Physio Control LIFEPAK 20, Service Manual

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LIFEPAK 20/20e Defibrillator/Monitor Replacement Procedures
Boardstack
(continued)
A04 Therapy PCB
Installation
(continued)
3. Carefully align the A04 Therapy PCB with the PCB support bracket (139)
and press it into position. As the A04 Therapy PCB slides down the support
bracket standoffs, ensure that the pins on the 8-pin and 60-pin stack
connectors seat with their connectors evenly.
4. Install five new 4-40

0.500 screws (185) in the five insulated standoffs
(149); torque to 6.8 in-lb.
5. Install the three 4-40 nuts (161) onto the metal standoffs along the top edge
of the A04 Therapy PCB; torque to 6.8 in-lb.
6. Install the inductive resistor assembly (A14) onto the PCB support bracket
(139) using two new 4-40

0.312 screws (173); torque to 6.8 in-lb. The
bottom bracket screw will go through the top hole of the EMI shield (278).
7. Route the A14 Inductive Resistor’s cable under the W01 Therapy Cable, the
same way as the W07 Capacitor Discharge Cable ( see illustration ).
8. Install the Boardstack Assembly .
9. Complete the process by Installing the front case .
Parts Lists Interconnect System View Therapy View Main Assemblies
9-104