
B0
00
BC
88
21
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
C0
3E
96
00
13
8E
21
00
00
18
8C
0A
A0
14
51
F0
16
D0
00
26
7C
43
00
C4
8E
21
00
00
98
01
1D
80
18
71
E0
1C
16
20
58
2C
25
00
C4
8E
21
00
00
9E
00
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
1A
(1) Apply model
All model
(2) Process
1) Change the Input to RGB mode.
2) Press ADJ key on R/C for adjustment.
3) Enter Password number. Password is “0 0 0 0”.
4) Select “0. ADC calibration : RGB” by using
2) Press ADJ key on R/C for adjustment.
3) Enter Password number. Password is “0 0 0 0”.
4) Select “0. ADC calibration : RGB” by using
D
/
E
(CH +/-)
and press ENTER(
A
).
5) ADC adjustment is executed automatically .
6) When ADC adjustment is finished, this OSD appear.
6) When ADC adjustment is finished, this OSD appear.
* Caution : No need to connect external input cable.
* Caution : Adjustment result is applied after SET Off/On
* Caution : Adjustment result is applied after SET Off/On
4.5. Check SW Version
(1) Method
1) Push In-star key on Adjust remote-control.
2) SW Version check
2) SW Version check
Check “SW VER : V3.xx”
5. PCB assembly adjustment method
5.1. Input Area-Option
(1) Profile : Must be changed the Area option value because
being different of each Country’s Language and
signal Condition.
signal Condition.
(2) Equipment : Adjustment remote control.
(3) Adjustment method
(3) Adjustment method
- The input methods are same as other chassis.(Use IN-
START Key on the Adjustment remote control.)
Refer to Job Expression of each main chassis assembly
(EBTxxxxxxxx) for Option value.
(EBTxxxxxxxx) for Option value.
5.2. Adjustment of White Balance
(For Automatic Adjustment)
- Purpose : Adjust the color temperature to reduce the
- Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
- Principle : To adjust the white balance without the saturation,
Fix the one of R/G/B gain to 192 (default data)
and decrease the others.
and decrease the others.
- Adjustment mode : Three modes - Cool / Medium / Warm
- Required Equipment
- Required Equipment
1) Remote controller for adjustment
2) Color Analyzer : CA100+ or CA-210 or same product
2) Color Analyzer : CA100+ or CA-210 or same product
(should be used in th calibrated ch by CS-1000)
LCD TV : CH-9
White LED TV: CH-14
RGB LED(MNT) : CH-6
White LED TV: CH-14
RGB LED(MNT) : CH-6
3) Auto W/B adjustment instrument(only for Auto adjustment)
5.2.1 Adjustment of White Balance (For automatic adjustment)
* LP91U Support RS-232C & I2C Interface For ADC/DDC
Adjustment.
(1) Enter the adjustment mode of DDC
- Set command delay time : 50ms
- Enter the DDC adjustment mode at the same time heat-
- Enter the DDC adjustment mode at the same time heat-
run mode when pushing the power on by power only key
- Maintain the DDC adjustment mode with same condition
of Heat-run => Maintain after AC off/on in status of Heat-
run pattern display)
run pattern display)
(2) Release the DDC adjustment mode
- Release the adjust mode after AC off/on or std-by off/on
in status of finishing the Hear-run mode.
- Release the Adjust mode when receiving the aging off
command(WB 00 FF) from adjustment equipment.
- Need to transmit the aging off command to TV set after
finishing the adjustment.
- Check DDC adjust mode release by exit key and release
DDC adjust mode)
(3) Enter the adjust mode of white balance
- Enter the white balance adjustment mode with aging
command. (F3, 00, 00)
(4) Release the adjust mode of white balance
- Enter the white balance adjustment mode with aging
command.(F3, 00, FF)
* Luminance min value is 150cd in the Cool/Medium/Warm
mode.(For LCD)
- 12 -
OK
5.2.2. 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
1) All Edge LED(except LGD), lamp over 26 inch
under 22.
3) W/B table in process of time which must be applied for
LGD edge LED module(Target color coordinate is
different by aging time)
different by aging 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 ->
Vivid(User)
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.
Off, Dynamic Colour : Off -> Picture Mode change ->
Vivid(User)
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.
- 13 -
Coordinate
Mode
x
y
Temp
uv∆
Cool
0.269 ± 0.002 0.273 ± 0.002
13,000 K
0.000
Medium
0.285 ± 0.002
0.293 ± 0.002
9,300 K
0.000
Warm
0.313 ± 0.002
0.329 ± 0.002
6,500 K
0.003
Coordinate
Mode
x
y
Temp
uv∆
Cool
0.285 ± 0.002
0.293 ± 0.002
9,300 K
0.000
Medium
0.295 ± 0.002
0.305 ± 0.002
8,000 K
0.000
Warm
0.313 ± 0.002
0.329 ± 0.002
6,500 K
0.003
Aging Time
Cool
Medium
Warm
GP2R
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
279
288
295
308
319
338
2
3-5
278
286
294
306
318
336
3
6-9
277
285
293
305
317
335
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-149
270
274
286
294
310
324
9
Over 150
269
273
285
293
309
323
- 14 -
TROUBLESHOOTING
No power
(LED indicator off)
Check 24V, 12V, 3.5V
of Power B/D
Check short of Main B/D
or Change Power B/D
Pass
Check Output of
IC1001, IC1002, IC1003,
IC1005, IC1007
Check P403 Connector
Change LED Assembly
:
[A] PROCESS(for non-adapter models)
Fail
Fail
Pass
Pass
Check LED Assembly
Change IC1002, IC1008, Q1003
Pass
Check short of
IC1001, IC1002, IC1003,
IC1005, IC1007
Fail
Re-soldering or Change defect part
Fail
No Raster
[B]: Process
Check LED status
On Display Unit
Repeat [A]/[A-1] Process
Pass
Fail
Check PANEL_VCC
of LVDS wafer
Check Output of Q1003
Fail
Change Inverter Connector
Or Inverter
Fail
Pass
Fail
Pass
Change LVDS cable
Fail
Check LVDS Cable
Pass
Check Panel Link Cable
Or Module
Change Panel Link Cable
Or Module
Check Inverter Connector
Or Inverter
Pass
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