37LH50YD (CHASSIS:LB91B) - LG TV Service Manual (repair manual). Page 9

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- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This  specification  sheet  is  applied  to  all  of  the  LCD  TV  with
LB91B 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±5ºC 
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
* 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.
* USB DOWNLOAD(*.epk file download)
(1) Put the USB Stick to the USB socket.
(2) 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
(3) Show the message “Copying files from memory”
f i l ex x x .bi n
( 7 ) .........OK  
( 6) 
(5)
 
(1)
Please Check the Speed : To use speed between
from 200KHz to 400KHz
(2)
filexxx.bin
(3)
(4)
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 “I n-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.
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