DX7 S
Page 26 of 32
User Guide
© 2018 MusicTechnologiesGroup.com & MAXsystems
11: Tips & Troubleshooting
1. Keep in mind that the DX7 has only 16 voices that are used to generate all
of the instruments sounds and effects. When excessive delay is used or a
combination of several effects or too many notes are played, some of the
notes may not sound. For example, a 4x4 stack, a delay of 10ms and a
feedback of 15 sounding together requires 64 voices within 150ms. The
SuperMAX has been designed to use the DX7's voices intelligently to
allow you to play as fully as possible.
2. Arpeggiator, Delay and Stack Mode are inactive in MONO MODE though
Rolling Mode, Sound Creator and Velocity XSwitch can be used.
3. A convenient way to select banks from SuperMAX's expanded memory is
to have the most recently selected Memory Bank (Func #12, Page 1) live
in the "Function" mode. When you return to the "Play" mode the data entry
controls remain live on the Memory Bank parameter making it easier to
access the rest of your programs. This also holds true for any function
meaning that any function can be modified in the "Play" mode.
4. You can SAVE a complete bank of 32 sounds and functions on any RAM
cartridge in either DX7 format, DX-MAX format or SuperMAX format.
5. When you LOAD a cartridge SuperMAX is able to recognize the
appropriate format automatically. If the cartridge is in the DX-MAX format,
all of the functions that the DX-MAX ignores are set to "0". If the cartridge
is in the DX7 format the default values for each sound are those in the
EDIT BUFFER. Therefore, to load a bank from a DX7 formatted cartridge,
prepare the EDIT BUFFER with the values you want all 32 memory
locations to be initialized with. Do the same for a MIDI Receive. Note that
MIDI Transmit only sends the voice information.
6. If you hear no sound from your DX7 check the following:
MONO MODE (Func #2, Page 1) should not be used. Choose POLY.
MASTER VOLUME is set to 0. Raise the value on Func #17, Page 2.
The Low and/or High Key Limit values are inappropriate. Modify Func
#8, Page 2.
KEY CONT is set to Local OFF. Check Func #12, page 2.
The ARPEGGIATOR is set to use MIDI clock in and no such clock is
present.
7. If the Arpeggiator does not work, check the following:
If the global Arpeggiator is enabled (Func #11, Page 2) rather than the
per-patch choice, then make sure when selecting an Arpeggiator for
editing that you are using Arpeggiator #1 (Func #1, Page 2).
