Shear Wave Capacitor Pack Replacement - GE LOGIQ E10 Basic Service Manual

D 5750007-1EN, R
IRECTION
8-13-5

Shear Wave Capacitor Pack replacement

Table 8-389 Manpower / Time and Tools
Manpower /
Time
One person /
15 minutes
Table 8-390 Preparations and Preparation Links
DANGEROUS VOLTAGES, CAPABLE OF CAUSING DEATH, ARE PRESENT IN THIS EQUIPMENT.
DANGER
DO NOT REMOVE THE CAPACITOR PACK COVER.
Risk of electrical shock, system must be turned OFF. AVOID ALL CONTACT WITH ELECTRICAL
WARNING WARNING
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.
MAKE SURE THE LEDS ON THE CAPACITOR PACK ARE OFF BEFORE REMOVING THE
CAPACITOR PACK. The Capacitor Pack can store up to 112 Volts.
If the system is going to be serviced, keep the following information and precautions in mind:
Charge indicators:
• The capacitor module has LEDs to indicate if the capacitors are charged or not.
• ONLY REMOVE THE CAPACITOR PACK WHEN LEDs ARE OFF.
Discharge times:
• 4.7 seconds after normal shutdown.
• If cables are pulled while the system is on, it takes typically 40 seconds to reach 60 Volts and 5
minutes to fully discharge (0 Volts).
do not PLUG OR UNPLUG CABLES WHEN the POWER IS ON.ONLY PLUG OR UNPLUG CABLES
WHEN the POWER IS OFF.
Energy Control and Power Lockout for LOGIQ E10:
WARNING WARNING
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.
TAG
&
3. MAINTAIN CONTROL OF THE SYSTEM POWER PLUG.
LOCKOUT
4. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE AND THE ON/OFF
Signed Date
BUTTON (WHITE LIGHT ON THE OP PANEL) TO TURN OFF, AS THERE ARE NO TEST POINTS
TO VERIFY ISOLATION.
J10
5. REMOVE THE BATTERY COVER AND DISCONNECT THE POWER CABLES J10 and J11 (black
TAG
&
LOCKOUT J11
and red) FROM THE BACKPLANE. See:
Signed Date
J10
replacement" on page
J11
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 and all Probes.
3. Allow the Capacitor Pack to discharge. LEDs OFF.
4. Remove the Left Side Cover , the Battery Cover and Capacitor Pack.
. 1
EV
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
Preparations - you must perform the following steps
8-327.
Chapter 8 Replacement Procedures
Tools / PPE
8-6.
8-2-2 "Warnings" on page 8-3
Continued
LOGIQ E10 B S
ASIC ERVICE
/
and 8-11-15 "Rear I/O
M
ANUAL
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