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JBL SDEC1000A User Manual

JBL Acoustics

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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