GE LOGIQ E9 Service Manual page 563

GE
D 5535208-100, R
IRECTION
8-9-4 BEP I/O Board Assembly replacement - R3.x and earlier
Manpower /
Time
One person /
15 minutes
Table 8-130 Preparations and Preparation Links
RISK OF ELECTRICAL SHOCK, SYSTEM MUST BE TURNED OFF. AVOID ALL
WARNING WARNING
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.
DO NOT TOUCH ANY BOARDS WITH INTEGRATED CIRCUITS PRIOR TO TAKING
WARNING WARNING
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 (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 EPS (EXTENDED POWER SHUTDOWN) BATTERY AT J3 WHEN
WORKING IN THE BEP. THIS SHOULD BE DONE WHENEVER THE BEP IS OPEN AND THE
EPS IS EXPOSED AND CHANGING PARTS.
Beware that the Main Power Supply, Extended Power Shutdown 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 4-7.
• 8-5-2 "Side Covers replacement" on page 8-30.
. 2
EV
Table 8-129 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
Chapter 8 Replacement procedures
LOGIQ E9 S
Tools
M
ERVICE ANUAL
8-5.
8 - 217