Ricoh DD5450 Field Service Manual page 401

6. Main PCB unit : 400 dpi (V3-V505*)
DIP switch status
DIP switch Setting
OFF
OFF
OFF
OFF
Use this setting to
upgrade the panel
PCB software when
the power is turned
off during the panel
Turn off all DIP switches.
PCB upgrading.
WARNING
Make sure to turn off the power
before replacing the battery.
Replace the battery with
a button battery (CR2450 or CR2450B).
Risk of explosion if battery is
replaced by an incorrect type.
Dispose of used battery according
to the instructions.
7. EEPROM PCB unit
Chapter 9
DIP switch Setting
ON
OFF
ON
OFF
Use this setting to
upgrade the relay
PCB software.
When replacing the Battery (BT1):
Be sure to turn off the power
before replacing the battery.
Electrical Parts Layout and Their Functions
1
OFF
OFF
CN21 CN1
OFF
CN20
ON
CN16 CN15
CN2 CN3 CN4
CN14 CN13
9
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