HP RP7 Maintenance & Service Guide HP RP7 Retail System Model 7800 - Page 103

Battery, Rear Metal Plate EMI shield

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Battery The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery. WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: Do not attempt to recharge the battery. Do not expose to temperatures higher than 60°C (140ºF). Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water. Replace the battery only with the HP spare designated for this product. CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object. NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/ recycle. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 46). 2. Remove the rear I/O panel (Rear I/O Panel on page 49). 3. Remove the mounting bracket cover (Mounting Bracket Cover on page 53). 4. Remove the display head back panel (Display Head Back Panel on page 54). 5. Remove the display head from the stand (Removing the Display Head from the Stand on page 90). 6. Lay the display head face down on a surface covered by a clean, dry cloth. 7. Remove the rear metal plate (Rear Metal Plate (EMI shield) on page 91). Battery 93

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Battery
The battery that comes with the computer provides power to the real-time clock. When replacing the
battery, use a battery equivalent to the battery originally installed in the computer. The computer
comes with a 3-volt lithium coin cell battery.
WARNING!
The computer contains an internal lithium manganese dioxide battery. There is a risk of
fire and burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Replace the battery only with the HP spare designated for this product.
CAUTION:
Before replacing the battery, it is important to back up the computer CMOS settings.
When the battery is removed or replaced, the CMOS settings will be cleared.
Static electricity can damage the electronic components of the computer or optional equipment.
Before beginning these procedures, ensure that you are discharged of static electricity by briefly
touching a grounded metal object.
NOTE:
The lifetime of the lithium battery can be extended by plugging the computer into a live AC
wall socket. The lithium battery is only used when the computer is NOT connected to AC power.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and
rechargeable batteries. For more information about recycling programs, go to
recycle
.
1.
Prepare the computer for disassembly (
Preparation for Disassembly
on page
46
).
2.
Remove the rear I/O panel (
Rear I/O Panel
on page
49
).
3.
Remove the mounting bracket cover (
Mounting Bracket Cover
on page
53
).
4.
Remove the display head back panel (
Display Head Back Panel
on page
54
).
5.
Remove the display head from the stand (
Removing the Display Head from the Stand
on page
90
).
6.
Lay the display head face down on a surface covered by a clean, dry cloth.
7.
Remove the rear metal plate (
Rear Metal Plate (EMI shield)
on page
91
).
Battery
93