GE LOGIQ E9 Service Manual page 504

GE
D 5573152-100, R
IRECTION
8-9-4 BEP Side I/O Board Assembly replacement - BEP6.x
Manpower /
Time
One person /
15 minutes
Table 8-135 Preparations and Preparation Links
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 BEFORE DISCONNECTING THE CAPACITOR PACK CABLES.
DO NOT TOUCH ANY BOARDS WITH INTEGRATED CIRCUITS PRIOR TO TAKING THE
WARNING WARNING
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.
Energy Control and Power Lockout for LOGIQ E9
NOTICE
WHEN SERVICING PARTS OF THE 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.
TAG
&
LOCKOUT
4. WAIT FOR AT LEAST 20 SECONDS FOR CAPACITORS TO DISCHARGE AS THERE ARE NO
Signed Date
TEST POINTS TO VERIFY ISOLATION. THE AMBER LIGHT ON THE OP PANEL ON/OFF
BUTTON WILL TURN OFF.
5. DISCONNECT THE CHARGEBOARD BATTERY AT PCN1 ON THE CHARGEBOARD WHEN
WORKING IN THE BEP. THIS SHOULD BE DONE WHENEVER THE BEP IS OPEN AND THE
CHARGEBOARD IS EXPOSED AND CHANGING PARTS.
Beware that the Main Power Supply, ChargeBoard and BEP 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, and External I/O Cabling.
3. Remove Left Side cover.
Preparation Links (if you need more information):
• 4-2-3 "Power shut down" on page 4-6.
• 8-5-3 "Side Covers replacement" on page 8-28.
8 - 220
. 2
EV
Table 8-134 Manpower / Time and Tools
Refer to:
8-2-5 "Tools needed for servicing the LOGIQ E9" on page
Preparations - you must perform the following steps
Section 8-9 - BEP (Back End Processor) parts replacement
LOGIQ E9 S
Tools
M
ERVICE ANUAL
8-5.