1680X Chess Computer  (600-2428)    Troubleshooting    Faxback Doc. # 6783

If your computer is not working as it should, follow the suggestions below
to see if you can eliminate the problem.  If you cannot, take the computer
to your local Radio Shack store for assistance.

            Symptom                              Solution

The LCD display is dim or blank.         Slide IIIii to the left until the
                                         display appears.

The computer does not accept a           Verify the position of all black
legal move, or displays an               and white.
unexpected move.

During a normal game, the LCD            The computer is set to the coach
display shows oob and will not           function.  Press COACH until the
accept white's move.                     file board light displays G
                                         (NORMAL) and the display shows
                                         Coa.

During set up, the computer displays     Correct the setup.
ILL and will not accept the setup.

During a game, the computer will not     The computer is set to a mate
display evaluation rating, search        search level, and cannot display
depth, or current move information       an evaluation rating during a
when EVALUATION is pressed.              mate search game.  Choose another
                                         button or level.

During a normal game, the computer       The computer is set to silent.
will not beep.                           Press COACH until the file board
                                         light displays G (NORMAL) and the
                                         display shows Coa.

The computer does not work at all.       Check the batteries and AC
                                         adapter (if used).

(br/all-6/30/94)