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Modem Troubleshooting

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2 Troubleshooting Procedures 2.10 Modem Troubleshooting 2.10 Modem Troubleshooting This section describes how to determine if the computer's modem is functioning properly. Perform the steps below starting with Procedure 1 and continuing with the other procedures as required. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector Check and Replacement Check Procedure 1 Diagnostic Test Program Execution Check Insert the LAN/Modem/Bluetooth/IEEEE1394 test program in the USB floppy disk drive, turn on the computer and run the test. Refer to Chapter 3, Tests and Diagnostics, for more information about the diagnostics test procedures. If any errors occur while executing the Sound/Modem/LAN test, go to Procedure 2. 2-48 [CONFIDENTIAL] TECRA M5 Maintenance Manual (960-542)

Section	Page
TECRA M5 Maintenance Manual	1
SAFETY PRECAUTIONS	3
Table of Contents	6
Chapter 1 Hardware Overview	6
Chapter 2 Troubleshooting Procedures	6
Chapter 3 Tests and Diagnostics	7
Chapter 4 Replacement Procedures	8
Appendices	9
Chapter 1 Hardware Overview	11
Table of Contents	13
1.1 Features	15
1.2 System Unit Block Diagram	22
1.3 3.5-inch Floppy Disk Drive (USB External)	28
1.4 2.5-inch Hard Disk Drive	29
1.5 CD-ROM Drive	32
1.6 DVD-ROM Drive	33
1.7 CD-R/RW&DVD-ROM Drive	34
1.8 DVD-Super Multi Drive	36
1.9 Keyboard	38
1.10 TFT Color Display	39
1.10.1 LCD Module	39
1.10.2 FL Inverter Board	41
1.11 Power Supply	42
1.12 Batteries	44
1.12.1 Main Battery	44
1.12.2 Battery Charging Control	45
1.12.3 RTC battery	46
1.13 AC Adapter	47
Chapter 2 Troubleshooting Procedures	49
Table of Contents	51
2.1 Troubleshooting	55
2.2 Troubleshooting Flowchart	56
2.3 Power Supply Troubleshooting	60
2.4 System Board Troubleshooting	70
2.5 USB FDD Troubleshooting	87
2.6 HDD Troubleshooting	90
2.7 Keyboard and Touch pad Troubleshooting	95
2.8 Display Troubleshooting	98
2.9 Optical Drive Troubleshooting	100
2.10 Modem Troubleshooting	102
2.11 LAN Troubleshooting	104
2.12 Bluetooth Troubleshooting	105
2.13 Wireless LAN Troubleshooting	108
2.14 Sound Troubleshooting	111
2.15 SD Card Slot Troubleshooting	114
2.16 PCI ExpressCard Slot Troubleshooting	115
2.17 Fingerprint sensor Troubleshooting	116
Chapter 3 Tests and Diagnostics	125
Table of Contens	127
3.1 The Diagnostic Test	131
3.1.1 Diagnostics menu	131
3.1.2 H/W (Hardware) initial information setting tool	133
3.1.3 Heatrun test program	133
3.2 Executing the Diagnostic Test	134
3.2.1 Diagnostics menu (T&D)	134
3.2.2 H/W initial information setting tool	137
3.2.3 Heatrun test program	137
3.3 Setting of the hardware configuration	138
3.4 Heatrun Test	140
3.5 Subtest Names	141
3.6 System Test	143
3.7 Memory Test	145
3.8 Keyboard Test	146
3.9 Display Test	147
3.10 Floppy Disk Test	150
3.11 Printer Test	152
3.12 Async Test	154
3.13 Hard Disk Test	155
3.14 Real Timer Test	158
3.15 NDP Test	160
3.16 Expansion Test	161
3.17 CD-ROM/DVD-ROM Test	163
3.18 Error Code and Error Status Names	164
3.19 Hard Disk Test Detail Status	167
3.20 ONLY ONE TEST	169
3.20.1 Program Description	169
3.20.2 Operations	169
3.21 Head Cleaning	177
3.21.1 Function Description	177
3.21.2 Operations	177
3.22 Log Utilities	178
3.22.1 Function Description	178
3.22.2 Operations	179
3.23 Running Test	180
3.23.1 Function Description	180
3.23.2 Operations	180
3.24 Floppy Disk Drive Utilities	181
3.24.1 Function Description	181
3.24.2 Operations	182
3.25 System Configuration	186
3.25.1 Function Description	186
3.25.2 Operations	187
3.26 Wireless LAN Test Program (Intel-made a/b/g)	188
3.27 LAN/Modem/Bluetooth/IEEE1394 Test Program	193
3.27.1 LAN test	193
3.27.2 Modem test	196
3.27.3 Bluetooth test	197
3.27.4 IEEE1394 test	206
3.28 Sound Test program	207
3.28.1 Sound (Standard) test	207
3.28.2 Sound (Legacy) test	209
3.28.3 CD Sound (Standard) test	210
3.28.4 CD Sound (Legacy) test	212
3.29 SETUP	213
3.29.1 Function Description	213
3.29.2 Accessing the SETUP Program	215
Chapter 4 Replacement Procedures	231
Table of Contents	233
4.1 General	237
4.2 Battery pack	244
4.3 Express card/PC card	246
4.4 SD card	248
4.5 HDD	249
4.6 Slim select bay module	253
4.7 Memory module	256
4.8 Keyboard	258
4.9 SW membrane	263
4.10 Display assembly	265
4.11 MDC (Modem Daughter Card)	270
4.12 Wireless LAN card	272
4.13 Internal microphone	275
4.14 Sound board	276
4.15 RTC battery	278
4.16 Video board	280
4.17 GPU heat sink	282
4.18 CPU heat sink/CPU	284
4.19 Fan	288
4.20 System board/HDD cable/DC-IN jack	290
4.21 LAN/Modem jack	293
4.22 PC card slot	294
4.23 Battery lock/Battery latch/ODD latch	295
4.24 LCD unit/FL inverter	297
4.25 Touch pad	302
4.26 Finger print sensor board	304
4.27 Bluetooth module	306
4.28 Hinge	308
4.29 Speaker	314
4.30 Wireless LAN antenna/Bluetooth antenna	316
4.31 LCD cover latch	318
4.32 Fluorescent Lamp	319
4.32.1 Replacing the 14.1-inch XGA Samsung Fluorescent Lamp	320
4.32.2 Replacing the 14.1-inch SXGA+ Samsung Fluorescent Lamp	324
Appendices	329
Table of Contents	331
Appendix A Handling the LCD Module	337
Appendix B Board Layout	343
B.1 System Board (FDBGS*) Front View	343
B.2 System Board (FDBGS *) Back View	345
B.3 GN Board (FDBGN*) Front and Back View	347
B.4 GR Board (FDBGR*) Front and Back View	348
B.5 GF Board (FDBGF*) Front and Back View	349
Appendix C Pin Assignments	351
C.1 CN1400 SO-DIMM0 connector (200-pin)	351
C.2 CN1410 SO-DIMM1 connector (200-pin)	354
C.3 CN1801 Select bay interface connector (72-pin)	357
C.4 CN1850 SATA interface connector (11-pin)	358
C.5 CN2100 PC card interface connector (150-pin)	359
C.6 IS2101 SD card interface connector (12-pin)	361
C.7 CN2300 Docking interface connector (240-pin)	362
C.8 CN2600 Mini PCI Express interface connector (52-pin)	365
C.9 CN3010 MDC interface connector (12-pin)	366
C.10 CN3011 Modem connector (4-pin)	366
C.11 CN3200 Keyboard interface connector (34-pin)	367
C.12 CN3201 PAD interface connector (8-pin)	367
C.13 CN3401 Parallel interface connector (25-pin)	368
C.14 CN3250 Switch interface connector (13-pin)	368
C.15 CN4100 LAN interface connector (14-pin)	369
C.16 CN4200 IEEE 1394 interface connector (4-pin)	369
C.17 CN4400 Bluetooth interface connector (20-pin)	369
C.18 CN4610 USB connector (4-pin)	370
C.19 CN5000 LCD interface connector (40-pin)	370
C.20 CN5080 RGB connector (15-pin)	371
C.21 CN5300 DVI/TV interface connector (40-pin)	371
C.22 CN8800 DC-IN connector (4-pin)	372
C.23 CN8810 1st Battery connector (10-pin)	372
C.24 CN9390 RTC Battery connector (3-pin)	372
C.25 CN8771 FAN interface connector (4-pin)	372
C.26 CN9500 GN board interface connector (40-pin)	373
C.27 CN9501 GN board interface connector (10-pin)	373
C.28 CN9700 GF board interface connector (8-pin)	374
C.29 PJ9510 System board interface connector (40-pin)	375
C.30 CN9511 System board interface connector (10-pin)	375
C.31 CN4620 USB interface connector (8-pin)	376
C.32 CN6050 Internal microphone connector (2-pin)	376
C.33 J6051 External microphone connector (6-pin)	376
C.34 CN6170 Speaker connector (4-pin)	376
C.35 J6310 Headphone connector (6-pin)	377
C.36 CN9540 System board interface connector (8-pin)	378
C.37 CN9610 System board interface connector (20-pin)	379
C.38 CN9611 Serial connector (9-pin)	379
C.39 CN5502 S-Video connector (4-pin)	379
Appendix D Keyboard Scan/Character Codes	381
Appendix E Key Layout	389
E.1 United Kingdom (UK) Keyboard	389
E.2 United States (US) Keyboard	389
Appendix F Wiring diagrams	391
F.1 Serial Port Wraparound Connector	393
Appendix H EC/KBC rewrite procedures	395