Revision L MAC™ 3500 Resting ECG Analysis System 5-232021337-036Maintenance: Main CPU Board ReplacementReassembly of CPU Board1. Insert the new CPU board in place and mount using the fasteners set asideduring disassembly.NOTEWhen replacing the fasteners which hold the two grounding straps in place,be sure to route the grounding straps as shown below.2. Reassemble the top cover and display/keyboard assemblies by reversing thesteps for removal.3. Replace the battery and proceed with software, serial number, and systemsetups as described in “Software, System Setups, and Option Activation” onpage 5-24.groundingstrapgroundingstrap218A
