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TR-707 ROM Expansion
This kit includes:
1x
Pre-assembled PCB
1x
Ribbon cable with IDC plug
1x
28-way IC socket
www.hkadesign.org.uk
You will need:
-
Fine tipped soldering iron & solder
-
De-soldering pump or braid
-
Phillips head screwdriver
-
Wire strippers
hka design
Installation Instructions
july 2020
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Table of Contents
Related Manuals for HKA TR-707
Summary of Contents for HKA TR-707
- Page 1 TR-707 ROM Expansion Installation Instructions This kit includes: You will need: Pre-assembled PCB Fine tipped soldering iron & solder Ribbon cable with IDC plug De-soldering pump or braid 28-way IC socket Phillips head screwdriver Wire strippers www.hkadesign.org.uk july 2020...
- Page 2 With the main board assembly out of the case, locate IC34 and IC35 in the front right-hand corner of the PCB (both marked HN61256P). Carefully de-solder and remove them, and solder the included chip sockets in place of IC35. IC34 IC35 IC37 IC32 IC33 IC36 Front right-hand corner of TR-707 main board...
- Page 3 Installation Plug the expansion board into the socket at IC35, ensuring that the pins are lined up correctly. Separate, strip and tin the wires of the included ribbon cable (striped wire = 1) : • Wires 1 to 8 should be separated to 3cm •...
- Page 4 The ROM Expansion kit will replace all of the sounds, except for the last two: crash + ride on the TR-707, quijada and star chime on the TR-727. A future add-on board will allow these to be switched as well.
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