Compaq Presario CQ40-400 Compaq Presario CQ40 Notebook PC - Maintenance and Se - Page 82

System board, Keyboard cover see

Get Compaq Presario CQ40-400 - Notebook PC PDF manuals and user guides View all Compaq Presario CQ40-400 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 82 highlights

System board Description System board (includes thermal material) Spare part number 532327-001 When replacing the system board, be sure that the following components are removed from the defective system board and installed on the replacement system board: ● RTC battery (see RTC battery on page 40) ● Memory module (see Memory module on page 42) ● WLAN module (see WLAN module on page 38) ● Modem module (select models only, see Modem module (select models only) on page 66) Before removing the system board, 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 battery (see Battery on page 34). 5. Remove the following components: a. Hard drive (see Hard drive on page 36) b. Optical drive (see Optical drive on page 35) c. Keyboard (see Keyboard on page 44) d. Keyboard cover (see Keyboard cover on page 46) e. Speaker assembly (see Speaker assembly on page 49) f. Display assembly (see Display assembly on page 51) g. Top cover (see Top cover on page 59) Remove the system board: 1. Turn the computer display-side up, with the right side toward you. 2. Disconnect the following cables from the system board: ● (1) Modem cable (see Modem module (select models only) on page 66) ● (2) Audio board cable (see Audio board on page 68) ● (3) Fan cable (see Fan on page 81) 74 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
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
System board
Description
Spare part number
System board (includes thermal material)
532327-001
When replacing the system board, be sure that the following components are removed from the defective
system board and installed on the replacement system board:
●
RTC battery (see
RTC battery
on page
40
)
●
Memory module (see
Memory module
on page
42
)
●
WLAN module (see
WLAN module
on page
38
)
●
Modem module (select models only, see
Modem module (select models only)
on page
66
)
Before removing the system board, 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 battery (see
Battery
on page
34
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
36
)
b.
Optical drive (see
Optical drive
on page
35
)
c.
Keyboard (see
Keyboard
on page
44
)
d.
Keyboard cover (see
Keyboard cover
on page
46
)
e.
Speaker assembly (see
Speaker assembly
on page
49
)
f.
Display assembly (see
Display assembly
on page
51
)
g.
Top cover (see
Top cover
on page
59
)
Remove the system board:
1.
Turn the computer display-side up, with the right side toward you.
2.
Disconnect the following cables from the system board:
●
(1)
Modem cable (see
Modem module (select models only)
on page
66
)
●
(2)
Audio board cable (see
Audio board
on page
68
)
●
(3)
Fan cable (see
Fan
on page
81
)
74
Chapter 4
Removal and replacement procedures