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Battery Pack

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1020 Battery Pack Notes: 1. Be careful that the computer does not fall backward when the battery pack is removed. 2. When replacing the battery pack, check that the storage switch of the new battery is set to the on (|) position. Do not operate the storage switch of a battery that has been used and is going to be re-used. 3. Check that the keyboard latch springs are in place. 428 IBM Mobile Systems HMM

Section	Page
Introduction	11
Portable Computer Descriptions	12
Drive and Diskette Compatibility Matrix	14
Important Service Information	15
How to Use Error Messages	16
How to Read POST Error Messages	16
Safety Notices (Multi-lingual	17
Safety Information	24
General Safety	24
Electrical Safety	25
Safety Inspection Guide	26
Handling Electrostatic Discharge-Sensitive Devices	28
Grounding Requirements	28
Laser Compliance Statement	29
Screw Size Chart	30
ThinkPad 340x (IBM 2610)	33
General Checkout	35
Memory Checkout	36
System Board	37
Keyboard/Auxiliary Input Device	37
TrackPoint II and III Checkout	38
Diskette Drive Test	38
Power Systems Checkout	39
Power Management Features	43
Symptom-to-FRU Index	44
Numeric Error Codes	45
FRU Codes	47
Beep Symptoms	48
No Beep Symptoms	48
LCD Related Symptoms	49
Keyboard/TrackPoint II or III Related Symptoms	50
Indicator Related Symptoms	50
Power Related Symptoms	50
Function/Audio Related Symptoms	51
Peripheral Device Related Symptoms	52
Other Symptoms	52
Intermittent Problems	52
Undetermined Problems	52
Related Service Procedures	53
Status Indicators	54
How to Run the Diagnostics	55
Error Log	55
Reset Pushbutton	56
Checking the Installed Devices List	56
How to Run the Low Level Format	56
PC Test Card LED	56
Fn Key Combinations	57
How To Run the Keyboard Diagnostics	57
Product Overview	58
FRU Removals and Replacements	59
1010 Rear Connector Door	60
1020 Battery Pack	60
1030 Backup Battery	61
1040 IC DRAM Card	61
1050 Standby Battery	61
1060 Top Cover	62
1070 Indicator Card	63
1080 Keyboard Unit	64
1090 LCD Assembly	65
1100 Diskette Drive	67
1110 Hard Disk Drive	67
1120 System Board/Speaker	68
Locations	69
Front View	69
Rear View	70
Interior View	70
System Board	71
Indicator Card	71
Parts Listing	72
ThinkPad 700, 700C, 720, 720C	77
General Checkout	78
Memory Checkout	80
Power Systems Checkout	81
Power Management Features	91
Symptom-to-FRU Index	92
Numeric Error Codes	92
Beep Symptoms	98
Miscellaneous Symptoms	99
Undetermined Problem	103
Related Service Procedures	104
System Status Indicators	104
Check Point (CP) Codes	106
System Error Log	106
Checking the Installed Devices List	107
Power-On Password (700, 700C)	107
Power-On Password (720, 720C)	107
Privileged-Access Password (PAP)	107
Set Startup Sequence	108
Restore System Partition	108
Hard Disk Low Level Format	109
Replacing the Hard Disk Drive	109
System Diskettes	110
Making a System Partition Backup Copy	111
173 and 11350 Error Combination	112
PCMCIA Card Removal Tip	112
Product Overview	112
FRU Removals and Replacements	114
Locations	120
Front View	120
System Board (700)	121
System Board (720, 720C)	122
Video Card	123
Keyboard Control Card	123
Voltage Converter	124
Parts Listing (700)	125
Parts Listing (720, 720C)	128
FRU Service Procedures	134
ThinkPad 701C/701CS (2630)	135
Checkout Guide	137
General Checkout	138
Memory Checkout	138
Keyboard/Auxiliary Input Device	141
TrackPoint III Checkout	142
Diskette Drive Checkout	143
Hard Disk Drive Checkout	143
MultiPort II Checkout	144
Power Systems Checkout	145
Infrared Transceiver Checkout	147
PCMCIA Checkout	149
Symptom-to-FRU Index	151
Numeric Error Codes	152
FRU Codes	154
Beep Symptoms	155
No-Beep Symptoms	156
LCD-Related (Video) Symptoms	156
Keyboard and TrackPoint III Symptoms	158
MultiPort II Related Symptoms	158
Indicator Related Symptoms	159
Power Related Symptoms	159
Function Related Symptoms	160
Infrared Related Symptoms	161
Audio Related Symptoms	161
Peripheral Device Related Symptoms	161
Other Symptoms	162
Intermittent Problems	162
Undetermined Problems	162
Related Service Procedures	164
Understanding Fn Key Combinations	164
Reading Status Indicators	165
Running the Diagnostics	166
Printing and Displaying Error Logs	167
Checking Installed Devices	167
Running the Low-Level Format	168
Reading the PC Test Card LED	168
Removing PCMCIA Cards	169
Product Overview	169
FRU Removals and Replacements	171
Locations	191
Front View	191
Left Side View	192
Right Side View	192
Rear View	193
Top System Board (Top View)	194
Top System Board (Bottom View)	195
Bottom System Board (Top View)	196
Bottom System Board (Bottom View)	197
Inverter Card (Front View)	198
Inverter Card (Rear View)	198
MultiPort II (Front View)	199
MultiPort II (Rear View)	199
Parts Listing	200
ThinkPad 355x, 360x, 370C, 750x,,755C,755Cs	205
Read This First	207
General Checkout	210
Memory Checkout	211
System Board and Processor Card Checkout (370C, 750Ce, 755C, 755Cs)	213
Keyboard/Auxiliary Input Device Checkout	213
TrackPoint II checkout	214
Pen and Digitizer Checkout	215
Audio Card Checkout	215
Diskette Drive Test	216
Power Systems Checkout	217
Power Management Features	223
Symptom-to-FRU Index	226
Numeric Error Codes	227
FRU Codes	230
Beep Symptoms	231
No Beep Symptoms	232
LCD Related Symptoms	233
Keyboard/TrackPoint II Related Symptoms	233
Indicator Related Symptoms	234
Power Related Symptoms	234
Function/Audio Related Symptoms	234
Peripheral Device Related Symptoms	235
Other Symptoms	236
Intermittent Problems	236
Undetermined Problems	237
Related Service Procedures	238
Status Indicators	238
How to Run the Diagnostics	239
Error Log	239
Checking the Installed Devices List	240
Password Combinations	240
How to Run the Low Level Format	240
PC Test Card LED	241
Fn Key Combinations	241
How To Run the Keyboard Diagnostics	241
Product Overview	242
Models 355x, 360x	242
Model 370C	243
Model 750x	243
Models 755C, 755Cs	245
FRU Removals and Replacements	246
Removals Models 355x, 360x	247
1010 Rear Connector Door	247
1015 Foot	247
1020 Battery Pack	248
1030 Diskette Drive	249
1035 Hard Disk Drive	250
1040 Keyboard Unit	251
1050 IC DRAM Card	254
1055 Diskette Drive Bezel	254
1060 Status Indicator	255
1070 LCD Assembly	257
1080 Modem Card (355x)	259
1085 Bezel (360x)	259
1090 Speaker Shield Assembly	263
1095 Interposer Card	263
1100 DC/DC Card	265
1110 Backup Battery	266
1115 Standby Battery	266
1120 System Board Assembly	267
1130 PCMCIA Slot Assembly	269
Removals Models 370C, 750x, 755C, 755Cs	271
2010 Rear Connector Door	271
2015 Foot	271
2020 Battery Pack	272
2030 Diskette Drive	273
2035 Hard Disk Drive	274
2040 Keyboard Unit	275
2050 IC DRAM Card	278
2055 DIMM and DIMM Adapter (755C, 755Cs)	279
2056 Diskette Drive Bezel	281
2060 Status Indicator	282
2070 LCD Assembly	284
2080 Speaker Shield Assembly	287
2085 Audio Card	290
2090 Interposer Card	290
2100 DC/DC Card	291
2110 Backup Battery	292
2105 Standby Battery	292
2120 System Board Assembly	294
2130 PCMCIA Slot Assembly	296
2140 Processor Card (750Ce, 755C, 755Cs)	297
Locations	299
System - Front View (750, 750Cx, 755Cx, 370C, 360x, 355x)	299
System Front View - (750P, 360P, 360PE)	300
System Rear View - All Models	301
System Board (Top View)	302
System Board (Bottom View)	303
Processor Card (370C, 750Ce, 755C, 755Cs)	304
DC/DC Card - Top View	304
Interposer Card - All Models (Front View)	305
Parts Listing	306
Models 350x, 360x	306
Model 370C	310
Model 750x	313
Models 755C and 755Cs	317
Common/Option Parts List	320
ThinkPad 755CD, 755CDV (9545)	325
General Checkout	327
Memory Checkout	327
System Board and Processor Card Checkout	329
Keyboard/Auxiliary Input Device Checkout	330
TrackPoint III Checkout	330
Game Port Checkout	331
Diskette Drive Test	331
Power Systems Checkout	332
Power Management Features	338
Port Replicator Power Overload	340
Symptom-to-FRU Index	341
Numeric Error Codes	341
FRU Codes	344
Beep Symptoms	345
No Beep Symptoms	346
LCD Related Symptoms	346
Model 755CDV Symptoms	347
Keyboard/TrackPoint III Related Symptoms	349
Indicator Related Symptoms	349
Power Related Symptoms	349
Function/Audio Related Symptoms	350
Peripheral Device Related Symptoms	351
Other Symptoms	351
Infrared Related Symptoms	352
Intermittent Problems	352
Undetermined Problems	353
Related Service Procedures	354
Status Indicators	354
How to Run the Diagnostics	355
Error Log	356
Reset Pushbutton	356
Checking the Installed Devices List	356
Password Combinations	357
How to Run the Low Level Format	357
PC Test Card LED	357
Fn Key Combinations	358
How To Run the Keyboard Diagnostics	358
Product Overview	359
FRU Removals and Replacements	360
2010 Rear Connector Door	361
2015 Foot	361
2020 Battery Pack	362
2030 CD-ROM/Diskette Drive	363
2040 Hard Disk Drive	364
2050 IC DRAM Card or DIMM Adapter	365
2060 Keyboard Spacer	368
2080 Keyboard Unit	369
2090 Status Indicator	372
2100 Standby Battery and Front IR	373
2110 Backup Battery	374
2115 Logic Assembly	375
2120 Shield Assembly	377
2125 Video Card or Rear IR	378
2130 DC/DC Card	379
2140 DSP Card	380
2150 Interposer Card	381
2160 System Board Assembly	382
2170 PCMCIA Slot Assembly	383
2180 Processor Card	385
2190 LCD Assembly	387
2195 LCD Rear Cover (755CDV only)	388
2200 Lower Shield Assembly	389
2210 Memory Card	390
Locations	391
Front View	391
Rear View	392
Parts Listing	393
Common/Option Parts List	396
ThinkPad 755CE, 755CSE, 755CV, 755CX (9545)	401
General Checkout	403
Memory Checkout	403
System Board and Processor Card Checkout	405
Keyboard/Auxiliary Input Device Checkout	406
TrackPoint III Checkout	406
Diskette Drive Test	407
Power Systems Checkout	408
Power Management Features	415
Port Replicator Power Overload	417
Symptom-to-FRU Index	418
Numeric Error Codes	418
FRU Codes	421
Beep Symptoms	422
LCD Related Symptoms	423
Model 755CV Symptoms	424
Keyboard/TrackPoint III Related Symptoms	426
Indicator Related Symptoms	426
Power Related Symptoms	426
Function/Audio Related Symptoms	427
Peripheral Device Related Symptoms	427
Infrared Related Symptoms	428
Other Symptoms	428
Intermittent Problems	428
Undetermined Problems	429
Related Service Procedures	430
Status Indicators	430
How to Run the Diagnostics	431
Error Log	431
Reset Pushbutton	432
Checking the Installed Devices List	432
Password Combinations	432
How to Run the Low Level Format	433
PC Test Card LED	433
Fn Key Combinations	433
How To Run the Keyboard Diagnostics	434
Product Overview	434
FRU Removals and Replacements	436
1010 Rear Connector Door	437
1015 Foot	437
1020 Battery Pack	438
1030 Diskette Drive	439
1040 Hard Disk Drive	440
1050 IC DRAM Card or DIMM Adapter	441
1070 Diskette Drive Bezel	444
1080 Keyboard Unit	445
1090 Status Indicator	447
1100 Standby Battery and Front IR	448
1110 Backup Battery	449
1115 Logic Assembly	450
1120 Shield Assembly	452
1130 DC/DC Card	455
1140 DSP Card	456
1150 Interposer Card and Rear IR	457
1160 System Board Assembly	458
1170 PCMCIA Slot Assembly	459
1180 Processor Card	461
1190 LCD Assembly	463
1195 LCD Rear Cover (755CV only)	465
1200 Lower Shield Assembly	466
1210 Memory Card	467
Locations	468
Front View	468
Rear View	469
Parts Listing	470
Common/Option Parts List	474
Common Devices Checkout	479
External Diskette Drive Test	480
External Display Self-Test	480
External Keyboard/Auxiliary Input Device Checkout	481
Fax/Modem Checkout	482
Printer Checkout	484
Port Replicator Checkout	485
TrackPoint II Checkout	486
TV Tuner	487
Using the Front Panel	488
Troubleshooting	491
Common Parts Listing	493
Miscellaneous Information	499
Acronyms, Abbreviations and Terms	499
Send Us Your Comments!	501
Do You Need Technical References?	502
Problem Determination Tips	503
Phone Numbers, U.S. and Canada	504