TROUBLEShOOTINg
ELEcTRONIcS
If the piano is not producing any sound, ensure that a functional instrument cable is connected between the
piano’s oUtPUt jack and the input of a properly functioning amplifier. try both positions of the passive /
tube preamplifier pushbutton switch.
If the piano is working in the passive setting but not in the tube preamplifier setting, ensure that the preamp
is receiving power. a quick indicator is that the lED on the front rail is illuminated. If the lED is not illumi-
nated, ensure that an appropriate power supply is plugged into the Dc jack at the rear of the piano and that
the volume switch is turned in the clockwise direction past the “off” position.
If the piano is not outputting any sound in either the passive or tube preamplifier positions of the pushbut-
ton switch, remove the instrument cable from the piano’s oUtPUt jack and insert it into the SEnD jack (with
the opposite end of the cable still connected to a properly functioning amplifier). this will bypass all of the
piano’s internal wiring and take the signal directly off of the harp. Should you still not have output, check that
the harp is not at fault by plugging a 1/4” cable with Rca adapter between the harp itself and an amplifier. If
the piano can be heard through the amplifier, the harp is not the issue.
Should you need further assitance, the information you have obtained from these troubleshooting steps will
help us to further assess your issue.
STIckINg kEyS
If a key becomes sluggish or remains in a depressed position, one or more of the key bushings may have
swelled due to changing atmospheric conditions. first, check for left to right movement of the offending key.
a very slight amount of side-to-side movement should be present. If the front of the key feels tight, rock the
key back and forth over the key pin to free it.
If the key still sticks, the pin hole or balance rail bushings may be at fault, or the front key bushing may need
further spreading. Disconnect the piano from ac and all amplification. Remove the lid. on active models,
disconnect all jacks connecting the pre-amp to the jack plate. Remove two screws to unfasten the name rail
assembly and lift it out of the piano.
lift the offending key out of the piano. Use a wedge such as a flat head screwdriver to spread the key bushings
located under the key front, and on top of the key at the balance point. Do not twist the wedge, as splitting of
the key may result. Use an awl to slightly spread the balance rail pin hole on the underside of the key. lift the
hammer assembly to replace the key in the piano.
FIgURE 3
7
