User manual DIGITECH 2120 V2.1

[. . . ] 2. 10 Eprom Update Installation Instructions The symbols shown at left are internationally accepted symbols that warn of potential hazards with electrical products. The lightning flash with arrow point in an equilateral triangle means that there are dangerous voltages present within the unit. [. . . ] Also, you should upload any user programs and Utility modifications via the SysEx Program and SysEx System dump routines to a MIDI data recording device or another 2120 or sequencer/librarian if you want to keep these changes, and upload them back in once installation is complete. Refer to your 2120 User's Guide on this procedure. Once you have archived your user data, the steps for installing the Eprom are as follows: Remove the power cord form the 2120 Remove the 4 screws located on the left and right side of the 2120 Remove the rear panel top screws. Remove the the front top center hex-screw. Locate the Eprom on the circuit board near the MIDI jacks. It is the chip with the white label on it. Using an Eprom puller or a scribe, carefully insert the tool between the chip and the socket and remove this chip by lifting one edge and then the opposite edge until the Eprom is free. Take the 2120 Upgrade Eprom and locate the notch at one end. When placing the Eprom into the socket, make sure this notch is pointing towards the back of the 2120, toward the Control One jack. Make sure the pins are properly aligned before pressing the Eprom into place. Align the pins with the appropriate holes of the socket and press the Eprom straight down. Make sure that none of the pins bend under when doing so. [. . . ] Do this by pressing and holding the <Preamp> button and turning on the 2120. When the asterisk appears in the top line of the display press the <Mod> button. [. . . ]