Toshiba TECRA M4

2 Troubleshooting

2-ii [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)

Contents

Main Toshiba Personal Computer TECRA M4 Maintenance Manual TOSHIBA CORPORATION Page Preface Page Page Table of Contents Page Page Page Page Page Page Chapter 1 Contents Page Page 1.1 Features Page Page Page Page Page Page Page Page Page 1.2 2.5-inch Hard Disk Drive 1 Hardware Overview 1.2 2.5-inch Hard Disk Drive 1-12 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 1-1 2.5-inch HDD Specifications(2/2) 1.3 Optical Drive 1 Hardware Overview 1.3 Optical Drive 1-14 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 1-3 DVD-ROM drive specifications (1/2) 1.3 Optical Drive 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-15 Table 1-3 DVD-ROM drive specifications (2/2) Page 1.3 Optical Drive 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-17 Table 1-5 DVD-ROM & CD-R/RW drive specifications (1/2) 1 Hardware Overview 1.3 Optical Drive 1-18 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 1-5 DVD-ROM & CD-R/RW drive specifications (2/2) Page 1 Hardware Overview 1.3 Optical Drive 1-20 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 1-7 DVD Super Multi drive specifications (1/2) 1.3 Optical Drive 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-21 Table 1-7 DVD Super Multi drive specifications (2/2) Page 1.3 Optical Drive 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-23 Table 1-9 DVD Super Multi drive (Double-layer) specifications (1/3) 1 Hardware Overview 1.3 Optical Drive 1-24 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 1-9 DVD Super Multi drive (Double-layer) specifications (2/3) 1.3 Optical Drive 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-25 Table 1-9 DVD Super Multi drive (Double-layer) specifications (3/3) 1.4 Keyboard 1.5 TFT Color Display Page 1.6 Power Supply 1 Hardware Overview 1.6 Power Supply 1-30 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) 1.6 Power Supply 1 Hardware Overview TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 1-31 Table 1-12 Power supply output specifications (2/2) 1.7 Batteries Page Page 1.8 AC Adapter Page Page Page Chapter 2 Contents Page Page Page 2.1 Troubleshooting Page Page Page Page 2.3 Power Supply Troubleshooting Page Page Page Page 2.3 Power Supply Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-11 S3V output (P60) 1R5-C1V output (P61) R5-C1V output (P62) Page 2.3 Power Supply Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-13 E3V output (P64) PTV output (P65 : MUX_CH1) 1R9-B1V output (P66 : MUX_CH1) Page Page Page 2.4 System board Troubleshooting Page Page Page Page 2 Troubleshooting 2.4 System board Troubleshooting 2-22 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 2-3 Debug port (Boot mode) error status (1/10) 2.4 System board Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-23 Table 2-3 Debug port (Boot mode) error status (2/10) 2 Troubleshooting 2.4 System board Troubleshooting 2-24 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 2-3 Debug port (Boot mode) error status (3/10) 2.4 System board Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-25 Table 2-3 Debug port (Boot mode) error status (4/10) 2 Troubleshooting 2.4 System board Troubleshooting 2-26 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 2-3 Debug port (Boot mode) error status (5/10) 2.4 System board Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-27 Table 2-3 Debug port (Boot mode) error status (6/10) 2 Troubleshooting 2.4 System board Troubleshooting 2-28 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 2-3 Debug port (Boot mode) error status (7/10) 2.4 System board Troubleshooting 2 Troubleshooting TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 2-29 Table 2-3 Debug port (Boot mode) error status (8/10) 2 Troubleshooting 2.4 System board Troubleshooting 2-30 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Page Page 2.5 USB 3.5 FDD Troubleshooting Page Page 2.6 2.5 HDD Troubleshooting Page Page Page Page 2.7 Keyboard Troubleshooting 2.8 Display Troubleshooting Page 2.9 Touch pad Troubleshooting 2.10 Selectable bay (optical drive) Troubleshooting 2.11 Modem Troubleshooting 2.12 Bluetooth Troubleshooting Page Page 2.13 LAN Troubleshooting 2.14 Sound Troubleshooting 2.15 SD Card Slot Troubleshooting 2.16 Tablet Pen Troubleshooting Page 2.17 Wireless LAN Troubleshooting Page Page Page Chapter 3 Contents Page Page Page 3.1 The Diagnostic Test Page Page 3.2 Executing the Diagnostic Test Page Page Page 3.3 Setting of the hardware configuration Page Page 3.4 Heatrun Test 3 Tests and Diagnostics 3.5 Subtest Names 3-12 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) 3.5 Subtest Names 3.5 Subtest Names 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-13 Table 3-1 Subtest names (2/2) 3.6 System Test Page 3.7 Memory Test 3.8 Keyboard Test 3.9 Display Test Page Page 3.10 Floppy Disk Test Page 3.11 Printer Test Page 3.12 Async Test 3.13 Hard Disk Test Page Page 3.14 Real Timer Test Page 3.15 NDP Test 3.16 Expansion Test Page 3.17 CD-ROM/DVD-ROM Test 3.18 Error Code and Error Status Names 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-35 3.18 Error Code and Error Status Names 3 Tests and Diagnostics 3.18 Error Code and Error Status Names 3-36 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 3-2 Error codes and error status names (2/3) 3.18 Error Code and Error Status Names 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-37 Table 3-2 Error codes and error status names (3/3) 3.19 Hard Disk Test Detail Status 3.19 Hard Disk Test Detail Status 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-39 Table 3-4 Error register contents 3.20 Only One Test Page Page Page Page Page Page Page 3.21 Head Cleaning 3.22 Log Utilities Page 3.23 Running Test 3.24 Floppy Disk Drive Utilities Page Page Page Page 3.25 System Configuration 3 Tests and Diagnostics 3.25 System Configuration 3-58 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Press Enter to return to the DIAGNOSTIC MENU. System Configuration Display : Ver X.XX [Machine Name ???] 3.26 Wireless LAN Test Program (Intel-made b/g) Page Page Page 3.27 Wireless LAN Test Program (Intel-made a/b/g) Page Page Page Page 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program Page Page Page Page Page 3 Tests and Diagnostics 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3-74 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) If the target machine has any problem, it displays Error CODE. The following message is displayed. Table 3-5 Error message 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-75 Page 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-77 3 Tests and Diagnostics 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3-78 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 3-79 3 Tests and Diagnostics 3.28 LAN/Modem/Bluetooth/IEEE1394 Test Program 3-80 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table 3-7 Error code for Bluetooth test (BD_ADDR of the DUT) (2/2) Page 3.29 Sound Test program Page Page Page Page Page 3.30 SETUP Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Chapter 4 Contents Page Page Page 4.1 Overview Page Page Page Page Page Page Page 4.2 Battery pack Page 4.3 PC card/SD card Page 4.4 Memory module Page 4.5 HDD Page 4.6 Selectable bay module Page Page 4.7 Keyboard Page 4.8 Bottom cover assembly Page 4.9 Battery latch assembly / Selectable bay lock Page 4.10 QI button assembly / PC card slot brace Page 4.11 Bluetooth module Page 4.12 MDC / Modem cable Page Page 4.13 Wireless LAN card Page 4.14 Fan/CPU Page Page Page Page 4.15 DC-IN jack 4.16 Penholder / RTC battery Page 4.17 LCD harness holder TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] 4-43 QI board cable Insulator CN9521 CN9530 M2.5x6.0B FLAT BIND Page 4.18 Mic (L) cable guide Page 4.19 QI board / CN board Page Page 4.20 System board Page 4.21 PC card slot cover 4.22 Speaker Page 4.23 Microphone / Front panel Page Page 4.24 Lens holder 4.25 Touch pad 4.26 LCD unit & FL inverter Page Page Page 4.27 Application switch board 4.28 LCD latch assembly 4.29 Digitizer Page Page Page Page Page 4.30 LCD harnesses & Wireless LAN/Bluetooth antennas Page Page Page Page 4.31 Hinge Switch Board 4.32 Fluorescent lamp Page Page Page Page Page Page Page Page Page Page Page Page Page Appendix Contents Page Page Page Page Page Appendix A Handling the LCD Module Precautions for handling the LCD module Page Page Page Page Page Appendix B Board Layout B.1 System Board Front View Page B.2 System board Back View Appendices Appendix B Board Layout B-4 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table B-2 System board (back) B.3 CN Board Front and Back View B.4 QI Board Front and Back View B.5 SW Board Front and Back View Page Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-1 Appendix C Pin Assignment System Board C.1 CN1440 Memory 1 connector (200-pin) Table C-1 Memory 1 connector (200-pin) (1/3) Appendices Appendix. C Pin Assignment C-2 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table C-1 Memory 1 connector (200-pin)(2/3) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-3 Table C-1 Memory 1 connector (200-pin) (3/3) Appendices Appendix. C Pin Assignment C-4 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.2 CN1460 Memory 2 connector (200-pin) Table C-2 Memory 2 connector (200-pin)(1/3) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-5 Table C-2 Memory 2 connector (200-pin)(2/3) Appendices Appendix. C Pin Assignment C-6 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table C-2 Memory 2 connector (200-pin )(3/3) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-7 C.3 CN1801 Select bay I/F connector (72-pin) Table C-3 Select bay I/F connector (72-pin) Appendices Appendix. C Pin Assignment C-8 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.4 CN1900 HDD I/F connector (11-pin) Table C-4 HDD I/F connector (11-pin) C.5 CN2110 PC card I/F connector (70-pin) Table C-5 PC card I/F connector (70-pin)) (1/2) Appendix. C Pin Assignment Appendices C.6 IS2130 SD card I/F connector (12-pin) Table C-6 SD card I/F connector (12-pin)) Appendices Appendix. C Pin Assignment C-10 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.7 CN2200 Mini PCI I/F connector (124-pin) Table C-7 Mini PCI I/F connector (124-pin) (1/2) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-11 Appendices Appendix. C Pin Assignment C-12 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.8 CN2300 Docking I/F connector (240-pin) Table C-8 Docking I/F connector (240-pin) (1/4) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-13 Table C-8 Docking I/F connector (240-pin) (2/4) Appendices Appendix. C Pin Assignment C-14 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) Table C-8 Docking I/F connector (240-pin) (3/4) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-15 C.9 CN3000 MDC I/F connector (30-pin) Table C-9 MDC I/F connector (30-pin) Appendices Appendix. C Pin Assignment C-16 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.10 CN3230 Keyboard connector (34-pin) Table C-10 Keyboard connector (34-pin) C.11 CN3240 PAD connector (8-pin) Table C-11 PAD connector (8-pin) C.12 CN3280 Panel sensor connector (3-pin) C.13 CN3400 Debugging connector (4-pin) C.14 J4100 Network I/F connector (14-pin) Page C.19 CN5501 LCD connector (20-pin) C.20 CN6060 Internal microphone (left) connector (2-pin) C.21 CN6061 Internal microphone (right) connector (2-pin) Page C.26 CN8810 1st battery connector (10-pin) C.27 CN9990 RTC battery connector (3-pin) C.28 CN8770 Fan0 connector (3-pin) Appendices Appendix. C Pin Assignment C-22 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521) C.29 CN8780 Fan1 connector (3-pin) Table C-29 Fan1 connector (3-pin) C.30 CN9502 CN Board I/F connector (40-pin) Table C-30 CN Board I/F connector (40-pin) Appendix. C Pin Assignment Appendices C.31 CN9540 Digitizer switch I/F connector (40-pin) Table C-31 Digitizer switch I/F connector (40-pin) CN board C.32 CN4400 Bluetooth I/F connector (20-pin) C.33 CN4621 USB I/F connector (for relay of port 6) (6-pin) Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-25 C.34 CN4620 USB I/F connector (port 6) (4-pin) Table C-34 USB I/F connector (port 6) (4-pin) C.35 CN5320 CRT I/F connector (15-pin) Table C-35 CRT I/F connector (15-pin) C.36 CN5340 S-VIDEO I/F connector (4-pin) Page Appendix. C Pin Assignment Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] C-27 C.39 CN9520 System board I/F connector (40-pin) Table C-39 System board I/F connector (40-pin) Page Appendix D Keyboard Scan/Character Codes Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] D-1 Appendix D Keyboard Scan/Character Codes Table D-1 Scan codes (set 1 and set 2) (1/4) Appendices Appendix D Keyboard Scan/Character Codes D-2 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)) Table D-1 Scan codes (set 1 and set 2) (2/4) Appendix D Keyboard Scan/Character Codes Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] D-3 Table D-1 Scan codes (set 1 and set 2) (3/4) Page Page Appendices Appendix D Keyboard Scan/Character Codes D-6 [CONFIDENTIAL] TECRA M4 Maintenance Manual (960-521)) Table D-3 Scan codes in Numlock mode Table D-4 Scan codes with Fn key Appendix D Keyboard Scan/Character Codes Appendices TECRA M4 Maintenance Manual (960-521) [CONFIDENTIAL] D-7 Table D-5 Scan codes in overlay mode Table D-6 No.124 key scan code Page Appendix E Key Layout Page Appendix F Wiring Diagrams Page Appendix G BIOS Rewrite Procedures Page Appendix H EC/KBC Rewrite Procedures Page Appendix I Reliability