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Compaq Prosignia Desktop 340 Series Maintenance & Service Manual

Compaq desktop computer maintenance & service guide
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Maintenance & Service Guide
Prosignia Desktop 340 Series Computer
Document Part Number: 320695-001
December 2002
This document provides the reader with basic information for maintaining
the computer. It contains detailed instructions for the removal and
replacement of all components, spare part numbers for all replacement
parts, information on clearing and setting passwords, and instructions for
resetting CMOS.

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Summary of Contents for Compaq Prosignia Desktop 340 Series

  • Page 1 Maintenance & Service Guide Prosignia Desktop 340 Series Computer Document Part Number: 320695-001 December 2002 This document provides the reader with basic information for maintaining the computer. It contains detailed instructions for the removal and replacement of all components, spare part numbers for all replacement parts, information on clearing and setting passwords, and instructions for resetting CMOS.
  • Page 2 © 2002 Compaq Information Technologies, L.P. Compaq, the Compaq logo, and Prosignia are trademarks of Compaq Information Technologies Group, L.P. in the U.S. and other countries. Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S. and other countries.

  • Page 3: Table Of Contents

    1 Product Description 1.1 System Design ............. . . 1–2 1.2 Computer Features.
  • Page 4 4.2 Hood ..............4–2 4.3 Power Supply .

  • Page 5: Product Description

    Product Description This chapter describes the model offerings and features of the Compaq Prosignia 340 Series Computer. Compaq Prosignia Desktop 340 Series Computer 1–1...

  • Page 6: System Design

    Chapters 3 and 4. Computer Features The Compaq Prosignia 340 Series Computer ships with a mouse and keyboard. A Compaq color monitor or other compatible monitor, which is also required to operate the computer, does not ship with the computer.

  • Page 7: Rear Panel Connectors

    Parallel Port 2nd Serial Port Audio Out Game Port Audio In Microphone Video AC Power < Voltage Select Switch AGP Card Slot > PCI Card Slot PCI Card Slot PCl/ISA Combination Slot Compaq Prosignia Desktop 340 Series Computer Product Description 1–3...

  • Page 8: Serial Number Location

    Product Description Serial Number Location The serial number is located at the rear of the computer, below the power supply. 1–4 Compaq Prosignia Desktop 340 Series Computer...

  • Page 9: Spare Parts

    Spare Parts This chapter provides an illustrated parts breakdown and a listing of spare parts. Compaq Prosignia Desktop 340 Series Computer 2–1...

  • Page 10: System Unit

    Spare Parts System Unit 2–2 Compaq Prosignia Desktop 340 Series Computer...

  • Page 11: System Unit

    Item Description Front Bezel with bezel blank and power button Hood sssembly Chassis System rear I/O panel Power supply Compaq Prosignia Desktop 340 Series Computer System Unit Spare Parts Spare Part 149804-001 149800-001 not spared 149805-001 136337-001 2–3...

  • Page 12: Mass Storage Devices

    Spare Parts 2.2 Mass Storage Devices 2–4 Compaq Prosignia Desktop 340 Series Computer...
  • Page 13 8/4/32C CD-RW drive 40X CD-ROM drive 10X DVD drive with mounting screws 10/40X DVD drive Other drives Zip 100 drive Zip 250 drive *Not shown Compaq Prosignia Desktop 340 Series Computer Mass Storage Devices Spare Parts Spare Part 136338-001 161431-001 168027-001 161432-001...

  • Page 14: Cables

    Spare Parts 2.3 Cables 2–6 Compaq Prosignia Desktop 340 Series Computer...
  • Page 15 Diskette drive cable Miscellaneous cable kit, includes Audio cable, 21”, (288489-002) IDE cable, 12.5” (179048-001) (N/A this product) NIC wake up cable (179056-001) (N/A this product) *Not shown Compaq Prosignia Desktop 340 Series Computer Cables Spare Parts Spare Part 136340-001 142766-001...

  • Page 16: Standard And Optional Boards

    Spare Parts 2.4 Standard and Optional Boards 2–8 Compaq Prosignia Desktop 340 Series Computer...
  • Page 17 Network Interface Cards PCI 10/100 Base-T NIC with remote wakeup Intel Pro 10/100 NIC Compaq 10/100 NIC 11 MB/sec PCI wireless LAN *Not shown Compaq Prosignia Desktop 340 Series Computer Standard and Optional Boards Spare Parts Spare Part 187672-001 174742-001...

  • Page 18: Miscellaneous Parts

    Altec ACS 233 speakers, Australia Altec ACS 233 speakers, Europe Altec ACS 233 speakers, Japan Altec ACS 233 speakers, U.K. Altec ACS 233 speakers, U.S. *Not shown 2–10 Miscellaneous Parts Compaq Prosignia Desktop 340 Series Computer Spare Part 161734-001 149807-001 166861-001 304284-001 125773-011 125773-021...

  • Page 19: Keyboards

    Model P75 21” Model V1000 19” Model V900 15” Model V500 19” Model S900 17” Model S700 Compaq Prosignia Desktop 340 Series Computer Keyboards (not illustrated) Monitors (not illustrated) Spare Parts Spare Part 135510-181 135510-051 135510-B31 135510-071 135510-106 135510-111 135510-031...
  • Page 20 Spare Parts 2–12 Compaq Prosignia Desktop 340 Series Computer...

  • Page 21: Removal And Replacement Preliminaries And Routine Care

    Packing PCBs in foam-lined box *Dual Inline Packaging (DIP) is the packaging around individual microcircuitry. These are then multi- packaged inside plastic tubes, trays, or Styrofoam. 700 volts can degrade a product. Compaq Prosignia Desktop 340 Series Computer Typical Electrostatic Voltages 35,000 V...

  • Page 22: Preventing Electrostatic Damage To Equipment

    On conductive floors or dissipative floor mats, use them on both feet with a minimum of one-megohm +/- 10% resistance between the operator and ground. Static Shielding Protection Levels Method Antistatic plastic Carbon-loaded plastic Metallized laminate 3–2 Voltage 1,500 7,500 15,000 Compaq Prosignia Desktop 340 Series Computer...

  • Page 23: Grounding Workstations

    Wrist straps and footwear straps providing one-megohm +/- 10% resistance Material handling packages Conductive plastic bags Conductive plastic tubes Conductive tote boxes Opaque shielding bags Transparent metallized shielding bags Transparent shielding tubes Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Preliminaries and Routine Care 3–3...

  • Page 24: Routine Care

    When cleaning debris from under the keys, review all rules in Section 3.2.1 before following these procedures: CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from under Ä the keys. 3–4 Compaq Prosignia Desktop 340 Series Computer...

  • Page 25: Cleaning The Monitor

    Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer. 3.3.1 Tools and Software Requirements To service the computer, you need the following: Torx T-15 screwdriver (Compaq screwdriver, part number 161946-001) Flat-bladed screwdriver Diagnostics software Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Preliminaries and Routine Care 3–5...

  • Page 26: Screws

    If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.

  • Page 27: Removal And Replacement Procedures

    During disassembly, label each cable as you remove it, noting its position and routing. Keep all screws with the units removed. Ä CAUTION: The screws used in the computer are of different thread sizes and lengths; using the wrong screw in a component may damage the unit. Compaq Prosignia Desktop 340 Series Computer 4–1...

  • Page 28: Hood

    The screws will remain attached to the hood. 3. Grasp the bottom of the hood and pull back slightly while lifting the hood off the computer. To replace the hood, reverse this sequence. 4–2 Compaq Prosignia Desktop 340 Series Computer...

  • Page 29: Power Supply

    3. Remove the four screws that secure the power supply to the rear of the chassis. 4. Slide the power supply to the front of the unit and remove it from the chassis. To replace the power supply, reverse this sequence. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–3...

  • Page 30: Mass Storage Devices

    Removal and Replacement Procedures 4.4 Mass Storage Devices Item Description Optical drive Diskette drive Hard drive 4–4 Compaq Prosignia Desktop 340 Series Computer...

  • Page 31: Cd (Optical) Drive

    If a compact disc is jammed in the drive, insert a straightened paper clip into the manual eject hole and push firm1y. 1. Perform the preparation procedures. 2. Remove the hood. 3. Disconnect the audio 1, data 2, and power 3 cables from the CD drive. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–5...
  • Page 32 4. Remove the four screws from the side of the CD drive. 5. Pull the CD drive straight out of the front of the chassis. To replace the CD drive, reverse this sequence. 4–6 Compaq Prosignia Desktop 340 Series Computer...

  • Page 33: Diskette Drive

    4.4.2 Diskette Drive 1. Perform the preparation procedures. 2. Remove the hood. 3. Remove the power supply. (Section 4.3) Disconnect the power 1and data 2 cables from the diskette drive. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–7...
  • Page 34 5. Grasp the drive bracket assembly on both sides and pull it towards the rear of the chassis. 6. Remove the four screws from the sides of the bracket to release the drive from the bracket. To replace the diskette drive, reverse this sequence. 4–8 Compaq Prosignia Desktop 340 Series Computer...

  • Page 35: Hard Drive

    4. Remove the screw holding the hard drive and bracket to the chassis. 5. Carefully push the hard drive and bracket towards the other side of the computer, and lift them out of the chassis. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–9...
  • Page 36 Removal and Replacement Procedures 6. Remove the four screws at the bottom of the hard drive bracket to release the hard drive. To replace the hard drive, reverse this sequence. 4–10 Compaq Prosignia Desktop 340 Series Computer...

  • Page 37: Video Card

    3. Remove the screw holding the video card bracket to the chassis, and pull the video card out of the slot. To replace the video card, reverse this sequence. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–11...

  • Page 38: Network Card

    2. Remove the hood. 3. Remove the screw holding the network card bracket to the chassis, and pull the network card out of the slot. To replace the network card, reverse this sequence. 4–12 Compaq Prosignia Desktop 340 Series Computer...

  • Page 39: Fax/Modem Card

    To replace the fax/modem card, reverse this sequence. CAUTION: When replacing the fax/modem, download the latest SoftPaq containing the software from Ä www.compaq.com. If QuickRestore is used, it may not have the 56K upgrade software included. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures...

  • Page 40: Memory Module

    3. Remove the power supply. 4. Release the latches 1 at each end of the DIMM socket and unplug the DIMM 2 from the system board. To replace the memory module, reverse this sequence. 4–14 Compaq Prosignia Desktop 340 Series Computer...

  • Page 41: Rtc Battery

    - Do not expose to temperatures higher than 140 F (60 C). - Do not disassemble, crush, puncture, short circuit contacts, ordispose of in fire or water. - Replace battery only with the Compaq spare designated for this product. 1. Perform the preparation procedures.

  • Page 42: Processor

    7. Tilt the ZIF socket handle 5 away from the system board. 8. Lift the processor directly out of the ZIF socket. To replace the processor, reverse this sequence. 4–16 ). Never lift the heatsink straight up Compaq Prosignia Desktop 340 Series Computer...

  • Page 43: Front Bezel

    3. Release the latches at the middle and bottom of the bezel, then pivot the bezel up and away from the chassis. To replace the front bezel, reverse this sequence. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–17...

  • Page 44: On-Button Board

    4. Disconnect the on-button board connector from the system board. 5. Remove the two screws from the button board assembly, and pull the board off the chassis. To replace the on-button board, reverse this sequence. 4–18 Compaq Prosignia Desktop 340 Series Computer...

  • Page 45: System Board Bracket

    CAUTION: When reinstalling the system board bracket, ensure that the fingers of the I/O panel are Ä properly aligned to prevent them from being bent. If the fingers become bent, the system board may get damaged. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–19...

  • Page 46: System Board

    3. Remove the system board bracket. (Section 4.13) 4. Remove all of the cables from the system board. 5. Remove the eight screws that secure the system board to the bracket. To replace the system board, reverse this sequence. 4–20 Compaq Prosignia Desktop 340 Series Computer...

  • Page 47: 1/O Panel

    3. Remove the system board bracket. 4. Gently push the I/O panel into the chassis from the rear of the unit. To replace the I/O panel, reverse this sequence. Compaq Prosignia Desktop 340 Series Computer Removal and Replacement Procedures 4–21...
  • Page 48 Removal and Replacement Procedures 4–22 Compaq Prosignia Desktop 340 Series Computer...

  • Page 49: System Board Jumpers And Switches

    IDE (ATA) drive connector, secondary Diskette drive connector Heatsink fan connector CD-ROM audio connection Firmware jumper (do not use) Firmware jumper (do not use) Compaq Prosignia Desktop 340 Series Computer Item Description Wake on LAN connector Password jumper Power switch/LED cable connector...

  • Page 50: Clearing And Setting Passwords

    4. Replace the access panel. 5. Reconnect the power cord and the external equipment 6. Turn the computer on and allow the system to start. Go to Computer Setup (GF10) to establish the new password. 5–2 Compaq Prosignia Desktop 340 Series Computer...

  • Page 51: Resetting Cmos

    You will need to reset the password. CAUTION: The power cord must be disconnected from the power source before pushing the CMOS Ä Button. Failure to do so may damage the system board. Compaq Prosignia Desktop 340 Series Computer System Board Jumpers and Switches 5–3...
  • Page 52 System Board Jumpers and Switches 5–4 Compaq Prosignia Desktop 340 Series Computer...
  • Page 53 3–1 expansion card removal and replacement 4–11 4–12 4–13 Compaq Prosignia Desktop 340 Series Computer expansion card spare part number 2–8 fax/modem card removal and replacement 4–13 front bezel removal and replacement 4–17 front bezel spare part number 2–3 front panel controls and LEDs 1–2...
  • Page 54 4–16 RTC battery 4–15 system board 4–20 system board bracket 4–19 video card 4–11 RTC battery removal and replacement 4–15 Compaq Prosignia Desktop 340 Series Computer safety precautions 3–6 cleaning 3–4 hard drives 3–6 plastic parts 3–6 screws used 3–6 serial number location 1–4...
  • Page 55 4–19 jumpers and switches 5–1 removal and replacement 4–20 Compaq Prosignia Desktop 340 Series Computer spare part number 2–9 system unit spare part numbers 2–3 tools required, service 3–5 video card removal and replacement 4–11 Zip drive, spare part number 2–5...
  • Page 56 Index Compaq Prosignia Desktop 340 Series Computer Index–4...

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