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Toshiba S2 manual System Unit, Hardware Overview

Models: S2

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1 Hardware Overview

1.2 System Unit

1.2System Unit

The system unit is composed of the following major components:

?Processor

?Intel Celeron M CPU up to 1.5GHz 0.09u, 1M L2, FSB 400MHz

?Intel Pentium M CPU up to 2.13GHz 0.09u, 2M L2, FSB 533MHz

?Micro FC-PGA package CPU

?System Logic

?Intel 915PM (Alviso-PM)/ Intel 915GM (Alviso-GM) (400/533 MHz FSB supported)

?ICH6-M

?ENE KB910 for Keyboard Controller, Battery management Unit, and RTC.

?TI PCI7411 for Card Bus PCMCIA, 1394, 5 in 1 controller.

?Integrated VGA solution for 915GM/ External VGA card for 915PM

?ALC250DV for AC97 Codec

?Marvell 88SA8040 for SATA to PATA HDD support

?Marvell 88E8053 for GIGA LAN/ Marvell 88E8036 for 10/100M LAN

?Memory

?On board with two 200-pin +2.5V SO-DIMM connector, supporting, DDR memories card. Maximum up gradable to 2GB by two 1GB SO-DIMM module.

?1MB/2MB L2 Cache on CPU

?Support 64MB/128MB VGA memory for NV43M/M24P/M22P.

?Adjustable 128MB UMA VGA memory share from North Bridge.

?Fixed Disk Interface

?Marvell 88SA8040 supports PATA HDD.

?Video Subsystem

?UMA VGA Memory up to 128MB

?Display Core Frequency of 200/250/266/333MHZ

?3D Graphics Engine

?Analog Display support

?Digital Video out port (DVOB and DVOC)support

?DVOB With 165-MHZ clot clock support for 12 bit interface.

?Dedicated 2FP (local flat panel) interface

?Single or dual channel LVDS panel support up to SXGA+ panel, resolution with frequency range from 25MHZ to 112MHZ per channel.

?SMsC LPC 47N217 Super I/O with LPC Interface

?PC99a, PC2001

?ACPI 2.0 Compliant

?Serial Ports

?One Full Function Serial Port

1-10	Tecra A3/S2 Series Maintenance Manual

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Toshiba S2 manual System Unit, Hardware Overview

Contents

TECRA A3/S2 Maintenance Manual TOSHIBA CORPORATIONToshiba Personal Computer Copyright injury if the safety instruction is not observed The manual is divided into the following parts Chapter DISKCOPY A B Chapter 2 Troubleshooting Procedures Table of ContentsChapter 1 Hardware Overview Chapter 3 Tests and Diagnostics General Chapter 4 Replacement ProceduresBoard Layout AppendicesKey Layout Chapter Hardware Overview Tecra A3/S2 Series Maintenance Manual 1 Hardware Overview1-ii 1 Hardware Overview ContentsError! Bookmark not defined Chapter1 Hardware Overview Tecra A3/S2 Series Maintenance Manual1-iv 1.2 System Unit 1.1 Features1 Hardware Overview 1 Hardware Overview ? BIOS ? 1MB Flash ROM for system BIOS a Suspend to RAM/Disk1.2 System Unit 1 Hardware Overview 1.2 System Unit? Keyboard 1.2 System Unit 1 Hardware Overview? PCMCIA Card Organization 1 Hardware Overview 1.2 System Unit? TV-out port 1 Hardware Overview 1.2 System Unit1.2 System Unit 1.2 System Unit Realtek ALC250VD for AC97 codec1 Hardware Overview 1 Hardware Overview TI PCI7411 Card Bus Host Adapter1.2 System Unit 1.2 System Unit Marvell 88E8053 for Giga LANMarvell 88E8036 for 10/100M LAN Marvell 88SA8040 for Serial ATA Bridge1 Hardware Overview 1.3 2.5-inch Hard Disk Drive1.3 2.5-inch Hard Disk Drive Tecra A3/S2 Series Maintenance Manual1.4.2 CD-ROM Drive 1.4 Optical Devices module1.4 Removable Drives 1.4.1 DVD-ROM Drive1 Hardware Overview 1.4.3 CD-RW/DVD-ROM Drive1.4 Removable Drives 1 Hardware Overview 1.5 Power Supply1.4.4 DVD±R/±RW Drive 1.4.5 DVD Super Multi Drive1 Hardware Overview DVD-RAMStandard rotational speed 1.5 Power Supply1.5 Power Supply 1.5 Power Supply1 Hardware Overview 6. Power ON/OFF sequence 1.5 Power Supply1 Hardware Overview 1 Hardware Overview 1.6.1 Main Battery1.6 Batteries 1.6 Batteries1 Hardware Overview 1.6.2 RTC battery1.6 Batteries Chapter Troubleshooting Procedures Tecra A3/S2 Series Maintenance Manual 2 Troubleshooting Procedures2-ii Chapter Contents2 Troubleshooting Procedures Troubleshooting IntroductionTables Figures2 Troubleshooting Procedures 2.1 Troubleshooting Introduction 2.1 Troubleshooting Introduction2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2.2 Troubleshooting Flowchart2 Troubleshooting Procedures Tecra A3/S2 Series Maintenance Manual Figure 2-1 Troubleshooting flowchart 1/22.3 Power Supply Troubleshooting 2 Troubleshooting Procedures2 Troubleshooting Procedures Figure 2-1 Troubleshooting flowchart 2/22.3 Power Supply Troubleshooting 2 Troubleshooting Procedures 2.3 Power Supply TroubleshootingIf the diagnostics program cannot detect an error, the problem may be intermittent. The test program should be executed several times to isolate the problem. When a problem has been located, perform the appropriate troubleshooting procedures as follows 2.3 Power Supply Troubleshooting 2 Troubleshooting ProceduresOther problems that are not covered by the diagnostics program may be discovered by a user 2 Troubleshooting Procedures 2.3 Power Supply TroubleshootingFigure 2-2 Power Supply Troubleshooting Process 2.3 Power Supply TroubleshootingLED colors Procedure 1 Power Status CheckTable 2-1 Battery LED Battery StateProcedure 2 Adaptor / battery replacement Power supply statusAC power exists LED is solid green No AC power exists2 Troubleshooting Procedures Procedure 3 Power supply connection checkAC power cord Battery2 Troubleshooting Procedures Procedure 4 Diagnostic checkProcedure 5 Replacement check 2.3 Power Supply Troubleshooting2 Troubleshooting Procedures 2.4 Display Troubleshooting2.4 Display Troubleshooting Figure 2-3 Display troubleshooting process2 Troubleshooting Procedures Procedure 1 External display checkProcedure 2 Diagnostic check 2.4 Display Troubleshooting2 Troubleshooting Procedures Procedure 3 Connector and replacement check2.4 Display Troubleshooting 2 Troubleshooting Procedures 2.5 Keyboard Troubleshooting2.5 Keyboard Troubleshooting Figure 2-4 Keyboard troubleshooting processProcedure 2 Diagnostic check Procedure 1 External keyboard check2 Troubleshooting Procedures 2.5 Keyboard Troubleshooting2 Troubleshooting Procedures 2.6 External USB Devices Troubleshooting2.6 External USB Devices Troubleshooting Figure 2-5 External USB device troubleshooting process2.6 External USB Devices Troubleshooting Procedure 1 External device and connection checkProcedure 2 Replace system board 2 Troubleshooting Procedures2 Troubleshooting Procedures 2.7 TV-Out Failure Troubleshooting2.7 TV-Out Failure Troubleshooting Figure 2-6 TV-out troubleshooting process2.7 TV-Out Failure Troubleshooting Procedure 1 TV connection checkProcedure 2 TV set check 2 Troubleshooting Procedures2 Troubleshooting Procedures 2.8 Printer Port Troubleshooting2.8 Printer Port Troubleshooting Figure 2-7 Printer port troubleshooting process2 Troubleshooting Procedures Procedure 1 Diagnostic checkProcedure 2 Printer port loopback check Procedure 3 Replace system board2 Troubleshooting Procedures 2.9 TouchPad Troubleshooting2.9 Touch Pad Troubleshooting Figure 2-8 TouchPad troubleshooting process2 Troubleshooting Procedures 2.9 TouchPad TroubleshootingProcedure 1 TouchPad connection check Procedure 2 TouchPad replacement check2 Troubleshooting Procedures 2.10 Speaker TroubleshootingFigure 2-9 Speaker troubleshooting process 2.9 Touch Pad TroubleshootingProcedure 4 Replacement check Procedure 1 Audio source testProcedure 2 Earphone test Procedure 3 Connection check2 Troubleshooting Procedures 2.11 Modem TroubleshootingFigure 2-11 Modem troubleshooting process 2.9 Touch Pad Troubleshooting2 Troubleshooting Procedures Procedure 1 Telephone line connection checkProcedure 2 Modem card connection check Procedure 3 Modem replacement check2 Troubleshooting Procedures 2.12 PCMCIA TroubleshootingFigure 2-12 PCMCIA troubleshooting process 2.9 Touch Pad Troubleshooting2.9 TouchPad Troubleshooting Procedure 1 SYCARD testProcedure 2 PCMCIA socket replacement check 2 Troubleshooting Procedures2 Troubleshooting Procedures 2.13 IEEE 1394 TroubleshootingFigure 2-13 IEEE 1394 troubleshooting process 2.9 Touch Pad Troubleshooting2.9 TouchPad Troubleshooting Procedure 1 IEEE 1394 device checkProcedure 3 Connection and replacement check 2 Troubleshooting Procedures2-33 2.9 Touch Pad Troubleshooting2 Troubleshooting Procedures Tecra A3/S2 Series Maintenance Manual2 Troubleshooting Procedures 2.14 Wireless LAN Troubleshooting2.10 Speaker Troubleshooting Figure 2-14 Wireless LAN troubleshooting process2.10 Speaker Troubleshooting ProcedureDiagnostic test Procedure 2 Connector and replacement check2-36 2 Troubleshooting Procedures2.10 Speaker Troubleshooting Tecra A3/S2 Series Maintenance ManualChapter Tests and Diagnostics Tecra A3/S2 Series Maintenance Manual 3. Tests and Diagnostics3-ii 3-13 Test and Diagnostic Operation3-11 3-12Tecra A3/S2 Series Maintenance Manual 3. Tests and Diagnostics3-iv 2. Exit this program when you are at Main Menu 3.1 The Diagnostic Test3.1 The Diagnostic Test NOTES To start the diagnostics, follow these stepsTecra A3/S2 Series Maintenance Manual 3. Tests and Diagnostics3.2 Executing the Diagnostic Test 3.2 Executing the Diagnostic Test3. Tests and Diagnostics Tecra A3/S2 Series Maintenance Manual Executing the Diagnostic TestThe below display will show up at the beginning of T&D program 3. Tests and Diagnostics3. Tests and Diagnostics 3.2 Executing the Diagnostic TestIf an error is detected and a test fails, the following message displays Tecra A3/S2 Series Maintenance Manual NOTE Press Pause to pause a test and Enter to resume3. Tests and Diagnostics 3.2 Executing the Diagnostic Test3 Tests and Diagnostics 3.3 Config Check Test3.3 Parallel Port Test 3.4 DMI Check Test 3.4 DMI Check Test3. Tests and Diagnostics 3.5 PIO Loopback Test 3.5 PIO Loopback Test3. Tests and Diagnostics 3-10 3.6 IEEE 1394 Test3. Tests and Diagnostics Tecra A3/S2 Series Maintenance Manual3.7 Speaker Audio Test 3.6 Speaker Audio Test3. Tests and Diagnostics 3.8 Fan ON/OFF Test 3.7 Fan ON/OFF Test3. Tests and Diagnostics 3.9 Main Battery Change Test 3.8 Main Battery Charge Test3. Tests and Diagnostics 3 Tests and Diagnostics 3.9 FDD Test3.10 FDD Test NOTE Press “Esc” key can skip the current subtest3-15 3. Tests and DiagnosticsTecra A3/S2 Series Maintenance Manual 3.10 FDD TestNOTE Press “Esc” key can skip the current subtest 3.10 CD-ROM Test3.11 CD-ROM Test 3. Tests and Diagnostics3.12 Keyboard Test 3.11 Keyboard Test3. Tests and Diagnostics 3-18 3. Tests and DiagnosticsTecra A3/S2 Series Maintenance Manual 3.12 Keyboard Test3-19 3. Tests and DiagnosticsTecra A3/S2 Series Maintenance Manual 3.12 Keyboard Test3. Tests and Diagnostics 3.12 Mouse Pad Test3.13 Mouse Pad Test NOTE The Touch Pad test cannot be used to test an external USB mouse3.13 Mouse Pad Test 3. Tests and DiagnosticsAfter checking T/Pad buttons and cursor’s function, use “Tab” key or use T/Pad cursor to click the “OK” column will end this test 3.14 LCD Pixels Mode Test 3.13 LCD Pixels Mode Test3. Tests and Diagnostics 3.15 Lid Switch Test 3.14 Lid Switch Test3. Tests and Diagnostics 3.16 HDD R/W Test 3.15 HDD R/W Test3. Tests and Diagnostics Tecra A3/S2 Series Maintenance Manual NOTE Press “Ctrl + Break” keys can terminate the current subtestNOTE The AC adaptor should be connected to successfully run this test 3. Tests and Diagnostics3. Tests and Diagnostics 3.16 LAN Test3.17 LAN Test NOTE LAN loopback needs to plug in before test beginsTecra A3/S2 Series Maintenance Manual The screen should display as below, indicatingpass will go on to next test 3. Tests and Diagnostics3-28 3. Tests and DiagnosticsTecra A3/S2 Series Maintenance Manual 3.17 LAN Test3-29 3. Tests and DiagnosticsTecra A3/S2 Series Maintenance Manual 3.17 LAN Test3.19 CD Control Button Test 3.17 RTC Test3. Tests and Diagnostics Chapter Replacement Procedures Tecra A3/S2 Series Maintenance Manual 4 Replacement Procedures4-ii Chapter Contents4 Replacement Procedures BatteryFigures 4 Replacement ProceduresRemoving the HDD Module Removing the FL inverter board 4 Replacement ProceduresExpansion Memory 4.1 General4 Replacement Procedures Display AssemblyThe example below shows FRUs to be removed before the Direct Play button board can be removed and repaired or replaced. The Direct Play button board is overlapped by the top cover which must be removed before the Direct Play button board can be reached. The removable HDD, keyboard, wireless LAN, ODD, modem, and display assembly in turn overlap the top cover. Always starts the disassembly process by removing the battery pack 4 Replacement Procedures3. Never work with wet or damp hands Safety PrecautionsDANGER WARNING To avoid the risk of electric shock or other injury4 Replacement Procedures Before You BeginAssembly Procedures Disassembly Procedures4 Replacement Procedures 4 Replacement Procedures Tools and Equipment4 Replacement Procedures 4.2 BatteryRemoving the Battery Pack Figure 4-1 Removing the battery pack4 Replacement Procedures Installing the Battery Pack4.3 PC Card Removing a PC CardTecra A3/S2 Series Maintenance Manual 4 Replacement Procedures Figure 4-2 Removing a PC Card4 Replacement Procedures Installing a PC CardFigure 4-3 Installing a PC Card 4.4 HDDTecra A3/S2 Series Maintenance Manual Removing the HDD ModuleFigure 4-5 Removing the HDD door 4 Replacement Procedures4 Replacement Procedures Installing the HDD ModuleFigure 4-6 Removing the HDD module Disassembling the HDD Module4.5 Optical Drive Module 4 Replacement Procedures Figure 4-7 Removing the HDD bracketRemoving the Optical Drive Module Figure 4-8 Removing the optical drive module Installing the Optical Drive Module4 Replacement Procedures 4 Replacement Procedures 4.6 Optical DriveDisassembling the Optical Drive Figure 4-9 Removing the optical drive bracketReassembling the Optical Drive 4.6 Optical Drive4 Replacement Procedures 4 Replacement Procedures 4.7 Wireless LANRemoving the Wireless LAN Figure 4-10 Removing the wireless LAN coverInstalling the Wireless LAN Figure 4-11 Removing the wireless LAN unit4 Replacement Procedures 4 Replacement Procedures 4.8 Expansion Memory ModuleRemoving an Expansion Memory Figure 4-12 Removing the memory module coverTecra A3/S2 Series Maintenance Manual Figure 4-13 Removing a memory module4 Replacement Procedures 7. Replace the battery packFigure 4-14 Removing an expansion memory cover Installing an Expansion Memory Module4 Replacement Procedures 4-22 Figure 4-15 Installing an expansion memory4 Replacement Procedures Tecra A3/S2 Series Maintenance Manual4 Replacement Procedures 4.9 KeyboardRemoving the Keyboard Figure 4-16 Removing the strip cover4 Replacement Procedures Figure 4-17 Removing the keyboard5. Lift the keyboard out of its bay, revealing the keyboard cable Installing the Keyboard 4 Replacement Procedures Figure 4-18 Disconnecting the keyboard cableInstalling the Bluetooth 4.10 BluetoothRemoving the Bluetooth Figure 4-19 Removing the Bluetooth4 Replacement Procedures 4.11 ModemRemoving the Modem Figure 4-20 Removing the modem moduleFigure 4-21 Removing the display assembly screws 4.12 Display AssemblyInstalling the Modem Removing the Display AssemblyInstalling the Display Assembly Figure 4-22 Removing the wireless and LCD cables4 Replacement Procedures 4 Replacement Procedures 4.13 Top CoverRemoving the Top Cover Removing screws of the bottomTecra A3/S2 Series Maintenance Manual Figure 4-24 Removing the top coverFigure 4-25 Removing FFC cables 4 Replacement ProceduresFigure 4-26 Removing Speaker cables Installing the Top Cover4 Replacement Procedures Figure 4-27 Removing the Touch Pad board Installing the Touch Pad4.14 Touch Pad Removing the Touch PadFigure 4-28 Removing the speakers Installing the Speakers4.15 Speakers Removing the Speakers4 Replacement Procedures 4.16 System BoardRemoving the LAN Board Figure 4-29 Removing LAN board4 Replacement Procedures Installing the LAN BoardRemoving the USB Board Figure 4-30 Removing USB board4 Replacement Procedures Installing the USB BoardRemoving the System Board Figure 4-31 Removing the system boardFigure 4-32 Removing the Direct Play Button board Installing the System Board4.17 Direct Play Button Board Removing the Direct Play Button Board4 Replacement Procedures Installing the Direct Play Button Board4.18 Fan, Heat Sink, & CPU Removing the Fan, Heat Sink & CPU4 Replacement Procedures Figure 4-33 Removing the fan moduleFigure 4-34 Removing the heat sink Figure 4-35 Removing the CPU4 Replacement Procedures Installing the CPU4 Replacement Procedures 4.19 Display MaskRemoving the Display Mask Figure 4-36 Removing the display mask1. Seat the display mask and secure the snaps on each side Installing the Display Mask4 Replacement Procedures Tecra A3/S2 Series Maintenance Manual4 Replacement Procedures 4.20 LCD ModuleRemoving the LCD Module Figure 4-37 Removing the LCD module-1Figure 4-38 Removing the LCD module-2 Installing the LCD Module4 Replacement Procedures Figure 4-39 Removing the FL inverter board Installing the FL Inverter Board4.21 FL Inverter Board Removing the FL Inverter BoardAppendix A Handling the LCD Module Precautions for handling the LCD module3. If the panel’s surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty, try breathing on the surface to create a light condensate and wipe it again 5. Glass is used in the panel, so be careful not to drop it or let it strike a hard object, which could cause breakage or cracks 7. Do not expose the module to direct sunlight or strong ultraviolet rays for long periods TECRA A3/S2 Series Maintenance Manual TECRA A3/S2 Series Maintenance Manual TECRA A3/S2 Series Maintenance Manual Appendix B Board LayoutB.1 System Board FRDSY* Top View Figure B-1 System board FRDSY* layout TopFigure B-2 System board FRDSY* layout Button B.2 System Board FRDSY* Button ViewTECRA A3/S2 Series Maintenance Manual Number Table B-1 System board ICs top and bottomTECRA A3/S2 Series Maintenance Manual MarkName Table B-2 System board connectors top and bottomTECRA A3/S2 Series Maintenance Manual NumberSignal name Appendix C Pin AssignmentsSystem Board C.1 JP24,JP25 Table C-1 SODIMM I/F pin assignments 200-PIN 1/4TECRA A3/S2 Series Maintenance Manual Table C-1 SODIMM I/F pin assignments 200-PIN 2/4Signal name Signal NameTECRA A3/S2 Series Maintenance Manual Table C-1 SODIMM I/F pin assignments 200-PIN 3/4Signal name Signal NameTECRA A3/S2 Series Maintenance Manual Table C-1 SODIMM I/F pin assignments 200-PIN 4/4Signal name Signal NameSignal Name C.2 JP1Table C-2 RGB I/F pin assignments 15-pin Signal nameSignal Name C.3 JP18Table C-3 HDD I/F pin assignments 44-pin Signal nameSignal Name C.4 JP31Table C-4 ODD I/F pin assignments 50-pin Signal nameSignal Name C.5 JP19Table C-5 PC Card I/F pin assignments 84-pin 1/2 Signal nameS1D0 TECRA A3/S2 Series Maintenance ManualS1D8 TECRA A3/S2 Series Maintenance Manual Table C-5 PC Card I/F pin assignments 84-pin 2/2Signal name Signal NameSignal Name C.6 JP28Table C-6 Mini PCI I/F pin assignments 124-pin 1/2 Signal nameC-12 TECRA A3/S2 Series Maintenance ManualTECRA A3/S2 Series Maintenance Manual Table C-6 Mini PCI I/F pin assignments 124-pin2/2Signal name Signal NameC-14 TECRA A3/S2 Series Maintenance ManualPin No C.7 JP6Signal name TECRA A3/S2 Series Maintenance ManualTECRA A3/S2 Series Maintenance Manual C.8 JP29Signal name Signal NameTable C-9-1 JP12 Fan I/F pin assignments 3-pin Table C-10 AC Adaptor Connector pin assignments 3-pinC.9 JP12 C.10 PJP1Table C-11 Microphone I/F pin assignments 6-pin Table C-12 Headphone Connector pin assignments 6-pinC.11 JP21 C.12 JP22Keytop Appendix D Keyboard Scan/Character CodesTable D-1 Scan codes set 1 and set 2 1/4 TECRA A3/S2 Series Maintenance ManualCode set Table D-1 Scan codes set 1 and set 2 2/4TECRA A3/S2 Series Maintenance Manual KeytopCode set Table D-1 Scan codes set 1 and set 2 3/4TECRA A3/S2 Series Maintenance Manual Keytop1. * Scan codes differ by mode Table D-1 Scan codes set 1 and set 2 4/4Scan codes with left Shift key Table D-2Code set Table D-3 Scan codes in Numlock modeTable D-4 Scan codes with Fn key TECRA A3/S2 Series Maintenance ManualKeytop Table D-5 Scan codes in overlay modeTable D-6 No.124 key scan code TECRA A3/S2 Series Maintenance ManualShift Table D-7 No.126 key scan codeTECRA A3/S2 Series Maintenance Manual Key topTECRA A3/S2 Series Maintenance Manual Appendix E Key LayoutE.1 United States US Keyboard Figure E-1 US keyboardFigure E-2 UK keyboard E.2 United Kingdom UK KeyboardTECRA A3/S2 Series Maintenance Manual Figure E-4 JA keyboard E.3 Spanish SP KeyboardE.4 Japanese JA Keyboard Figure E-3 SP keyboardFigure E-5 KO keyboard E.5 Korean KO KeyboardTECRA A3/S2 Series Maintenance Manual Figure E-6 FR keyboard E.6 French FR KeyboardTECRA A3/S2 Series Maintenance Manual Figure E8 Portuguese keyboard E.7 French-Canadian KeyboardE.8 Portuguese Keyboard Figure E-7 FR-C keyboardFigure E-10 GR keyboard E.9 US-INTERNATIONAL KeyboardE.10 GreeceGR Keyboard Figure E-9 US-INTE KeyboardFigure E-12 Swedish keyboard E.11 Chinese-T KeyboardE.12 Swedish Keyboard Figure E-11 CH-T keyboardFigure E-14 Czech keyboard E.13 ITALIAN KeyboardE.14 CZECH Keyboard Figure E-13 IT keyboardE-10 TECRA A3/S2 Series Maintenance ManualTECRA A3/S2 Series Maintenance Manual Appendix F Series Screw Torque ListTable F-1 Series Screw Torque ListPage LOCATION TECRA A3/S2 Series Maintenance ManualSCREW P/N SCREW SPECTECRA A3/S2 Series Maintenance Manual Component Appendix G ReliabilityTable G-1 MTBF TECRA A3/S2 Series Maintenance ManualTECRA A3/S2 Series Maintenance Manual