Dell Latitude 7320 Detachable User manual
Latitude 7320 Detachable
Service Manual
Regulatory Model: T04H
Regulatory Type: T04H001
August 2021
Rev. A01
:
:
:
© 2021 Dell Inc. Dell, EMC Dell Inc.
Chapter 1: .........................................................................................................6
......................................................................................................................................................... 6
...........................................................................................................................................................................6
— ESD............................................................................................................................................. 7
ESD.............................................................................................................................................................7
....................................................................................................................................................... 8
Chapter 2: ............................................................................................................... 9
........................................................................................................................................................................... 9
........................................................................................................................................................................................9
(SIM)..............................................................................................................................................11
SIM........................................................................................................................................................................11
SIM..................................................................................................................................................................... 12
...............................................................................................................................................................................13
Removing the display assembly................................................................................................................................ 13
Installing the display assembly.................................................................................................................................. 18
..............................................................................................................................................................................22
M.2.........................................................................................................................................................22
M.2.......................................................................................................................................................23
WWAN............................................................................................................................................................................ 25
WWAN................................................................................................................................................................25
WWAN.............................................................................................................................................................. 26
............................................................................................................................................................................ 27
....................................................................................................................................................................27
..................................................................................................................................................................28
................................................................................................................................................................... 29
..................................................................................................................................................................30
.................................................................................................................................................................................... 31
....................................................................................................................................................................... 31
.....................................................................................................................................................................32
..................................................................................................................................................................................34
Removing the right microphone modules..............................................................................................................34
Installing the right microphone modules................................................................................................................ 34
Removing the left microphone module.................................................................................................................. 35
Installing the left microphone modules.................................................................................................................. 36
...................................................................................................................................................................................... 37
..........................................................................................................................................................................37
........................................................................................................................................................................38
........................................................................................................................................................................................ 38
Removing the Kick stand...........................................................................................................................................38
Installing the kick stand..............................................................................................................................................39
.................................................................................................................................................................................. 41
Removing the kick stand hinges............................................................................................................................... 41
Installing the kick stand hinges................................................................................................................................. 41
Contents
Contents 3
................................................................................................................................................................................ 42
Removing the docking connector............................................................................................................................42
............................................................................................................................................................ 43
daughter ........................................................................................................................................................45
daughter ........................................................................................................................................... 45
daughter ......................................................................................................................................... 45
.............................................................................................................................................................................. 46
Removing the heat sink............................................................................................................................................. 46
................................................................................................................................................................47
................................................................................................................................................................................. 49
................................................................................................................................................................... 49
Installing the left fan...................................................................................................................................................50
............................................................................................................................................................. 51
..................................................................................................................................................................52
daughter ............................................................................................................................................................52
daughter ...............................................................................................................................................52
daughter ............................................................................................................................................. 53
..............................................................................................................................................................................54
Removing the power-button board........................................................................................................................ 54
Installing the power-button board...........................................................................................................................55
...................................................................................................................................................................... 56
..........................................................................................................................................................56
........................................................................................................................................................ 57
............................................................................................................................................................................................ 58
-................................................................................................................................................ 58
............................................................................................................................................................................... 59
............................................................................................................................................................................. 60
....................................................................................................................................................................................61
Removing the system board......................................................................................................................................61
Installing the system board....................................................................................................................................... 63
......................................................................................................................................................................... 66
.............................................................................................................................................................66
........................................................................................................................................................... 67
Chapter 3: ............................................................................................................................ 70
.............................................................................................................................................................................70
..............................................................................................................................................................................70
Chapter 4: ....................................................................................................................... 71
BIOS.......................................................................................................................................................................... 71
BIOS............................................................................................................................................................. 71
............................................................................................................................................................................ 71
.........................................................................................................................................................................71
..............................................................................................................................................72
..............................................................................................................................................73
........................................................................................................................................................................75
................................................................................................................................................................... 75
.........................................................................................................................................................................76
Intel Software Guard Extensions............................................................................................................................. 77
4Contents
......................................................................................................................................................................77
..............................................................................................................................................................77
POST.....................................................................................................................................................................78
........................................................................................................................................................................79
..................................................................................................................................................................... 79
.................................................................................................................................................................................. 79
........................................................................................................................................................... 80
BIOS..........................................................................................................................................................................80
BIOS Windows......................................................................................................................................... 80
BIOS USB Windows.......................................................................................................... 80
BIOS F12 One-Time...............................................................................................................................81
....................................................................................................................................................82
...................................................................................................................................................... 82
.............................................................................................................................. 82
BIOS () ............................................................................................................................... 83
Chapter 5: ................................................................................................................... 84
.............................................................................................................................................................. 84
Dell SupportAssist............................................................................................................ 84
Dell SupportAssist.......................................................................................... 85
(Built-in self-test, BIST).................................................................................................................. 85
M-BIST...........................................................................................................................................................................85
LCD (L-BIST)...................................................................................................................................... 86
LCD (BIST)...................................................................................................................................86
........................................................................................................................................................................... 86
................................................................................................................................................................. 88
..........................................................................................................................................................88
WiFi.......................................................................................................................................................................... 88
........................................................................................................................................................88
Chapter 6: Dell.............................................................................................. 89
Contents 5
:
•
•
•— ESD
• ESD
•
:
1.
2. Start > Power > Shut down
:
3.
4.
:
5.
/
●
● AC
●
● ESD (ESD)
●
●
Dell (Wake on LAN,
)
20
1
6
(ESD)
— ESD
ESD expansion DIMMs
ESD
Dell Dell
ESD
● – 20 ESD DIMM
"No POST/No Video"
● – 80 ESD DIMM
( "")
ESD
● ESD ESD
ESD
●
●
●
ESD
,
ESD
● –
ESD
ESD ESD
● – ESD
, ESD,
,
ESD
● ESD – ESD
●– ESD
● – ESD
ESD ESD
Styrofoam 12 30
● ESD – ESD
ESD ESD
7
ESD ESD ESD
ESD
● – ESD Dell
ESD
ESD Dell
:
1.
2.
3.
4.
5.
8
:
:
•
•
• (SIM)
•
•
• WWAN
•
•
•
•
•
•
•
• daughter
•
•
• daughter
•
•
•
•
•
●Philips #0
●
:
:
:
2
9
1. Latitude 5520Precision 3560
8
WLAN 1
WWAN 1
M.2 2230 M2x4 1
M.2 2280 M2x4 1
M2x3 12
3 M2x4 2
4 M2x4 3
M2x3 2
— M2x3
M2x3 - 1
- 4
— M2x3
M2x3 - 1
- 7
/ eDP M2x3 2
USB C M2x4 3
M2x3 3
M2x2 2
M2x3 2
LED M2x3 1
M2x2 26
M2x2 10
M2.5x5 (
)
6
10
1. Latitude 5520Precision 3560 ()
M2.5x3.5 (
)
4
M2.5x3.5 4
(SIM)
SIM
1.
: SIM SIM WWAN WWAN
: SIM
SIM
11
1. SIM
2. SIM
3. SIM
4. SIM SIM
5. SIM
SIM
: SIM SIM WWAN WWAN
SIM
12
1. SIM SIM
2. SIM
3. SIM SIM
4. SIM
5. SIM
1.
Removing the display assembly
Prerequisites
1. Follow the procedure in Before working inside your system.
2. Remove the SIM tray.
13
About this task
The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.
14
15
16
Steps
1. Open the kick stand to the widest possible angle, the system will power on.
NOTE: The Latitude 7320 Detachable has an automatic power-on feature. The system powers on anytime the kick
stand is opened. Follow the below steps to ensure that the system does not power on while the performing replacement
procedures.
2. With the kick stand open, shut down the computer using the operating system.
3. Place the system on a padded surface with the display assembly facing down.
17
4. CAUTION: Make sure that the system has already been powered off before removing the screws.
Remove the four (M1.6x4) screws securing the display panel to the display back cover.
5. Using a plastic scribe, push the two release holes next to the kick stand hinges to loosen the display assembly from the
display back cover.
6. Close the kick stand and flip the computer over with the display facing upwards.
7. Using a plastic scribe, pry open the display panel from the bottom-left or bottom-right corner.
8. Work your way around the top and remaining sides of the display panel.
9. Gently flip open the display assembly from the top edge and lay the display panel assembly face down.
CAUTION: Do NOT pull the display panel away from the base while the display panel is still connected to the
system board.
10. Slide the power switch on the system board from "PD1" to "PD2".
NOTE: After switching the power switch off, an LED indicator next to the switch will illuminate red, indicating that
power has been cut-off from the computer.
11. Remove the two (M2x2.5) screws that secure the display cable bracket to the system board.
12. Remove the display cable bracket from the computer.
13. Disconnect the display cable from the system board and remove the display assembly from the computer.
Installing the display assembly
Prerequisites
About this task
The following image indicates the location of the display assembly and provides a visual representation of the installation
procedure.
18
19
20
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