LG 32LN5300 / 32LN5310 / 32LN536B (CHASSIS:LA32B) Service Manual ▷ View online
- 10 -
4.1. ADC Adjustment
4.1.1. Overview
▪ ADC adjustment is needed to find the optimum black level
and gain in Analog-to-Digital device and to compensate RGB
deviation.
▪ ADC adjustment is OTP (Auto ADC)
4.2. EDID Download
4.2.1. Overview
▪ It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
4.2.2. Equipment
(1) Since EDID data is embedded, EDID download JIG, HDMI
cable is not need.
(2) Adjust by using remote controller
4.2.3. Download method (using DFT)
※
PC(for communication through RS-232C), UART baud rate:
115200 bps
Command : aa 00 00 (Start Factory mode)
Command : ae 00 10 (Download All EDID)
Command : aa 00 90 (End of Factory mode)
4.2.4. Download method (using Service Remocon)
(1) Press Adj. key on the Adj. R/C.
(2) Select EDID D/L menu.
(3) By pressing Enter key, EDID download will begin
(4) If Download is successful, OK is display, but If Download is
failure, NG is displayed.
(5) If Download is failure, Re-try downloads.
※
※
Caution : When EDID Download, must remove HDMI
Cable.
(6) EDID Write confirmation
4.2.5. EDID DATA
4.2.5.1.1. FHD Model
■ HDMI 1-FHD-8BIT (C/S : E808)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 19 F1 48 90 22 20 05 04 03 02 01 23 09 57
10 | 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 71 38 2D
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
■ HDMI 2-FHD-8BIT (C/S : E8F8)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 19 F1 48 90 22 20 05 04 03 02 01 23 09 57
10 | 07 67 03 0C 00 20 00 80 1E 02 3A 80 18 71 38 2D
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F8
EDID D/L (PCM)
HDMI1 : OK
HDMI2 : OK
- 11 -
4.2.5.1.2. HD Model
■ HDMI 1-HD (C/S : 7008)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 19 F1 48 10 22 20 05 84 03 02 01 23 09 57
10 | 07 67 03 0C 00 10 00 80 1E 02 3A 80 18 71 38 2D
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
■ HDMI 2-HD (C/S : 70F8)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 19 F1 48 10 22 20 05 84 03 02 01 23 09 57
10 | 07 67 03 0C 00 20 00 80 1E 02 3A 80 18 71 38 2D
20 | 40 58 2C 04 05 40 84 63 00 00 1E 01 1D 80 18 71
30 | 1C 16 20 58 2C 25 00 40 84 63 00 00 9E 01 1D 00
40 | 72 51 D0 1E 20 6E 28 55 00 40 84 63 00 00 1E 8C
50 | 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84 63 00 00
60 | 18 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F8
4.2.5.2. AC3 EDID Data
4.2.5.2.1. FHD Model
■ HDMI 1-FHD-8BIT (C/S : E896)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 1C F1 48 90 22 20 05 04 03 02 01 26 15 07
10 | 50 09 57 07 67 03 0C 00 10 00 80 1E 02 3A 80 18
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96
■ HDMI 2-FHD-8BIT (C/S : E886)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 81 80
30 | 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C
40 | 45 00 40 84 63 00 00 1E 66 21 50 B0 51 00 1B 30
50 | 40 70 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 E8
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 1C F1 48 90 22 20 05 04 03 02 01 26 15 07
10 | 50 09 57 07 67 03 0C 00 20 00 80 1E 02 3A 80 18
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86
- 12 -
4.2.5.2.2. HD Model
■ HDMI 1-HD (C/S : 7096)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 1C F1 48 10 22 20 05 84 03 02 01 26 15 07
10 | 50 09 57 07 67 03 0C 00 10 00 80 1E 02 3A 80 18
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 96
■ HDMI 2-HD (C/S : 7086)
EDID Block 0, Bytes 0-127 [00H-7FH]
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 17 01 03 80 A0 5A 78 0A EE 91 A3 54 4C 99 26
20 | 0F 50 54 A1 08 00 31 40 45 40 61 40 71 40 01 01
30 | 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70
40 | 36 00 40 84 63 00 00 1E 64 19 00 40 41 00 26 30
50 | 18 88 36 00 40 84 63 00 00 1E 00 00 00 FD 00 3A
60 | 3E 1E 53 10 00 0A 20 20 20 20 20 20 00 00 00 FC
70 | 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 70
EDID Block 1, Bytes 128-255 [80H-FFH]
0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------------------------------
0 | 02 03 1C F1 48 10 22 20 05 84 03 02 01 26 15 07
10 | 50 09 57 07 67 03 0C 00 20 00 80 1E 02 3A 80 18
20 | 71 38 2D 40 58 2C 04 05 40 84 63 00 00 1E 01 1D
30 | 80 18 71 1C 16 20 58 2C 25 00 40 84 63 00 00 9E
40 | 01 1D 00 72 51 D0 1E 20 6E 28 55 00 40 84 63 00
50 | 00 1E 8C 0A D0 8A 20 E0 2D 10 10 3E 96 00 40 84
60 | 63 00 00 18 00 00 00 00 00 00 00 00 00 00 00 00
70 | 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 86
4.3. Tool Option Input
- Input Model Tool Option according to BOM
5. Final Assembly Adjustment
5.1. White Balance Adjustment
5.1.1. Overview
5.1.1.1. W/B adj. Objective & How-it-works
(1) Objective: To reduce each Panel’s W/B deviation
(2) How-it-works: When R/G/B gain in the OSD is at 192, it
means the panel is at its Full Dynamic Range. In order to
prevent saturation of Full Dynamic range and data, one of
R/G/B is fixed at 192, and the other two is lowered to find
the desired value.
(3) Adj. condition: normal temperature
- Surrounding Temperature: 25±5 ºC
- Warm-up time: About 5 Min
- Surrounding Humidity: 20% ~ 80%
- Before White balance adjustment, Keep power on status,
don’t power off
5.1.1.2. Adj. condition and cautionary items
(1) Lighting condition in surrounding area surrounding lighting
should be lower 10 lux. Try to isolate adj. area into dark
surrounding.
(2) Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°)
(3) Aging time
- After Aging Start, Keep the Power ON status during 5
Minutes.
- In case of LCD, Back-light on should be checked using no
signal or Full-white pattern.
5.1.2. Equipment
(1) Color Analyzer: CA-210 (NCG: CH 9 / WCG: CH12 / LED:
CH14)
(2) Adj. Computer(During auto adj., RS-232C protocol is
needed)
(3) Adjust Remocon
(4) Video Signal Generator MSPG-925F 720p/204-Gray
(Model:217, Pattern:49)
→ Only when internal pattern is not available
※ Color Analyzer Matrix should be calibrated using
CS-1000
- 13 -
5.1.3. Equipment connection
5.1.4. Adjustment Command (Protocol)
(1) RS-232C Command used during auto-adj
RS-232C COMMAND
Explanation
CMD
DATA
ID
Wb
00
00
Begin White Balance adj.
Wb
00
ff
End White Balance adj.
(internal pattern disappears )
(2) Adjustment Map
Adj. item
Command
(lower case ASCII)
Data Range
(Hex.)
Default
(Decimal)
CMD1
CMD2
MIN
MAX
Cool
R Gain
j
g
00
C0
172
G Gain
j
h
00
C0
172
B Gain
j
i
00
C0
192
R Cut
128
G Cut
128
B Cut
128
Medium
R Gain
j
a
00
C0
192
G Gain
j
b
00
C0
192
B Gain
j
c
00
C0
192
R Cut
128
G Cut
128
B Cut
128
Warm
R Gain
j
d
00
C0
192
G Gain
j
e
00
C0
192
B Gain
j
f
00
C0
172
R Cut
128
G Cut
128
B Cut
128
5.1.5. Adjustment method
5.1.5.1. Auto WB calibration
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
※
※
W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need.
5.1.5.2. Manual adj. method
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on
the center of LCD module within 10cm of the surface..
(3) Press ADJ key -> EZ adjust using adj. R/C -> 6. White-
Balance then press the cursor to the right (KEY►).
(When KEY(►) is pressed 204 Gray(80IRE) internal
pattern will be displayed)
(4) One of R Gain / G Gain / B Gain should be fixed at 192,
and the rest will be lowered to meet the desired value.
(5) Adj. is performed in COOL, MEDIUM, WARM 3 modes of
color temperature.
※
CASE
First adjust the coordinate far away from the target value(x, y).
(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.
(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
(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
► How to adjust
(1) Fix G gain at least 172
Adjust R, B Gain (In Case of Mostly Blue Gain Saturation)
(2) When R or B Gain > 255, Release Fixed G Gain and
Readjust
※
CASE Medium / Warm
First adjust the coordinate far away from the target value(x, y).
(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.
(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
(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
Color Analyzer
Computer
Pattern Generator
※
Signal Source
Probe
RS-232C
RS-232C
RS-232C
※
If TV internal pattern is used, not needed
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