HP KS159UT HP 550 Notebook PC - Maintenance and Service Guide
HP KS159UT - 550 - Core 2 Duo 1.8 GHz Manual
UPC - 884420899839
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HP KS159UT manual content summary:
- HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 1
HP 550 Notebook PC Maintenance and Service Guide - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 2
Intel, Core, and Celeron are trademarks of Intel services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Second Edition: December 2008 First Edition: August 2008 Document Part Number - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 3
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. The computer and the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 4
iv Safety warning notice - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 5
Cable Kit ...22 Mass storage devices ...23 Miscellaneous parts ...24 Sequential part number listing ...25 4 Removal and replacement procedures Preliminary replacement requirements 31 Tools required ...31 Service considerations ...31 Plastic parts ...31 Cables and connectors 32 Drive handling 32 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 6
Equipment guidelines 35 Unknown user password 36 Component replacement procedures 37 Serial number ...37 Computer feet ...38 Battery ...39 Hard drive ...40 WLAN module ...42 Memory module ...45 Optical drive ...46 Switch cover ...48 Keyboard ...50 Speaker ...53 Display lid switch module 54 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 7
System DMA specifications ...93 System interrupt specifications ...94 System I/O address specifications ...95 System memory map specifications 97 7 Screw listing Phillips PM2.0×5.0 captive screw ...99 Phillips PM2.5×12.0 captive screw 100 Phillips PM3.0×4.0 screw ...101 Phillips PM2.5×4.0 screw - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 8
RJ-11 (modem) ...128 RJ-45 (network) ...129 Universal Serial Bus ...129 10 Power cord set requirements Requirements for all countries and regions 130 Requirements for specific countries and regions 131 11 Recycling Battery ...132 Display ...132 Index ...138 viii - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 9
cache, √ 533-MHz FSB Intel Celeron M processors, Dual Core ● T1400 1.73-GHz processor, 533Mhz FSB √ Northbridge: Intel GME965 with up to 800-MHz FSB Northbridge: Intel GLE960 with up to 533-MHz FSB √ Southbridge: Intel ICH8M √ Intel Universal Memory Architecture (UMA) √ graphics subsystem - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 10
2, dual- channel) ● 512-MB total system memory (512 × 1) Supports 9.5-mm, 2.5-inch hard drives √ Customer-accessible √ Serial ATA √ Supports the following drives: √ ● 250-GB, 5400-rpm ● 160-GB, 5400-rpm ● 120-GB, 5400-rpm HP DriveGuard √ Fixed (removal of 1 screw required) √ Customer - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 11
boot from external USB diskette drive √ √ Supports 3-mode diskette drive √ √ HD audio - ADI1981 √ √ 56K V.92 1.5-inch data/fax modem with digital line √ √ guard Intel 82562GT √ √ S3/S4/S5 wake on LAN: DC - no √ √ S3/S4/S5 wake on LAN: AC - yes √ √ Integrated WLAN options by way - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 12
equipped with GLE960 system board SD Card Reader supporting Secure Digital (SD) √ Memory Card and MultiMediaCard (MMC) Ports Audio-in AC adapter with localized cable plug support √ (2-wire plug with ground pin, supports 2-pin DC connector) 6-cell, 47-Wh Li-ion battery √ Security Supports - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 13
Category Serviceability Description Computer models equipped with GLE960 system board Windows Vista Professional √ Web Support: Windows® XP Professional √ Certified: Microsoft® WHQL √ End-user replaceable parts: AC adapter √ Battery (system) √ Hard drive √ Memory module √ Optical - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 14
2 External component identification Top components TouchPad Item Component Function (1) TouchPad* (2) Left TouchPad button* Moves the pointer and selects or activates items on the screen. Functions like the left button on an external mouse. (3) Right TouchPad button* Functions like the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 15
access a wireless network to establish a wireless connection. ● Blue: An integrated wireless device, such as a wireless local area network (WLAN) device, the HP Broadband Wireless Module, and/or a Bluetooth device, is on. ● Amber: All wireless devices are off. ● When the computer is off, press the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 16
Item (5) Component Power light (6) Speaker Keys Function ● On: The computer is on. ● Blinking: The computer is in the Sleep state (Windows Vista) or Standby (Windows XP). ● Off: The computer is off or in Hibernation. Produces sound. Item (1) Component esc key (2) fn key (3) Windows logo - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 17
stereo speakers, headphones, ear buds, a headset, or television audio. Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Supports the following optional digital card formats: ● Secure Digital (SD) Memory Card ● MultiMediaCard (MMC) Front components 9 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 18
Right-side components Item (1) (2) Component Optical drive Security cable slot Function Reads an optical disc. Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrent, but it may not prevent the computer from being mishandled or stolen. 10 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 19
VGA monitor or projector. Connects an AC adapter. Connects a network cable. Connect optional USB devices. Supports optional ExpressCards. ● Amber: A battery is charging. ● Turquoise: A battery is close to full charge capacity. ● Blinking amber: A battery that is the only available power source - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 20
Battery release latches (2) Battery bay Vents (6) (4) Memory module compartment (5) WLAN module compartment (select models only) (6) Hard drive bay Function Release the battery from the battery bay. Holds the battery support through Help and Support. Holds the hard drive - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 21
, refer to the section of the Regulatory, Safety and Environmental Notices that applies to your country or region. These notices are located in Help and Support. Wireless antennae (select models only) 13 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 22
product's hardware components. The part number helps a service technician to determine what components and parts are needed. ● Model Description (4). This is the number you use to locate documents, drivers, and support for your notebook. ● Warranty Period (5). This number describes the duration (in - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 23
Computer major components Computer major components 15 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 24
For use in Slovenia For use in South Korea For use in Spain For use in Sweden For use in Switzerland 16 Chapter 3 Illustrated parts catalog Spare part number 495385-001 495402-001 456806-001 456618-001 508816-001 495388-001 495400-181 495400-201 495400-221 495400-081 495400-051 495400-121 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 25
part information): 456614-001 ExpressCard slot protective insert WLAN module compartment cover Memory computer models equipped with Intel GME965 graphics chipset, Intel UMA 495410-001 spare part number 456594-001. See Cable Kit on page 22 for more Cable Kit spare part number information. - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 26
500756-001 Intel Celeron M Dual processors: ● T1400 1.73-GHz (1-MB L2 cache, 533-MHz FSB) 506446-001 RTC battery 449137-001 Modem module NOTE: The modem module spare part kit does not include a modem module cable. The modem module cable is included in the Cable Kit, spare part number 456954 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 27
Item Description Spare part number For use in Antigua & Barbuda, Argentina, Aruba, the Bahamas, Barbados, and South 441082-003 and Korea 451861-003 ● For use in Japan 441082-292 and 451861-291 Intel 802.11b/g WLAN module for use in Thailand 451861-004 Broadcom 802.11b/g WLAN modules: ● For - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 28
Memory modules Supports the following SATA optical drives: DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe 507116-001 DVD/CD-RW Combo Drive 507117-001 DVD-ROM Drive 507115-001 Cable Kit (not illustrated; see Cable Kit on page 22 for more Cable Kit spare part number - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 29
compartment cover (includes one captive screw, secured by a C-clip) (3) ExpressCard slot protective insert (4) Memory module compartment cover (includes one captive screw, secured by a C-clip) (5) Optical drive bay protective insert (not illustrated) Spare part number 456614-001 Plastics Kit 21 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 30
Cable Kit Item Description Cable Kit: (1) RJ-11 jack cable (2) Display lid switch module and cable (3) Bluetooth module cable Spare part number 456594-001 22 Chapter 3 Illustrated parts catalog - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 31
Drive DVD-ROM Drive Supports the following SATA optical drives: DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe DVD/CD-RW Combo Drive DVD-ROM Drive (2) Hard drives (include bracket) 250-GB, 5400-rpm 160-GB, 5400-rpm 120-GB, 5400-rpm Spare part number 500768-001 500767-001 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 32
Miscellaneous parts Description 65-W AC adapter Logo Kit Nylon carrying case USB 1.1 diskette drive Power South Korea For use in Switzerland For use in Taiwan For use in the United Kingdom Spare part number 417220-001 495408-001 325814-001 359118-001 490371-D01 490371-011 490371-201 490371-081 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 33
a Bluetooth module cable. The Bluetooth module cable is included in the Cable Kit, spare part number 456594-001. See Cable Kit on page 22 for more Cable Kit spare part number information. 65-W AC adapter Fan Intel 802.11a/b/g WLAN module for use in Antigua & Barbuda, Argentina, Aruba, the Bahamas - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 34
's Republic of China 441086-AD1 Intel 802.11a/b/g/n WLAN module for use in South Korea 449137-001 RTC battery 450066-001 Bluetooth module for use Cable Kit, spare part number 456594-001. See Cable Kit on page 22 for more Cable Kit spare part number information. 451861-001 Intel 802.11a/b/g WLAN - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 35
kit does not include a modem module cable. The modem module cable is included in the Cable Kit, spare part number 456594-001. See Cable Kit on page 22 for more Cable Kit spare part number information. Modem module (includes modem module cable) for use in Australia and New Zealand NOTE: The modem - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 36
Spare part number Description 490371-201 Power cord for use in Brazil 490371 Israel 490371-D01 Power cord for use in Argentina 490371-D61 Power cord for use in India 495383-001 Intel Core2 Duo T5270 1.40-GHz processor (2-MB L2 cache, 800-MHz FSB, includes replacement thermal material) 495385 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 37
screw covers) 500756-001 Intel Celeron M P530 1.73-GHz processor (1-MB L2 cache, 533-MHz FSB, includes replacement thermal material) 500757-001 Intel Core2 Duo T5470 1.40-GHz processor (2-MB L2 cache, 800-MHz FSB, includes replacement thermal material) 500758-001 1-GB memory module (PC2-5300 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 38
Spare part number 500764-001 500766-001 500767-001 500768-001 506446-xx1 507115-001 507116-001 507117-001 508758-001 508759-001 508816-001 Description 6-cell, 47-Wh Li-ion battery DVD-ROM Drive (includes bezel and bracket) (PATA) DVD/CD-RW Combo Drive (includes bezel and bracket) (PATA) DVD±RW and - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 39
screwdrivers ● Torx T8 screwdriver Service considerations The following sections include some parts Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 40
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 41
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 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 42
and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When as ordinary plastic assembly aids and Styrofoam. ● Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items only - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 43
with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 44
Unknown user password If the computer you are servicing has an unknown user password, follow these steps to from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the real-time clock (RTC) battery (see RTC battery on page - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 45
product's hardware components. The part number helps a service technician to determine what components and parts are needed. ● Model Description (4). This is the number you use to locate documents, drivers, and support for your notebook. ● Warranty Period (5). This number describes the duration (in - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 46
Computer feet The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 500132-001. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below. 38 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 47
unplugging the AC adapter from the computer. Remove the battery: 1. Turn the computer upside down on a flat surface, with the battery bay toward you. 2. Slide the battery release latches (1) to release the battery. 3. Remove the battery (2) from the computer. Insert the battery into the battery bay - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 48
power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). Remove cover. The hard drive bay cover is included in the Plastics Kit, spare part number 456614-001. 4. Loosen the Phillips PM2.5×12.0 captive screw (1) that secures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 49
6. Remove the hard drive (4) from the hard drive bay. 7. If it is necessary to replace the hard drive bracket, remove the two Phillips PM3.0×4.0 hard drive bracket screws (1) from each side of the hard drive. 8. Lift the bracket (2) straight up to remove it from the hard drive. Reverse this - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 50
WLAN module Description Spare part number Intel 802.11a/b/g/n WLAN modules: ● For use in Antigua and Barbuda, Sri Lanka, Sweden, Switzerland, Turkey, Ukraine, the United Kingdom, and Uzbekistan 487330-002 Intel 802.11a/b/g WLAN modules: ● For use in Antigua & Barbuda, Argentina, Aruba, - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 51
Description Spare part number ● For use in Afghanistan, Zambia, and Zimbabwe ● For use in Japan 459263-291 Intel 802.11b/g WLAN module for use in Thailand 451861-004 cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 52
module compartment cover (2), swing it to left, and remove the cover. The WLAN module compartment cover is included in the Plastics Kit, spare part number 456614-001. 4. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module. NOTE: The black WLAN antenna cable is connected to - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 53
) 512-MB (PC2-5300, 667-MHz, DDR2) Spare part number 500759-001 500758-001 500760-001 Before removing the memory module, follow these steps: 1. Shut down the computer. AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). Remove the memory - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 54
DVD-ROM Drive Optical drive connector board (PATA) Supports the following SATA optical drives: DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe DVD/CD-RW Combo Drive DVD-ROM Drive Optical drive connector board (SATA) Spare part number 500768-001 500767-001 500766-001 456805-001 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 55
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). Remove the optical drive: 1. Position the computer with the right side toward you. 2. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 56
cover Description Switch cover (includes button board and cable) Spare part number 495388-001 Before removing the switch cover, follow these steps: the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 57
6. Remove the switch cover (2) by lifting it straight up. Reverse this procedure to install the switch cover. Component replacement procedures 49 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 58
Israel Italy Japan Latin America The Netherlands and Europe Spare part number 495400-181 495400-201 495400-221 495400-081 495400-051 unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 59
2. Remove the two slotted Torx ST8M2.5×7.0 screws that secure the keyboard to the computer. 3. Turn the computer display-side up, with the front toward you. 4. Open the computer as far as possible. 5. Lift the rear edge of the keyboard (1) and slide it back until it rests on the display assembly - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 60
6. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, and disconnect the keyboard cable (2) from the system board. 7. Remove the keyboard. Reverse this procedure to install the keyboard. 52 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 61
Speaker Description Speaker Spare part number 456593-001 Before removing the speaker, follow these computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the keyboard (see - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 62
switch module is included in the Cable Kit, spare part number Cable Kit, spare part number 456594-001. Before removing the display lid switch unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 63
with BrightView Display Cable Kit (includes 2 wireless antennae) Spare part number 495385-001 508816-001 Before removing the display assembly, follow the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Disconnect - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 64
Remove the four slotted Torx ST8M2.5×7.0 screws (1) that secure the display assembly to the computer. CAUTION: Support the display assembly when removing the following screws. Failure to support the display assembly can result in damage to the display assembly and other computer components. 8. Lift - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 65
the eight Torx T8M2.5×6.0 screws (2) that secure the display bezel to the display assembly. The rubber screw covers are available in the Rubber Kit, spare part number 500132-001. 10. Flex the inside edges of the left and right sides (1) and the top and bottom sides (2) of the display bezel until the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 66
panel cable (2) and the backlight cable (3) from the display inverter. 14. Remove the display inverter. The display inverter is available using spare part number 456618-001. 15. If it is necessary to replace the display hinges, remove the four Torx T8M2.5×6.0 screws (1) that secure the display - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 67
18. Remove the display hinges (2). The left and right display hinges are available using spare part number 456806-001. Reverse this procedure to reassemble and install the display assembly. Component replacement procedures 59 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 68
, and the TouchPad button board and cable. Description Top cover Spare part number 495399-001 Before removing the top cover, follow these steps: 1. the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 69
2. Remove the followng screws: (1) Three Phillips PM2.0×2.0 broadhead screws (2) Seven slotted Torx ST8M2.5×7.0 screws (3) One Torx T8m2.5×4.0 screw 3. Turn the computer right-side up, with the left side toward you. 4. Press in on the ExpressCard slot eject button (1) two times. The first press - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 70
10. Release the ZIF connector (4) to which the TouchPad cable is connected and disconnect the TouchPad cable (5) from the system board. 11. Remove the top cover. Reverse this procedure to install the top cover. 62 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 71
TouchPad button board NOTE: The top cover, spare part number 495399-001, includes the TouchPad board and cable by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the following components - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 72
4. Remove the two Phillips PM2.0×4.0 screws (4) that secure the TouchPad bracket to the computer. 5. Release the TouchPad bracket (1) by sliding it back. 6. Remove the TouchPad bracket (2) by lifting it straight up. 7. Remove the TouchPad button board (3). 8. Remove the TouchPad button board cable - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 73
regions except Japan and Asia Pacific countries and regions Spare part number 398393-001 Before removing the Bluetooth module, follow these steps the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 74
. Replacement thermal material is also available in the heat sink spare part kit, spare part number 456605-001. Description Spare part number For use only with computer models equipped with Intel GME965 graphics chipset, Intel UMA graphics subsystem, and PATA optical drive 495410-001 For use - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 75
the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove defective system board and installed on the replacement system board: ● Memory module (see Memory module on page 45) ● WLAN module (see WLAN module on - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 76
2. Disconnect the fan cable (3) and the Bluetooth module cable (4) from the system board. 3. Remove the following screws: (1) Two Phillips PM2.0×6.0 screws (2) Two Torx T8M2.0×4.0 screws (3) One Torx T8M2.5×4.0 screw 4. Flex the left side of the base enclosure (1) until the external monitor - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 77
the optical drive connector board, remove it from the connector on the system board. The optical drive connector board is available using spare part numbers 456805-001 (PATA) or 495386-001 (SATA). Reverse the preceding procedure to install the system board. Component replacement procedures 69 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 78
Fan Description Fan Spare part number 431312-001 Before removing the fan, follow these steps the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the following components: - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 79
high temperature conditions exist. These conditions are affected by high external temperatures, system power consumption, power management/battery conservation configurations, battery fast charging, and software requirements. Exhaust air is displaced through the ventilation grill located on the left - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 80
Description Heat sink (includes replacement thermal material) Spare part number 456605-001 Before removing the heat sink, follow first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 81
paste must be installed on all surfaces before the heat sink assembly is reinstalled. Thermal material is included with all heat sink and processor spare part kits. Reverse this procedure to install the heat sink. Component replacement procedures 73 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 82
L2 cache, 533-MHz FSB) Intel Celeron M Dual Core processors: ● T1400 1.73-GHz (1-MB L2 cache, 533-MHz FSB) Spare part number 508758-001 500757-001 495383-001 the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 83
Remove the processor: 1. Turn the system board upside down, with the USB connectors toward you. 2. Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise until you hear a click. 3. Lift the processor (2) straight up and remove it. NOTE: When you install - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 84
Kit, spare part number 456594-001. Description For use in the United States For use in Australia and New Zealand Spare part number 461749-001 461749 the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 85
3. Lift the modem module (2) straight up to disconnect it from the system board. 4. Remove the modem module. Reverse this procedure to install the modem module. Component replacement procedures 77 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 86
CMOS settings to be cleared. Description RTC battery Spare part number 449137-001 Before removing the RTC battery, follow these steps: 1. Shut down the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 87
this procedure to install the RTC battery. ExpressCard assembly NOTE: All system board spare part kits include the ExpressCard assembly. Before unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 88
Remove the ExpressCard assembly: 1. Turn the system board upside down, with the USB connectors toward you. 2. Remove the two Phillips PM2.0×8.0 screws (1) and the two Phillips PM2.0×4.0 screws (2) that secure the ExpressCard assembly to the system board. 3. Turn the system board right-side up, with - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 89
system is not working or will not load. NOTE: Some of the Computer Setup menu items listed in this guide may not be supported by your computer. NOTE: Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. NOTE: An external keyboard connected - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 90
corner of the screen. Because Computer Setup is not Windows-based, it does not support the TouchPad. Navigation and selection are by keystroke: ● To choose a menu or to select File > Save Changes and Exit. Then follow the instructions on the screen. Your preferences go into effect when the computer - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 91
of the Computer Setup menu items listed in this chapter may not be supported by your computer. File menu Select System information Restore defaults Ignore changes the computer and the batteries in the system. ● View specification information for the processor, cache and memory size, system ROM, - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 92
IDs Disk Sanitizer Diagnostics menu Select Hard Drive Self-Test options Memory Check Startup Check (select models only) To do this Enter, Disk Sanitizer erase cycle 3 times. ● Custom: Allows you to select the desired number of Disk Sanitizer erase cycles from a list. CAUTION: If you run Disk - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 93
disable CD-ROM boot. ● Enable/disable floppy boot. ● Enable/disable internal network adapter boot and set the boot mode (PXE or RPL). ● Enable/disable MultiBoot, which startup, select Disable.) ● Enable/disable USB legacy support. When enabled, USB legacy support allows the following: ◦ Use of a USB - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 94
Enable/disable fan always on while connected to an AC outlet. ● Enable/disable Intel Data Execution Prevention or AMD® PSAE Execution Disable. When Native Mode. ● Enable/disable Dual Core CPU. ● Enable/disable Secondary Battery Fast Charge. ● Choose Bit-shift or LBA assisted HDD Translation Mode. - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 95
Select Built-In Device Options Port Options To do this ● Enable/disable embedded WWAN Device Radio. ● Enable/disable embedded WLAN Device Radio. ● Enable/disable embedded Bluetooth Device Radio. ● Enable/disable LAN/WLAN Switching. When enabled, switches to a WLAN when a LAN is either unavailable - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 96
cm Height (front to rear) 3.23 to 3.58 cm Weight (equipped with optical drive, hard drive, and battery) 2.45 kg Input power 14.10 in 1.27 to 1.41 in 5.4 lbs Operating voltage Operating current Temperature zero-to-peak, 10 Hz to 500 Hz, 0.25 oct/min sweep rate 88 Chapter 6 Specifications - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 97
zero-to-peak, 10 Hz to 500 Hz, 0.5 oct/min sweep rate NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The 15.4-inch, WXGA display specifications Dimensions Height Width Diagonal Number of colors Contrast ratio Brightness Pixel resolution Pitch Format - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 98
GB* 120-GB* Dimensions Height 9.5 mm 9.5 mm 9.5 mm Width Weight Interface type Transfer rate Security Seek times (typical read, including setting) Single track 70 mm 101 g SATA 100 : Certain restrictions and exclusions apply. Contact technical support for details. 90 Chapter 6 Specifications - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 99
with LightScribe specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM 24X CD-R 24X CD-RW 8X DVD+R 8X DVD-R 8X DVD+RW 6X DVD-RW 6X DVD±DUAL 5X DVD-RAM Transfer mode Read: Write: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CDROM - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 100
Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD 24X CD-R 24X CD-RW Transfer -RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-RAM CD-R and CD-RW CD DVD < 110 ms < 130 ms 2 MB 3,600 KB/sec 3,600 KB/sec - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 101
DMA specifications Hardware DMA System function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Available for ExpressCard DMA6 Not assigned DMA7 Not assigned *ExpressCard controller can use DMA 1, 2, or - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 102
Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 Cascaded Intel 82801DB/DBM USB2 Enhanced Host Controller-24CD COM1 Conexant AC-Link Audio Intel 82801DB/DBM SMBus Controller-24C3 Data Fax Modem with SmartCP Diskette drive Parallel port System CMOS/real - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 103
System I/O address specifications I/O address (hex) 000 - 00F 010 - 01F 020 - 021 022 - 024 025 - 03F 02E - 02F 040 - 05F 044 - 05F 060 061 062 - 063 064 065 - 06F 070 - 071 072 - 07F 080 - 08F 090 - 091 092 093 - 09F 0A0 - 0A1 I/O Address (hex) 0A2 - 0BF 0C0 - 0DF 0E0 - 0EF 0F0 - 0F1 0F2 - 0FF 100 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 104
Unused Secondary diskette drive controller Parallel port (LPT1/default) Unused FM synthesizer-OPL3 Unused VGA Reserved (parallel port/no EPP support) VGA ExpressCard controller in CPU Unused Internal modem "A" diskette controller Serial port (COM1/default) PCI configuration index register (PCIDIVO - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 105
map specifications Size 640 KB 128 KB 48 KB 160 KB 64 KB 15 MB 58 MB 58 MB 2 MB 4 GB 64 KB Memory address 00000000-0009FFFF 000A0000-000BFFFF 000C0000-000CBFFF 000C8000-000E7FFF 000E8000-000FFFFF 00100000-00FFFFFF 04800000-07FFFFFF 04800000-07FFFFFF 08000000-080FFFFF 08200000-FFFEFFFF FFFF0000 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 106
7 Screw listing This section provides specification and reference information for the screws and screw locks used in the computer. All screws listed in this section are available in the Screw Kit, spare part number 500131-001. 98 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 107
screw that secures the WLAN module compartment cover to the computer (screw is captured on the cover by a C-clip) (3) One captive screw that secures the memory module compartment cover to the computer (screw is captured on the cover by a C-clip) Phillips PM2.0×5.0 captive screw 99 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 108
Phillips PM2.5×12.0 captive screw Color Silver Quantity 1 Length 12.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: One captive screw that secures the hard drive to the computer (screw is secured to the hard drive bracket) 100 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 109
Phillips PM3.0×4.0 screw Color Silver Quantity 4 Length 4.0 mm Thread 3.0 mm Head diameter 5.0 mm Where used: 4 screws that secure the hard drive bracket to the hard drive Phillips PM3.0×4.0 screw 101 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 110
Phillips PM2.5×4.0 screw Color Black Quantity 4 Length 4.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: 2 screws that secure the WLAN module to the system board Where used: 2 screws that secure the modem module to the system board 102 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 111
Slotted Torx ST8M2.5×7.0 screw Color Black Quantity 17 Length 7.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: (1) One screw that secures the optical drive to the computer (2) Two screws that secure the keyboard to the computer Slotted Torx ST8M2.5×7.0 screw 103 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 112
Where used: 4 screws that secure the display assembly to the computer Where used: 7 screws that secure the top cover to the base enclosure Where used: 3 screws that secure the top cover to the base enclosure 104 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 113
Phillips PM2.0×4.0 screw Color Silver Quantity 16 Length 4.0 mm Thread 2.0 mm Head diameter 4.5 mm Where used: 2 screws that secure the optical drive bracket to the optical drive Where used: 8 screws that secure the display hinges to the display assembly Phillips PM2.0×4.0 screw 105 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 114
Where used: 2 screws that secure the TouchPad Bracket and TouchPad button board to the top cover Where used: 2 screws that secure the Blueotooth module to the base enclosure Where used: 2 screws that secure the ExpressCard assembly to the system board 106 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 115
Torx T8M2.5×9.0 screw Color Black Quantity 2 Length 9.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: 2 screws that secure the switch cover to the computer Torx T8M2.5×9.0 screw 107 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 116
Torx T8M2.5×3.0 broadhead screw Color Black Quantity 3 Length 3.0 mm Thread 2.5 mm Head diameter 8.0 mm Where used: 3 screws that secure the switch cover to the computer 108 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 117
Torx T8M2.5×4.0 screw Color Black Quantity 4 Length 4.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: 2 screws that secure the speaker to the computer Where used: One screw that secures the top cover to the base enclosure Torx T8M2.5×4.0 screw 109 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 118
Where used: One screw that secures the system board to the base enclosure 110 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 119
Phillips PM2.0×2.0 broadhead screw Color Black Quantity 3 Length 2.0 mm Thread 2.0 mm Head diameter 7.0 mm Where used: 3 screws that secure the top cover to the display enclosure Phillips PM2.0×2.0 broadhead screw 111 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 120
Torx T8M2.5×6.0 screw Color Black Quantity 12 Length 6.0 mm Thread 2.5 mm Heat width 5.0 mm Where used: 8 screws that secure the display bezel to the display assembly Where used: 4 screws that secure the display panel to the display enclosure 112 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 121
Phillips PM2.0×6.0 screw Color Black Quantity 1 Length 6.0 mm Thread 2.0 mm Head diameter 4.5 mm Where used: One screw that secures the system board to the base enclosure Phillips PM2.0×6.0 screw 113 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 122
Torx T8M2.0×4.0 screw Color Black Quantity 2 Length 4.0 mm Thread 2.0 mm Head diameter 4.5 mm Where used: 2 screws that secure the optical drive connector board to the base enclosure 114 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 123
Phillips PM2.5×7.0 screw Color Black Quantity 1 Length 7.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: One screw that secures the fan to the base enclosure Phillips PM2.5×7.0 screw 115 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 124
Phillips PM2.5×7.0 captive screw Color Silver Quantity 1 Length 7.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: One captive screw that secures the fan to the base enclosure (screw is secured to the fan by a C-clip) 116 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 125
Phillips PM2.5×10.0 captive screw Color Silver Quantity 4 Length 10.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: 4 captive screws that secure the heat sink to the system board (screws are secured to the heat sink by C-clips) Phillips PM2.5×10.0 captive screw 117 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 126
Phillips PM2.0×8.0 screw Color Black Quantity 2 Length 8.0 mm Thread 2.0 mm Head diameter 4.5 mm Where used: 2 screws that secure the ExpressCard assembly to the system board 118 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 127
8 Backup and recovery 119 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 128
the computer to a previous state ● Recovering information using recovery tools NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use. Backing up - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 129
drive installed in your computer. NOTE: DVDs and DVDs with double-layer (DL) support store more information than CDs, so using them for backup reduces the number of recovery discs required. ● When backing up to discs, number each disc before inserting it into the optical drive of the computer. To - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 130
system DVD (purchased separately)" section in this guide. 3. Turn on or restart the computer hp.com/support, select your country or region, and follow the on-screen instructions. You can also order the DVD by calling technical support. For contact information, refer to the Worldwide Telephone Numbers - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 131
Windows Vista operating system DVD into the optical drive before the Windows operating system loads. 3. When prompted, press any keyboard key. 4. Follow the on-screen instructions. 5. Click Next. 6. Select Repair your computer. 7. Follow the on-screen - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 132
and folders ● Scheduling automatic backups ● Creating recovery points ● Recovering information NOTE: For detailed instructions, perform a search for these topics in Help and Support. NOTE: In case of system instability, HP recommends that you print the recovery procedures and save them for later use - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 133
screen instructions. NOTE: For additional information on initiating a recovery in Windows, perform a search for this topic in Help and Support. and drivers. Software, drivers, and updates not installed by HP must be manually reinstalled. To recover your operating system and programs, follow - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 134
9 Connector pin assignments Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground 126 Chapter 9 Connector pin assignments - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 135
External monitor Pin Signal 1 Red analog 2 Green analog 3 Blue analog 4 Not connected 5 Ground 6 Ground analog 7 Ground analog 8 Ground analog 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock External monitor 127 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 136
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused 128 Chapter 9 Connector pin assignments - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 137
RJ-45 (network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground RJ-45 (network) 129 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 138
where the power cord set will be used. ● The power cord sets must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC, as required by the power system of each country or region. ● The appliance coupler must meet the mechanical configuration of an EN 60 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 139
5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration. 3. The appliance coupler, flexible cord, and wall plug must bear a "T" mark and registration number in accordance with the Japanese Dentori Law. The flexible cord must be Type VCT or VCTF, 3-conductor, 1.00-mm² conductor size. The wall - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 140
battery in general household waste. Follow the local laws and regulations in your area for computer battery carefully. NOTE: Materials Disposal. This HP product contains mercury in the backlight in www.eiae.org. This section provides disassembly instructions for the display assembly. The display - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 141
Perform the following steps to disassemble the display assembly: 1. Remove all screw covers (1) and screws (2) that secure the display bezel to the display assembly. 2. Lift up and out on the left and right inside edges (1) and the top and bottom inside edges (2) of the display bezel until the bezel - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 142
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 143
10. Remove the display panel frame (2) from the display panel. 11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover (2) and swing it outward. 13. Remove the backlight cover. 14. Turn the display panel right-side up. Display 135 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 144
15. Remove the backlight cables (1) from the clip (2) in the display panel. 16. Turn the display panel upside down. WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this component and causing exposure to the mercury. 17. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 145
18. Remove the backlight from the backlight frame. 19. Disconnect the display panel cable (1) from the LCD panel. 20. Remove the screws (2) that secure the LCD panel to the display rear panel. 21. Release the LCD panel (3) from the display rear panel. 22. Release the tape (4) that secures the LCD - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 146
Index A AC adapter, spare part number 24, 25 antenna, disconnecting 44 antennae 13 audio, product part number 18, 28 battery location 12 removal 39 spare part number 18 spare part numbers 30, 39 battery bay 12 battery latches 12 battery light 11 Bluetooth module removal 65 spare part numbers - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 147
Setup 85 left-side components 11 legacy support, USB 81, 85 light components 7 lights battery 11 caps lock 7 power 8 wireless 7 Logo Kit, spare part number 24, 29 M mass storage devices, spare part numbers 23 memory check 84 memory map specifications 97 memory module product description 1 Index 139 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 148
11 pin assignments 128 RJ-11 jack cable release 67 spare part number 22 RJ-45 jack location 11 pin assignments 129 RTC battery removal 78 spare part number 18, 26, 78 Rubber Kit, spare part number 29 S Screw Kit contents 98 spare part number 25, 29 screw listing 98 SD Card Reader 9 security cable - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 149
93 system fan 86 system information 83 system memory map 97 T thermal material, replacement 73 tools required 31 top components 6 top cover removal 60 spare part number 17, 28, 60 TouchPad spare part number 17, 28 TouchPad board removal 63 spare part number 63 TouchPad button board removal 63 spare - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 150
HP 550 Notebook PC
Maintenance and Service Guide