User Manual

Replacing the DMX chip
If the USB DMX interface is being recognized by the software but you have no DMX output, it may be
possible to resolve this issue by replacing the DMX chip.
We are aware that some SUSHI interfaces have been assembled with a DMX chip coming from a
different supplier that seems to be of a lower quality. This could be the reason for your problem.
The bad reference is MAXIM EPA 1327.
Because of this we would like to offer to send you a new DMX chip free of charge (SIPEX SP485ECP-L)
The component is easy to replace by simply pulling out the old DMX chip and plugging in the new (no
soldiering required, see below for instructions).
Please give us your full address, your name and phone number.
Generally, we ship by normal post because the component is very small.
Note: The "DMX chip" is an 8 pin electronic integrated circuit (IC) component located on the electronic
card, with the purpose of "driving" the DMX-512 signal.
In addition to transmitting DMX, the DMX chip also protects the rest of the interface from over-voltage.
If the DMX connector is overloaded, the first component to break will often be the DMX chip.
Customers and distributors can try to open the interface and change the DMX chip.
In all cases, the 12 months warranty is still valid.
You need to consider the "DMX chip" like a "Fuse". It's why, we advise all distributors and users to have a
spare DMX chip (RS485 driver).
It can be available under several references : SP485ECP-L, MAX485CPA+, ADM485JNZ
Easy to find/buy on the internet : digikey.com, farnell.com, rs-components.com, mouser.com,
newark.com, aliexpress.com, hqew.net,
This image explains how to open the interface. We advise to use a very small screwdriver.