Toshiba PORTEGE M400 User Manual Page 289
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- Table of contents
- TROUBLESHOOTING
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4.18 Heat sink/CPU 4 Replacement Procedures
4.18 Heat sink/CPU
Removing the Heat sink/CPU
The following describes the procedure for removing the heat sink/CPU. (See Figure 4-32 and
4-33.)
1. Turn over the system board.
2. Remove the following screws securing the CPU hold plate in the reverse order of the
numbers marked on the CPU hold plate and remove the CPU hold plate.
• M2.0×4.0B BIND screw ×3
CAUTION: Remove the screws in the order of mark “3”, “2” and “1” on the CPU
holder.
M2.0x4.0B BIND
M2.0x4.0B BIND
Heat sink
CPU hold plate
Figure 4-32 Removing the heat sink
PORTEGE M400 Maintenance Manual (960-541) [CONFIDENTIAL] 4-51
- Toshiba Personal Computer 1
- PORTEGE M400 1
- Maintenance Manual 1
- Preface 3
- Format complete 5
- System transferred 5
- Table of Contents 6
- Chapter 1 11
- Hardware Overview 11
- 1 Hardware Overview 12
- Chapter 1 Contents 13
- 1.1 Features 15
- Solo Processor 22
- Duo Processor 22
- 1.3 Optical Drive 28
- 1.4 Keyboard 34
- 1.5 TFT Color Display 35
- 1.6 Power Supply 37
- 1.7 Batteries 39
- (Power ON) 41
- 1.8 AC Adapter 42
- Chapter 2 43
- Troubleshooting 43
- 2 Troubleshooting 44
- Chapter 2 Contents 45
- 2.1 Troubleshooting 49
- PPV output (P65_CH0) 60
- PTV output (P66_CH0) 60
- 1R5-E1V output (P63_CH1) 60
- 1R8-B1V output (P64_CH1) 60
- Inspection items Details 76
- 2.7 Keyboard Troubleshooting 88
- 2.8 Display Troubleshooting 89
- 2.11 Modem Troubleshooting 93
- 2.13 LAN Troubleshooting 97
- 2.14 Sound Troubleshooting 98
- Fingerprint 104
- sensor 104
- Chapter 3 113
- Tests and Diagnostics 113
- 3 Tests and Diagnostics 114
- Chapter 3 Contents 115
- 3 Tests and Diagnostics 117
- 3.1 The Diagnostic Test 119
- 3.5 Heatrun Test 137
- 3.6 Subtest Names 138
- 3.7 System Test 140
- 3.8 Memory Test 142
- 3.9 Keyboard Test 143
- 3.10 Display Test 144
- 3.11 Floppy Disk Test 147
- 3.12 Printer Test 149
- 3.13 Async Test 151
- 3.14 Hard Disk Test 152
- HARD DISK TEST XXXXXXX 153
- 3.15 Real Timer Test 155
- Current date : 12-31-1999 156
- Current time : 23:59:58 156
- Current date : 01-01-2000 156
- Current time : 00:00:00 156
- 3.16 NDP Test 157
- 3.17 Expansion Test 158
- 3.18 CD-ROM/DVD-ROM Test 160
- 3.21 Only One Test 166
- 3.22 Head Cleaning 174
- 3.23 Log Utilities 175
- 3.24 Running Test 177
- Another dump (1:Yes,2:No) ? 182
- 3.26 System Configuration 183
- 3.26.2 Operations 184
- SELECT TEST No, (1-5) : 185
- * * 187
- Error count = 00000 195
- [Modem loopback test !] 197
- Table 3-5 Error message 200
- Error code 205
- 3.30 Sound Test program 208
- Press any key to continue… 209
- [Ctrl]+[Break] : test end 211
- [Ctrl]+[C] : key stop 211
- 3.31 SETUP 214
- Are you sure? (Y/N) 218
- Alarm Time = 00:00:00 225
- Wakeup on LAN = Disabled 225
- PCI BUS = IRQ10, IRQ11 227
- Chapter 4 233
- Replacement Procedures 233
- 4 Replacement Procedures 234
- Chapter 4 Contents 235
- 4.1 Overview 239
- Back flip connector 242
- Grip area 245
- 4.2 Battery pack 246
- 4.3 PC card/Bridge media 248
- Bridge media 249
- (SD card) 249
- 4.4 Touch pen case 250
- 4.5 HDD 251
- HDD cable 252
- HDD assembly 252
- 4.6 Slim select bay module 255
- 4.7 Keyboard 258
- Keyboard 259
- M2.0x3.0S BIND 259
- M2.5x3.0S S-THIN HEAD 260
- Keyboard cover 260
- Keyboard flexible cable 260
- 4.8 Memory module 262
- 4.9 Bluetooth module 265
- 4.10 Wireless LAN card 267
- 4.11 Touch pad 269
- Touch pad cover 270
- 4.12 Top cover assembly 274
- M2.0×4.0B BIND 275
- Top cover assembly 278
- Insulator 280
- System board 281
- Front panel 281
- 4.14 Cover latch 283
- Battery lock assembly 284
- Pen holder assembly 284
- 4.16 Microphone/Front panel 285
- 4.17 Fan 287
- 4.18 Heat sink/CPU 289
- 4.19 MDC 292
- MDC cable 293
- 4.20 GPU heat sink 294
- 4.21 HDD cable 295
- 4.22 Sensor board 296
- 4.23 Speaker 297
- Acetate tape 298
- 4.24 Hinge spacer 300
- 4.25 LCD unit/FL inverter 301
- FL inverter 302
- M2.0x4.0B BIND 303
- LCD unit 303
- Glass tape 304
- LCD cable 304
- Digitizer cable 304
- 4.26 Digitizer 306
- Digitizer 311
- M2.5x4.0B FLAT HEAD 314
- Switch board 314
- Switch cable 314
- 4.29 LCD latch assembly 315
- 4.30 Hinge assembly 316
- 4.31 Fluorescent lamp 318
- Appendices 333
- Appendix Contents 335
- Appendix A 341
- Appendix B Board Layout 347
- B.2 System board Back View 349
- Number Name 351
- Appendix C Pin Assignment 355
- ZBIDDP-EXP I/O 366
- ZBIDCN-EXP 366
- ZBIDCP-EXP 366
- C.28 CN8810 1 375
- battery connector (10-pin) 375
- NF board (FAPNF*) 378
- NP board (FAPNP*) 379
- NW board (FAPNW*) 380
- Appendix E Key Layout 389
- Appendix F Wiring Diagrams 391
- Appendix H 395
- Appendix I Reliability 397
- Reception 399
- Is the RAID configured 399
- Identify the failed HDD (*2) 399
- Analysis by Drive Log (*3) 399
- (1) Which port of 400
- HDD failed? 400
- RAID-0 or RAID 1 406
- The following is displayed 424
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