Compaq 8 1400 Tablet Maintenance and Service Guide IMPORTANT! This document is intended for HP authorized service providers only.
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Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation.
iv Safety warning notice
Table of contents 1 Product description ........................................................................................................... 1 2 External component identification ..................................................................................... 2 3 Illustrated parts catalog .................................................................................................... 4 Locating the serial number, product number, and model number .............................................
Specifications .................................................................................................................. 25 7 Backing up and recovering your data ............................................................................. 26 Updating apps, widgets, and the operating system .................................................................... 26 Factory data reset ..................................................................................................................
1 Product description Category Description Product Name Compaq 8 1400 Tablet Processor AllWinner® A31S 1.00-GHz quad core processor Panel 7.85-in, (1024×768), 5-point IPS capacitive TouchScreen display panel Graphics PowerVR SGX544MP2*8 core Memory Supports 1.0-GB DDR3 system memory Mass storage Supports a 16.
2 2 External component identification Item Component Item Component (1) Micro SD Card Reader slot (6) Front-facing webcamera (2) Microphone (7) Power button (3) Micro USB 2.
Item Component Item Component (4) Audio-out (headphone)/Audio-in (microphone) jack (9) Speakers (2) (5) Rear-facing webcamera 3
3 Illustrated parts catalog Locating the serial number, product number, and model number The serial number and product number of your tablet are located on the left edge of the tablet. The model number of your tablet is located on the back of your tablet. You may need the information when you travel internationally or when you contact support.
Tablet major components Item Component Spare part number (1) Back cover 753185-001 (2) Front-facing webcamera (includes cable) 753192-001 (3) Rear-facing webcamera (includes cable) 753193-001 (4) Speaker Kit (includes left and right speakers and cables) 754528-001 (5) Microphone (includes cable) 754529-001 (6) Antenna Kit (includes wireless antenna cables and transceiver) 754530-001 (7) System board equipped with AllWinner A31S 1.
Item Component Spare part number (9) Power/volume button board (includes cable) 753188-001 (10) 7.85-in, TouchScreen display panel assembly (includes display panel cable and TouchScreen cable) 753189-001 Miscellaneous parts Component Spare part number 3-W, 240-V ac, 50/60-Hz, 5.0-V 2-A AC adapter 752105-001 Compaq 8 1400 Tablet equipped with AllWinner A31S 1.00-GHz quad core processor, graphics subsystem with UMA memory, 1.
4 Removal and replacement preliminary requirements Tools required You will need the following tools to complete the removal and replacement procedures: ● Magnetic screw driver ● Phillips P0 screw driver ● Plastic case utility tool Service considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures.
Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions. A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry.
Packaging and transporting guidelines Follow these grounding guidelines when packaging and transporting equipment: ● To avoid hand contact, transport products in static-safe tubes, bags, or boxes. ● Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging. ● Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations. ● Place items on a grounded surface before removing items from their containers.
Equipment guidelines Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. ● When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect a wrist strap.
5 Removal and replacement procedures Tablet component replacement procedures CAUTION: Tablet components described in this chapter should only be accessed by an authorized service provider. Accessing these parts can damage the tablet and void the warranty. This chapter provides removal and replacement procedures for authorized service provider only parts. There are as many as 7 screws that must be removed, replaced, and/or loosened when servicing the tablet.
CAUTION: Before turning the display panel assembly upside down, make sure the work surface is clear of tools, screws, and any other foreign objects. Failure to follow this caution can result in damage to the display panel assembly. 1. Place the tablet on a flat surface, display panel side down, with the SD Card slot and volume control buttons toward you. CAUTION: When inserting the plastic tool into the tablet as described in Step 2, make sure not to insert the tool into the volume control buttons area.
7. Remove the back cover (6). Reverse this procedure to install the back cover. Battery Description Spare part number Battery, 3.7-V, 3800-mAh, LI (includes cable) 752104-001 Before removing the battery, 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.
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 Description Spare 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.
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 Description Spare part number Front-facing webcamera (includes cable) 753192-001 Before removing the front-facing webcamera, follow these steps: 1. Turn off the tablet.
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.
Rear-facing webcamera Description Spare part number Rear-facing webcamera (includes cable) 753193-001 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.
Reverse this procedure to install the rear-facing webcamera. Speakers Description Spare part number Speaker Kit (includes left and right speakers and cables) 754528-001 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.
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 Description Spare part number Microphone (includes cable) 754529-001 Before removing the microphone, follow these steps: 1. Turn off the tablet.
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.
Antenna Description Spare part number Antenna board (includes wireless antenna cables and transceiver) 754530-001 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.
Reverse this procedure to install the antenna. System board Description Spare part number System board equipped with 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 753191-001 Before removing the system board, follow these steps: 22 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.
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 18) (4) Power/button board ZIF connector and cable (5) Front-facing webcamera cable (6) Antenna cable (must be unsoldered, see Antenna on page 21) (7) Rear-facing webcamera cable (8) Microphone cable (must be unsoldered, see Microphone on page 19) 2. Remove the three Phillips PM1.5×2.
4. Remove the system board (3). Reverse this procedure to install the system board.
6 Specifications Metric U.S. Width 13.63 cm 5.37 in Depth 20.03 cm 7.89 in Height 0.80 cm 0.31 in Weight (lowest weight configuration) 0.35 g 0.77 lb Dimensions Input power The tablet operates on DC power, which can be supplied by an AC or a DC power source. The AC power source must be rated at 100—240 V, 50/60 Hz. NOTE: The tablet can operate on DC power using an industry-standard micro-A or micro-B USB cable.
7 Backing up and recovering your data Updating apps, widgets, and the operating system HP recommends that you update your apps, widgets, and the operating system on a regular basis to the latest versions. Updates can resolve issues and bring new features and options to your tablet. Technology is always changing, and updating apps, widgets, and the operating system allows your tablet to run the latest technology available.
8 Power cord set requirements The wide-range input feature of the tablet permits it to operate from any line voltage from 100 to 120 volts AC, or from 220 to 240 volts AC. The 3-conductor power cord set included with the tablet meets the requirements for use in the country or region where the equipment is purchased. Power cord sets for use in other countries and regions must meet the requirements of the country or region where the tablet is used.
28 Country/region Accredited agency Applicable note number Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands KEMA 1 Norway NEMKO 1 The People's Republic of China COC 5 South Korea EK 4 Sweden CEMKO 1 Switzerland SEV 1 Taiwan BSMI 4 The United Kingdom BSI 1 The United States UL 2 1. The flexible cord must be Type HO5VV-F, 3-conductor, 1.0-mm² conductor size.
9 Recycling When a non-rechargeable or rechargeable battery has reached the end of its useful life, do not dispose of the battery in general household waste. Follow the local laws and regulations in your area for battery disposal. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, see the HP Web site at http://www.hp.com/recycle.
Index A AC adapter, spare part number 6 antenna removal 21 spare part number 5, 6, 21 Antenna Kit, spare part number 5, 6, 21 audio, product description 1 audio-in jack 3 audio-out jack 3 B back cover removal 11 spare part number 5, 6, 11 battery removal 13 spare part number 5, 6, 13 buttons power 2 volume control 2 C cables, service considerations 7 Card Reader slot 2 connectors, service considerations 7 D display panel assembly, spare part number 6, 11 display panel, product description 1 E electrostatic
R rear-facing webcamera location 3 removal 17 spare part number 5, 6, 17 wireless networking, product description 1 workstation guidelines 9 S Screw Kit, spare part number 6 sensor, product description 1 service considerations cables 7 connectors 7 plastic parts 7 serviceability, product description 1 Speaker Kit, spare part number 5, 6, 18 speakers location 3 removal 18 spare part number 5, 6, 18 system board removal 22 spare part number 5, 6, 22 T tablet major components 5 spare part number 6 specificat
