I purchased the unit from a private party and the original owners manual was not available. Having the ability to download it was extremely helpful and clarified operating the equipment immensely. This is a complicated unit and without the manual I would not have been able to maximize it's potential. Thank you.
Text excerpt from page 10 (click to view)
4-6. KEY CHECK MODE
4-6-1. Outline of the function This mode is used to check to make sure that each of the keys (including the slide switch) on the set operates normally. 4-6-2. Setting the Key Check mode 1. Set the TEST MODE. Press and hold down DISPLAY key (for more than 2 sec) to set the Key Check mode. LCD display
2. When each key on the set and on remote control is pressed, its name is displayed on the LCD. (The operated position is displayed for 4 sec after the slide switch is operated. If any other key is pressed during this display, the LCD switches to its name display) Example: When > key on the set is pressed: LCD display
000 FF XX
Example: When > key on the remote control is pressed: LCD display
000 rFF XX
XX: AD value of the remote control key (hexadecimal 00 to FF) 3. When all the keys on the set and on the remote control are considered as OK, the following displays are shown. (The key pressed to enter the Key Check mode has been checked even if it is not pressed in this mode) Example: When the keys on the set are considered as OK: LCD display
SET OK XX
Example: When the keys on the remote control are considered as OK: LCD display
RMC OK XX
4. When all the key have been checked or when the top panel is opened during this checking, the system terminates the Key Check mode and return to the TEST MODE. Note: Slide switch can checked as OK by ON t OFF t ON (or reverse) operation.