3G Green Green Globe SDEC2500A Leaflet

Page of 2
      
 
 
 
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