Xerox 8500DN Service Manual - Page 320

Service Parts Disassembly NVRAM (PL5.0.9) Caution Some semiconductor components, such as the NVRAM chip, are vulnerable to damage by Electrostatic Discharge (ESD). Note Observe the orientation of the NVRAM chip before removing it. 1. Remove the Back Cover from the Electronics Module. Note On 8400 models, the NVRAM chip is located at U850. On 8500/8550/ 8560 models, NVRAM is located at U840 2. Remove the old NVRAM chip from itís socket in the Electronics Module.. NVRAM Chip 1 s8500-114 3. Insert the new NVRAM chip into the socket. Ensure that the notch on the chip is on the left side. 4. Download the snippet titled "setsn.ps" from the Support web site. 5. Edit the snippet to include the printer serial number, using a text editor. 6. Download the edited file to the printer using an FTP program. 8-50 Phaser 8400/8500/8550/8560 Color Printer Service Manual