DOWNLOAD LG 65LM620S-ZB / 65LM620T-ZB (CHASSIS:LD22E) Service Manual ↓ Size: 10.53 MB | Pages: 118 in PDF or view online for FREE

Model
65LM620S-ZB 65LM620T-ZB (CHASSIS:LD22E)
Pages
118
Size
10.53 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
65lm620s-zb-65lm620t-zb-chassis-ld22e.pdf
Date

LG 65LM620S-ZB / 65LM620T-ZB (CHASSIS:LD22E) Service Manual ▷ View online

- 11 -
3.2.  MAC address D/L, CI+ key D/L, Widevine 
key D/L, ESN 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
▪. Play: START
▪. Result: Ready, Test, OK or NG
▪. Printer Out (MAC Address Label)
3.3. LAN
3.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.3.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Network setting at MENU Mode of TV
▪ Setting automatic IP
▪ Setting state confirmation
→  If automatic setting is finished, you confirm IP and MAC 
Address.
3.3.3. WIDEVINE key Inspection
- Confirm key input data at the "IN START" MENU Mode.
3.4. LAN PORT INSPECTION(PING TEST)
Connect SET → LAN port == PC → LAN Port
3.4.1. 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
3.4.2. 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.
Play: Start
 
G
SET
PC
- 12 -
3.5. Model name & Serial number Download
3.5.1. Model name & Serial number D/L
 Press "Power on" key of service remote control.
(Baud rate : 115200 bps)
 Connect RS232 Signal Cable to RS-232 Jack.
 Write Serial number by use RS-232.
 Must check the serial number at Instart menu.
3.5.2. 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 "5.Model Number D/L" like below photo.
3)  Input  the  Factory  model  name(ex  47LM760S-ZB-A)  or 
Serial number like photo.
4)  Check  the  model  name  Instart  menu.  →  Factory  name 
displayed. (ex 47LM760S-ZB)
5)  Check  the  Diagnostics.(DTV  country  only)  →  Buyer 
model displayed. (ex 47LM760S-ZB)
3.6. CI+ Key checking method
- Check the Section 3.2
Check  whether  the  key  was  downloaded  or  not  at  ‘In  Start’ 
menu. (Refer to below).
=> Check the Download to CI+ Key value in LGset.
3.6.1. 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
3.6.2. 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
3.7. WIFI MAC ADDRESS CHECK
(1) Using RS232
(2) Check the menu on in-start.
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
H-freq(kHz)
V-freq.(Hz)
Transmission
[A][I][][Set ID][][20][Cr]
[O][K][X] or [NG]
- 13 -
4. Manual Adjustment
*  ADC  adjustment  is  not  needed  because  of  OTP(Auto ADC 
adjustment)
4.1  EDID(The  Extended  Display  Identification 
Data)/DDC(Display Data Channel) download
4.1.1. 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".
4.1.2. Equipment
-  Since  embedded  EDID  data  is  used,  EDID  download  JIG, 
HDMI cable and D-sub cable are not need.
- Adjustment remote control
4.1.3. Download method
(1)  Press  "ADJ"  key  on  the Adjustment  remote  control  then 
select "10.EDID D/L", By pressing "Enter" key, enter EDID 
D/L menu.
(2)  Select  "Start"  button  by  pressing  "Enter"  key,  HDMI1/ 
HDMI2/ HDMI3/ HDMI4/ RGB are writing and display OK 
or NG.
4.1.4. EDID DATA
(1) 3D EDID DATA
▪ 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) Week : '01' -> '01'
Year : '2012' -> '16' fix
. Model Name(Hex): LGTV
. Checksum: Changeable by total EDID data.
. Vendor Specific(HDMI)
1) Deep color (module 10bit)
2) None deep color (module 8bit)
 Colorimetry Data Block(HDMI)
- The Model supporting XvYcc(LM7600) 
For Analog
For HDMI EDID
D-sub to D-sub
DVI-D to HDMI or HDMI to HDMI
HEX
EDID Table
DDC Function
0001
01 00
Analog/Digital
Chassis
MODEL NAME(HEX)
LD22E
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 
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
HDMI4 78 03 0C 00 40 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 78 03 0C 00 10 00 80 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 80 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 80 2D 20 C0 0E 01 4F 3F FC 08 10 18 10 06 10 16 10 28 10
HDMI4 78 03 0C 00 40 00 80 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
HDMI4
E3 05 03 01
1
2
10 bit/ 
Xvycc
2
8 bit/ 
Xvycc
2
10 bit/
none XvYcc
2
8 bit/
none XvYcc
3
HDMI1
43
11
49
15
4D
X
HDMI2
43
01
39
05
3D
X
HDMI3
43
F1
29
F5
2D
X
HDMI4
43
E1
19
E5
1D
X
RGB
X
X
X
X
X
5C
- 14 -
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) Warm-up time: About 5 Min
3) 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/204-Gray
(Model: 217, Pattern: 49)
-> Only when internal pattern is not available
▪ Color Analyzer Matrix should be calibrated using CS-100.
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
4.2.5. Adj. method
(1) Auto adj. method
1) Set TV in adj. mode using P-Only key.
2)  Zero  calibrate  probe  then  place  it  on  the  center  of  the 
Display.
3) Connect Cable.(RS-232C to USB)
4) Select mode in adj. Program and begin adj.
5)  When adj. is complete (OK Sign), check adj. status pre 
mode. (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
▪  W/B Adj. must begin as start command “wb 00 00” , and 
finish as end command “wb 00 ff”, and Adj. offset if need.
(2) Manual adjustment. method
1) Set TV in Adj. mode using P-Only key.
2)  Zero Calibrate the probe of Color Analyzer, then place it 
on the center of LCD module within 10 cm of the surface.
3)  Press ADJ key → EZ adjust using adj. R/C → 7. White-
Balance then press the cursor to the right(key ►).
(When right key(►) is pressed 216 Gray 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)  Adjustment  is  performed  in  COOL,  MEDIUM,  WARM  3 
modes of color temperature.
 ▪  If  internal  pattern  is  not  available,  use  RF  input.  In  EZ 
Adj.  menu  7.White  Balance,  you  can  select  one  of  2 
Test-pattern: ON, OFF. Default is inner(ON). By selecting 
OFF, you can adjust using RF signal in 216 Gray pattern.
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
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
Warm
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
R Cut
G Cut
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