GE Dash Responder, Servicing Instructions

Page: 32 / 100

GE Medical Systems
Information Technologies
Servicing Manual Dash Responder V1.0 Revision F
Page 32 of 72 2004768-001
High-Voltage Capacitor
Disassembling
C
AUTION
Short circuit the capacitor as long as it is not in use, because it can show up a lethal voltage after a
certain amount of time if not short circuited.
•
Make sure that the HV-Capacitor contains no energy. If you are in doubt, that the discharging
circuit could not work properly, measure the voltage on the capacitor with an appropriate voltage
meter. Discharge the capacitor if necessary by means of resistors of about 60kOhms/10 W.
After 30 seconds capacitor is completely discharged.
•
Cut the two cable ties that fix the HV-Capacitor and remove the Capacitor.
•
Lift the capacitor of its sockets and remove the cap that cover the connector terminals at the top
and the cap that covers the bottom of the capacitor.
•
Disconnect the connectors from the capacitor.
•
Remove the plastic insulation foil.
•
Short-circuit the terminals of the capacitor by an appropriate blank wire. (Hint: Use the wire that
short-circuits the replacement capacitor for this purpose.)
Reassembling
•
Remove the short-circuit wire on the terminals of the replacement capacitor.
•
Wrap the insulation foil around the capacitor so that the edge of the foil is placed in the middle of
the side of the negative (‘-‘) terminal of the capacitor and the end of the foil coincides with the
bottom of the capacitor.
•
Put the cap on the bottom of the capacitor.
•
Connect the wires to the capacitor; use the inner terminals. Beware the polarity!
•
Put the cap on the top of the capacitor to cover the connection terminals.
•
Thread new cable ties in the sockets for the capacitor.
•
Put the capacitor on the sockets in the Dash Responder and fix it with the cable ties.
CAUTION
Check that the Dash Responder is loaded with minimum Software Version 1.01