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1-4-5. Caution on Replacement of Flash
Memory
The following ICs on the DPR-139 board are flash
memory. When replacing the flash memory, a program
must be written in the replaced flash memory.
DPR-139 board: IC643 and IC201
Writing the program
Equipment and tools required
. Personal computer (PC):
IBM PC/AT or compatible machine
Operating system Microsoft Windows 95
. IEEE1284 cable
. DFR-3000 maintenance CD-ROM
(Part No. J-6409-130-A)
Procedure
(1) Connect the parallel port of a PC and the PC interface
connector of DFR-E3000 using an IEEE1284 cable.
(2) Insert the DFR-3000 maintenance CD-ROM into a PC
and activate the DFR-3000 maintenance software of
CD-ROM.
(3) Write a program in the memory according to the
instructions of DFR-3000 maintenance software.
For more information on the setting, refer to the
manual supplied for the DFR-3000 maintenance CD-
ROM.
DFR-E3000
1-4-6. Caution on Replacement of PIC
The following IC on the DPR-139 board is a PIC
microcomputer. When replacing the PIC, a program must
be written in the replaced PIC.
DPR-139 board: IC708
Writing the program
Equipment and tools required
. Personal computer (PC):
IBM PC/AT or compatible machine
Operating system Microsoft Windows 95
. IEEE1284 cable
. DFR-3000 maintenance CD-ROM
(Part No. J-6409-130-A)
Procedure
(1) Connect the parallel port of a PC and the PC interface
connector of DFR-E3000 using an IEEE1284 cable.
(2) Insert the DFR-3000 maintenance CD-ROM into a PC
and activate the DFR-3000 maintenance software of
CD-ROM.
(3) Make a solder bridge to the SL601 on the DPR-139
board.
E
D
C
B
A
1
2
3
(4) Write a program in PIC according to the instructions
of DFR-3000 maintenance software.
For more information on the setting, refer to the
manual supplied for the DFR-3000 maintenance CD-
ROM.
(5) After writing a program, unsolder the solder bridge
from SL601.
1-4. Replacement of Main Parts
Make a solder bridge.
SL601
4
5
6
A side (Component side)
1-21
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