GE H45011DT, Руководство по обслуживанию

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GE M
EDICAL
S
YSTEMS
D
IRECTION
2392751-100, R
EVISION
3 V
IVID
™ 4 S
ERVICE
M
ANUAL
Chapter 8 - Replacement Procedures 8-3
8-2-1-1 Preparations
Shut down the Vivid™ 4 ultrasound unit, as described in Chapter 3 - Installation .
DANGER: Electrical hazards exist at several points in the system. Familiarize yourself with all
hazardous voltages and high current levels before removing any of the covers
.
DANGER: DO NOT wear the ESD wrist band strap when removing parts from the power supply
unit. Before removing any part of the power unit, turn the power OFF and disconnect the power
cord.
CAUTION: Before removing circuit boards, turn the power OFF and wear the ESD wrist band
strap.
8-2-1-2 Order of Cover Removal
Remove the side covers in the following order:
• Side Covers, as described on page 8-4 .
• Front Cover, as described on page 8-5 .
• Rear Cover, as described on page 8-7 .
• Connector Panels, as described on page 8-8 .
• Top Cover (lower section), as described on page 8-9 .
• Gas Spring Cover, as described on page 8-13 .
• Control Console Upper Cover (Front) , as described on page 8-14 .
• Control Console Upper Cover (Rear), as described on page 8-16 .
• Control Console Lower Cover, as described on page 8-18 .
• Control Console Rear Lower Cover, as described on page 8-19 .