
- 13 - LGE Internal Use OnlyCopyright  ©    LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION1. Application Range
This specification sheet  is applied  to all  of the  LED TV  with 
LD33B chassis.
2. Designation
(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 specific designation. 
(4)  The input voltage  of the  receiver must  keep AC  100-240 
V~, 50/60 Hz.
(5)  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 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. Automatic Adjustment
3.1. MAC address D/L, CI+ key D/L, Widevine
key D/L, ESN D/L, HDCP14/20 D/L
Connect: USB port 
Communication Prot connection
▪ Com 1,2,3,4 and 115200(Baudrate)
  Mode check: Online Only
▪  Check the test process: DETECT -> MAC -> CI -> Widevine 
-> ESN -> HDCP14 -> HDCP20
▪ Play: Press Enter key
▪ Result: Ready, Test, OK or NG
▪ Printer Out (MAC Address Label)
3.2. LAN Inspection
3.2.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig
3.2.2. LAN inspection solution
▪ LAN Port connection with PCB
▪ Setting automatic IP
▪  If you want manual connection, enter Network connection at 
MENU  Mod e o f  TV.  Press  St art  conn ectio n  key,  then 
Network will be connected.
▪ Setting state confirmation
-  If automatic setting  is finished,  you confirm  IP and  MAC 
Address at ‘in start’ menu mode.