LG 55LW5500-CA (CHASSIS:LC12C) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application range
Chassis
Model Name
Module
type
Local
dimming
Remark
Edge LED
O
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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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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