Compaq Presario CQ20 Notebook PC - Maintenance and Service Guide
Page 37
... user password If the computer you are servicing has an unknown user password, follow these steps to clear the password: ✎ These steps also clear CMOS. 1. If you are unsure whether the computer is off or in Hibernation, turn the computer on page 4-36). 6. Disconnect the power from the ...first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the real-time clock (RTC) battery (see "Battery" on the computer. All passwords and all external devices connected to the computer. Turn on page 4-7). 5. Disconnect all...
... user password If the computer you are servicing has an unknown user password, follow these steps to clear the password: ✎ These steps also clear CMOS. 1. If you are unsure whether the computer is off or in Hibernation, turn the computer on page 4-36). 6. Disconnect the power from the ...first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the real-time clock (RTC) battery (see "Battery" on the computer. All passwords and all external devices connected to the computer. Turn on page 4-7). 5. Disconnect all...
Compaq Presario CQ20 Notebook PC - Maintenance and Service Guide
Page 68
... 4-10) c. Removal and replacement procedures RTC battery ✎ Removing the RTC battery and leaving it down the computer. Shut down through the operating system. 2. Memory module (see "Top cover" on page 4-14) e. Disconnect all passwords and CMOS settings to the computer. 3. Keyboard (see ...drive (see "Keyboard" on page 4-12) d. System board (see "WLAN module" on page 4-16) f. Description RTC battery Spare part number 449137-001 Before removing the RTC battery, follow these steps: 1. WLAN module (see "System board" on page 4-8) b. Fan (see "Hard drive" on page...
... 4-10) c. Removal and replacement procedures RTC battery ✎ Removing the RTC battery and leaving it down the computer. Shut down through the operating system. 2. Memory module (see "Top cover" on page 4-14) e. Disconnect all passwords and CMOS settings to the computer. 3. Keyboard (see ...drive (see "Keyboard" on page 4-12) d. System board (see "WLAN module" on page 4-16) f. Description RTC battery Spare part number 449137-001 Before removing the RTC battery, follow these steps: 1. WLAN module (see "System board" on page 4-8) b. Fan (see "Hard drive" on page...
Compaq Presario CQ20 Notebook PC - Maintenance and Service Guide
Page 127
... files and folders 8-2 hard drive 8-3 scheduling 8-2 base enclosure, spare part number 3-4, 3-13 battery removal 4-7 spare part number 3-13, 4-7 battery bay 2-8 battery light 2-5, 2-6 battery release latch 2-8 BIOS administrator password 5-3 Bluetooth module removal 4-41 spare part number 3-3, 3-11,... volume mute 2-3 volume up 2-3 C Cable Kit contents 3-7 spare part number 3-6, 3-7, 3-13 cables, service considerations 4-1 caps lock light 2-5 CMOS clearing 4-36 components antennae 2-1 bottom 2-8 buttons 2-3 display 2-1 front 2-6 keys 2-4 left-side 2-6 lights 2-5 right-side 2-7 top 2-1 TouchPad...
... files and folders 8-2 hard drive 8-3 scheduling 8-2 base enclosure, spare part number 3-4, 3-13 battery removal 4-7 spare part number 3-13, 4-7 battery bay 2-8 battery light 2-5, 2-6 battery release latch 2-8 BIOS administrator password 5-3 Bluetooth module removal 4-41 spare part number 3-3, 3-11,... volume mute 2-3 volume up 2-3 C Cable Kit contents 3-7 spare part number 3-6, 3-7, 3-13 cables, service considerations 4-1 caps lock light 2-5 CMOS clearing 4-36 components antennae 2-1 bottom 2-8 buttons 2-3 display 2-1 front 2-6 keys 2-4 left-side 2-6 lights 2-5 right-side 2-7 top 2-1 TouchPad...
