RTC battery
Description
Spare part number
RTC battery
486835-001
NOTE:
Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all
passwords and CMOS settings to be cleared.
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 battery (see
Battery on page 55
).
5.
Remove the hard drive bay cover (see
Hard drive on page 59
).
Remove the RTC battery:
1.
Disconnect the RTC battery cable
(1)
from the system board.
2.
Remove the RTC battery
(2)
.
Reverse this procedure to install the RTC battery.
Component replacement procedures
69
Содержание Dv4 1140go - Pavilion Entertainment - Core 2 Duo GHz
Страница 1: ...HP Pavilion dv4 Entertainment PC Maintenance and Service Guide ...
Страница 4: ...iv Safety warning notice ...
Страница 90: ...Reverse this procedure to install the SIM connector board 82 Chapter 4 Removal and replacement procedures ...
Страница 113: ...3 Remove the audio board 4 Reverse the above procedure to install the audio board Component replacement procedures 105 ...
Страница 161: ...Where used Two screws that secure the WWAN module to the computer Phillips PM2 0 4 0 screw 153 ...
Страница 170: ...Where used Two screws that secure the enclosure to the Flush Glass display assembly 162 Chapter 7 Screw listing ...
Страница 183: ...Audio out headphone Pin Signal 1 Audio out left channel 2 Audio out right channel 3 Ground Audio out headphone 175 ...
Страница 185: ...RJ 11 modem Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused RJ 11 modem 177 ...
Страница 188: ...Universal Serial Bus Pin Signal 1 5 VDC 2 Data 3 Data 4 Ground 180 Chapter 9 Connector pin assignments ...
Страница 202: ......