20HIZ12 (CHASSIS:ML-041F) - LG TV Service Manual (repair manual). Page 12

- 12 -

When using the service remote control, press the In-Start key, and when using the user remote control, press the menu of
the local key and the menu of the user remote control simultaneously for 10 seconds to enter the service mode.

Press the menu key  one more time with the service mode OSD displayed and move th the hotel option setup page to set up.

- Decide to enter 'Channel Menu' or not in the 'Main Menu' by setting 'Channel Menu Display' as Yes(Enter Possible) or

No(Enter Impossible) on the "LG Hotel Mode" OSD.

- Decide to change channel or not by setting 'Channel Change' as Yes(Change Possible) or No(Change Impossible) when

present source is TV. 

- When 'Channel Change' is set to No(Change Impossible), Channel Key, Numeral Key, List Key, Q.View Key doesn't work

and entering 'Channel Menu' in the Main Menu OSD is impossible.

- When 'Channel Change' is set to Yes(Change Possible), Channel Key, Numeral Key, List Key, Q.View Key does work and

entering 'Channel Menu' in the Main Menu OSD is possible.

- When 'Channel Change' is set to No(Change Impossible), 'Channel' item in 'On Time' menu will be fixed.
- When 'Channel Change' is set to No(Change Impossible), entering 'Channel Menu' in the 'Main Menu' OSD is impossible

regardless of 'Channel Menu Display' item.