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Dell Vostro 7620 Service Manual - Page 62

Wireless antenna 2, Install

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Steps Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest and keyboard assembly. NOTE: The palm-rest and keyboard assembly consists of the following components: ● Keyboard ● Wireless antenna (2) Next steps 1. Install the system board. 2. Install the power button with optional fingerprint reader. 3. Install the power-button board. 4. Install the touchpad. 5. Install the speakers (tweeters). 6. Install the speakers (woofers). 7. Install the I/O board. 8. Install the display assembly. 9. Install the heat sink. 10. Install the left fan and the right fan. 11. Install the power-adapter port. 12. Install the battery. 13. Install the wireless card. 14. Install the base cover. 15. Follow the procedure in After working inside your computer. 62 Removing and installing components

Section	Page
Vostro 7620 Service Manual	1
Contents	3
Working inside your computer	6
Safety instructions	6
Before working inside your computer	6
Radiation Exposure Statement	7
Electrostatic discharge—ESD protection	7
ESD field service kit	8
Transporting sensitive components	9
After working inside your computer	9
Removing and installing components	10
Recommended tools	10
Screw list	10
Major components of Vostro 7620	11
Base cover	13
Removing the base cover	13
Installing the base cover	15
Memory module	17
Removing the memory module	17
Installing the memory module	18
Solid-state drive	19
Removing the M.2 2230 solid-state drive	19
Installing the M.2 2230 solid-state drive	21
Removing the M.2 2280 solid-state drive	22
Installing the M.2 2280 solid-state drive	23
Wireless card	24
Removing the wireless card	24
Installing the wireless card	25
Battery	27
Lithium-ion battery precautions	27
Removing the battery	27
Installing the battery	28
Power-adapter port	29
Removing the power-adapter port	29
Installing the power-adapter port	30
Fan	31
Removing the left fan	31
Installing the left fan	32
Removing the right fan	33
Installing the right fan	34
Heat sink	35
Removing the heat sink	35
Installing the heat sink	36
Removing the heat sink (from computers with a discrete graphics card)	37
Installing the heat sink (in computers with a discrete graphics card)	38
Display assembly	39
Removing the display assembly	39
Installing the display assembly	41
I/O board	42
Removing the I/O board	42
Installing the I/O board	44
Speakers	45
Removing the speakers (woofers)	45
Installing the speakers (woofers)	46
Removing the speakers (tweeters)	48
Installing the speakers (tweeters)	48
Touchpad	49
Removing the touchpad	49
Installing the touchpad	50
Power-button board	51
Removing the power-button board	51
Installing the power-button board	52
Power button with optional fingerprint reader	53
Removing the power button with optional fingerprint reader	53
Installing the power button with optional fingerprint reader	55
System board	56
Removing the system board	56
Installing the system board	58
Palm-rest and keyboard assembly	60
Removing the palm-rest and keyboard assembly	60
Installing the palm-rest and keyboard assembly	61
Drivers and downloads	63
System setup	64
BIOS overview	64
Entering BIOS setup program	64
Navigation keys	64
Boot Sequence	65
System setup options	65
System and setup password	69
Assigning a system setup password	69
Deleting or changing an existing system setup password	70
Clearing CMOS settings	70
Clearing BIOS (System Setup) and System passwords	71
Updating the BIOS	71
Updating the BIOS in Windows	71
Updating the BIOS using the USB drive in Windows	71
Updating the BIOS in Linux and Ubuntu	71
Updating the BIOS from the F12 One-Time boot menu	72
Troubleshooting	73
Handling swollen Lithium-ion batteries	73
Locate the Service Tag or Express Service Code of your Dell computer	73
System-diagnostic lights	74
SupportAssist diagnostics	75
Built-in self-test (BIST)	75
M-BIST	75
LCD Built-in Self Test (BIST)	76
Recovering the operating system	76