Appendix A —Main Board Upgrades
Page A-4
VitalCare
TM
506N3 Series
Service Manual
Criticare Systems, Inc.
Installing the new
Main Board
1. Mount four (4) standoffs M/F (pn 42255B003) onto the Main
Board (PCB side without connectors) using four (4) nuts
(pn 40008B005).
2. Install LCD Display Assembly (pn 90029A001) to the Main
Board Assembly using four (4) #2 screws (pn 41258B003).
Torque at 2 in. lbs.
3. Plug display board header (pn 87282B001) into the Main Board
at
J1
or
J7
.
4. Carefully place and align the LED display board assembly
(pn 91388A001) onto the Main Board using the standoffs as a
guide and make sure header is connected into display board.
5. Mount the LED display board using six (6) P.H.M.S. screws
(pn 40995B005). Torque 5 in. lbs.
6. Slide collar over the DB-9 connector and mount this to the Main
Board using two (2) P.H.M.S. screws (pn 40995B006) and
securing with two (2) nuts (pn 40284B001).
NOTE
: Nuts will lie on top of collar plastic. Torque at 5 in. lbs.
7. Air out the bezel with an air ionizer before mounting PCB. Place
the ground tail from the membrane through the opening of the
Main Board assembly.
8. Tilt the PCB assembly so that it is on an angle. Lift the bezel up
so that the tail of the membrane slides through the opening of
the PCB assembly. Place the two together and lay back down on
the table.
9. Mount the PCB assembly to the bezel using four (4) P.H.M.S.
screws (pn 40995B005). (These are upper screws. DO NOT
tighten down.)
10.Unlock connector from membrane and attach the membrane
tail into it. Close the connector by pushing it close. Keep the
membrane straight and even.
Summary of Contents for 506DN3
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