Removing the high voltage capacitor assembly – ZOLL M Series Defibrillator Rev R User Manual
Page 106

M Series Service Manual
96
8. Removing
the High
Voltage
Capacitor
Assembly
Tools Required
• #2 Phillips screwdriver
• Exacto-Knife
• Mylar
tape
Setup
1. Remove the Front Panel Assembly.
2. Remove the Upper Housing Assembly.
3. Remove the System Board.
4. Remove the Battery Interconnect Board.
5. Remove the High Voltage Charger
Assembly.
6. Lift the Capacitor Assembly upwards from
the chassis. (The Capacitor Assembly is still
connected to the High Voltage Module
Assembly.)
To reinstall the High Voltage Capacitor Assembly, reverse the steps.
WARNING! This unit may contain lethal voltages. You MUST completely discharge the high voltage
capacitor before removing from unit. DO NOT SHORT THE TERMINAL ENDS OF THE
CAPACITOR.
Step 1: Open the High Voltage Capacitor plastic
isolator by lifting the
Mylar
tape
.
Step 2: Bleed the excess voltage using a resistor
with values of approximately 5 kohms, 25 watts
for 10-20 seconds. Measure the voltage on the
capacitor terminals.
Step 3: When the capacitor voltage is at 0 VDC,
disconnect the inductor wires and capacitor
terminal wires.