JBL SDEC1000A - Manual

SDEC1000A & SDEC2500A Flash Chip Exchange Instructions
To: JBL SIS Dealers & Reps
From: Chris Neumann
Subject: Transferring SDEC settings by swapping Flash IC’s
Date:
6/18/02
When replacing an SDEC Digital Equalizer, as an alternative to using the Loader
utility, the flash memory chips on the DSP Engine inside the SDEC, which contain the
programmed filter, delay and crossover settings may be swapped. With SDEC1000/A
swapping flash chips is a more reliable method of transferring files to a replacement
unit. Follow the procedure below to swap SDEC.d97 file settings.
1. Remove the malfunctioning SDEC from the equipment rack.
2. Remove the SDEC top cover.
Fig. 1
Fig. 2
3. Locate U3 on the DSP Engine Board (
see Fig.2
).
DSP
Engine
Board
U3 on DSP Engine
1V6 for SDEC1000/A
2V6 for SDEC2500/A
Headroom DIP
Switches