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
under license. Intel, Core, and Celeron are trademarks of Intel Corporation in 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. 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 30 Tools required ...30 Service considerations ...30 Plastic parts ...30 Cables and connectors 31 Drive handling 31 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 6
Equipment guidelines 34 Unknown user password 35 Component replacement procedures 36 Serial number ...36 Computer feet ...37 Battery ...38 Hard drive ...39 WLAN module ...41 Memory module ...44 Optical drive ...45 Switch cover ...46 Keyboard ...49 Speaker ...52 Display lid switch module 53 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 7
System DMA specifications ...91 System interrupt specifications ...92 System I/O address specifications ...93 System memory map specifications 95 7 Screw listing Phillips PM2.0×5.0 captive screw ...97 Phillips PM2.5×12.0 captive screw ...98 Phillips PM3.0×4.0 screw ...99 Phillips PM2.5×4.0 screw - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 8
RJ-11 (modem) ...126 RJ-45 (network) ...127 Universal Serial Bus ...127 10 Power cord set requirements Requirements for all countries and regions 128 Requirements for specific countries and regions 129 11 Recycling Battery ...130 Display ...130 Index ...136 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
(512 × 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 3D DriveGuard √ Fixed (removal of 1 screw required - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 11
without iAMT ● Intel 802.11a/b/g Kedron without iAMT Integrated personal area network (PAN) options by way of Bluetooth® module: Support for no-WPAN option √ √ Broadcom Bluetooth 2.0+EDR √ √ One ExpressCard/54 slot √ √ SD Card Reader supporting Secure Digital (SD) √ √ Memory Card and - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 12
enabled as default) Power requirements 65-W AC adapter with localized cable plug support √ (2-wire plug with ground pin, supports 2-pin DC connector) 6-cell, 55-Wh Li-ion battery √ 6-cell, 47-Wh Li-ion battery √ Security Supports Kensington security lock √ Operating system Preinstalled - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 13
Category Serviceability Description Computer models equipped with GLE960 system board Windows Professional √ Web Support: Windows® XP Professional √ Certified: Microsoft® WHQL √ End-user replaceable parts: AC adapter √ Battery (system) √ Hard drive √ Memory module √ Optical drive - 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 South Korea For use in Spain For use in Sweden For use in Switzerland For use in Taiwan 16 Chapter 3 Illustrated parts catalog Spare part number 495385-001 495402-001 456806-001 456618-001 495388-001 495400-181 495400-201 495400-221 495400-081 495400-051 495400-121 495400-041 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 25
Intel Celeron M processors 495395-001 Fan 431312-001 Optical drive connector board 456805-001 Broadcom Bluetooth modules (do not include Bluetooth module cable) NOTE: The Bluetooth module spare part spare part number 456594-001. See Cable Kit on page 22 for more Cable Kit spare part number - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 26
Item (15) (16) (17) (18) (19) Description Spare part number 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 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 27
(21) Description Spare part number ● For use in 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 , Venezuela, Vietnam, Yemen, Zaire, Zambia, and Zimbabwe Memory modules (PC2-5300, 667-MHz, DDR2) 2-GB 500759 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 28
-RW Double-Layer Combo Drive DVD/CD-RW Combo Drive Cable Kit (not illustrated; see Cable Kit on page 22 for more Cable Kit spare part number information) Spare part number 500762-001 500761-001 500768-001 500767-001 500766-001 456594-001 20 Chapter 3 Illustrated - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 29
2 captive screws, secured by C-clips) (2) WLAN module 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) 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
-Layer Combo Drive DVD/CD-RW Combo 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 500766-001 500763-001 500762-001 500761-001 Mass storage devices 23 - 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 ● Phillips PM2.0×5.0 captive screw ● Phillips PM2.0×4.0 screw 24 Chapter 3 Illustrated parts catalog Spare part number 417220-001 495408-001 325814-001 359118-001 490371-D01 490371-011 490371-201 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 33
. 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. 417220-001 65-W AC adapter 431312-001 Fan 441082-001 Intel 802.11a/b/g WLAN module for use in Antigua & Barbuda, Argentina, Aruba - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 34
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. 451861-001 Intel 802.11a/b/g WLAN module for use in Antigua & Barbuda, Argentina, Aruba, the Bahamas, Barbados - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 35
Optical drive connector board 495388-001 Switch cover (includes button board and cable) 495395-001 System board for use only with computer models equipped with Intel Core2 Duo processors (includes replacement thermal material and the ExpressCard assembly) Sequential part number listing 27 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 36
Spare part number Description 495398-001 Base enclosure (includes rubber feet) 495399-001 Top cover (includes TouchPad board and cable, and TouchPad Greece 495402-001 Display enclosure (includes 2 WLAN antenna transceivers and cables) 495408-001 Logo Kit 28 Chapter 3 Illustrated parts catalog - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 37
Spare part number 495410-001 500131-001 500132-001 500756-001 500757-001 500758-001 500759-001 500760-001 500761-001 500762-001 500763-001 500764-001 500765-001 500766-001 500767-001 500768-001 506445-001 506446-xx1 Description System board for use only with computer models equipped Intel Celeron M - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 38
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 39
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 40
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 41
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 42
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 43
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 38). 5. Remove the real-time clock (RTC) battery (see RTC battery on page - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 44
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 45
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. Component replacement procedures 37 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 46
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 47
power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 38). 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 48
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 49
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 50
Description Spare part number Belarus, Belgium, Belize, 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 38). - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 51
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 52
) 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 38). Remove the memory - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 53
to the computer. 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 38). Remove the optical drive: 1. Position the computer with the right side toward you - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 54
the optical drive bracket (2). Reverse this procedure to reassemble and install an optical drive. Switch cover Description Switch cover (includes button board and cable) Spare part number 495388-001 46 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 55
to the computer. 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 38). Remove the switch cover: 1. Turn the computer upside down, with the rear panel toward - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 56
6. Remove the switch cover (2) by lifting it straight up. Reverse this procedure to install the switch cover. 48 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 57
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 38). 5. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 58
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 59
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. Component replacement procedures 51 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 60
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 38). 5. Remove the keyboard (see - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 61
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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 62
and cables. Description 15.4-inch, WXGA with BrightView Spare part number 495385-001 Before removing the display assembly, follow these 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 38). 5. Disconnect - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 63
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 64
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 65
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 66
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. 58 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 67
, 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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 68
2. Remove the followng screws: (1) Three Phillips PM2.0×2.0 broad-head 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 69
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. Component replacement procedures 61 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 70
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 38). 5. Remove the following components - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 71
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 72
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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 73
models equipped with Intel Core2 Duo processors For use only with computer models equipped with Intel Celeron M processors Spare part number 495410-001 495395 first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Component replacement procedures 65 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 74
4. Remove the battery (see Battery on page 38). 5. Remove the following components: a. Hard drive (see components are removed from the defective system board and installed on the replacement system board: ● Memory module (see Memory module on page 44) ● WLAN module (see WLAN module on page 41) ● - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 75
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 connector (2) is clear of the opening in the base enclosure. 5. Lift the rear edge of the system - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 76
to replace the optical drive connector board, remove it from the connector on the system board. The optical drive connector board is available using spare part number 456805-001. Reverse the preceding procedure to install the system board. 68 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 77
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 38). 5. Remove the following components: - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 78
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 79
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 38). 5. Remove the - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 80
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. 72 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 81
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 500757-001 495383-001 506445-001 the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 38). 5. - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 82
3. Lift the processor (2) straight up and remove it. NOTE: When you install the processor, the gold triangle (3) on the processor must be aligned with the triangle (4) embossed on the processor socket. Reverse this procedure to install the processor. 74 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 83
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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 84
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. 76 Chapter 4 Removal and replacement procedures - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 85
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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 86
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 38). 5. Remove - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 87
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 88
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 89
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 90
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 91
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 92
Enable/disable floppy boot. ● Enable/disable internal network adapter boot and set the boot mode (PXE or RPL /disable USB legacy support. When enabled, USB legacy support allows the following to an AC outlet. ● Enable/disable Intel Data Execution Battery Fast Charge. 84 Chapter 5 Computer Setup - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 93
To do this ● Choose Bit-shift or LBA assisted HDD Translation Mode. ● Enable/disable Windows direct application launcher. ● Enable/disable HP Lockout. ● Enable/disable embedded WWAN Device Radio. ● Enable/disable embedded WLAN Device Radio. ● Enable/disable embedded Bluetooth Device Radio. ● Enable - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 94
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 86 Chapter 6 Specifications - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 95
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 96
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. 88 Chapter 6 Specifications - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 97
-Layer Combo Drive specifications Applicable disc Access time Random Cache buffer Data transfer rate 24X CD-ROM 8X DVD-ROM 24X CD-R 16X CD-RW 8X DVD+R 4X DVD+RW 8X DVD-R 4X DVD-RW 2.4X DVD+R(9) 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 98
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 99
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 100
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 101
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 102
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 103
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 104
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. 96 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 105
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 97 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 106
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) 98 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 107
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 99 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 108
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 100 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 109
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 101 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 110
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 102 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 111
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 103 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 112
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 104 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 113
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 105 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 114
Torx T8M2.5×3.0 broad-head 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 106 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 115
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 107 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 116
Where used: One screw that secures the system board to the base enclosure 108 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 117
Phillips PM2.0×2.0 broad-head 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 broad-head screw 109 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 118
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 110 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 119
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 111 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 120
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 112 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 121
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 113 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 122
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) 114 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 123
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 115 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 124
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 116 Chapter 7 Screw listing - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 125
8 Backup and recovery 117 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 126
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 127
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 128
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 129
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 130
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 131
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 132
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 124 Chapter 9 Connector pin assignments - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 133
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 125 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 134
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused 126 Chapter 9 Connector pin assignments - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 135
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) 127 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 136
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 137
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 138
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 139
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 140
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 141
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 133 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 142
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 143
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 144
Index A AC adapter, spare part number 24, 25 antenna, part number 18, 28 battery location 12 removal 38 spare part numbers 18, 29, 38 battery bay 12 battery latches 12 battery light 11 Bluetooth module removal 64 spare part numbers 17, 25, 26, 64 Bluetooth module cable, spare part number - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 145
support, USB 80, 84 light components 7 lights battery 11 caps lock 7 power 8 wireless 7 Logo Kit, spare part number 24, 28 M mass storage devices, spare part numbers 23 memory check 83 memory map specifications 95 memory module product description 1 removal 44 spare part numbers 19, 29, 44 memory - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 146
127 RTC battery removal 77 spare part number 18, 25, 77 Rubber Kit, spare part number 29 S Screw Kit contents 96 spare part number 24, 29 screw listing 96 SD Card Reader 9 security cable slot 10 Security menu 83 security, product description 4 serial number 14, 36 service considerations 30 - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 147
91 system fan 84 system information 82 system memory map 95 T thermal material, replacement 72 tools required 30 top components 6 top cover removal 59 spare part number 17, 28, 59 TouchPad spare part number 17, 28 TouchPad board removal 62 spare part number 62 TouchPad button board removal 62 spare - HP KS159UT | HP 550 Notebook PC - Maintenance and Service Guide - Page 148
HP 550 Notebook PC
Maintenance and Service Guide