Concertmate 1000  (420-4020)      Troubleshooting      Faxback Doc. # 7652

If the keyboard is not working properly, check the batteries, (See "using
Batteries.")  If the keyboard still does not work properly, this
Troubleshooting Chart might help.


         Trouble            Possible Cause           Remedy

No sound, even if keys    1. MAIN VOLUME is       1. Turn up MAIN VOLUME.
are pressed.                 turned down.                               

                          2. Headphones are       2. Disconnect
                             connected.              headphones.

                          3. Auto power off       3. Turn power off and
                             has activated.          then on again.

                          4. Power supply         4. Check power supply.
                             problem.                Are battery symbols
                                                     (+/-) facing
                                                     correctly?
                                                     Are batteries fresh?
                                                     Is AC adapter
                                                     connected correctly?

No rhythm.                MAIN or RHYTHM VOLUME   Turn up volume.
                          are turned down.

No accompaniment.         MAIN or ACCOMPANIMENT   Turn up volume.
                          VOLUME are turned down.

Occasional interference.  Refrigerators, washing  Use an outlet on a
                          machines and similar    different electrical
                          electric appliances     circuit than the
                          are interfering.        appliance.

No sound when connected   1. MAIN VOLUME is       1. Turn up the volume.
to an external amplifier.    turned down.

                          2. Defective            2. Replace the
                             connection cord.        connection cord.

Can't change the modes.      Mode is hard-set     This cannot be
                             for Mode 3.          changed.

(BR/tlc-03/09/95)