GE 5935000E10, Basic Service Manual

Page: 669 / 778

D
IRECTION
5750007-1EN, R
EV
. 1 LOGIQ E10 B
ASIC
S
ERVICE
M
ANUAL
Chapter 8 Replacement Procedures 8 - 423
8-16-7 Power Assistant Option replacement
Table 8-417 Manpower / Time and Tools
Manpower /
Time
Tools / PPE
One person /
15 minutes
Refer to: 8-2-5 "Tools needed for servicing the LOGIQ E10" on page 8-6 /
8-2-6 "PPE Required During Service" on page 8-6 .
Table 8-418 Preparations and Preparation Links
Preparations - you must perform the following steps
DO NOT TOUCH ANY BOARDS WITH INTEGRATED CIRCUITS PRIOR TO
TAKING THE NECESSARY ESD PRECAUTIONS:
1. ALWAYS CONNECT YOURSELF. THE ESD WRIST STRAP SHOULD BE
CONNECTED TO ONE OF THE TWO RECEPTICALS INTEGRATED ON THE
FRAME, SPECIFICALLY FOR THAT PURPOSE.
2. FOLLOW GENERAL GUIDELINES FOR HANDLING OF ELECTROSTATIC
SENSITIVE EQUIPMENT.
WARNING WARNING
Risk of electrical shock, system must be turned off. Avoid all contact with
electrical contacts, conductors and components. Always use non-conductive
handles designed for the removal and replacement of ESD sensitive parts. All
parts that have the potential for storing energy must be discharged or isolated
before making contact.
IF THE SHEAR WAVE OPTION IS PRESENT, MAKE SURE THE LEDS ON THE
CAPACITOR PACK ARE OFF.
Prior to removing the Card Rack Boards, the LEDs on the end of each board
should be unlit, to indicate boards are NOT powered.
WARNING WARNING
Energy Control and Power Lockout for LOGIQ E10 :
When servicing parts of the Ultrasound System where there is exposure to voltage
greater than 30 Volts:
1. TURN OFF THE SCANNER.
2. UNPLUG THE SYSTEM.
3. MAINTAIN CONTROL OF THE SYSTEM POWER PLUG.
4. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE AND
THE ON/OFF BUTTON (WHITE LIGHT ON THE OP PANEL) TO TURN OFF, AS
THERE ARE NO TEST POINTS TO VERIFY ISOLATION.
5. REMOVE THE BATTERY COVER AND DISCONNECT THE POWER CABLES
J10 and J11 (black and red) FROM THE BACKPLANE. See: 8-2-2 "Warnings" on
page 8-3 and 8-11-15 "Rear I/O replacement" on page 8-327 .
Beware that the Main Power Supply, the Batteries, Power Module, ECB Shear Wave
Capacitor Pack may be energized, even if the power is turned OFF if the cord is still
plugged into the AC Outlet.
1. Power down the system.
2. Disconnect the mains power cable from the wall outlet, all Probes and External I/O Cabling.
3. Remove the Left Side Cover and the Battery Cover.
Preparation Links (if you need more information):
• 4-2-4 "Power SHUT DOWN" on page 4-9.
• 8-6-3 "Side Cover(s)/Side Air Intake (Filter) inspection / replacement" on page 8-33.
Signed Date
TAG
&
LOCKOUT
J10
J11
J10
J11
Signed Date
TAG
&
LOCKOUT