LG 26LC4R (CHASSIS:LP78A) Service Manual ▷ View online
- 13 -
7) Double click the download file low then, "edit" window
will be opened.
8) Chick the choice button I n the "edit window", then "file
choice window’ will be opened
9) Choose the Hex file in folder and execute downloading
with click "open button"
10) Click OK button at the "edit window"
11) Downloading
12) If download is failed, for example "No acknowledge
from slave", execute download again from (1).
4.3. Channel memory download
(1) Connect the download jig to D-sub jack.
(2) Execute ‘Channel.vi2c’ program in PC, then a main
(2) Execute ‘Channel.vi2c’ program in PC, then a main
window will be opened.
(3) Push the button change and select the Channel memory
data.
(4) Check the communication is OK or not.
=> Push the Read area (Ackn. Check) and check Cyan area
=> Push the Read area (Ackn. Check) and check Cyan area
is OK message.
(5) Push the Update NVM from File
4.4. Tool Option Area Option Change
Before PCB check, have to change the Tool option and Area
option
Option values are below
(If on changed the option, the input menu can differ the model
spec.)
The input methods are same as other chassises(Use adj Key
on the Adjust Remote control)
option
Option values are below
(If on changed the option, the input menu can differ the model
spec.)
The input methods are same as other chassises(Use adj Key
on the Adjust Remote control)
4.5. Color carrier Adjustment
(Inspection process)
(1) Tuning the RF signal
ZA, TA : PAL Philips Pattern(with color Bar)
(2) push the "adj" key in the adjustment remote control.
5. EDID
(The Extended Display Identification Data )
/DDC
(Display Data Channel)
download
* Caution
- Use the proper signal cable for EDID Download.
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing.
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing.
* EDID Data
<EDID DATA Analog Set : 128bytes>
< EDID DATA HDMI 1 Set : 256bytes>
< EDID DATA HDMI 2 Set : 256bytes>
=> Detail EDID Options are below(a, b, c, d, e)
a. Product ID
- 14 -
Tool Option
Inch
ZA
TA
26
02240
04288
32
02256
04304
37
02264
04312
42
02272
04320
Area Option
Depend on PR
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital :3
Data
1E6D
01
03
For RGB EDID
For HDMI EDID
Addr 00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000 00
FF
FF
FF
FF
FF
FF
00
1E
6D
0010
01
03
80
46
27
78
EA
D9
B0
A3
57
49
9C
25
0020 11
49
4B
81
08
00
01
01
01
01
01
01
45
40
01
01
0030 61
40
01
01
01
01
1B
21
50
A0
51
00
1E
30
48
88
0040 35
00
BC
88
21
00
00
1C
4E
1F
00
80
51
00
1E
30
0050 40
80
37
00
BC
88
21
00
00
18
0060
00
00
00
FD
0070 00
3A
3F
1F
32
09
00
0A
20
20
20
20
20
20
01
0080 02
03
25
F1
52
01
06
07
15
16
02
03
11
12
13
04
0090 14
85
20
21
22
1F
10
23
09
07
07
83
01
00
00
65
00A0 03
0C
00
10
00
01
1D
00
80
51
D0
1C
20
40
80
35
00B0 00
BC
88
21
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
00C0 3E
96
00
13
8E
21
00
00
18
8C
0A
A0
14
51
F0
16
00D0 00
26
7C
43
00
C4
8E
21
00
00
98
01
1D
80
18
71
00E0 1C
16
20
58
2C
25
00
C4
8E
21
00
00
9E
00
00
00
00F0 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Addr 00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
0000 00
FF
FF
FF
FF
FF
FF
00
1E
6D
0010
01
03
80
46
27
78
EA
D9
B0
A3
57
49
9C
25
0020 11
49
4B
81
08
00
01
01
01
01
01
01
45
40
01
01
0030 61
40
01
01
01
01
1B
21
50
A0
51
00
1E
30
48
88
0040 35
00
BC
88
21
00
00
1C
4E
1F
00
80
51
00
1E
30
0050 40
80
37
00
BC
88
21
00
00
18
0060
00
00
00
FD
0070 00
3A
3F
1F
32
09
00
0A
20
20
20
20
20
20
01
0080 02
03
25
F1
52
01
06
07
15
16
02
03
11
12
13
04
0090 14
85
20
21
22
1F
10
23
09
07
07
83
01
00
00
65
00A0 03
0C
00
20
00
01
1D
00
80
51
D0
1C
20
40
80
35
00B0 00
BC
88
21
00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
00C0 3E
96
00
13
8E
21
00
00
18
8C
0A
A0
14
51
F0
16
00D0 00
26
7C
43
00
C4
8E
21
00
00
98
01
1D
80
18
71
00E0 1C
16
20
58
2C
25
00
C4
8E
21
00
00
9E
00
00
00
00F0 00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
b. Serial No : Controlled on production line
c. Month, Year : Controlled on production line
c. Month, Year : Controlled on production line
ex) Monthly: '03' => '03'
Year: '2005' => '0F'
d. Model Name(Hex)
e. Checksum (7EH) : Changeable by total EDID data
e. Checksum (7EH) : Changeable by total EDID data
5.1. Required Test Equipment
(1) Adjusting PC with S/W for writing EDID data.(S/W:EDID
TESTER ver.2.5)
(2) A Jig for EDID Download.
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
5.2. Preparation for Adjustment
(1) As above Fig 5, Connect the Set, EDID Download Jig,
PC&Cable.
(2) Turn on the PC & EDID Download Jig. And execute the
S/W : EDID TESTER Ver.2.5.
(3) Set up the S/W option.
Repeat Number : 5
Device Address : A0
PageByte : 8
Device Address : A0
PageByte : 8
(4) Power on the Set.
5.3. Sequence of Adjustment
(1) DDC data of Analog-RGB
1) Init the data
2) Load the EDID data. (Open file)
[Analog - RGB : LP78A_RGB.ANA]
[Digital - HDMI1 : LP78A_HDMI1.DVI]
[Digital - HDMI2 : LP78A_HDMI2.DVI]
[Digital - HDMI1 : LP78A_HDMI1.DVI]
[Digital - HDMI2 : LP78A_HDMI2.DVI]
3)Set the S/W as below
4) Push the “Write Data & Verify”button. And confirm “Yes”.
5) If the writing is finished, you will see the “OK” message.
5) If the writing is finished, you will see the “OK” message.
6. Adjustment of White Balance
6.1 Purpose and Principle for adjustment
of the color temperature
(1) Purpose: Adjust the color temperature to reduce the
deviation of the module color temperature.
(2) Principle: To adjust the white balance without the
saturation,Fix the one of R/G/B gain to 80 and decrease
the others.
the others.
6.2. Adjustment mode
: Two modes of Cool and Warm
(Medium data is automatically calibrated by the cool data)
(Medium data is automatically calibrated by the cool data)
6.3. Required Equipment
(1) Remote control for adjustment
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
(2) Color Analyzer (CA-110 or CA-210 or same product)
(3) Auto W/B adjustment instrument(only for Auto adjustment)
- 15 -
<EDID DATA>
TV set
o r
Main
b / d
RGB
HDMI1
HDMI2
<Fig.5 Connector Diagram of DDC download>
- 16 -
6.4. Connecting diagram of equipment for
measuring
(For Automatic Adjustment)
(1) Enter the adjustment mode of the white balance
- Enter the white balance adjustment mode at the same
time heat-run mode when pushing the power on by power
only key.
only key.
- Maintain the white balance adjustment mode with same
condition of Heat-run. (Maintain after AC off/on in status
of Heat-run pattern display)
of Heat-run pattern display)
(2) Release the white balance 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(F3 00 00) from adjustment equipment
- Need to transmit the aging off command to TV set after
finishing the adjustment.
O
Standard color coordinate and temperature when using the
CA-110 or CA210 equipment
O
Synchronization relation between PSM and CSM
(3) DDC adjustment support command set
* R/G/B GAIN max value : 80
* Luminance min value is 200 cd/m
* Luminance min value is 200 cd/m
2
in the cool mode(for LCD)
6.5. Adjustment of White Balance
(For Manual adjustment)
- Adjustment mode : Two modes of Cool (Dynamic) and
Warm(Mild) (Medium data is automatically calibrated by the
cool data)
cool data)
- Color analyzer(CA110, CA210) should be used in the
calibrated ch by CS-1000.(LCD : CH9, PDP : CH10)
- Operate the zero-calibration of the CA-110 or CA-210, then
stick sensor to the module when adjusting.
- 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 will be differ )
longer than 15 minutes. (If not executed this step, the
condition for W/B will be differ )
(2) Changing to the av mode by remote control.(av mode : av1
or av2 or av3)
(3) Display the internal pattern of the VCT-Pro IC by pushing
the IN-START.
(4) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using
D
/
E
(CH ±) key on
R/C.
(5) Adjust R/ G/B Gain using
F
/
G
(VOL ±) key on R/C.
(6) Adjust two modes of Cool(Dynamic) and Warm(Mild) as
below figure. (Fix the one of R/G/B and change the others)
1) Push the one time the in-start key : Dynamic(Cool)
2) Push the two more the in-start key : Mild(Warm)
1) Push the one time the in-start key : Dynamic(Cool)
2) Push the two more the in-start key : Mild(Warm)
Adjustment
Aging On/Off
Input select
R GAIN
G GAIN
B GAIN
R GAIN
G GAIN
B GAIN
R GAIN
G GAIN
B GAIN
CMD(HEX)
F3
F4
16
18
1A
16
18
1A
16
18
1A
ADR
00
00
00
01
02
VALUE
FF/00
00 - FE
00 - FE
00 - FE
00 - FE
00 - FE
00 - FE
00 - FE
00 - FE
00 - FE
detail
OO : OFF
01 : ON
FF : WB Ready
0x10 : TV
0x20 : AV1(SCART1)
0x21 : AV2(SCART2)
0x23 : AV3(Side AV)
0x40 : Component1
0x50 : RGB DTV
0x60 : RGB PC
0x90 : HDMI1 DTV
GAIN adjustment
CSM COOL
GAIN adjustment
CSM NORMAL
GAIN adjustment
CSM WARM
PSM
CSM
Remark
Dynamic
Cool
Standard
Normal
Mild
Warm
Mode
Color coordinate
Temp
∆uv
X
Y
Cool
0.276±0.002
0.283±0.002
11,000K 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
Mode
Color coordinate
Temp
∆uv
X
Y
Cool
0.276±0.002
0.283±0.002
11,000K 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
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