GE Vivid E9, Руководство по обслуживанию

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GE H
EALTHCARE
D
IRECTION
GA091568, R
EVISION
5 VIVID E9 S
ERVICE
M
ANUAL
Chapter 8 - Replacement procedures 8 - 251
8-11-2 Back End Processor Power Supply replacement
8-11-2-1 Preparations
When preparing for the replacement, you must perform the following steps:
1.) Power down the VIVID E9.
2.) Disconnect the Mains Power Cable from the wall outlet.
3.) Disconnect all probes and external I/O cabling.
4.) Remove Left Side Cover.
5.) Remove the
BEP Cover .
a.) Loosen the BEP Cover’s fixing screw(s).
- On BEP6 there are two finger screws on the top of the BEP Cover.
- On newer BEP5 there are three Phillips screws, one on the top and one on each side of
the BEP Cover.
- On older BEP5 there is one finger screw at the top of the BEP Cover.
b.) Tilt the top of the BEP Cover away from the BEP .
c.) Set the BEP Cover aside.
WARNING WARNING
DO NOT TOUCH ANY BOARDS WITH INTEGRATED CIRCUITS PRIOR TO TAKING THE
NECESSARY ESD PRECAUTIONS.
1. ALWAYS CONNECT YOURSELF, VIA AN ARM-WRIST STRAP, TO THE ADVISED
ESD CONNECTION POINT LOCATED ON THE REAR OF THE SCANNER (NEAR THE
POWER CONNECTOR).
2. FOLLOW GENERAL GUIDELINES FOR HANDLING OF ELECTROSTATIC SENSITIVE
EQUIPMENT.
WARNING WARNING
ENERGY CONTROL AND POWER LOCKOUT FOR VIVID E9.
WHEN SERVICING PARTS OF THE SYSTEM WHERE THERE IS EXPOSURE TO
VOLTAGE GREATER THAN 30 VOLTS:
1. FOLLOW LOCK OUT/TAG OUT PROCEDURES.
2. TURN OFF THE BREAKER.
3. UNPLUG THE VIVID E9.
4. MAINTAIN CONTROL OF THE POWER PLUG.
5. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE, AS THERE ARE NO TEST POINTS TO
VERIFY ISOLATION. THE AMBER LIGHT ON THE OP PANEL ON/OFF BUTTON WILL TURN OFF.
BEWARE THAT THE MAIN POWER SUPPLY AND BACK END PROCESSOR MAY BE ENERGIZED EVEN IF THE POWER
IS TURNED OFF WHEN THE CORD IS STILL PLUGGED INTO THE AC OUTLET.
Signed Date
TAG
&
LOCKOUT