Adjustment Instruction - LG 42WS10-BAAL Service Manual

1. Application
This spec sheet is applied all of the Digital Signage Product
with LWB1A chassis.
Ex. ) LW01A :47WV30
2. Designation
1) The adjustment is according to the order which is
designated and which must be followed, according to the
plan which can be changed only on agreeing.
2) Power Adjustment: Free Voltage
3) Magnetic Field Condition: Nil.
4) Input signal Unit: Product Specification Standard
5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25 °C ± 5 °C
Relative humidity : 65 % ± 10 %
Input voltage : 220 V, 60 Hz
6) Color Analyzer (CA-210 or CA-110), DDC Adjustment Jig
equipment, SVC remote controller.
7) Push The "IN STOP KEY" - For memory initialization.
Case1 : Software version up
1. After downloading S/W by USB , Multi-vision set will
reboot automatically
2. Push "In-stop" key
3. Push "Power on" key
4. Function inspection
5. After function inspection, Push "In-stop" key.
Case2 : Function check at the assembly line
1. When TV set is entering on the assembly line, Push
"In-stop" key at first.
2. Push "Power on" key for turning it on.
--> If you push "Power on" key, TV set will recover
channel information by itself.
3. After function inspection, Push "In-stop" key.
3. Main PCB check process
3.1. ADC Process
3.1.1 ADC
· Enter Service Mode by pushing "ADJ" key,
· Enter Internal ADC mode by pushing "
Calibration"
--> Caution: Using 'power on' button of the Adjustment R/C ,
power on Multi-vision.
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes

ADJUSTMENT INSTRUCTION

G " key at "ADC
- 10 -
* ADC Calibration Protocol (RS232)
NO. Item CMD 1 CMD 2 Data 0
Enter Adjust 'Mode In' A
Adjust MODE
ADC adjust ADC Adjust A
Adjust Sequence
*aa 00 00 [Enter Adjust Mode]
*xb 00 40 [Component1 Input (480i)]
*ad 00 10 [Adjust 480i Comp1]
*xb 00 60 [RGB Input (1024*768)]
*ad 00 10 [Adjust 1024*768 RGB]
*aa 00 90 End Adjust mode
*Required equipment : Adjustment R/C.
3.2. DDC EDID Download
- Auto Download
· After enter Service Mode by pushing "ADJ" key,
· Enter EDID D/L mode.
· Enter "START" by pushing "OK" key.
--> Caution: Never connect HDMI & D-sub Cable when EDID
downloaded.
* Edid data and Model option download (RS232)
NO. Item CMD 1 CMD 2 Data 0
Download A
Enter
'Mode In'
download MODE
EDID data and Download A
Model option
3.2.1. DDC EDID Write (RGB 128Byte )
· Connect D-sub Signal Cable to D-Sub Jack.
· Write EDID DATA to EEPROM (24C02) by using DDC2B
protocol.
· Check whether written EDID data is correct or not.
* For SVC main Ass'y, EDID have to be downloaded to Insert
Process in advance.
A 0 0 When transfer the 'Mode In'
Carry the command.
D 1 0 Automatically adjustment
(The use of a internal pattern)
A 0 0 When transfer the 'Mode In'
Carry the command.
E 00 10 Automatically adjustment
(The use of a internal pattern)
LGE Internal Use Only