42LH90QD (CHASSIS:LT91C) - LG TV Service Manual (repair manual). Page 12

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This  specification  sheet  is  applied  to  all  of  the  LCD  TV  with
LT91C chassis.

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.

* APC - After Manual-Insert, executing APC

(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.

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.