Toshiba Tecra M10

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2.9 Display Troubleshooting 2 Troubleshooting Procedures

Procedure 3 Connector and Cable Check

LCD Module is connected to system board by an LCD/FL cable. FL inverter board is also

connected to system board by an LCD/FL cable. In addition, fluorescent lamp is connected to

FL inverter board by HV cable. Their cables may be disconnected from system board or FL

inverter board. Disassemble the computer following the steps described in Chapter 4,

Replacement Procedures.

If the connection is loose, reconnect firmly and restart the computer. If the problem still

occurs, go to Procedure 4.

TECRA M10 Maintenance Manual (960-685) [CONFIDENTIAL] 2-47

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Default Chapter3
- Safety Precautions3
- Table of Contents6
Chapter 1 Hardware Overview11
- Hardware Overview13
- Features ...................................................................................................................... 1-113
- System Unit Block Diagram ...................................................................................... 1-913
- Inch Floppy Disk Drive (USB External) ........................................................... 1-1513
- Inch Hard Disk Drive......................................................................................... 1-1613
- Optical Drive (ODD) ............................................................................................... 1-1813
- Keyboard................................................................................................................. 1- 2213
  - TFT Color Display.................................................................................................. 1- 2313
  - Power Supply .......................................................................................................... 1- 2613
- Batteries .................................................................................................................. 1- 2813
- Features15
- Figure 1-1 Front of the Computer21
- Figure 1-2 System Unit Configuration22
- System Unit Block Diagram23
- Figure 1-4 3.5-Inch FDD (USB External)29
- 2.5-Inch Hard Disk Drive30
- Figure 1-6 DVD Super Multi Drive34
- DVD Super Multi Drive Outline Dimensions35
- TFT Color Display37
  - Figure 1-8 LCD Module37
  - FL Inverter Board Specifications39
- Power Supply40
Chapter 2 Troubleshooting Procedures47
Tables51
- Figures51
- Table51
- Troubleshooting53
- Troubleshooting Flowchart55
- Power Supply Troubleshooting60
  - Power Status Check60
  - Battery Icon60
  - DC in Icon61
  - Error Code Check62
  - Error Code63
  - DC Power Supply (AC Adapter)63
  - 2Nd Battery64
  - S3V Output64
  - E5V Output64
  - Connection Check68
  - Charging Check68
  - Replacement Check69
- System Board Troubleshooting70
  - Message Check71
  - Serial Port Check or Debugging Port Check73
  - A Set of Tool for Debug Port Test73
  - Debug Port Error Status75
  - Diagnostic Test Program Execution Check84
- USB FDD Troubleshooting85
  - FDD Head Cleaning Check85
  - FDD Error Code and Status86
  - Connector Check and Replacement Check87
  - 2.5” HDD Troubleshooting89
  - Partition Check89
  - Hard Disk Drive Error Code and Status92
- Keyboard Troubleshooting94
- Touch Pad Troubleshooting96
- Display Troubleshooting98
- External Monitor Check98
- Optical Disk Drive Troubleshooting101
- Modem Troubleshooting103
- LAN Troubleshooting105
- Wireless LAN Troubleshooting106
  - Transmitting-Receiving Check106
  - Antennas' Connection Check107
- Bluetooth Troubleshooting109
- Sound Troubleshooting111
- Bridge Media Slot Troubleshooting113
- Check on Windows os113
- PCI Expresscard Slot Troubleshooting114
  - Gigabit Ether Expresscard114
  - USB2.0 5In1 Expresscard114
  - Fingerprint Sensor Troubleshooting115
  - Setting Windows Log-ON Password116
  - Registration of Fingerprint116
  - Authentication of Fingerprint117
- Web Camera Troubleshooting119
- Intel Turbo Memory Troubleshooting121
Chapter 3 Tests and Diagnostics123
- The Diagnostic Test129
- Executing the Diagnostic Test132
  - Diagnostics Menu (T&D)133
  - H/W Initial Information Setting Tool136
  - Heatrun Test Program136
- Setting of the Hardware Configuration137
  - Initial Configuration137
  - DMI Information Save138
  - DMI Information Recovery138
- Heatrun Test139
- Subtest Names140
- System Test142
  - ROM Checksum142
  - Fan ON/OFF142
  - Geyserville142
  - Quick Charge143
  - DMI Read143
- Memory Test144
  - Conventional Memory144
  - Protected Mode144
  - Cache Memory (On/Off)144
- Keyboard Test145
- Pressed Key Code Display145
- Display Test146
  - VRAM Read/Write for VGA146
  - Gradation for VGA146
  - Gradation for LCD146
  - Gradation & Mode Test for VGA147
  - All Dot On/Off for LCD147
  - “H” Pattern Display148
  - LCD Brightness148
  - LCD EDID Information148
- Floppy Disk Test149
  - Sequential Read150
  - Sequential Read/Write150
  - Random Address/Data150
  - Write Specified Address150
- Printer Test151
- Ripple Pattern151
- Async Test153
  - FIR/SIR Point to Point (Send)153
  - FIR/SIR Point to Point (Receive)153
  - Wraparound (Board)153
- Hard Disk Test154
  - Cross Talk & Peak Shift156
  - Partial Read156
  - Read Specified Address156
  - W-R-C Specified Address156
- Real Timer Test157
  - Backup Memory157
  - Real Time Carry158
- NDP Test159
- Expansion Test160
  - PCMCIA Wraparound160
  - RGB Monitor ID161
- CD-ROM/DVD-ROM Test162
- Error Code and Error Status Names163
- Hard Disk Test Detail Status166
- HDC Error Register Contents167
- Only One Test168
  - Program Description168
  - Pressed Key Display (Main Key)169
  - Touch Pad170
  - Wireless Communication Switch171
  - Usb171
  - Acceleration Sensor174
  - Docker Dock/Undock176
  - Fan Control176
- Head Cleaning177
- Log Utilities178
- Running Test180
- Floppy Disk Drive Utilities181
  - FORMAT Program182
  - COPY Program183
  - DUMP Program184
  - HDD ID READ Program185
- System Configuration186
- Wireless LAN Test Program (Atheros)188
  - Check of the Wireless LAN Card Type188
  - Check of the Antenna Connection189
- Wireless LAN Test Program (Intel-Made A/B/G/N Setting up of REF PC)190
  - Configuration of Equipment for Transmitting-Receiving Test190
  - How to Setup the REF PC190
  - Install from Disk Window193
  - Select Network Protocol Window193
  - Local Area Connection Properties Window193
- Wireless LAN Test Program on DUT PC (Intel-Made)195
- Lan/Modem/Bluetooth/Ieee1394 Test Program199
  - LAN Test199
  - Modem Test202
  - Bluetooth Test203
  - IEEE1394 Test205
  - Transmit & Receive Test205
  - Responder Set205
- Sound Test Program206
- Test Program206
- Setup207
  - Accessing the SETUP Program209
  - Moving Within the SETUP Menu and Changing Values211
  - Accepting Changes and Exiting the SETUP Window211
  - The Factory Preset Configuration211
  - SETUP Options212
  - Boot Priority213
  - HDD Password Mode213
  - User Password213
  - Master Password213
  - HDD Priority214
  - Core-Multi Processing214
  - Dynamic CPU Frequency Mode214
  - Execute-Disable Bit Capability215
  - Virtualization Technology215
  - Trusted Execution Technology215
  - Auto Power on216
  - Critical Battery Wake-Up217
  - Beep Volume217
  - Diagnostic Mode217
  - USB Sleep and Charge217
  - Configuration218
  - Battery Save Mode218
  - Low Power218
  - Battery Save Options219
  - Processing Speed219
  - CPU Sleep Mode219
  - Cooling Method219
  - PCI Express Link ASPM220
  - Enhanced C-States220
  - I/O Ports220
  - Drives I/O221
  - PCI Bus221
  - Display221
  - Legacy Emulation222
  - Internal Pointing Device222
  - USB Kb/Mouse Legacy Emulation222
  - USB-FDD Legacy Emulation222
  - Pci Lan223
  - Security Controller223
  - USB Memory BIOS Support Type223
Chapter 4 Replacement Procedures225
- Overview233
- Battery Pack243
- PC Card/Bridge Media/Smart Card247
- Fin Cover253
- Optical Disk Drive (DVD-ROM/DVD-Super Multi Drive)257
- RGB Harness/Rj45 Harness285
- System Board290
- GFX Board/Gfx Fin294
- Sound Board/Microphone Harness (14.1-Inch Model)306
- Bluetooth Module315
- Camera Module/Wireless LAN Antenna/3G Antenna324
- Hinge337
- Fluorescent Lamp342
Appendices371
Appendix A Handling the LCD Module373
Appendix B Board Layout373
Appendix C Pin Assignments373
Appendix F Wiring Diagrams375
Appendix E Key Layout375
Appendix G BIOS Rewrite Procedures376
Appendix I Reliability376
Appendix A Handling the LCD Module381
- System Board (FG6IN) Front View387
Appendix B Board Layout387
- System Board (FG6IN*) Back View389
- System Board (FGGIN*) Front View391
- System Board (FGGIN*) Back View393
- System Board (FGAIN*) Front View395
- System Board (FGAIN*) Back View397
- P-SW Board (FG6SW*/FGGSW*/FGASW*) View399
- USB/MDC Board (FG6US*/FGGUS*/FGAUS*) View400
- Serial Board (FG6SR*/FGGSR*) View401
- Sound Board (FG6SN*/FGGSN*/FGASN*) View402
- Finger/Pad Button Board (FGGFS*) View403
- Pad Button Board (FGGTP*) View404
- SIM Board (FGGSM*) View405
- GPU Board (FGGNM*) View406
- ODD FPC (FGGOD*) View407
- CN1400 Memory a Connector(200-Pin)409
Appendix C Pin Assignments409
- CN1410 Memory B Connector (200-Pin)412
- CN1900 SATA HDD Interface Connector (20-Pin)415
- CN1950 SATA ODD Interface Connector (13-Pin)415
- Table415
Appendix D Keyboard Scan/Character Codes460
- No.124 Key Scan Code461
- Scan Codes in Overlay Mode461
- No.126 Key Scan Code462
- United Kingdom (UK) Keyboard463
- United States (US) Keyboard463
Appendix E Key Layout463
Appendix F Wiring Diagrams465
- RGB Monitor Loopback Connector465
- RS-232C Loopback Connector465
  - RS-232C Direct Connection Cable (9-Pin to 25-Pin)466
  - LAN Loopback Connector467
- RS-232C Direct Connection Cable (9-Pin to 9-Pin)466
Appendix Gbios Rewrite Procedures469
- Rewriting the BIOS469
Appendix Hec/Kbc Rewrite Procedures471
- Rewriting the EC/KBC471
Appendix I Reliability473

Toshiba Tecra M10 - Page 99

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