ICU Medical LifeCare PCA, Technical & Service Manual, Page: 106 / 148

SECTION 7 REPLACEABLE PARTS AND REPAIRS
LifeCare PCA 7 - 14 Technical Service Manual
7.3.8.2
KEYPAD REPLACEMENT
Recommended tools and materials for this procedure are a 1/4 inch nutdriver, an X-acto
knife, isopropyl alcohol, and a lint-free cloth.
Replacement parts for this procedure are:
Keypad
Bracket, Grounding, Keypad
Kep Nut, 6-32, w/Conical Washer
Washer, Flat, #6
To replace the keypad, see
Figure 7-5
and
Figure 7-6
, and proceed as follows:
1. Disconnect the infuser from AC power.
2. Separate the front and rear enclosures as described in Section 7.2.2 .
3. Disconnect the ribbon cables from J10 and J11 on the MCU PWA by pulling
up on the locking tabs.
4. Using the nutdriver, remove the nut and washer that attaches the ground strap
from the keypad to the keypad grounding bracket.
5. Remove electronics assembly as described in
Section 7.3.8.10
.
6. Using the X-acto knife and needle nose pliers, remove the keypad.
7. Using isopropyl alcohol, remove any adhesive remaining on the front enclosure
assembly.
8. Remove the backing from the replacement keypad to expose the adhesive, and guide
the ribbon cables and ground strap through the front enclosure assembly.
9. Press the keypad into place on the front enclosure assembly and connect the ribbon
cables to J10 and J11 on the MCU PWA.
Note: Verify all connectors are fully seated before the front and rear enclosures
are closed and fastened.
10. Reinstall the ground strap and grounding bracket using the nut and washer that
were removed in Step 4.
11. Reassemble the infuser in the exact reverse order of disassembly.
To verify successful replacement of the keypad, perform the PVT in
Section 5.6
.