LG 55EA9800-SA (CHASSIS:EJ34D) Service Manual ▷ View online
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No.
Side by Side
Top & Bottom
Checkerboard
Single Frame
Sequential
Frame Packing
Line
Interleaving
Column
Interleaving
1
R
L
R
LLLLL
L
R
L
5.2.9. Miracast, Widi (3D supported mode manually)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Remark
1
1024X768p
30 / 60
2D to 3D, Side by Side(Half),
Top & Bottom
2
1280x720p
30 / 60
3
1920X1080p
30 / 60
4
Others
2D to 3D
●
REMARk: 3D INPUT MODE
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ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied all of the EJ34D OLED TV
models, which produced in manufacture department or similar
LG TV factory
2. Designation
(1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan whic al Unit: Product Specification Standard.
(2) Power adjustment : Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation: Above 5 Minutes (Heat Run).
Temperature : at 25 ºC±5 ºC
Relative humidity : 65 ± 10%
Input voltage : 100~220V, 50/60Hz
(6) Adjustment equipments : Color Analyzer (CA-210 or
CA-110), SVC remote controller
(7) Push The “IN STOP KEY” – For memory initialization.
3. Main PCB check process
3.1. Main PCBA Adjustments
(1) ADC adjustment: Component 480i, 1080p / RGB-PC 1080p
(2) EDID downloads for HDMI and RGB-PC
(3) MAC Address / ESN / Widevine Download
※ Remark
- Above adjustment items can be also performed in Final
Assembly if needed. Adjustment items in both PCBA and
final assembly stages can be checked by using the INSTART
Menu → 1.ADJUST CHECK
3.2. Final Assembly adjustment
(1) White Balance adjustment
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (IN-STOP)
(5) GND and HI-POT test
* After downloading, have to adjust TOOL OPTION again.
(1) Push "IN-START" key in service remote controller.
(2) Select "Tool Option 1" and Push “OK” button.
(3) Punch in the number. (Each of models has their number.)
[See the BOM]
(4) Completed selecting Tool option.
● Tool option
Model
Module
Tool
option1
Tool
option2
Tool
option3
Tool
option4
Tool
option5
Tool
option6
Tool
option7
55EA9800-SA
LGD
32791
54561
5821
37085
39062
1359
47243
3.3. ADC Process
ADC calibration is not necessary because MAIN SoC
(LGExxxx) is already calibrated from IC Maker
3.3.2. Manual ADC Calibration
3.3.2.1. Equipment & Condition
(1) Adjustment Remocon
(2) 801GF (802B, 802F, 802R) or MSPG925FA Pattern
Generator
- Resolution: 480i Comp1 (MSPG-925FA: model-209,
pattern-65)
- Resolution: 1080p Comp1 (MSPG-925FA: model-225,
pattern-65)
- Resolution : 1080p RGB (MSPG-925FA: model-225,
pattern-65)
- Pattern : Horizontal 100% Color Bar Pattern
- Pattern level: 0.7±0.1 Vp-p
3.3.2.2. Adjust method
▪ ADC 480i/1080p Comp
(1) Check connected condition of Comp cable to the
equipment
(2) Give a 480i Mode, Horizontal 100% Color Bar Pattern to
Comp1. (MSPG-925FA -> Model: 209, Pattern: 65)
(3) Change input mode as Component1 and picture mode as
“Standard”
(4) Press the In-start Key on the ADJ remote after at least 1
min of signal reception. Then, select 7.External ADC. And
Press OK or Right Button for going to sub menu.
(5) Press OK in Comp 480i menu
(6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern to
Comp1. (MSPG-925FA -> Model: 225, Pattern: 65)
(7) Press OK in Comp 1080p menu
(8) If ADC Comp is successful, “ADC Component Success” is
displayed.
(9) If ADC calibration is failure, “ADC Component Fail” is
displayed.
(10) If ADC calibration is failure, after rechecking ADC pattern
or condition, retry calibration
(11) If ADC calibration is failure, after recheck ADC pattern or
condition, retry calibration
Case1 : Software version up
1) After downloading S/W by USB , TV set will reboot
automatically
2) Push “In-stop” key
3) Push “Power on” key
4) Function inspection
5) After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1) When TV set is entering on the assembly line, Push
“In-stop” key at first.
2) Push “Power on” key for turning it on.
=> If you push “Power on” key, TV set will recover channel
information by itself.
3).After function inspection, Push “In-stop” key.
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3.4. Function Check
3.4.1. Check display and sound
■ Check Input and Signal items. (cf. work instructions)
(1) TV
(2) AV (CVBS)
(3) COMPONENT (480i)
(4) HDMI
* Display and Sound check is executed by Remote controller.
※
※
Caution : Not to push the INSTOP KEY after completion if
the function inspection.
3.5. EDID/DDC Download
3.5.1. 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
3.5.2. Equipment
▪ Adjust remocon.
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need
3.5.3. Download method
(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 RGB/HDMI
Cable
3.6. MAC Address, ESN key and Widevine
key download
3.6.1. Equipment & Condition
(1) Play file: keydownload.exe
3.6.2. Communication Port connection
(1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
(2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
3.6.3. Download process
(1) Select the download items.
(2) Mode check: Online Only
(3) Check the test process
- US, Canada models: DETECT → MAC_WRITE →
WIDEVINE_WRITE
- Korea, Mexico models: DETECT → MAC_WRITE →
WIDEVINE_WRITE
(4) Play: START
(5) Check of result: Ready, Test, OK or NG
3.6.4. Communication Port connection
(1) Connect: PCBA Jig→ RS-232C Port == PC → RS-232C
Port
3.7. LAN port Inspection (Ping Test)
3.7.1. LAN port Inspection (Ping Test)
(1) Play the LAN Port Test PROGRAM.
(2) Input IP set up for an inspection to Test Program
- IP number: 12.12.2.2
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3.7.2. 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
3.8. Camera Port Inspection
(1) Objective : To check PCBA’s CAMERA Port.
(2) How-it-works
i) Connect the PCBA like below Picture.
ii) Send specific RS-232C Command for displaying Camera
Preview.
* CAMERA need to be status of Slide up.
(3) RS-232C Command
RS-232C COMMAND
Explanation
CMD
DATA
ID
Ai
00
23
Camera Function Start.
Ai
00
24
Camera Function End.
4. Total Assembly line process
4.1. Adjustment Preparation
■ W/B Equipment condition
▪ 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.
- Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
- Principle : To adjust the white balance without the
saturation,Fix the one of R/G/B gain to 192 (default data) and
decrease the others.
- Adjustment mode : Three modes – Cool / Medium / Warm
● Required Equipment
- Remote controller for adjustment
- Color Analyzer : CA100+ or CA-210 or same product (should
be used in the calibrated ch by CS-1000)
▪ LCD TV : CH-9
▪ PDP TV : CH-10
▪ White LED TV : CH-14
▪ ALEF : CH-18
▪ RGB LED(MNT) : CH-16
- Auto W/B adjustment instrument(only for Auto adjustment)
4.1.1. Adjustment of White Balance :
(For Automatic Adjustment)
Connecting diagram of equipment for
measuring (For Automatic Adjustment)
(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
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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