3G Green Green Globe SDEC2500A Owner's Manual
Contents
1. 18 ee SDEC1000A amp SDEC2500A Flash Chip Exchange Instructions To JBL SIS Dealers amp Reps From Chris Neumann Subject Transferring SDEC settings by swapping Flash C 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 Headroom DIP Switches U3 on DSP Engine 1V6 for SDEC1000 A 2V6 for SDEC2500 A Fig 1 Fig 2 3 Locate U3 on the DSP Engine Board see Fig 2 SDEC1000A amp SDEC2500A Flash Chip Exchange Instructions Continued 6 18 02 Page 2 Flash Chip U3 Fig 3 4 Carefully remove the flash chip at designator U3 on the DSP Engine Board with a PLCC IC puller or a small screwdriver or paperclip see Fig 3 Be careful not to damage any of the pins on the chip or the IC socket as this will cause the unit not to function properly 5 Repeat steps 2 3 amp 4 with the replacement unit and swap the Flash chips Be sure to reinstall the chips correctly into the keyed sockets 6 Copy over the Headroom DIP Switch settings for input sensitivity a2. nd output gain from the malfunctioning unit to the replacement unit to ensure proper headroom settings for the system see Fig 1 DIP Switch Factory Default settings Unity Gain Inputs L C R 3dB L R Ambient amp Sub 0dB Outputs L C R 3dB L R Ambient amp Sub 0dB 7 Copy over the rear panel switch settings for Auto Manual turn on and Cinema Auto switching modes 8 Reattach the top cover of the replacement unit and reinstall it into the system Your system should now function normally with the appropriate filter delay and crossover settings 9 Reattach the top cover of the malfunctioning unit box the unit in the original or replacement s packing and return to J BL using the supplied RA number to make sure your account receives credit against the replacement J BL Systems I ntegration Specialist Products Group Northridge CA 91329 Ph 818 895 5712 Fax 818 920 3609 e mail cneumann harman com
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