LG 65LA9700-UA (CHASSIS:LA34N) Service Manual ▷ View online
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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
No.
Side by Side
Top & Bottom
Checkerboard
Single Frame
Sequential
Frame Packing
2D to 3D
1
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ADJUSTMENT INSTRUCTION
1. Application
This spec. sheet applies to LA34N Chassis applied LED TV all
models manufactured in TV factory
2. Specification
(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 ±5 ºC of temperature and 65±10% of relative humidity if
there is no specific designation
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15 ºC
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. Adjustment items
3.1. Main PCBA Adjustments
(1) ADC adjustment: Component 480i, 1080p
(2) EDID downloads for HDMI
※
Remark
- Above adjustment items can be also performed in Final
Assembly if needed. Adjustment items in both PCBA and
final assembly tages 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
3.3. Appendix
(1) Tool option menu, USB Download (S/W Update, Option and
Service only)
(2) Manual adjustment for ADC calibration and White balance.
(3) Shipment conditions, Channel pre-set
4. MAIN PCBA Adjustments
4.1. ADC Calibration
- An ADC calibration is not necessary because MAIN SoC
(LGExxxx) is already calibrated from IC Maker
- If it needs to adjust manually, refer to appendix.
4.2. MAC Address, ESN Key and Widevine
Key download
4.2.1. Equipment & Condition
1) Play file: keydownload.exe
4.2.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.2.3. 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
6) Printer out (MAC Address Label)
4.2.4. Communication Port connection
1) Connect: PCBA Jig -> RS-232C Port == PC -> RS-232C
Port
4.2.5. Download
1) US, Canada models (13Y LCD TV + MAC + Widevine +
ESN Key + DTCP Key + HDCP1.4 and HDCP2.0)
4.2.6. Inspection
- In INSTART menu, check these keys.
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4.3. LAN port Inspection (Ping Test)
4.3.1. 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
4.3.2. 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
4.4. EDID Download
4.4.1 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”.
necessity of user input. It is a realization of “Plug and Play”.
4.4.2 Equipment
▪ Since embedded EDID data is used, EDID download JIG,
HDMI cable and D-sub cable are not need.
▪ Adjust remocon
4.4.3 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.
4.4.4. EDID DATA(PCM)
▪ HDMI1 (C/S:E8 95)
EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
▪ HDMI2 (C/S:E8 85)
EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
▪ HDMI3 (C/S:E8 75)
EDID Block 0, Bytes 0-127
EDID Block 1, Bytes 128-255
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4.5. 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.
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 °C
- 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)
※
Color Analyzer Matrix should be calibrated using CS-1000
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 caseASCII)
Data Range
(Hex.)
CMD1
CMD2
MIN
MAX
Cool
R Gain
j
g
00
C0
G Gain
j
h
00
C0
B Gain
j
i
00
C0
Medium
R Gain
j
a
00
C0
G Gain
j
b
00
C0
B Gain
j
c
00
C0
Warm
R Gain
j
d
00
C0
G Gain
j
e
00
C0
B Gain
j
f
00
C0
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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