Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied all of the Digital Signage Product
with LW43B chassis.
2. Specication
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 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specic designation.
4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
5) At rst Worker must turn on the SET by using Power Only
key.
6) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15.
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 min-
utes 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 MAC Address
Download
1) ADC adjustment: Digital Only [does not apply]
2) EDID / DDC Download.
3) MAC Address Download
* Remark
- Above adjustment items can be also performed in
Final Assembly if needed. Adjustment items in both
PCBA and nal assembly stages can be checked by
using the INSTART Menu → 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) Ship-out mode
2) Service Option Default
3) Tool option menu, USB Download (S/W Update, Option,
service only)
4) ISP Download (Optional)
4. MAIN PCBA Adjustments
4.1. ADC Calibration [MS75A Model Digital
Only Model: does not apply]
- 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
4.2.1. Equipment & Condition
1) Play le: 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 : DETECT → MAC_WRITE
4) Play: START
5) Check of result: Ready, Test, OK or NG
4.2.4. Communication Port connection
1) Connect : PCBA Jig → RS-232C Port == PC → RS-232C
Port
4.2.5. Download
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