Acer Chromebook 311 User manual

Acer Chromebook 311/ C733/ C733T/
C733TU/ C733U
LIFECYCLE EXTENSION
GUIDE

i
Self-Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Disassembly Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
FRU (Field Replaceable Unit) List . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Exploded Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
Check for updates yourself. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
Factory reset your Chromebook. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35

Self-Repair 1-1
Self-Repair
This chapter highlights the limited self-repair capabilities of the product.
Prior performing self-repair, familiarize yourself with the Safety Guidelines and
Recommended Equipment sections first as described in the chapter "Disassembly
Procedures".
Depending on model, the following key components are eligible for self-repair (if
applicable);
Battery pack
HDD / SSD module
DIMM module(s)
WLAN module
LTE module
If a particular key component is listed and thus would be eligible for self-repair, but is
not described in the "Disassembly Procedures" section, then this component is either not
present on the respective model, or it is present but embedded on the motherboard and
therefore not eligible for self-repair.
NOTE:
NOTE:
Do not attempt to replace other components than those listed above.
NOTE:
NOTE:
For replacement parts, always use only Acer certified components in order to
safeguard quality, optimum system performance, stability and reliability of the
product.
NOTE:
NOTE:
Any damage to the product that occur during self-repair, or which has occurred as
a result of a careless or unsuccessful self-repair attempt, is not covered by the
standard product warranty.
Software Recovery 0
This product has embedded software recovery tools which can be used to either perform
a partial or full software recovery, but also to create a Factory Default recovery media.
For more information about the software recovery options, how to perform a software
recovery or creating a Factory Default recovery media, please refer to the chapter
"Recovery" which is available in the User Manual of the product.
NOTE:
NOTE:
In the event of not being able to create a Factory Default recovery media, it is
possible to obtain a copy of the recovery media through Acer Customer Service
(http://www.acer.com/support)
This is not a free of charge service.

1-2 Disassembly Procedures
Disassembly Procedures
Safety Guidelines 0
This chapter contains step by step procedures on how to remove and de-install
components from the computer. Use the following safety guidelines to ensure your
personal safety. Each procedure included in this chapter assumes that you are preparing
your computer for recycling and disposal. By performing any of these procedures you
acknowledge that any remaining warranty applicable to your computer will be voided.
Before you start any of the procedures in this chapter, make sure to read the following
safety guidelines and the respective instructions within the chapter.
CAUTION!
Turn off your computer and disconnect all power sources before opening the
computer cover or panels.
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap
or by periodically touching an unpainted metal surface at the same time as
touching a connector on the back of the computer.
Take off any metal objects on your arms or fingers such as bracelets, rings or
watches and make sure your hands are completely dry. Even if your unit is
unplugged, there may still be some remaining electric charge.
If a component does not come out easily, do not forcefully remove it. Instead,
check that you are removing it correctly and that no wires or other parts are in the
way.
When you disconnect a cable, pull on its connector or on its pull-tab, not on the
cable itself. Some cables have connectors with locking tabs; if you are
disconnecting this type of cable, press in on the locking tabs before you disconnect
the cable.
Recommended Equipment 0
The following equipment are recommended to do the following maintenance
procedures:
Wrist grounding strap and conductive mat
Flat screwdriver
Philips screwdriver #0 and #1
Plastic tweezers
Flat plastic pry

Disassembly Procedures 1-3
WEEE Annex VII Component 0
These components are classified as requiring selective treatment:
Battery pack
WLAN module
Touchpad module
USB board
Mainboard
LCD panel

1-4 Disassembly Procedures
Pre-disassembly Instructions 0
Do the following prior to starting any maintenance procedures:
1. Place the system on a stable work surface.
2. Remove the power adapter from the USB Type-C port (A) as shown in Figure 1-1 or
from the USB Type-C port (C) as shown in Figure 1-2.
3. Remove the microSD card from the microSD card slot (B) (Figure 1-1).
4. Remove all cables from system.
Figure 1-1. AC Adapter Outlet & microSD Card Slot
Figure 1-2. AC Adapter Outlet
NOTE:
NOTE:
Make sure the system is completely powered off.
AB
C

Disassembly Procedures 1-5
Base Cover Removal 0
1. Remove twelve (12) screws from the base cover (Figure 1-3).
Figure 1-3. Base Cover Removal
2. Using a scribe, carefully pry open the base cover starting from the gap between the
base cover and top assembly next to the LCD hinge (as indicated in yellow)
(Figure 1-4).
3. Slide the scribe along the edges of the base cover in the direction indicated until all
the latches have been released (Figure 1-4).
Figure 1-4. Base Cover Removal

1-6 Disassembly Procedures
4. Lift the base cover from the left side of the system and remove the base cover from
the system in the direction indicated (Figure 1-5).
Figure 1-5. Base Cover Removal

Disassembly Procedures 1-7
Battery Pack Removal 0
Prerequisite:
Base Cover Removal
1. Locate the battery (A) on the top assembly (Figure 1-6).
2. Peel off the piece of tape from the keyboard FPC and battery connector (Figure 1-6).
Figure 1-6. Battery Pack Removal
3. Disconnect the battery cable (B) from the mainboard connector (C) (Figure 1-7).
Figure 1-7. Battery Pack Removal
A
C
B

1-8 Disassembly Procedures
4. Remove the battery pack from the system (Figure 1-8).
Figure 1-8. Battery Pack Removal
IMPORTANT:
+
Follow local regulations for battery disposal.
WEEE Annex VII Component: Battery Pack

Disassembly Procedures 1-9
WLAN (Wireless Local Area Network) Module Removal 0
Prerequisite:
Battery Pack Removal
1. Locate the WLAN module (A) on the top assembly (Figure 1-9).
Figure 1-9. Component Location
2. Disconnect WLAN antennas cables (B) from the WLAN module connectors
(Figure 1-10).
3. Remove one (1) screw (C) securing the WLAN module in place (Figure 1-10).
A
C
B
E
D
C
B

1-10 Disassembly Procedures
Figure 1-10. WLAN Module Removal
4. Remove the WLAN module (A) from the mainboard connector (D) (Figure 1-11).
Figure 1-11. WLAN Module Removal
AD
WEEE Annex VII Component: WLAN Module

Disassembly Procedures 1-11
LCD Module Removal 0
Prerequisite:
Battery Pack Removal
1. Disconnect the WLAN antennas cables (A) from the WLAN module connectors
(Figure 1-12).
2. Disconnect the eDP cable (C) from the mainboard connector (D) (Figure 1-12).
3. Unroute all cables from the cable guides (as indicated by the green rectangles)
(Figure 1-12).
Figure 1-12. LCD Module Removal
4. Open the LCD module (G) to a 90-degree angle and place the system on a flat surface
as shown in Figure 1-13.
5. Remove four (4) screws (F) securing the LCD module in place (Figure 1-13).
Figure 1-13. LCD Module Removal
A
C
D
G
F
F

1-12 Disassembly Procedures
6. Lift to remove the LCD module from the top assembly (Figure 1-14).
Figure 1-14. LCD Module Removal
CAUTION:
!
Make sure all cables and antennas are unthreaded from the cable guides to
avoid damage during the removal process.

Disassembly Procedures 1-13
Touchpad Module Removal 0
Prerequisite:
Battery Pack Removal
1. Locate the touchpad module (D) on the top assembly. Refer to Figure 1-9.
2. Peel off the piece of tape from the touchpad connector (Figure 1-15).
Figure 1-15. Touchpad Tape Removal
3. Disconnect the touchpad FFC (E) from the mainboard connector (B) and touchpad
module connector (C) and then peel off the touchpad FFC (Figure 1-16).
4. Peel back the keyboard plate mylar (as indicated in yellow) (Figure 1-16).
Figure 1-16. Touchpad FFC Removal
C
B
E

1-14 Disassembly Procedures
5. Remove four (4) screws (G) securing the touchpad module in place (Figure 1-17).
Figure 1-17. Touchpad Module Screw Location
6. Remove the touchpad module (D) from the top assembly (Figure 1-18).
Figure 1-18. Touchpad Module Removal
CAUTION:
!
Touchpad FFC (Flexible Flat Cable) can be damaged if removed while the
mainboard connector and touchpad connector are locked.
G
E
D
WEEE Annex VII Component: Touchpad Module

Disassembly Procedures 1-15
USB Board Removal 0
Prerequisite:
LCD Module Removal
1. Locate the USB board (E) on the top assembly. Refer to Figure 1-9.
2. [For C733T & C733 only] Disconnect the 30-pin USB board FFC (D) from the mainboard
connector (A) and USB board connector (C) and remove the 30-pin USB board FFC
(Figure 1-19).
3. Disconnect the 40-pin USB board FFC (G) from the mainboard connector (H) and USB
board connector (F) and remove the 40-pin USB board FFC (Figure 1-19).
4. [For C733T & C733 only] Disconnect the USB board power cable (K) from the
mainboard connector (J) and USB board connector (L) (Figure 1-19).
5. Remove one (1) screw (B) securing the USB board in place (Figure 1-19).
Figure 1-19. USB Board Removal
DA
B
GH
C
FJ
K
L

1-16 Disassembly Procedures
6. Remove the USB board (E) from the top assembly (Figure 1-20).
Figure 1-20. USB Board Removal
7. [For C733T & C733 only] Peel off the USB board power cable (K) from the top
assembly (Figure 1-21).
Figure 1-21. USB Board Removal
E
WEEE Annex VII Component:
USB Board
K

Disassembly Procedures 1-17
8. Flip over the USB board and remove the adhesive rubber (M) from the USB board
(Figure 1-22).
Figure 1-22. Adhesive Rubber Removal
NOTE:
NOTE:
The adhesive rubber is a separate service part and must be removed and
re-installed when replacing the USB board.
CAUTION:
!
The 30-pin and 40-pin USB board FFC (Flexible Flat Cable) can be damaged if
removed while the mainboard connector and USB board connector are
locked.
M

1-18 Disassembly Procedures
Mainboard Removal 0
Prerequisite:
WLAN (Wireless Local Area Network) Module Removal and
LCD Module Removal
1. Locate the mainboard (B) on the top assembly. Refer to Figure 1-9.
2. [For C733T & C733 only] Disconnect the 30-pin USB board FFC from the mainboard
connector (C) (Figure 1-23).
3. Disconnect the 40-pin USB board FFC from the mainboard connector (D)
(Figure 1-23).
4. [For C733T & C733 only] Disconnect the USB board power cable from the mainboard
connector (E) (Figure 1-23).
5. Disconnect the touchpad FFC from the mainboard connector (F) (Figure 1-23).
6. Disconnect the keyboard FPC from the mainboard connector (G) (Figure 1-23).
7. Disconnect the speaker cable from the mainboard connector (H) (Figure 1-23).
8. Remove three (3) screws (A) securing the mainboard in place (Figure 1-23).
Figure 1-23. Mainboard Connector & Screw Location
CAUTION:
!
Make sure all FFCs, FPCs and cables are disconnected from the mainboard
connectors to avoid damage during the removal process.
C
GH
DF
E
A