HP ENVY Ultrabook 4-1043cl HP Envy 4 - Maintenance and Service Guide - Page 48

RTC battery, Use a thin, non-conductive tool

Page 48 highlights

RTC battery Description RTC battery Spare part number 686922-001 Before removing the RTC battery, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the display panel (see Display panel on page 31). 5. Remove the base enclosure (see Base enclosure on page 33). 6. Disconnect the battery cable (see Battery on page 35). Remove the RTC battery: 1. Disconnect the RTC battery cable from the system board (1). Use a thin, non-conductive tool to remove the RTC battery from the socket on the system board. 2. Gently hold down the media card reader board (2), and remove the RTC battery (3). NOTE: The RTC battery is attached to the system board by foam material rather than doublesided adhesive. 40 Chapter 4 Removal and replacement procedures

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96

RTC battery
Description
Spare part number
RTC battery
686922–001
Before removing the RTC battery, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the display panel (see
Display panel
on page
31
).
5.
Remove the base enclosure (see
Base enclosure
on page
33
).
6.
Disconnect the battery cable (see
Battery
on page
35
).
Remove the RTC battery:
1.
Disconnect the RTC battery cable from the system board
(1)
. Use a thin, non-conductive tool to
remove the RTC battery from the socket on the system board.
2.
Gently hold down the media card reader board
(2)
, and remove the RTC battery
(3)
.
NOTE:
The RTC battery is attached to the system board by foam material rather than double-
sided adhesive.
40
Chapter 4
Removal and replacement procedures