GE Vivid 3N Pro Series, Руководство по обслуживанию

Страница: 415 / 598

GE M
EDICAL
S
YSTEMS
D
IRECTION
FK091075, R
EVISION
04 V
IVID
3N P
RO
/E
XPERT
S
ERVICE
M
ANUAL
Chapter 8 Replacement Procedures 8-45
Section 8-4
Front End Parts Replacement
8-4-1 Front End Boards Replacement Procedure
NOTE: The procedures below provide the instructions for replacing the following boards:
FB, MUX, BF, FEC, RFT or IMP and RFI.
NOTE: The RF Interface Card (RFI) was introdused 1st hallf of 2004.
8-4-1-1 Tools
Use the appropriate flat and Phillips-type screw drivers and an ESD wrist band strap as indicated in the
front end boards replacement procedures.
CAUTION:
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 (TO THE RIGHT OF
THE POWER CONNECTOR).
2.FOLLOW GENERAL GUIDELINES FOR HANDLING OF ELECTROSTATIC SENSITIVE
EQUIPMENT.
8-4-1-2 Preparation
Shut down the Vivid 3N Pro/Expert ultrasound unit, as described in Chapter 3 - Installation .
8-4-1-3 Front End Boards Removal Procedure
CAUTION: FRONT END BOARDS ARE HEAVY!
FAILURE TO TAKE PRECAUTIONS WHEN LIFTING , COULD RESULT IN PERSONAL INJURY AND/
OR DAMAGE TO THE SYSTEM.
1) Remove the left side cover, as described in 8-2-2-3 "Side Covers Removal Procedure" on page 8-4 .
2) Remove the front door of the crate by unscrewing the two large screws at the top of the door, and
gently pulling the door down and lifting it off its hinges.