DX7 S
Page 7 of 7
Install
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Test
The first time you power the DX7 on (and any time you change the battery) you will notice about a
5 second delay before the LCD shows it's initial message. Tense moments indeed.
The LED should display characters such as
“--”. “C4” and “Su”
. Eventually you should get
the message like:
* Welcome to *
* S! *
The 2 banks of "factory" patches sounds have been copied to all 16 patch memory banks. Please
read the owners manual before reloading your own patches. You can do a quick version check of
the board by pressing and holding the front Function button and also pressing and holding
buttons 16 and 32. You should see something like the following:
MAXsystems v2.20
NOTE:
Rev B
also shows the setting of the board mounted
velocity switch
on this screen. It will
say
“Vel=+0”
(normal) or
“Vel=+3”
(offset applied). The units 0 and 3 are DX7 internal values
and have no particular weighting such as MIDI units or dB or anything else. It was chosen so that
a typical player can achieve a MIDI Out note-on velocity of 127 using reasonable force.
Consult the online "Yamaha DX7 S User Guide" for more information on using
your upgraded DX7
.
Problems?!
Almost all installation problems are due to poor board seating or connections.
Remove the board; check all the pins for debris, contamination, bending, etc. Then reinstall.
Battery Holder Option
The information here is deliberately minimal. It is intended that a professional perform the work
for the battery modification.
A CR2032 battery holder is supplied in case you would like to have your soldered-in
battery
removed
and replaced with a CR2032 coin cell.
If you prefer to install a pair of AA or AAA batteries, such a holder is available by
special request at S order time.
CR2032 lithium batteries are extremely sensitive to heat and shorting and can
explode! This operation should be left in the hands of a qualified technician.
The tech will remove the old battery and run wires from the old battery location to the new one,
making careful note of correct polarity
. It is not unusual, however, to encounter defective
diodes and/or open traces.
This work will require the use of a
multimeter and soldering iron
!
