dynabook Satellite C50-K User manual

November 1th, 2022
Dynabook Laptop Components Classified as Requiring Selective Treatment
Dynabook would like to communicate the method of identifying and removing components contained
in Dynabook notebook products, including but not limited to the Satellite C50-K model, that requires
selective treatment based on the European WEEE Directive, Directive 2012/19/EU of the European
Parliament and of the Council on waste electrical and electronic equipment (WEEE).
All of the instructions provided within this letter can be reviewed in greater detail within
the Satellite C50-K Series Maintenance Manual.
Tools Required
In order to remove internal components of the Satellite C50-K some tools from the list below may
be required located in Chapter 4 Replacement Procedures of the Dynabook Maintenance
Manual.
For your safety and that of other people in the working environment, it is strongly recommended
that you use electrostatic discharge (ESD) equipment. The proper use of this equipment will
ensure successful repair work and reduce the costs for repairing damaged components.
The equipment and tools required for disassembly and reassembly are:
■ One 2 mm Phillips screwdriver
■ One 4 mmflat-blade screwdriver
■ Torx screw driver
■ Tweezers (for pulling out screws)
■ ESD mats (for the floor and work desks)
■ An ESD wrist strap or heel grounder
■ Anti-static carpets or flooring
■ Air ionizers (for highly electrostatic sensitive areas)
■ A plastic card (in credit card size)
■ Asmooth stick (0.43mm,for example:a Pick or PC Mylar)
■ SIM card tray eject pin tool
Table of Contents
(Page 2-3) Removing the Lithium Ion Battery (Main Battery, No coin cell battery)
(Page 4) Removing the SSD
(Page 5-44) Removing LCD, Printed Circuit / Wiring Boards (PCB/ PWB system board)
(Page 45-46) AC Adapter, External cables provided with the AC adapter and USB cable

1. Removing theLithium Ion Battery(Main Battery, No coin cell battery)
Pleasereferto the informationbelowfor instructionsregardingthe identification and
removal
of the Lithiumion battery.
Further maintenanceinstructions can befoundin section of the Satellite C50-K
MaintenanceManual.
Some tools are required in order to removethis component. Onceremoved, these
componentsshouldbe recycled asper local requirements.
Toremove the battery, the baseassemblymust be removed first:
4.2 Base cover
Removing the base cover
Remove the base cover according to the following procedures and Figure4- 1.
1. Turn the laptop upside down so that the bottom is facing up.
2. Remove the six M2x5 screws □,1 (This four screws have angle to fix D cover).
3. Press the cover-edge and pry up the base cover from the inner edges, starting from
the top□,2, then along the sides□,3 and then the bottom□,4.
4. Slightly shake the base cover to release the center snap on base cover□,5.
5. Remove the base cover □,6.
Figure4- 1 Removing the Base Cover

4.3 Battery Pack
Removing the battery pack
Remove the battery pack according to the following procedures and Figure4- 2.
1. Detach the Battery connector □,1.
2. Remove the four M2x3 screws □,2.
3. Remove the battery pack □,3.
Figure4- 2 Removing the Battery Pack
CAUTION:
When handling the battery pack, use cares not to short circuit the terminals. Do not drop, hit, twist or
bend the battery pack. Do not scratch or break up their casing.

2. RemovingtheSSD
Removing the SSD Card
Remove the SSD Card/WLAN Card/DIMM assembly according to the following procedures
and Figure4- 7
1. Remove the one M2x3 screw and SSD card from the motherboard □,3□,4.
Figure4- 7 Removing the SSD Card/WLAN Card/DIMM

3. Removing LCD, Printed Circuit / Wiring Boards (PCB/ PWB system board)
Beside the LCD and the main PCB, there are further small PCBs and components which
are in the scope of the WEEE Directive. The removal of these components is described in
detail in the chapter 4 of the associated maintenance manual.

Replacement Procedures
Figure4- 1 Removing the Base Cover.......................................................................................................................... 4-2
Figure4- 2 Removing the Battery Pack ....................................................................................................................... 4-3
Figure4- 3 Removing the Fan and thermal module...............................................................................................4-4
Figure4- 4 Removing the w-lan cable ....................................................................................................................4-4
Figure4- 5 Fan Cable and W-lan Cable ..................................................................................................................4-4
Figure4- 6 Checking the Thermal Pad on Thermal module...................................................................................4-4
Figure4- 7 Removing the SSD Card/WLAN Card/DIMM ........................................................................................4-5
Figure4- 8 Removing the Speakers ............................................................................................................................. 4-6
Figure4- 9 Speaker Cable routing channels on upper ...........................................................................................4-6
Figure4- 10 Removing the IO Board ........................................................................................................................... 4-7
Figure4- 11 Removing the sensor board.................................................................................................................... 4-8
Figure4- 12 Removing the release paper of sensor board adhesive.....................................................................4-8
Figure4- 13 Removing the Motherboard...............................................................................................................4-9
Figure4- 14 Removing the Touch Pad Module.......................................................................................................4-10
Figure4- 15 Removing the Touch Pad Module.......................................................................................................4-11
Figure4- 16 Location of Electronic tape & Conductive tape..................................................................................4-11
Figure4- 17 W-LAN /edp Cables Routing Channel.................................................................................................4-12
Figure4- 18 Removing the LCD Assembly ..............................................................................................................4-13
Figure4- 19 Removing the Bezel .................................................................................................................................4-14
Figure4- 20 Removing the Panel Adhesive ............................................................................................................4-14
Figure4- 21 Removing the Panel Assembly ...........................................................................................................4-14
Figure4- 22 Disconnecting the eDP Cables FFC from Camera FPC Assembly .......................................................4-14
Figure4- 23 Disconnecting the Cables from Panel Assembly ................................................................................4-14
Figure4- 24 Removing the Release Paper of Panel Adhesive ................................................................................4-14
Figure4- 25 Panel assembly explanation.................................................................................................................... 4-14
Figure4- 26 Removing the Antenna module.............................................................................................................. 4-15
Figure4- 27 Removing the Camera Module...........................................................................................................4-16
Figure4- 28 Removing LCD Hinges.............................................................................................................................. 4-17

4.2 Base cover
Removing the base cover
Remove the base cover according to the following procedures and Figure4- 1.
1. Turn the laptop upside down so that the bottom is facing up.
2. Remove the six M2x5 screws □,1 (This four screws have angle to fix D cover).
3. Press the cover-edge and pry up the base cover from the inner edges, starting from the top□,2,
then along the sides□,3 and then the bottom□,4.
4. Slightly shake the base cover to release the center snap on base cover□,5.
5. Remove the base cover □,6 .
Figure4- 1 Removing the Base Cover

Installing the Base Cover
Install the base cover according to the following procedures:
1. Align the base cover with the snaps on the logic upper assembly, and gently press downward the
edges of the base cover until clicks are heard. Make sure all the snaps are latched and secured.
2. Tighten the ten M2×5 screws□,1 (the four screws have angles) to secure the base cover to the
logic upper assembly. (as shown in Figure4- 1)

4.3 Battery Pack
Removing the battery pack
Remove the battery pack according to the following procedures and Figure4- 2.
1. Detach the Battery connector □,1.
2. Remove the four M2x3 screws □,2 .
3. Remove the battery pack □,3.
Figure4- 2 Removing the Battery Pack
CAUTION:
When handling the battery pack, use cares not to short circuit the terminals. Do not drop, hit, twist or
bend the battery pack. Do not scratch or break up their casing.

Installing the Battery Pack
Install the battery pack according to the following procedures:
1. Seat the battery pack in the correct position on the logic upper assembly and insert the battery
connector □,1□,3.
2. Tighten the four M2 x 3 screws to secure the battery pack to the logic upper assembly □,2.

CAUTION:
When removing the thermal module, keep the following in mind:
1 The thermal module can become very hot during operation. Be sure to let it cool down before
. starting the repair work.
4.4 Fan And Thermal Module
Removing the fan and thermal module
Remove the fan and thermal module according to the following procedures and
Figure4- 3 & Figure4- 4
1. Peel off the W-LAN Mylar securing the cable connector in place□,6 and disconnect the
two W-LAN antennas (White/Black color) from motherboard□,7 as shown in Figure4- 4
2. Gently pull up the W-LAN antennas out of the routing channels on fan □,8.
3. Disconnect the Fan cable from the motherboard □,1.
4. Remove the two M2x3 screws and fan □,2.
Remove the three M2x3 screws according to the number sequence (5->4->3) indicated in
5. Figure4- 3 .
6. Remove the thermal module.

Figure4- 3 Removing the Fan and thermal module
Figure4- 4 Removing the w-lan cable

Installing the thermal module
Install the fan and thermal module according to the following procedures:
1. Seat the fan in the correct position on the logic upper assembly and insert the fan connector □ 9
and tuck the fan cable into the fan hook □
10 . as shown in Figure4- 5
2. Tighten the two M2 x 3 □
2screws to secure the fan to the logic upper assembly, as show in
Figure4- 3
3. Check the greasy is attached on the thermal module as shown in Figure4- 6
4. Place the thermal module in the correct position on the motherboard
5. Tighten the three M2 x 3 screws according to the number sequence (3->4->5) indicated in
Figure4- 3 to secure the thermal module to the motherboard.
6. For the w-lan cable routing, tuck the w-lan cable into the fan hook□
11 , and wlan cable connector
insert the wlan card□
12 . Finally, paste wlan mylar on the w-lan module□ 13 as shown in Figure4-
5
Figure4- 1 Fan Cable and W-lan Cable

Figure4- 6 Checking the Thermal Pad on Thermal module

4.5 SSD Card/WLAN Card/DIMM
Removing the SSD Card/WLAN Card/DIMM
Remove the SSD Card/WLAN Card/DIMM assembly according to the following
procedures and Figure4- 7
1. Remove the one M2x3 screw and Wlan card from the motherboard □,1□,2.
2. Remove the one M2x3 screw and SSD card from the motherboard □,3□,4.
3. Remove the DDR shielding and DIMM from the motherboard □,5□,6.
Figure4- 7 Removing the SSD Card/WLAN Card/DIMM

Installing the SSD Card/WLAN Card/DIMM
Install the SSD Card/WLAN Card/DIMM according to the following procedures:
1. Seat the wlan in the correct position and tighten the one M2 x 3 screw to secure the wlan to the
motherboard assembly □,1□,2.
2. Seat the SSD in the correct position and tighten the one M2 x 3 screw to secure the wlan to the
motherboard assembly □,3□,4.
3. Seat the DIMM in the correct position and seat the shielding cover to the motherboard □,5 □,6.

4.6 Speakers
Removing the Speakers
Remove the speaker assembly according to the following procedures and Figure4- 8
Disconnect the speaker cable from the motherboard □,1.
1. Gently pull up the speaker assembly and the speaker cable out of the routing channels □,2
□,3.
Figure4- 8 Removing the Speakers

Installing the Speakers
Install the speakers according to the following procedures:
1. Seat the speakers in the correct position and secure it in place on the logic upper assembly
□,3 as shown in Figure4- 8
2. Route and secure the speaker cable in the routing channels as shown in Figure4- 9
3. Connect the speaker cable to the motherboard □,1 as shown in Figure4- 8
Figure4- 9 Speaker Cable routing channels on upper
NOTE: Take care not to pinch the cables. Make sure the routing positions of the cables
are correct and do not block any components, such as screw holes.

4.7 IO Board
Removing the IO Board
Remove the IO board according to the following procedures and Figure4- 10.
1. Disconnect the IO board FFC □,1□,2.
2. Remove one M2x3 screw□,3.
3. Gently lift up the right edge of the IO board and remove it from the logic upper assembly□,4
.
Figure4- 10 Removing the IO Board

Installing the IO Board
Install the IO board according to the following procedures:
1. Seat the IO board in the correct position on the logic upper assembly □,4.
2. Tighten one M2×3 screw to secure the IO board to the logic upper assembly □,3.
3. Connect the IO board FFC to the IO board. Make sure the FFC are properly engaged and firmly
secured □,1□,2.