Audio Board Replacement Procedures | Toshiba P25 manual

4.24 Audio Board

4 Replacement Procedures

Installing the Audio Board

To install the audio board, follow the steps below and refer to the figure in the preceding section.

1.Seat the audio board and secure with two M2.5⋅6 screws.

2.Attach the left-sidespeaker cable and audio board FFC cable.

Satellite P20 Series Maintenance Manual

4-69

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Toshiba P25 manual Audio Board Replacement Procedures, Installing the Audio Board

Contents

Toshiba Corporation Trademarks CopyrightDisclaimer Preface Safety Precautions Satellite P20-25 Series Maintenance Manual Acronyms Conventions Satellite P20-25 Series Maintenance Manual Table of Contents Tests and Diagnostics CPU HDD Replacement Procedures Appendices Hardware Overview Hardware Overview Chapter Contents Hardware Overview Features Hardware Overview Features Hardware Overview Features Features Hardware Overview Hardware Overview Features System Unit Hardware Overview System Unit Hardware Overview System Unit AUX Hardware Overview Removable Drives 2.5-inch Hard Disk Drive 1 3.5-inch Floppy Disk Drive Removable DrivesRemovable Drives Hardware Overview Read speeds DVD-R/-RW Drive Matsushita SR-8177 256 Kbytes Max Toshiba SD-C2612 DVD-ROM Drive DVD Multi-Drive CD-RW Combo Drive Hardware Overview Power Supply Power Supply LB2 Power Supply Hardware Overview Hardware Overview Batteries Main BatteryBatteries Satellite P20-25 Series Maintenance Manual Status Time RTC battery Batteries Hardware Overview Chapter Troubleshooting Procedures Troubleshooting Procedures Chapter Contents Tables Figures Troubleshooting Introduction Troubleshooting Procedures Troubleshooting Introduction Troubleshooting Procedures Troubleshooting Flowchart Troubleshooting Flowchart Troubleshooting flowchart 1/2 Troubleshooting Flowchart Troubleshooting Procedures Troubleshooting flowchart 2/2 Troubleshooting Flowchart Troubleshooting Procedures Troubleshooting Procedures Troubleshooting Flowchart Power Supply Troubleshooting Troubleshooting Procedures Power Supply Troubleshooting Procedure 1 Power Status Check Troubleshooting Procedures Power Supply TroubleshootingBattery LED Battery State LED colors Definition AC-IN LED Procedure 2 Adaptor / battery replacement Procedure 3 Power supply connection check Battery Procedure 5 Replacement check Procedure 4 Diagnostic check Troubleshooting Procedures Display Troubleshooting Display Troubleshooting Procedure 2 Diagnostic check Display Troubleshooting Troubleshooting ProceduresProcedure 1 External display check Procedure 3 Connector and replacement check FDD Troubleshooting Troubleshooting Procedures FDD Troubleshooting Procedure 3 Connector check and replacement check Troubleshooting Procedures FDD TroubleshootingProcedure 1 FDD head cleaning check Keyboard Troubleshooting Troubleshooting Procedures Keyboard Troubleshooting Procedure 1 External keyboard check Troubleshooting Procedures Keyboard Troubleshooting External USB device troubleshooting process External USB Devices Troubleshooting Procedure 2 Replace system board Procedure 1 External device and connection check TV-Out Failure Troubleshooting Troubleshooting Procedures TV-Out Failure Troubleshooting Procedure 2 TV set check Troubleshooting Procedures TV-Out Failure TroubleshootingProcedure 1 TV connection check Printer Port Troubleshooting Troubleshooting Procedures Printer Port Troubleshooting Procedure 1 Diagnostic check Troubleshooting Procedures Printer Port TroubleshootingProcedure 2 Printer port loopback check Procedure 3 Replace system board Touch Pad Troubleshooting Troubleshooting Procedures TouchPad Troubleshooting Procedure 2 TouchPad replacement check Troubleshooting Procedures TouchPad TroubleshootingProcedure 1 TouchPad connection check Speaker Troubleshooting Troubleshooting Procedures Speaker Troubleshooting Procedure 1 Audio source test Troubleshooting Procedures Speaker TroubleshootingProcedure 2 Earphone test Procedure 3 Connection check Optical Drive Troubleshooting Troubleshooting Procedures Optical Drive Troubleshooting Procedure 1 Audio CD check Troubleshooting Procedures Optical Drive TroubleshootingProcedure 2 Drive cleaning check Procedure Procedure 5 Connection check and replacement check Troubleshooting Procedures Modem Troubleshooting Modem Troubleshooting Procedure 1 Telephone line connection check Modem Troubleshooting Troubleshooting ProceduresProcedure 2 Modem card connection check Procedure 3 Modem replacement check Troubleshooting Procedures Pcmcia Troubleshooting Pcmcia Troubleshooting Procedure 2 Pcmcia socket replacement check Pcmcia Troubleshooting Troubleshooting ProceduresProcedure 1 Sycard test Troubleshooting Procedures Ieee 1394 Troubleshooting Ieee 1394 Troubleshooting Procedure 3 Connection and replacement check Ieee 1394 Troubleshooting Troubleshooting ProceduresProcedure 1 Ieee 1394 device check Troubleshooting Procedures Wireless LAN Troubleshooting Wireless LAN Troubleshooting Procedure 2 Connector and replacement check Wireless LAN Troubleshooting Troubleshooting Procedures Troubleshooting Procedures Bluetooth Troubleshooting Bluetooth Troubleshooting Bluetooth Troubleshooting Troubleshooting Procedures Troubleshooting Procedures Bluetooth Troubleshooting Chapter Tests and Diagnostics Tests and Diagnostics Contents Tests and Diagnostics Diagnostic Test Tests and Diagnostics Diagnostic Test Tests and Diagnostics Executing the Diagnostic Test Executing the Diagnostic Test Executing the Diagnostic Test3. Tests and Diagnostics Tests and Diagnostics Executing the Diagnostic Test Executing the Diagnostic Test Tests and Diagnostics Tests and Diagnostics Config Check Test Config Check Test DMI Check Test DMI Check Test Tests and Diagnostics PIO Loopback Test Tests and Diagnostics PIO Loopback Test Ieee 1394 Test Ieee 1394 Test Tests and Diagnostics Speaker Audio Test Tests and Diagnostics Speaker Audio Test Fan ON/OFF Test Fan ON/OFF Test Tests and Diagnostics Tests and Diagnostics Main Battery Change Test Main Battery Charge Test FDD Test FDD Test Tests and Diagnostics CD-ROM Test Tests and Diagnostics CD-ROM Test Keyboard Test Keyboard Test Tests and Diagnostics Tests and Diagnostics Keyboard Test Keyboard Test Tests and Diagnostics Mouse Pad Test Tests and Diagnostics Mouse Pad Test Mouse Pad Test Tests and Diagnostics Tests and Diagnostics LCD Pixels Mode Test LCD Pixels Mode Test Lid Switch Test Tests and Diagnostics Lid Switch Test HDD R/W Test Tests and Diagnostics HDD R/W Test HDD R/W Test Tests and Diagnostics LAN Test Tests and Diagnostics LAN Test LAN Test Tests and Diagnostics RTC Test Tests and Diagnostics RTC Test CD Control Button Test CD Control Button Test Tests and Diagnostics Tests and Diagnostics RTC Test Chapter Replacement Procedures Replacement Procedures General Replacement Procedures General General Replacement Procedures Replacement Procedures General Safety Precautions Before You Begin Assembly Procedures Disassembly Procedures Tools and Equipment Battery Replacement Procedures BatteryRemoving the Battery Pack Removing the battery pack Installing the Battery Pack Replacement Procedures Battery PC Card PC Card Replacement ProceduresRemoving a PC Card Pressing the eject button Removing the PC Card Replacement Procedures PC Card Installing the PC Card Removable modules Replacement Procedures Removable modules Removing the Main Module Removable modules Replacement ProceduresUnlock the main module bay lock Removing the main module Engage the main module bay latch lock Installing the Main Module Optical Drive Optical Drive Replacement ProceduresDisassembling the Optical Drive Removing the bracket screws Replacement Procedures Optical Drive Reassembling the Optical Drive TV Tuner Replacement Procedures TV TunerDisassembling the TV Tuner Remove seven M2⋅8 screws securing the TV tuner case Secure the lid of the TV tuner case with seven M2⋅8 screws TV Tuner Replacement ProceduresReassembling the TV Tuner Removable HDD Replacement Procedures Removable HDDDisassembling the Removable HDD Opening the removable HDD container Removing the HDD case screws Removable HDD Replacement Procedures Replacement Procedures Removable HDD Reassembling the Removable HDD Removable FDD Replacement Procedures Removable FDDDisassembling the Removable FDD Removing the FDD bracket screws Reassembling the Removable FDD Removable FDD Replacement Procedures Replacement Procedures Wireless LAN Unit Wireless LAN UnitRemoving the Wireless LAN Unit Lift off the wireless LAN compartment cover 11 Removing the wireless LAN unit Wireless LAN Unit Replacement Procedures Installing the Wireless LAN Unit Expansion Memory Expansion Memory Replacement ProceduresRemoving the Expansion Memory 12 Removing the expansion memory cover 13 Removing the expansion memory Replacement Procedures Expansion Memory Installing the Expansion Memory Replacement Procedures Modem / Bluetooth Unit Modem / Bluetooth UnitRemoving the Modem / Bluetooth Unit 14 Removing the modem / Bluetooth unit cover 15 Removing the modem / Bluetooth unit screws Modem / Bluetooth Unit Replacement Procedures Installing the Modem / Bluetooth Unit 12 CPU 12 CPU Replacement ProceduresRemoving the CPU 16 Removing the CPU compartment cover 17 Removing the heat sink Replacement Procedures 12 CPU 18 Removing the CPU Installing the CPU 13 HDD 13 HDD Replacement Procedures 19 Removing the HDD unit cover screws Replacement Procedures 13 HDDRemoving the HDD 20 Removing the HDD unit case screws 21 Removing the aluminum HDD shielding and connector Installing the HDD Keyboard Keyboard Replacement ProceduresRemoving the Keyboard Open the display panel 23 Removing keyboard cable and keyboard Replacement Procedures KeyboardRemove two M2.5⋅3 silver screws securing the keyboard Installing the Keyboard Top Cover TOP Cover Replacement ProceduresRemoving the Top Cover Remove the keyboard, HDD and main module 25 Removing the screws from the computer underside Replacement Procedures TOP Cover Installing the Top Cover Function Key Board Replacement Procedures Function Key BoardRemoving the Function Key Board Remove the keyboard, HDD, main module and top cover Installing the Function Key Board Function Key Board Replacement Procedures Replacement Procedures LED / Power Button Board LED / Power Button BoardRemoving the LED / Power Button Board 27 Removing the LED/power button board Installing the LED / Power Button Board LED / Power Button Board Replacement Procedures TouchPad Replacement Procedures TouchPadRemoving the TouchPad 28 Removing the TouchPad button board Installing the TouchPad TouchPad Replacement Procedures Replacement Procedures Display Assembly Display AssemblyRemoving the Display Assembly 29 Removing the wireless LAN compartment cover 31 Removing the hinge cover Display Assembly Replacement Procedures30 Removing the wireless LAN compartment cover Replacement Procedures Display Assembly Installing the Display Assembly Removing the System Board Replacement Procedures System BoardSystem Board Remove the four hexagonal port screws System Board Replacement Procedures34 Removing the hexagonal port screws Remove the low I/O cover 35 Removing the system board screws and cables Seat the system board and secure with three M2.5⋅6 screws Installing the System Board 36 Removing the Direct Play cover assembly Replacement Procedures Direct Play Button BoardDirect Play Button Board Removing the Direct Play Button Board Installing the Direct Play Button Board Direct Play Button Board Replacement Procedures CIR Board Replacement Procedures CIR BoardRemoving the CIR Board 37 Removing the CIR board Installing the CIR Board CIR Board Replacement Procedures Direct play LED board Replacement Procedures Direct play LED boardRemoving the Direct Play LED Board 38 Removing the direct play LED board Secure the direct play LED FPC to the system board Direct play LED board Replacement ProceduresInstalling the Direct Play LED Board Audio Board Replacement Procedures Audio BoardRemoving the Audio Board 39 Removing the audio board screws Installing the Audio Board Audio Board Replacement Procedures Speakers Replacement Procedures SpeakersRemoving the Speakers 40 Removing the speaker screws 41 Removing the speakers Speakers Replacement ProceduresRemove two M2.5⋅4 screws securing each speaker Installing the Speakers Fan Set Fan Set Replacement ProceduresRemoving the Fan Set 42 Removing the inner chassis fan screws 43 Removing the outer chassis fan screws Replacement Procedures Fan Set Installing the Fan Set Display Mask Replacement Procedures Display MaskRemoving the Display Mask 44 Removing the display mask screws Installing the Display Mask Display Mask Replacement Procedures FL Inverter Board Replacement Procedures FL Inverter BoardRemoving the FL Inverter Board 45 Removing the FL inverter board Installing the FL Inverter Board FL Inverter Board Replacement Procedures LCD Module Replacement Procedures LCD ModuleRemoving the LCD Module 46 Removing the LCD module 47 Removing the LCD cable Pull out LCD cable from LCD connector Secure LCD cable with one M2.5⋅4 screw Installing the LCD Module Appendices Appendices Appendix Contents Figure B.1 System Board FRDSY* Bottom View Table D-7 App-vi Appendix a Handling the LCD Module Precautions for handling the LCD module CRT Satellite P20-25 Series Maintenance Manual Satellite P20-25 Series Maintenance Manual Satellite P20-25 Series Maintenance Manual Satellite P20-25 Series Maintenance Manual System Board FRDSY* Bottom View Appendix B Board Layout Figure B-2 System board FRDSY* layout Top System Board FRDSY* Top View Mark Number Name Table B-1 System board ICs and connectors top and bottom PCN1 Table B-2 System board ICs and connectors top and bottom Table C-1 Sodimm I/F pin assignments 144-pin 1/4 System Board JP24/JP26 Sodimm I/F 144-pin Table C-1 Sodimm I/F pin assignments 144-pin 2/4 Table C-1 Sodimm I/F pin assignments 144-pin 3/4 Table C-1 Sodimm I/F pin assignments 144-pin 4/4 Table C-2 LCD I/F pin assignments 40-pin JP1 LCD I/F 40-pin Table C-3 RGB I/F pin assignments 15-pin JP15 RGB I/F 15-pin Table C-4 HDD I/F pin assignments 44-pin JP34 HDD I/F 44-pin Table C-5 CD-ROM I/F pin assignments 50-pin JP28 Main Module I/F 60-pin JP29 Second Module I/F 60-pin Table C-6 Parallel I/F pin assignments 25-pin JP14 Parallel I/F 25-pin Table C-7 PC Card I/F pin assignments 154-pin 1/3 JP21 PC Card I/F 150-pin S2 IORD# Table C-7 PC Card I/F pin assignments 154-pin 2/3 Table C-7 PC Card I/F pin assignments 154-pin 3/3 Table C-8 Mini PCI I/F pin assignments 124-pin 1/2 JP27 Mini PCI I/F 124-pin Table C-8 Mini PCI I/F pin assignments 124-pin1/2 Microphone 6-pin AC Adaptor Connector 3-pin---Find Power Team10 JP22, JP23, JP25 Fan I/F 3-pin Table C-12 Headphone Connector pin assignments 6-pin Headphone Connector 6-pin Satellite P20-25 Series Maintenance Manual Table D-1 Scan codes set 1 and set 2 1/4 Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes set 1 and set 2 2/4 ALT R Table D-1 Scan codes set 1 and set 2 3/4 Table D-1 Scan codes set 1 and set 2 4/4 Table D-2 Scan codes with left Shift key Table D-4 Scan codes with Fn key Table D-3 Scan codes in Numlock mode Table D-6 No.124 key scan code Table D-5 Scan codes in overlay mode Table D-7 No.126 key scan code United Kingdom UK Keyboard United States US Keyboard Japanese JA Keyboard Spanish SP Keyboard Figure E-3 KO keyboard Korean KO Keyboard Satellite P20 Series Maintenance Manual Table F-1 Series Screw Torque List Appendix F Series Screw Torque List MDC to MB User KEY FPC Bluetooth to MB UP Hinge Cover Satellite P20-25 Series Maintenance Manual Table G-1 Mtbf Appendix G Reliability Satellite P20 Series Maintenance Manual