DOWNLOAD LG 47LE5400 (CHASSIS:LA02D) Service Manual ↓ Size: 7.88 MB | Pages: 85 in PDF or view online for FREE

Model
47LE5400 (CHASSIS:LA02D)
Pages
85
Size
7.88 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
47le5400-chassis-la02d.pdf
Date

LG 47LE5400 (CHASSIS:LA02D) Service Manual ▷ View online

- 13 -
4.5 EDID/DDC Download  
(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”. 
(2) Equipment
• Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.  
• Adjust by using remote controller.  
(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.
(4) EDID DATA 
- 14 -
5. Final Assembly Adjustment 
5.1. White Balance Adjustment 
(1) Overview
• W/B adj. Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- 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.   
- Adj. condition : normal temperature
1) Surrounding Temperature: 25±5ºC
2) Warm-up time: About 5 Min
3) Surrounding Humidity: 20% ~ 80%
(2) Adj. condition and cautionary items 
• Lighting condition in surrounding area surrounding lighting
should be lower 10 lux.  Try to isolate adj. area into dark
surrounding. 
• Probe location: Color Analyzer (CA-210) probe should be
within 10cm and perpendicular of the module surface
(80°~ 100°) 
• Aging time 
1) After Aging Start, Keep the Power ON status during
5 Minutes. 
2) In case of LCD, Back-light on should be checked
using no signal or Full-white pattern. 
(3) 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/216-Gray
(Model:217, Pattern:78) 
-> Only when internal pattern is not available
• Color Analyzer Matrix should be calibrated using CS-1000
(4) Equipment connection
(5) Adj. Command (Protocol)
1) RS-232C Command used during auto-adj. 
2) Adjustment Map
(6) Adj. method
• Auto adj. method
1) Set TV in adj. mode using POWER ON key
2) Zero calibrate probe then place it on the center of the
Display
3) Connect Cable(RS-232C)
4) Select mode in adj. Program and begin adj.
5) When adj. is complete (OK Sing), check adj. status pre
mode (Warm, Medium, Cool)
6) Remove probe and RS-232C cable to complete adj.
(7) Reference (White Balance Adj. coordinate and color
temperature)
• Luminance: 216 Gray
• Standard color coordinate and temperature using CS-
1000 
• Standard color coordinate and temperature using CA-210
(CH 14)
Co lo r An alyzer
 
Co m p ut er
 
Pat t ern Gen erat o r
 
RS -232C 
RS -232C 
RS -232C 
Probe
Signal Source
* If TV internal pattern is used, not needed
Connection Diagram of Automatic Adjustment
Mode
Color Coordination
Temp
UV
x
y
COOL
0.269
0.273
13000K
0.0000
MEDIUM
0.285
0.293
9300K
0.0000
WARM
0.313
0.329
6500K
0.0000
Mode
Color Coordination
Temp
UV
x
y
COOL
0.269±0.002
0.273±0.002
13000K
0.0000
MEDIUM
0.285±0.002
0.293±0.002
9300K
0.0000
WARM
0.313+0.002
0.329±0.002
6500K
0.0000
- 15 -
• Standard color coordinate and temperature using CA-
210(CH 14) – by aging time 
1) Edge/IOP LED models 
5.2. Tool Option setting & Inspection per
countries 
(1) Overview
•  Tool option selection is only done for models in Non-USA
• Applied model: LA02D and LA02E Chassis applied to
CANADA and MEXICO 
(2) Country Group selection 
•  Press ADJ key on the Adj. R/C, and then select Country
Group Menu 
•  Depending on destination, select KR or US, then on the
lower Country option, select US, CA, MX.  Selection is
done using +, - KEY 
(3)  Tool Option Inspection  
•  Press Adj. key on the Adj. R/C, and then check Tool
option.  
5.3. Local dimming inspection (Optional) 
5.3.1. Edge LED models with local dimming 
(1) Press  ‘TILT” key of the Adj. R/C and check moving
patterns. The black bar patterns moves from left to right.    
If local dimming function does not work, a whole screen
shows full white. 
5.3.2. IOP LED models with local dimming 
(1) Press ‘TILT” key of the Adj. R/C and check moving
patterns. The black cross-bar patterns moves from top-left to
Bottom-right. If local dimming function does not work, a whole
screen shows full white. 
5.4. Ship-out mode check (In-stop)
• After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode. 
- 16 -
6. GND and Hi-pot Test 
6.1. Method
6.1.1. GND & HI-POT auto-check preparation  
(1) Check the POWER CABLE and SIGNAL CABE
insertion condition 
6.1.2. GND & HI-POT auto-check  
(1) Pallet moves in the station. (POWER CORD / AV
CORD is tightly inserted) 
(2) Connect the AV JACK Tester. 
(3) Controller (GWS103-4) on. 
(4) GND Test (Auto)  
- If Test is failed, Buzzer operates. 
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)  
(5) HI-POT test (Auto) 
- If Test is failed, Buzzer operates. 
- If Test is passed, GOOD Lamp on and move to next
process automatically. 
6.2. Checkpoint
• TEST voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
• TEST time: 1 second
• TEST POINT
- GND TEST = POWER CORD GND & SIGNAL CABLE
METAL GND
NEUTRAL
• LEAKAGE CURRENT: At 0.5mArms
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