LG 55LA69XX / 55LA6908 / 55LA6918 / 55LA6928 / 55LA690S / 55LA690V / 55LA691S / 55LA691V (CHASSIS:LD33B) Service Manual ▷ View online
- 13 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LED TV with
LD33B chassis.
2. Designation
(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 protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
In case of keeping module is in the circumstance of 0 °C, it
should be placed in the circumstance of above 15 °C for 2
hours.
In case of keeping module is in the circumstance of below
-20 °C, it should be placed in the circumstance of above 15
°C for 3 hours.
[Caution]
When still image is displayed for a period of 20 minutes or
longer (Especially where W/B scale is strong. Digital pattern
13ch and/or Cross hatch pattern 09ch), there can some
afterimage in the black level area.
3. Automatic Adjustment
3.1. MAC address D/L, CI+ key D/L, Widevine
key D/L, ESN D/L, HDCP14/20 D/L
Connect: USB port
Communication Prot connection
▪ Com 1,2,3,4 and 115200(Baudrate)
Mode check: Online Only
▪ Check the test process: DETECT -> MAC -> CI -> Widevine
-> ESN -> HDCP14 -> HDCP20
▪ Play: Press Enter key
▪ Result: Ready, Test, OK or NG
▪ Printer Out (MAC Address Label)
3.2. LAN Inspection
3.2.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.2.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Setting automatic IP
▪ If you want manual connection, enter Network connection at
MENU Mode of TV. Press Start connection key, then
Network will be connected.
▪ Setting state confirmation
- If automatic setting is finished, you confirm IP and MAC
Address at ‘in start’ menu mode.
- 14 -
3.2.3. WIDEVINE key Inspection
- Confirm key input data at the "IN START" MENU Mode.
3.3. LAN PORT INSPECTION(PING TEST)
Connect SET → LAN port == PC → LAN Port
3.3.1. Equipment setting
(1) Play the LAN Port Test PROGRAM.
(2) Input IP set up for an inspection to Test Program.
*IP Number : 12.12.2.2
3.3.2. LAN PORT inspection(PING TEST)
(1) Play the LAN Port Test Program.
(2) Connect each other LAN Port Jack.
(3) Play Test (F9) button and confirm OK Message.
(4) Remove LAN cable.
3.4. Model name & Serial number Download
3.4.1. Model name & Serial number D/L
▪
Press "P-ONLY" key of service remote control.
(Baud rate : 115200 bps)
▪
Connect RS-232C Signal to USB Cable to USB.
▪
Write Serial number by use USB port.
▪
Must check the serial number at Instart menu.
3.4.2. Method & notice
(1) Serial number D/L is using of scan equipment.
(2) Setting of scan equipment operated by Manufacturing
Technology Group.
(3) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.
* Manual Download (Model Name and Serial Number)
If the TV set is downloaded by OTA or service man, sometimes
model name or serial number is initialized.(Not always)
It is impossible to download by bar code scan, so It need
Manual download.
1) Press the "Instart" key of Adjustment remote control.
2) Go to the menu "7.Model Number D/L" like below photo.
3) Input the Factory model name(ex 42LA690V-ZA) or Serial
number like photo.
4) Check the model name Instart menu. → Factory name
displayed. (ex 42LA690V-ZA)
5) Check the Diagnostics.(DTV country only) → Buyer
model displayed. (ex 42LA690V-ZA)
3.5. CI+ Key checking method
- Check the Section 3.1
Check whether the key was downloaded or not at ‘In Start’
menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset.
SET
PC
- 15 -
3.5.1. Check the method of CI+ Key value
(1) Check the method on Instart menu
(2) Check the method of RS232C Command
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the key download for transmitted command
(RS232: ci 00 10)
3) Result value
- Normally status for download : OKx
- Abnormally status for download : NGx
3.5.2. Check the method of CI+ key value(RS232)
1) Into the main ass’y mode(RS232: aa 00 00)
2) Check the mothed of CI+ key by command
(RS232: ci 00 20)
3) Result value
i 01 OK 1d1852d21c1ed5dcx
3.6. WIFI MAC ADDRESS CHECK
(1) Using RS232 Command
(2) Check the menu on in-start
4. Manual Adjustment
* ADC adjustment is not needed because of OTP(Auto ADC
adjustment)
4.1. EDID DATA
4.1.1. 3D EDID
▪ Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or
Input mode.
ⓐ
Product ID
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’
Year : ‘2013’ → ‘17’
ⓓ
ⓓ
Model Name(Hex): LGTV
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓕ
Vendor Specific(HDMI)
1) Deep color (module 10bit)
2) None deep color (module 8bit)
ⓖ
Colorimetry Data Block(HDMI)
1) The Model not supporting XvYcc
H-freq(kHz)
V-freq.(Hz)
Transmission
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
1
0
CMD 1
CMD 2
Data 0
A
A
0
0
CMD 1
CMD 2
Data 0
C
I
2
0
CI+ Key Value
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
Chassis
MODEL NAME(HEX)
LD33B
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
1
ⓔ
2
ⓔ
2
ⓔ
3
10bit
/none XvYcc
8bit
/none XvYcc
HDMI1
E8
85
CC
X
HDMI2
E8
75
BC
X
HDMI3
E8
65
AC
X
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 B8 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
INPUT
MODEL NAME(HEX)
HDMI1
E3 05 00 00
HDMI2
E3 05 00 00
HDMI3
E3 05 00 00
INPUT
MODEL NAME(HEX)
HDMI1 78 03 0C 00 10 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI2 78 03 0C 00 20 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI3 78 03 0C 00 30 00 80 1E 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
- 16 -
4.1.2. 2D EDID
▪ Reference
- HDMI1 ~ HDMI4 / RGB
- In the data of EDID, bellows may be different by S/W or
Input mode.
ⓐ
Product ID
ⓑ
Serial No: Controlled on production line.
ⓒ
Month, Year: Controlled on production line:
ex) Monthly : ‘01’ → ‘01’
Year : ‘2012’ → ‘16’
ⓓ
ⓓ
Model Name(Hex): LGTV
ⓔ
Checksum(LG TV): Changeable by total EDID data.
ⓕ
Vendor Specific(HDMI)
4.2. White Balance Adjustment
4.2.1. Overview
▪ 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) Adjustment condition : normal temperature
1) Surrounding Temperature : 25 °C ± 5 °C
2) Surrounding Humidity : 20 % ~ 80 %
4.2.2. Equipment
(1) Color Analyzer: CA-210 (LED Module : CH 14)
(2) Adjustment Computer(During auto adj., RS-232C protocol
is needed)
(3) Adjustment Remote control
(4) Video Signal Generator MSPG-925F 720p/216-Gray
(Model: 217, Pattern: 78)
→ Only when internal pattern is not available
▪ Color Analyzer Matrix should be calibrated using CS-1000.
4.2.3. Equipment connection MAP
4.2.4. Adj. Command (Protocol)
<Command Format>
- LEN: Number of Data Byte to be sent
- CMD: Command
- VAL: FOS Data value
- CS: Checksum of sent data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
▪ RS-232C Command used during auto-adjustment.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f → Gain adj. completed
*(wb 00 20(Start), wb 00 2f(end)) → Off-set adj.
wb 00 ff → End white balance auto-adj.
▪ Adj. Map
Applied Model : LD33B Chassis ALL MODELS
HEX
EDID Table
DDC Function
0001
0100
Analog
0001
0100
Digital
Chassis
MODEL NAME(HEX)
LD33B
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
ⓔ
1
ⓔ
2
ⓔ
3
HDMI1
43
15
X
HDMI2
43
05
X
HDMI3
43
F5
X
INPUT
MODEL NAME(HEX)
HDMI1
67 03 0C 00 10 00 80 2D
HDMI2
67 03 0C 00 20 00 80 2D
HDMI3
67 03 0C 00 30 00 80 2D
START 6E A 50 A LEN A 03 A CMD
A
00
A VAL A
CS STOP
Color Analyzer
Computer
Pattern Generator
RS-232C
RS-232C
RS-232C
Probe
Signal Source
* If TV internal pattern is used, not needed
RS-232C COMMAND
[CMD
ID
DATA]
Explantion
wb
00
00
Begin White Balance adjustment
wb
00
10
Gain adjustment(internal white pattern)
wb
00
1f
Gain adjustment completed
wb
00
20
Offset adjustment(internal white pattern)
wb
00
2f
Offset adjustment completed
wb
00
ff
End White Balance adjustment
(internal pattern disappears )
Adj. item
Command
(lower caseASCII)
Data Range
(Hex.)
Default
(Decimal)
CMD1
CMD2
MIN
MAX
Cool
R Gain
j
g
00
C0
G Gain
j
h
00
C0
B Gain
j
i
00
C0
R Cut
G Cut
B Cut
G Cut
B Cut
Medium
R Gain
j
a
00
C0
G Gain
j
b
00
C0
B Gain
j
c
00
C0
R Cut
G Cut
B Cut
G Cut
B Cut
Warm
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
R Cut
G Cut
G Cut
Click on the first or last page to see other 55LA69XX / 55LA6908 / 55LA6918 / 55LA6928 / 55LA690S / 55LA690V / 55LA691S / 55LA691V (CHASSIS:LD33B) service manuals if exist.