32LW5500-CA (CHASSIS:LC12C) - LG TV Service Manual (repair manual). Page 9

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ADJUSTMENT INSTRUCTION
1. Application range 
Chassis 
Model Name 
Module 
type 
Local 
dimming 
 
Remark 
Edge LED
 
1 point W/B adjustment 
LC12C 
32/42/47LW5500-CA
1.1  This spec sheet is applied all of the LCD TV with LC12C chassis. 
  1.2 Main manufacturing type 
▪SET      (    o    ) 
▪CKD   (  o  )  
▪SKD      (    o    ) 
2. Specification 
2.1
   
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.   
2.2
   
Adjustment must be done in the correct order.   
2.3
   
The adjustment must be performed in the circumstance of 25 ±5 °C of temperature and 
65±10% of relative humidity if there is no specific designation.   
2.4
   
The input voltage of the receiver must keep 100~240V, 50/60Hz.   
2.5  At first worker must turn on the SET by using Power Only Key. 
2.6
   
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 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. 
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