Smiths Medical Medfusion 3000 Series, Technical & Service Manual

Page: 84 / 184

Parts Replacement
78
40-5648-51B
Interconnect board
This section defines the steps for removing and replac -
ing the interconnect board for the Medfusion™ 3000
Series infusion pump.
Tools needed
For this disassembly procedure you will need:
• Torque screwdriver with a Phillips head
Always work at an electrostatic-controlled work sta-
tion
when disassembling the pump.
Removing the interconnect
board
1. Disconnect the pump from AC power source.
2. Open the pump housing, remove battery pack,
and separate the top and bottom halves.
3. Unplug the ribbon cable from J9 on the main
board (in most cases the other end of this ribbon
cable is glued or soldered directly into the inter-
connect board).
4. Disconnect the speaker cable from the intercon -
nect board at J2.
5. Disconnect power supply cable from interconnect
board at J3.
6. Remove the 2 pan head screws holding the board,
and carefully remove the interconnect board from
housing.
Replacing the interconnect
board
[Torque all screws to 60 in oz (0.8 Nm).]
1. Align the interconnect board with the threaded
bosses, and press firmly into place.
2. Secure it with the 2 pan head screws.
3. Attach the speaker cable to connector J2, and the
power supply cable to connector J3.
4. Close the housing and secure with 2 pan head
screws.
5. Replace the battery pack, battery cover, and secure
with 2 flat head screws.
Verify interconnect board function
Follow retest guidelines listed in the Calibration and
Adjustment section to verify pump functionality be -
fore returning it to use.
Speaker
This section defines the steps for removing and replac -
ing the speaker for the Medfusion™ 3000 Series pump.
Tools Needed
For this disassembly procedure you will need:
• Torque screwdriver with a Phillips head
Always work at an electrostatic-controlled work sta-
tion
when disassembling the pump.
Speaker removal
1. Disconnect the pump from AC power source.
2. Open the pump housing, remove battery pack,
and separate the top and bottom halves.
3. Disconnect the speaker cable from the intercon -
nect board at J2.
4. Remove the 2 pan head screws & shoulder (or
flat) washers holding the speaker to the case, and
remove the speaker from housing.
Speaker replacement
[Torque all screws to 60 in oz (0.8 Nm).]
1. Align the speaker on the round holder, and orient
the cable to run toward the interconnect board.
2. Insert the 2 pan head screws & shoulder (or flat)
washers and secure the speaker to the housing.
3. Close the housing and secure with 2 pan head
screws.
4. Replace the battery pack, battery cover, and secure
with 2 flat head screws.
Verifying speaker function
After installing the new speaker, you only need to
execute power-up testing to verify speaker function.
1. Connect the pump to AC power.
2. Turn ON the pump.
3. Listen for power-on tones. Allow power-on self-
tests to complete. If no system failure messages
appear, then the speaker is good.
Follow retest guidelines listed in the Calibration and
Adjustment section to verify pump functionality be -
fore returning it to use.