Service Mode - Toshiba 55L7400U series Service Manual

SERVICE MODE

ENTERING SERVICE MODE
1. Press MUTE button twice on Remote Control.
TV mode changes as follows. Un-Mute => 1/2Mute => Mute
2. Press MUTE button again and keep pressing.
(Sound Mute is canceled)
3. While pressing the MUTE button, press CH/INPUT button on TV control panel.
(Enter Service Mode)
S
(1/3)