DOWNLOAD LG 72LZ9900-CA (CHASSIS:LC12N) Service Manual ↓ Size: 14.45 MB | Pages: 63 in PDF or view online for FREE

Model
72LZ9900-CA (CHASSIS:LC12N)
Pages
63
Size
14.45 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
72lz9900-ca-chassis-lc12n.pdf
Date

LG 72LZ9900-CA (CHASSIS:LC12N) Service Manual ▷ View online

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ADJUSTMENT INSTRUCTION
1.  Application range 
 
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. 
Chassis 
Model Name 
Market Place 
Brand 
Remark 
LC12N 
72LZ9900-CA 
CHINA,HONG KONG 
(PAL/DTMB Market) 
LG 
 
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3. Adjustment items 
 
3.1 Main PCB check process 
 
▪ MAC Address Download 
 
▪ Adjust 480i Comp1 
 
▪ Adjust 1920*1080p Comp1, RGB 
 
▪ EDID/DDC download 
 
Above adjustment items can be also performed in Final Assembly if needed. Both 
Board-level and Final assembly adjustment items can be check using In-Star Menu 
1.ADJUST CHECK. 
 
3.2 Final assembly adjustment 
 
▪ White Balance adjustment 
 
▪ RS-232C functionality check 
 
▪ PING Test 
 
▪ Local Dimming Function Check 
 
▪ Factory Option setting per destination 
 
▪ Ship-out mode setting (In-Stop) 
 
3.3 Etc 
 
▪ Ship-out mode 
 
▪ Service Option Default 
 
▪ USB Download(S/W Update, Option, 
Service only
 
▪ ISP Download (Option) 
4. Automatic Adjustment 
 
4.1 MAC Address   
4.1.1 Equipment & Condition 
▪ Play file: Serial.exe 
▪ MAC Address edit 
▪ Input Start / End MAC address   
 
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4.1.2 Download method 
4.1.2.1 Communication Port connection 
 
 
 
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port 
 
4.1.2.2 MAC Address Download 
 
 Com 1,2,3,4 and 115200(Baudrate) 
▪ Port connection button click(1) 
 
 
 Load button click(2) for MAC Address write. 
▪ Start MAC Address write button(3) 
PCBA
PC(RS-232C)
RS-232C Port
▪ Check the OK Or NG   
4.2 LAN PORT (Automatic IP) 
4.2.1 Equipment & Condition 
▪ Each other connection to LAN Port of IP Hub and Jig 
 
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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 Model name & Serial number Download 
4.4.1 Model name & Serial number D/L 
■ Press “Power on” key of service remocon.(Baud rate : 115200 bps) 
■ Connect RS232 Signal Cable to RS-232 Jack. 
■ Write Serial number by use RS-232. 
■ Must check the serial number at Instart menu.   
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