42SL90QD-AA (CHASSIS:LA92M) - LG TV Service Manual (repair manual). Page 9

Read LG 42SL90QD-AA (CHASSIS:LA92M) Service Manual online

1. Application 
This spec. sheet is applied all of the LCD TV with LB91L
chassis.
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 : 220V, 60Hz
(6) Adjustment equipments : Color Analyzer (CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote controller.
(7) Push The “IN STOP KEY” - For memory initialization.
3. Main PCB check process
* APC - After Manual-Insert, executing APC
3-1. 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 “Error” is displayed, Check connection between
computer, jig, and set.
3) Click “Read” tab, and then load download file (XXXX.bin)
by clicking “Read”.
4) Click “Connect” tab. If “Can’t ” is displayed, Check
connection between computer, jig, and set.
5) Click “Auto” tab and set as below
6) Click “Run”.
7) After downloading, check “OK” message.
- 9 -
ADJUSTMENT INSTRUCTION
Case1 : Software version up
1. After downloading S/W by USB , TV 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.
(4) 
filexxx.bin 
(1) 
(3) 
(2)
OK
Please Check the Speed : 
To use speed between 
from 200KHz to 400KHz 
          filexxx.bin 
(7) 
(5) 
(8) ……….OK 
(6) 
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