Read LG 55GA7900-UA (CHASSIS:LA37G) Service Manual online
Changing method
1.
Contact the USB memory. (USB 1,2,3 jack)
2.
Enter the password. (ex. 000000)
* Access USB Memory has each password.
Standard Repair Process Detail Technical Manual
Tool option changing method
A30
Established
date
Revised
date
Error
symptom
Content
LCD TV
A30
②
2012. 02 .03
①
E. Etc
<GA64/7900>