DX7mega128
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Install v1.20
www.musictechnologiesgroup.com
Preliminary
Yamaha DX7mega128 Expansion Install
1: Introduction
The DX7mega128 a powerful option board that provides increased memory and greater control of
the DX7.
While the installation is fairly simple, it still requires patience and general electronics
knowledge. We accept no responsibility for the work you perform on your DX7. Read over
the following installation description and if you feel you are not capable of the work
required, turn the project over to a qualified technician
Precautions!
High Voltage Safety Warning
Unplug the audio cable. Turn the DX7 power switch OFF and unplug it from the wall.
Disconnect any other connected cables before opening the DX7
.
ESD Precautions and Proper Handling Procedures
You should observe standard static-safe handling behavior when working with sensitive electronic
equipment such as synthesizers:
o
Avoid carpets in cool, dry areas.
o
Dissipate static electricity before handling any system components by touching a
grounded metal object.
o
If possible, use anti-static devices, such as wrist straps and floor mats.
o
Take care when installing the board. Prevent damage to the connectors by aligning
connector pins before you apply pressure. A damaged pin can render the board unusable
and can cause damage to system components at power-on.
o
If disconnecting a cable, always pull on the cable connector, not on the cable itself.
Tools Required
o
Standard Philips screwdriver.
o
Standard flat-head screwdriver (small).
Condition of DX7
While the DX7mega128 will replace the functionality of damaged or missing EPROM and/or
SRAM chips, it will not correct other problems your vintage synthesizer may have. It is
recommended that the synth be in otherwise good condition before beginning the installation. For
instance, the battery voltage should be checked and the battery replaced/repaired by a tech if
necessary. Sockets for the EPROM and SRAM chips should be in good working order and not be
