LG 55EA970T, Service Manual

Page: 14 / 105

- 14 -
LGE Internal Use Only Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied all of the LT34D,E/ET34D,E
LED TV models, which produced in manufacture department
or similar LG 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. But it is
flexible when its factory local problem occurs.
(3) The adjustment must be performed in the circumstance of
25 ±5ºC of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input voltage of the receiver must keep 100~220V,
50/60Hz.
(5) Before adjustment, execute Heat-Run for 5 minutes.
3. Adjustment items
3.1. PCB Assembly Adjustment
1) MAC Address, ESN Key and Wide-vine Key D/L
2) LAN Test( Ping-Test )
3) Main S/W program download : Using USB Memory stick
4) Input Tool - Option
5) Download EDID : EDID data are automatically downloaded
when adjusting the Tool Option.
6) ADC Calibration – RGB & Component
7) Check SW Version
3.2. Set Assembly Adjustment
1) Input Area option.
2) Adjustment of White Balance : Auto
3) Adjustment of White Balance : Manual
4) Intelligent Sensor Inspection Guide
5) LAN Inspection Guide
6) Widevine Key Inspection Guide
7) Model name & Serial number D/L
8) Wi-Fi MAC Address Check
9) Local Dimming Inspection Guide
10) Preset CH information
11) GND and Internal Pressure check
12) Motion Remote controller Inspection
13) 3D Function test
14) Outgoing Condition Configuration
15) Sound spec
16) Factoring Option Data input
4. PCB Assembly Adjustment
4.1. MAC Address, ESN Key and Widevine
Key download
4.1.1. Equipment & Condition
1) Play file: keydownload.exe
2) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
3) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.1.2. Download Process
(13Y LCD TV + MAC + WI ESN)
1) Execute “keydownload.exe” on PC
2) Select the download items.
3) Mode check : Online only
4) Check the test process
- DETECT → MAC_WRITE → ESN_WRITE (only
Colombia/Panama)→ WIDEVINE_WRITE
5) Play: START
6) Check of result: Ready, Test, OK or NG
1) 13Y LCD TV+MAC+WESN Key+ HDCP1.4 and
HDCP2.0
4.1.3. Inspection
- In INSTART menu, check these keys.