4 Self Check1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set.2. To get into the Self -Check mode press the [Down ( )] button on the customer controls at the front of the set, at the sametime pressing the [SET UP] button on the remote control, and the screen will show :If the CCU ports have been checked and found to be incorrect or not located then “--” will appear in place of “O.K.”.5 SERVICE HINTS5.1. Hotel ModePurpose1. At Hotels, this Mode prevent customer from changing the TV preset data, such as Channel preset data.Note:This Mode is useful for hotel, you should not get into “Hotel Mode” with Normal use.Operation1. To get into “ Hotel Mode”, press “Recall” button on the remote control and Channel up “[ ]” key on the TV setsimultaneously, after setting the “Off-Timer” mode.2. In this mode, The Channel up and down Function will be able as normal Mode, and The maximum volume level for thismode is set at the current volume level, that means setting at the level before entering the mode. However, other functionwill be disable.3. To exit This mode, press “SET UP” button on the remote control and the “Volume Down [ ]” key on the TV setsimultaneously.* This Information is informed by Service Manual only.7TX-17LA1M