Jp1, Jp2 Battery Backup; Update The Software - Muratec MFX-1300 Field Engineering Manual

3.22 JP1, JP2 Battery Backup

Jumper JP2 on the main control PCB is used for battery back-up of the DRAM. Any documents stored in
DRAM. Removing JP2 will initialize the DRAM. If the power is turned off, the battery will provide up to 72
hours of back-up when fully charged with 8 MB.
Jumper JP1 on the main control PCB is used for battery back-up of the SRAM. All user programmed data and
internal machine parameter, memory switch and unique switch settings are held in SRAM. Removing JP1 will
initialize the SRAM. If the power is turned off, the battery will provide up to five years of back-up when fully
charged.

3.23 Update the software

Here's instruction to update the software version of the Flash ROM.
Important: To update the software, it needs the flash ROM writer and three of the latest versions of EP-
ROMs — ROM0, ROM1 and ROM2.
1. Turn off the power switch.
2. Remove the access cover on the rear cover by removing one screw.
3. Connect the two connectors of the Flash ROM writer to the 14A and 14C on the main control PCB.
Note: Make sure the latest versions of ROM0, ROM1 and ROM2 are set to the Flash ROM writer.
4. Turn the power on.
5. The Flash ROM writer erases the current program in the fax machine, then writing the new program to the
machine.
Flash Mem Write Prog
Erasing•••
ROM0:F112 ROM1:
>>>>>>>>>>>••••••••10
6. At the end of this operation (it takes a few minutes), the LCD shows the following message or similar:
ROM0:F112
ROM2:4E0D
7. Turn off the power switch.
8. When you finish the upgrading, disconnect the flash ROM writer from main control PCB.
9. Re-attach the small panel on the rear cover.
10. Turn on the power switch.
11. After finishing to update the software, you must perform the "DRAM Clear" by pressing
Program key, *, G(07).
ROM1:65A9
ROM3:0000
3-92