Sun Microsystems 60 service manual Tools Required, Electrostatic Discharge Lithium Battery

5.3.4Electrostatic Discharge

Caution –DIMMs, circuit boards, and hard drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static electricity from clothes or work environment can destroy components. Do not touch the components themselves or any metal parts. Wear the wrist strap when the system unit access panel is open.

5.3.5Lithium Battery

Caution –On Sun system boards, a lithium battery is molded into the real-time clock, SDS No. M48T59Y,MK48TXXB-XX, M48T18-XXXPCZ or M48T59W-XXXPCZ. Batteries are not customer replaceable parts. They may explode if mistreated. Do not dispose of the battery in fire. Do not disassemble it or attempt to recharge the lithium battery.

5.4Tools Required

The following tools are required to service the Ultra 60 computer (system unit).

■No. 2 Phillips screwdriver (magnetized tip suggested)

■Needle-nose pliers

■Grounding wrist strap

■Digital voltage meter (DVM)

■Antistatic mat

Place ESD-sensitive components such as motherboard, circuit cards, hard drives, DIMMs, and TOD/NVRAM on an antistatic mat. The following items can be used as an antistatic mat:

■Bag used to wrap a Sun replacement part

■Shipping container used to package a Sun replacement part

■Inner side (metal part) of the system unit cover

■Sun ESD mat, part number 250-1088 (can be purchased through your Sun sales representative)

■Disposable ESD mat; shipped with replacement parts or optional system features

5-4Sun Ultra 60 Service Manual • August 2001