On remote control Press simultaneously Osd & mute unit
Or press simultaneously osd & picture.
Change parameter press channel up or down
Change value press Volume up or down.
JVC AV 28 WFT TV MODE SERVICE
For any one do not forgot to write the TV settings down before changing the setting to comensate the RGB picture shift.
For use under DEF Menu, to access service mode press i and mute together.
Settings from three different sets, in various stores so I know the service setting haven't been messed with. To obtain default settings simply use an average of the values below (or try each set), most of settings are similar to with +/- 1 across the three different tv sets.
Mode Dixon Currys Comet
JVC TV manuals schematic
