HP 8 1401 Instruction Manual

							2.Detach the battery (2) from the display panel assembly. (The battery is attached to the display
panel assembly with double-sided adhesive.)
3.Remove the battery.
Reverse this procedure to install the battery.
Power/volume button board
DescriptionSpare part number
Power/volume button board (includes cable) 753188-001
Before removing the power/volume button board, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
Remove the power/volume button board:
1.Release the zero insertion force (ZIF) connector (1) to which the power/volume button board
cable is attached, and then disconnect the power/volume button board cable from the
system board.
Power/volume button board
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							2.Detach the power/volume button board (2) from the display panel assembly. (The power/volume
button board is attached to the display panel assembly with double-sided adhesive.)
3.Remove the power/volume button board and cable.
Reverse this procedure to install the power/volume button board.
Front-facing webcamera
DescriptionSpare part number
Front-facing webcamera (includes cable) 767236-001
Before removing the front-facing webcamera, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
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							Remove the front-facing webcamera:
1.Release the ZIF connector (1) to which the front-facing webcamera cable is attached, and then
disconnect the front-facing webcamera cable from the system board.
2.Detach the front-facing webcamera (2) from the display panel assembly. (The front-facing
webcamera is attached to the display panel assembly with double-sided adhesive.)
3.Remove the front-facing webcamera and cable.
Reverse this procedure to install the front-facing webcamera.
Front-facing webcamera
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							Rear-facing webcamera
DescriptionSpare part number
Rear-facing webcamera (includes cable) 773139-001
Before removing the rear-facing webcamera, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
Remove the rear-facing webcamera:
1.Release the ZIF connector (1) to which the rear-facing webcamera cable is attached, and then
disconnect the rear-facing webcamera cable from the system board.
2.Release the rear-facing webcamera (2) from the molding built into the display panel assembly.
3.Remove the rear-facing webcamera and cable.
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							Reverse this procedure to install the rear-facing webcamera.
Speakers
DescriptionSpare part number
Speaker Kit (includes left and right speakers and cables) 773138-001
Before removing the speakers, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
Remove the speakers:
1.Unsolder the speaker cables (1) from the system board speaker connectors.
NOTE:When installing the speakers, the red speaker cables should be soldered to the system
board “positive” terminals. The black speaker cables should be soldered to the system board
“negative” terminals.
2.Release the speaker cables (2) from the clips built into the display panel assembly.
Speakers
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							3.Detach the speakers (3) from the display panel assembly. (The speakers are attached to the
display panel assembly with double-sided adhesive.)
4.Remove the speakers and cables.
Reverse this procedure to install the speakers.
Microphone
NOTE:The microphone spare part kit includes the cable.
DescriptionSpare part number
Microphone (includes cable) 773135-001
Before removing the microphone, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
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							Remove the microphone:
1.Unsolder the microphone cables (1) from the system board microphone connectors.
NOTE:When installing the microphone, the red microphone cable should be soldered to the
system board “positive” terminal. The black microphone cable should be soldered to the system
board “negative” terminal.
2.Release the microphone (2) from the molding built into the display panel assembly.
3.Remove the microphone and cable.
Reverse this procedure to install the microphone.
Microphone
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							Antenna
DescriptionSpare part number
Antenna Kit (includes wireless antenna cable and transceiver) 773133-001
Before removing the antenna, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
Remove the antenna board:
1.Unsolder the antenna cable (1) from the system board antenna connector.
2.Detach the antenna transceiver (2) from the display panel assembly. (The antenna transceiver is
attached to the display panel assembly with double-sided adhesive.)
3.Remove the antenna transceiver and cable.
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							Reverse this procedure to install the antenna.
System board
DescriptionSpare part number
System board (equipped with an AllWinner A31S 1.00-GHz quad core processor, graphics
subsystem with UMA memory, 1.0-GB DDR3 system memory, and 16-GB eMMC hard drive)762005-001
Before removing the system board, follow these steps:
1.Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on,
and then shut it down through the operating system.
2.Disconnect the power from the tablet by unplugging the power cord from the tablet.
3.Disconnect all external devices from the tablet.
4.Remove the back cover (see 
Back cover on page 12).
5.Disconnect the battery cable from the system board (see 
Battery on page 14).
System board
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							Remove the system board:
1.Disconnect the following cables from the system board:
(1) TouchScreen ZIF connector and cable
(2) Controller ZIF connector and cable
(3) Speaker cables (must be unsoldered, see 
Speakers on page 19)
(4) Power/button board ZIF connector and cable
(5) Front-facing webcamera cable
(6) Antenna cable (must be unsoldered, see 
Antenna on page 22)
(7) Rear-facing webcamera cable
(8) Microphone cable (must be unsoldered, see 
Microphone on page 20)
2.Remove the three Phillips PM1.5×2.5 screws (1) that secure the system board to the
display panel assembly.
3.Detach the left side of the system board (2) from the display panel assembly. (The left side of the
system board is attached to the display panel assembly with double-sided adhesive.)
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