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Service Guide OF2200/2400/2600
Chapter A Board Diagrams
A.2.08 Memory Board (DFME) Okifax 2400/2600
NOTE:
The unit MUST be reprogrammed when this board is replaced.
Function
The memory board stores system memory data picture memory for ECM send/receive mode, picture
memory for memory transmission mode, picture memory for the retransmission of data, and image
memory for reception in memory. A 4.8 Volt battery retains all of this information when AC power is
disrupted or removed. All system data is stored on this board. A 3.25 volt lithium battery provides
additional battery power for system data back-up.
Firmware
ROM1 - 27C4096
ROM2 - 27C4096
ROM3 - 27C4096
Fuses
NONE
Jumpers
NONE
Sensors
NONE
Switches
NONE
Test Points
ROM 1, 2 or 3: Pin 40 + 5 vdc
Summary of Contents for OF2200
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