LG 22LS4D (CHASSIS:LD73B / NF036A) Service Manual ▷ View online
- 9 -
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
1.
720X400
31.468
70.08
28.321
2.
640X480
31.469
59.94
25.17
VESA
37.500
75.00
31.50
3.
800X600
37.879
60.31
40.00
VESA
46.875
75.00
49.50
4.
832X624
49.725
74.55
57.283
5.
1024X768
48.363
60.00
65.00
VESA(XGA)
56.476
70.00
75.00
60.023
75.03
78.75
6.
1280X768
47.693
59.99
80.125
VESA(WXGA)
7.
1360X768
47.649
59.94
84.625
VESA(WXGA)
8.
1366X768
47.649
59.94
84.625
Supported
9.
1280X1024
63.981
60.020
108.00
VESA(SXGA)
10
1440X900
55.469
59.901
88.750
CVT Red. Blanking
11.
1440X900
55.935
59.887
106.5
CVT
12.
1400X1050
64.744
59.948
101.00
CVT Red. Blanking
13.
1400X1050
65.317
59.978
121.750
CVT
14.
1680X1050
64.674
59.883
119.00
CVT Red. Blanking
15.
1680X1050
65.290
59.954
146.25
CVT
16.
1920X1080
66.647
59.988
138.625
WUXGA
8. HDMI PC Table
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to all of the LD73B chassis
manufactured at LG TV Plant all over the world.
manufactured at LG TV Plant all over the world.
2. Specification.
1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer.
However, the use of isolation transformer will help to
protect test instruments
However, the use of isolation transformer will help to
protect test instruments
2) Adjustment must be done in the correct sequence.
3) The adjustment must be performed at 25±5°C temperature
3) The adjustment must be performed at 25±5°C temperature
and 65±10% relative humidity if there is no specified
designation.
designation.
4) The input voltage of the receiver must be kept between
100-220V~, 50/60Hz.
5) Before adjustment, execute Heat-Run for 30 minutes at RF
no signal.
3. Channel Memory
3.1. Setting up the LGIDS
1) Press ADJ key in Adjust remote control.
2) Select “Channel Recover” by using
2) Select “Channel Recover” by using
D
/
E
(CH+/-) key, and
press
G
(VOL+).
3) When Channel Recover is completed, set will be turned off
and LED light go to stand-by mode.
4. EDID
* Caution
1) Use the proper signal cable for EDID Download
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
- Digital EDID : Pin3 exists
2) Never connect HDMI & D-sub Cable at the same time.
3) Use the proper cables below for EDID Writing.
3) Use the proper cables below for EDID Writing.
4.1. EDID Data
4.2. Data
(1) ANALOG (128 bytes)
(2) HDMI 1 (256 bytes)=>
=> Detail EDID Options are below (a, b, c, d, e-1, e-2)
(a) Product ID
(b) Serial No: Controlled on production line.
(c) Month, Year: Controlled on production line:
(b) Serial No: Controlled on production line.
(c) Month, Year: Controlled on production line:
ex) Monthly : ‘09’ -> ‘09’
Year : ‘2006’ -> ‘10’
(d) Model Name(Hex):
(e-1, e-2, f) Checksum: Changeable by total EDID data.
(e-1, e-2, f) Checksum: Changeable by total EDID data.
D-sub to D-sub
DVI-D to HDMI or HDMI or HDMI
For HDMI EDID
For Analog EDID
Item
Manufacturer ID
Version
Revision
Condition
GSM
Digital : 1
Digital : 3
Data(Hex)
1E6D
01
03
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
(a)
(b)
0x01
(c)
01
03
08
2F
1E
78
0A
AE
C5
A2
57
4A
9C
25
0x02 12
50
54
A5
6E
00
81
80
95
00
D1
C0
01
01
01
01
0x03 01
01
01
01
01
01
7C
2E
90
A0
60
1A
1E
40
30
20
0x04 36
00
D9
28
11
00
00
1C
21
39
90
30
62
1A
27
40
0x05 68
B0
36
00
D9
28
11
00
00
1C
00
00
00
FD
00
38
0x06 4B
1C
53
0F
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
32
32
4C
53
34
44
2D
5A
42
0A
20
20
20
00 (e-2)
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F
0x00 00
FF
FF
FF
FF
FF
FF
00
1E
6D
(a)
(b)
0x01
(c)
01
03
80
2F
1E
78
0A
AE
C5
A2
57
4A
9C
25
0x02 12
50
54
A5
6E
00
81
80
95
00
D1
C0
01
01
01
01
0x03 01
01
01
01
01
01
7C
2E
90
A0
60
1A
1E
40
30
20
0x04 36
00
D9
28
11
00
00
1C
21
39
90
30
62
1A
27
40
0x05 68
B0
36
00
D9
28
11
00
00
1C
00
00
00
FD
00
38
0x06 4B
1C
53
0F
00
0A
20
20
20
20
20
20
00
00
00
FC
0x07 00
32
32
4C
53
34
44
2D
5A
42
0A
20
20
20
01 (e-2)
0x00 02
03
21
F1
4E
81
02
03
15
12
13
04
14
05
20
21
0x01 22
1F
10
23
09
07
07
83
01
00
00
65
03
0C
00
10
0x02 00
01
1D
00
80
51
D0
1C
20
40
80
35
00
BC
88
21
0x03 00
00
1E
8C
0A
D0
8A
20
E0
2D
10
10
3E
96
00
13
0x04 8E
21
00
00
18
02
3A
80
18
71
38
2D
40
58
2C
45
0x05 00
06
44
21
00
00
1E
01
1D
80
18
71
1C
16
20
58
0x06 2C
25
00
C4
8E
21
00
00
9E
4E
1F
00
80
51
00
1E
0x07 30
40
80
37
00
BC
88
21
00
00
18
00
00
00
00
(f)
* Before AV ADC Calibration, should be executed the “Tool option 1”
5. Select method of Tool option 1
1) Press ADJ Key in the Adjust remote control.
2) Select “Tool option 1” by using
2) Select “Tool option 1” by using
D
/
E
(CH+/-) key, and press
A
(ENTER).
3)Select “Maker” by using
D
/
E
(CH+/-) key, and change the
module maker and. applied module classification by using
F
/
G
(VOL+/-).
4) Select “Inch” by using
D
/
E
(CH+/-) key, and change the
module according to the inch of model.
5) Select “Tool” by using
D
/
E
(CH+/-) key, and change the
tool name according to the model.
(Inch of model : 26”, 32”, 37”, 42”, Applied module under the
classification)
classification)
6) After changing Tool option 1, push the EXIT key.
6. ADC Calibration
<Caution>
- System control RS-232 Host should be “PC” for adjustment.
- Before AV ADC Calibration, execute the “Module selection”.
- System control RS-232 Host should be “PC” for adjustment.
- Before AV ADC Calibration, execute the “Module selection”.
6.1. Adjustment of RF/AV/S-VIDEO
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925FS Pattern Generator (Which has Video
- MSPG-925FS Pattern Generator (Which has Video
Signal: 7 Color Bar Pattern shown in Fig. 1)
=> Model: 202 / Pattern: 65
=> Model: 202 / Pattern: 65
(2) Method of Auto RF/AV/S-VIDEO Color Balance.
1) Input the Video Signal : 7 Color Bar signal into AV1 or
AV2.
2) Set the PSM to Dynamic mode in the Picture menu.
3) Press IN-START key on R/C for adjustment.
4) Press the
3) Press IN-START key on R/C for adjustment.
4) Press the
G
(Vol.+) key to operate the set, then it
becomes automatically.
5) Auto-RGB OK means the adjustment is completed.
6.2. Adjustment of Component
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925FS Pattern Generator (Which has 720p/50Hz
- MSPG-925FS Pattern Generator (Which has 720p/50Hz
YPbPr output Pattern shown in Fig.1)
=> Model:215/Pattern: 65
=> Model:215/Pattern: 65
(2) Method of Auto Component Color Balance
1) Input the Component 720p/50Hz 7 Color Bar(MSPG-
925FS model:215, pattern:65) signal into Component.
2) Set the PSM to Dynamic mode in the Picture menu
3) Press the IN-START key on R/C for adjustment.
4) Press the
3) Press the IN-START key on R/C for adjustment.
4) Press the
G
(Vol.+) key to operate the set , then it
becomes automatically.
5) Auto-RGB OK means the adjustment is completed.
6.3 Adjustment of RGB
(1) Required Equipments
- Remote controller for adjustment
- MSPG-925F Pattern Generator
- MSPG-925F Pattern Generator
(Which has XGA [1024*768] 60Hz 8 Color Bar 100%
pattern shown in Fig.1)
pattern shown in Fig.1)
(2) Method of Auto RGB Color Balance
1) Input the PC 1024x768@60Hz 100% Color Bar pattern
(MSPG-925F model:37, pattern:33) into RGB.
(Using D-sub to D-sub cable)
(Using D-sub to D-sub cable)
2) Set the PSM to Dynamic mode in Picture menu.
3) Press the IN-START key on R/C for adjustment
4) Press the
3) Press the IN-START key on R/C for adjustment
4) Press the
G
(Vol.+) key operate To set , then it becomes
automatically.
5) Auto-RGB OK means adjustment is completed.
- 11 -
ADC
RF/AV/S-VIDEO
Component
RGB-PC
MSPG925FS PALJ
Model:215 (720P)
Model: 60
INPUT SELECT AV2
Pattern:65
(1024*768 60Hz)
Model: 202 (PAL-BGDHI)
720P/50Hz
Pattern: 65
Pattern: 65
7 Color Bar
PAL 7 Color Bar
<Fig. 1>
- 12 -
* Before White-balance, the AV ADC should be done.
7. White Balance
* Test Equipment
Color Analyzer (CA-210/CH.9)
-> When you adjust LCD color temperature, on Color
analyzer (CA-210), you should use Channel 9 which is
Matrix compensated (White, Red, Green, Blue revised) by
CS-1000 and adjust in accordance with White balance
adjustment coordinate which is specified on the next.
-> When you adjust LCD color temperature, on Color
analyzer (CA-210), you should use Channel 9 which is
Matrix compensated (White, Red, Green, Blue revised) by
CS-1000 and adjust in accordance with White balance
adjustment coordinate which is specified on the next.
* Color temperature standards according to CSM and Module
Cool : 11,000k
Medium : 9,300k
Warm : 6,500k
Medium : 9,300k
Warm : 6,500k
* White balance adjustment coordinate and color temperature
- PC (for communication through RS-232C)
-> UART Baud rate : 115200 bps
- Luminance Y AV : upper 100 cd/m
2
(Typ : 250 cd/m
2
)
-> Applying to Cool, Medium, Warm mode
* Connecting picture of the measuring instrument (On
Automatic control )
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push control R/C IN-START
-> Enter the mode of White-Balance, the pattern will come
out.
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push control R/C IN-START
-> Enter the mode of White-Balance, the pattern will come
out.
* Auto adjustment Map (RS-232C)
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10ux).
2) Adhere closely the Color Analyzer ( CA-210 ) to the
module less than 10cm distance, keep it with the surface
of the Module and Color Analyzer’s Prove
vertically.(80~100°).
of the Module and Color Analyzer’s Prove
vertically.(80~100°).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others,
check the back light on.
7.1. Auto white Balance
(Set:RS-232, Host:PC, Baud Rate:115200bps, Download:Cortez)
Inside pattern is used when balance is controlled.
Connect as below figure and click the start button on W/B
execution program.
W/B is automatically processing Cool --> Medium --> Warm in
order.
When W/B is completed, you can see ‘OK’ on PC monitor.
Connect as below figure and click the start button on W/B
execution program.
W/B is automatically processing Cool --> Medium --> Warm in
order.
When W/B is completed, you can see ‘OK’ on PC monitor.
Type
LD73B
Baud Rate
Data bit
Stop bit
Parity
115200
8
1
None
Index
Cmd 1 Cmd 2 Data Min Value Max Value
R-Gain_Normal
j
a
00(00)
128(80)
G-Gain_Normal
j
b
00(00)
128(80)
B-Gain_Normal
j
c
00(00)
128(80)
R-Gain_Warm
j
d
00(00)
128(80)
G-Gain_Warm
j
e
00(00)
128(80)
B-Gain_Warm
j
f
00(00)
128(80)
R-Gain_Cool
j
g
00(00)
128(80)
G-Gain_Cool
j
h
00(00)
128(80)
B-Gain_Cool
j
i
00(00)
128(80)
R-Offset_Normal
l
j
00(00)
128(80)
G-Offset_Normal
l
k
00(00)
128(80)
B-Offset_Normal
l
l
00(00)
128(80)
R-Offset_Warm
l
m
00(00)
128(80)
G-Offset_Warm
l
n
00(00)
128(80)
B-Offset_Warm
l
o
00(00)
128(80)
R-Offset_Cool
l
p
00(00)
128(80)
G-Offset_Cool
l
q
00(00)
128(80)
B-Offset_Cool
l
r
00(00)
128(80)
w
b
00
Starting W/B ADJ
w
b
10
Using internal Pattern
w
b
ff
Ending W/B ADJ
Cool
CS-1000
CA-210(CH 9)
x
0.276
0.276±0.002
y
0.283
0.283±0.002
Δuv
0.000
0.000
Medium
CS-1000
CA-210(CH 9)
x
0.285
0.285±0.002
y
0.293
0.293±0.002
Δuv
0.000
0.000
Warm
CS-1000
CA-210(CH 9)
x
0.313
0.313±0.002
y
0.329
0.329±0.002
Δuv
0.004
0.004
<Fig. 2> Connecting picture (On Automatic Control)
Click on the first or last page to see other 22LS4D (CHASSIS:LD73B / NF036A) service manuals if exist.