LG 22LF4520, Service Manual

Page: 9 / 26

- 9 - LGE Internal Use Only
Copyright © LG Electronics. Inc. All right reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This document is applied to LU50A chassis TV which is manu-
factured in TV (or Monitor) Factory or is produced on the basis
of this data.
2. Designation
1) The adjustment is according to the order which is designat-
ed 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) Adjustment equipments : Color Analyzer (CA-210 or CA-
110), DDC Adjustment Jig equipment, SVC remote control-
ler.
7) Push The "IN STOP KEY" – For memory initialization
3. Main PCB check process
* APC - After Manual-Insult, executing APC
* Boot file Download
1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
2) Set as below, and then click “Auto Detect” and check “OK”
message. If display “Error”, Check connect computer, jig,
and set.
3) Click “Connect” tab. If display “Can’t ”, Check connect
computer, jig, and set.
*When you use JIG for checking and download. Connect D-
SUB cable D-SUB jack for RS232. (Refer to 12page)
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”
5) Click “Auto” tab and set as below
6) Click “Run”.
7) After downloading, check “OK” message.
* USB DOWNLOAD
1) Make New folder named “LG_DTV” and put ISP file(*.bin)
in the folder.
2) Put the USB Stick to the USB socket.
3) 3 Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is
Low, it didn’t work. But your downloaded version is
High, USB data is automatically detecting.
4) TV Software Upgrade feature will be displayed.
5) Updating is starting.
6) Updating Completed, The TV will restart automatically.
(1) (3)
(2) OK
Please Check the Speed :
Use the speed under
200KHz.
(4)
filexxx.bin
(6)
(5)
(7) ……….OK
(5)
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" ke y 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.