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

Models: P25

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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

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

Contents

Toshiba Corporation Trademarks CopyrightDisclaimer Preface Safety PrecautionsSatellite P20-25 Series Maintenance Manual Acronyms ConventionsSatellite P20-25 Series Maintenance Manual Table of Contents Tests and Diagnostics CPU HDD Replacement ProceduresAppendices Hardware Overview Hardware Overview Chapter Contents Hardware Overview Features Hardware Overview FeaturesHardware Overview Features Features Hardware Overview Hardware Overview Features System Unit Hardware Overview System UnitHardware Overview System Unit AUX Hardware Overview Removable Drives 2.5-inch Hard Disk Drive1 3.5-inch Floppy Disk Drive Removable DrivesRemovable Drives Hardware Overview Read speeds DVD-R/-RW DriveMatsushita SR-8177 256 Kbytes Max Toshiba SD-C2612 DVD-ROM DriveDVD Multi-Drive CD-RW Combo DriveHardware Overview Power Supply Power SupplyLB2 Power Supply Hardware OverviewHardware Overview Batteries Main BatteryBatteries Satellite P20-25 Series Maintenance Manual Status Time RTC batteryBatteries Hardware Overview Chapter Troubleshooting Procedures Troubleshooting Procedures Chapter Contents Tables FiguresTroubleshooting Introduction Troubleshooting Procedures Troubleshooting IntroductionTroubleshooting Procedures Troubleshooting Flowchart Troubleshooting FlowchartTroubleshooting flowchart 1/2 Troubleshooting Flowchart Troubleshooting ProceduresTroubleshooting flowchart 2/2 Troubleshooting Flowchart Troubleshooting Procedures Troubleshooting Procedures Troubleshooting Flowchart Power Supply Troubleshooting Troubleshooting Procedures Power Supply TroubleshootingProcedure 1 Power Status Check Troubleshooting Procedures Power Supply TroubleshootingBattery LED Battery State LED colors DefinitionAC-IN LED Procedure 2 Adaptor / battery replacementProcedure 3 Power supply connection check BatteryProcedure 5 Replacement check Procedure 4 Diagnostic checkTroubleshooting Procedures Display Troubleshooting Display TroubleshootingProcedure 2 Diagnostic check Display Troubleshooting Troubleshooting ProceduresProcedure 1 External display check Procedure 3 Connector and replacement check FDD Troubleshooting Troubleshooting Procedures FDD TroubleshootingProcedure 3 Connector check and replacement check Troubleshooting Procedures FDD TroubleshootingProcedure 1 FDD head cleaning check Keyboard Troubleshooting Troubleshooting Procedures Keyboard TroubleshootingProcedure 1 External keyboard check Troubleshooting Procedures Keyboard TroubleshootingExternal USB device troubleshooting process External USB Devices TroubleshootingProcedure 2 Replace system board Procedure 1 External device and connection checkTV-Out Failure Troubleshooting Troubleshooting Procedures TV-Out Failure TroubleshootingProcedure 2 TV set check Troubleshooting Procedures TV-Out Failure TroubleshootingProcedure 1 TV connection check Printer Port Troubleshooting Troubleshooting Procedures Printer Port TroubleshootingProcedure 1 Diagnostic check Troubleshooting Procedures Printer Port TroubleshootingProcedure 2 Printer port loopback check Procedure 3 Replace system boardTouch Pad Troubleshooting Troubleshooting Procedures TouchPad TroubleshootingProcedure 2 TouchPad replacement check Troubleshooting Procedures TouchPad TroubleshootingProcedure 1 TouchPad connection check Speaker Troubleshooting Troubleshooting Procedures Speaker TroubleshootingProcedure 1 Audio source test Troubleshooting Procedures Speaker TroubleshootingProcedure 2 Earphone test Procedure 3 Connection checkOptical Drive Troubleshooting Troubleshooting Procedures Optical Drive TroubleshootingProcedure 1 Audio CD check Troubleshooting Procedures Optical Drive TroubleshootingProcedure 2 Drive cleaning check ProcedureProcedure 5 Connection check and replacement check Troubleshooting Procedures Modem Troubleshooting Modem TroubleshootingProcedure 1 Telephone line connection check Modem Troubleshooting Troubleshooting ProceduresProcedure 2 Modem card connection check Procedure 3 Modem replacement checkTroubleshooting Procedures Pcmcia Troubleshooting Pcmcia TroubleshootingProcedure 2 Pcmcia socket replacement check Pcmcia Troubleshooting Troubleshooting ProceduresProcedure 1 Sycard test Troubleshooting Procedures Ieee 1394 Troubleshooting Ieee 1394 TroubleshootingProcedure 3 Connection and replacement check Ieee 1394 Troubleshooting Troubleshooting ProceduresProcedure 1 Ieee 1394 device check Troubleshooting Procedures Wireless LAN Troubleshooting Wireless LAN TroubleshootingProcedure 2 Connector and replacement check Wireless LAN Troubleshooting Troubleshooting ProceduresTroubleshooting Procedures Bluetooth Troubleshooting Bluetooth TroubleshootingBluetooth Troubleshooting Troubleshooting Procedures Troubleshooting Procedures Bluetooth Troubleshooting Chapter Tests and Diagnostics Tests and Diagnostics Contents Tests and Diagnostics Diagnostic Test Tests and Diagnostics Diagnostic TestTests and Diagnostics Executing the Diagnostic Test Executing the Diagnostic TestExecuting 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 TestDMI Check Test DMI Check Test Tests and DiagnosticsPIO Loopback Test Tests and Diagnostics PIO Loopback TestIeee 1394 Test Ieee 1394 Test Tests and DiagnosticsSpeaker Audio Test Tests and Diagnostics Speaker Audio TestFan ON/OFF Test Fan ON/OFF Test Tests and DiagnosticsTests and Diagnostics Main Battery Change Test Main Battery Charge TestFDD Test FDD Test Tests and DiagnosticsCD-ROM Test Tests and Diagnostics CD-ROM TestKeyboard Test Keyboard Test Tests and DiagnosticsTests and Diagnostics Keyboard Test Keyboard Test Tests and Diagnostics Mouse Pad Test Tests and Diagnostics Mouse Pad TestMouse Pad Test Tests and Diagnostics Tests and Diagnostics LCD Pixels Mode Test LCD Pixels Mode TestLid Switch Test Tests and Diagnostics Lid Switch TestHDD R/W Test Tests and Diagnostics HDD R/W TestHDD R/W Test Tests and Diagnostics LAN Test Tests and Diagnostics LAN TestLAN Test Tests and Diagnostics RTC Test Tests and Diagnostics RTC TestCD Control Button Test CD Control Button Test Tests and DiagnosticsTests and Diagnostics RTC Test Chapter Replacement Procedures Replacement Procedures General Replacement Procedures General General Replacement ProceduresReplacement Procedures General Safety Precautions Before You Begin Assembly Procedures Disassembly ProceduresTools and Equipment Battery Replacement Procedures BatteryRemoving the Battery Pack Removing the battery packInstalling the Battery Pack Replacement Procedures BatteryPC Card PC Card Replacement ProceduresRemoving a PC Card Pressing the eject buttonRemoving the PC Card Replacement Procedures PC CardInstalling the PC Card Removable modules Replacement Procedures Removable modulesRemoving the Main Module Removable modules Replacement ProceduresUnlock the main module bay lock Removing the main moduleEngage the main module bay latch lock Installing the Main ModuleOptical Drive Optical Drive Replacement ProceduresDisassembling the Optical Drive Removing the bracket screwsReplacement 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 caseSecure 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 containerRemoving the HDD case screws Removable HDD Replacement ProceduresReplacement Procedures Removable HDD Reassembling the Removable HDD Removable FDD Replacement Procedures Removable FDDDisassembling the Removable FDD Removing the FDD bracket screwsReassembling the Removable FDD Removable FDD Replacement ProceduresReplacement Procedures Wireless LAN Unit Wireless LAN UnitRemoving the Wireless LAN Unit Lift off the wireless LAN compartment cover11 Removing the wireless LAN unit Wireless LAN Unit Replacement ProceduresInstalling the Wireless LAN Unit Expansion Memory Expansion Memory Replacement ProceduresRemoving the Expansion Memory 12 Removing the expansion memory cover13 Removing the expansion memory Replacement Procedures Expansion MemoryInstalling the Expansion Memory Replacement Procedures Modem / Bluetooth Unit Modem / Bluetooth UnitRemoving the Modem / Bluetooth Unit 14 Removing the modem / Bluetooth unit cover15 Removing the modem / Bluetooth unit screws Modem / Bluetooth Unit Replacement ProceduresInstalling the Modem / Bluetooth Unit 12 CPU 12 CPU Replacement ProceduresRemoving the CPU 16 Removing the CPU compartment cover17 Removing the heat sink Replacement Procedures 12 CPU18 Removing the CPU Installing the CPU 13 HDD 13 HDD Replacement Procedures19 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 connectorInstalling the HDD Keyboard Keyboard Replacement ProceduresRemoving the Keyboard Open the display panel23 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 module25 Removing the screws from the computer underside Replacement Procedures TOP CoverInstalling the Top Cover Function Key Board Replacement Procedures Function Key BoardRemoving the Function Key Board Remove the keyboard, HDD, main module and top coverInstalling the Function Key Board Function Key Board Replacement ProceduresReplacement Procedures LED / Power Button Board LED / Power Button BoardRemoving the LED / Power Button Board 27 Removing the LED/power button boardInstalling the LED / Power Button Board LED / Power Button Board Replacement ProceduresTouchPad Replacement Procedures TouchPadRemoving the TouchPad 28 Removing the TouchPad button boardInstalling the TouchPad TouchPad Replacement ProceduresReplacement Procedures Display Assembly Display AssemblyRemoving the Display Assembly 29 Removing the wireless LAN compartment cover31 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 cover35 Removing the system board screws and cables Seat the system board and secure with three M2.5⋅6 screws Installing the System Board36 Removing the Direct Play cover assembly Replacement Procedures Direct Play Button BoardDirect Play Button Board Removing the Direct Play Button BoardInstalling the Direct Play Button Board Direct Play Button Board Replacement ProceduresCIR Board Replacement Procedures CIR BoardRemoving the CIR Board 37 Removing the CIR boardInstalling the CIR Board CIR Board Replacement ProceduresDirect play LED board Replacement Procedures Direct play LED boardRemoving the Direct Play LED Board 38 Removing the direct play LED boardSecure 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 screwsInstalling the Audio Board Audio Board Replacement ProceduresSpeakers Replacement Procedures SpeakersRemoving the Speakers 40 Removing the speaker screws41 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 screws43 Removing the outer chassis fan screws Replacement Procedures Fan SetInstalling the Fan Set Display Mask Replacement Procedures Display MaskRemoving the Display Mask 44 Removing the display mask screwsInstalling the Display Mask Display Mask Replacement ProceduresFL Inverter Board Replacement Procedures FL Inverter BoardRemoving the FL Inverter Board 45 Removing the FL inverter boardInstalling the FL Inverter Board FL Inverter Board Replacement ProceduresLCD Module Replacement Procedures LCD ModuleRemoving the LCD Module 46 Removing the LCD module47 Removing the LCD cable Pull out LCD cable from LCD connectorSecure LCD cable with one M2.5⋅4 screw Installing the LCD ModuleAppendices 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 moduleCRT 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 LayoutFigure B-2 System board FRDSY* layout Top System Board FRDSY* Top ViewMark Number Name Table B-1 System board ICs and connectors top and bottomPCN1 Table B-2 System board ICs and connectors top and bottomTable C-1 Sodimm I/F pin assignments 144-pin 1/4 System Board JP24/JP26 Sodimm I/F 144-pinTable 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-pinTable C-3 RGB I/F pin assignments 15-pin JP15 RGB I/F 15-pinTable C-4 HDD I/F pin assignments 44-pin JP34 HDD I/F 44-pinTable C-5 CD-ROM I/F pin assignments 50-pin JP28 Main Module I/F 60-pinJP29 Second Module I/F 60-pin Table C-6 Parallel I/F pin assignments 25-pin JP14 Parallel I/F 25-pinTable C-7 PC Card I/F pin assignments 154-pin 1/3 JP21 PC Card I/F 150-pinS2 IORD# Table C-7 PC Card I/F pin assignments 154-pin 2/3Table 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-pinTable 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-pinSatellite P20-25 Series Maintenance Manual Table D-1 Scan codes set 1 and set 2 1/4 Appendix D Keyboard Scan/Character CodesTable D-1 Scan codes set 1 and set 2 2/4 ALT R Table D-1 Scan codes set 1 and set 2 3/4Table 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 modeTable D-6 No.124 key scan code Table D-5 Scan codes in overlay modeTable D-7 No.126 key scan code United Kingdom UK Keyboard United States US KeyboardJapanese JA Keyboard Spanish SP KeyboardFigure E-3 KO keyboard Korean KO KeyboardSatellite P20 Series Maintenance Manual Table F-1 Series Screw Torque List Appendix F Series Screw Torque ListMDC to MB User KEY FPC Bluetooth to MB UP Hinge Cover Satellite P20-25 Series Maintenance Manual Table G-1 Mtbf Appendix G ReliabilitySatellite P20 Series Maintenance Manual