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Batteries, 13.1 Main Battery

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1 Hardware Overview 1.13 Batteries 1.13 Batteries The PC has the following two batteries. q Main battery q Real time clock (RTC) battery Table 1-12 lists the specifications for these two batteries. Table 1-12 Battery specifications Battery Name G71C0003U210 Main battery Real time clock (RTC) battery G71C0003U110 G71C0003V210 G71C0003V110 G71C0003W210 G71C0003W110 P71035017110 Material lithium ion (3-cell) Output Voltage Capacity 2,200mAh lithium ion (6-cell) lithium ion (12-cell) 10.8V 4,400mAh 8,800mAh Nickel metal hydride 3.0V 17mAh 1.13.1 Main Battery The main battery is the primary power supply for the computer when the AC adapter is not connected. In resume (instant recovery) mode, the main battery maintains the current status of the computer. 1-30 Satellite A50/TECRA A2 Maintenance Manual (960-478)

Section	Page
Table of Contents	6
Chapter 1 Hardware Overview	11
1.1 Features	15
1.2 System Block Diagram	20
1.3 3.5-inch USB Floppy Disk Drive	24
1.4 2.5-inch Hard Disk Drive	25
1.5 CD-ROM Drive	30
1.6 DVD-ROM Drive	31
1.7 DVD-ROM & CD-R/RW Drive	32
1.8 DVD-R/-RW drive	34
1.9 DVD Super Multi drive	35
1.10 Keyboard	37
1.11 TFT Color Display	38
1.12 Power Supply	42
1.13 Batteries	44
1.14 AC Adapter	48
Chapter 2 Troubleshooting Procedures	49
2.1 Troubleshooting	55
2.2 Troubleshooting Flowchart	56
2.3 Power Supply Troubleshooting	60
2.4 System Board Troubleshooting	71
2.5 3.5” FDD Troubleshooting	85
2.6 2.5” HDD Troubleshooting	88
2.7 Keyboard Troubleshooting	93
2.8 Display Troubleshooting	94
2.9 Touch Pad Troubleshooting	96
2.10 Optical Drive Troubleshooting	97
2.11 Modem Troubleshooting	98
2.12 LAN Troubleshooting	99
2.13 Sound Troubleshooting	100
2.14 Wireless LAN Troubleshooting	102
Chapter 3 Tests and Diagnostics	105
3.1 The Diagnostic Test	109
3.2 Executing the Diagnostic Test	111
3.3 Setting of the hardware configuration	115
3.4 Subtest Names	117
3.5 System Test	119
3.6 Memory Test	123
3.7 Keyboard Test	125
3.8 Display Test	128
3.9 Floppy Disk Test	131
3.10 Printer Test	133
3.11 Async Test	135
3.12 Hard Disk Test	137
3.13 Real Timer Test	140
3.14 NDP Test	142
3.15 Expansion Test	143
3.16 CD-ROM/DVD-ROM Test	145
3.17 Sound/LAN/Modem /TV Test	146
3.18 IEEE1394 Test	151
3.19 Wireless LAN Test (Atheros)	152
3.20 Wireless LAN Test (Calexico)	156
3.21 Thermal Radiation Control Test	160
3.22 Error Code and Error Status Names	161
3.23 Hard Disk Test Detail Status	165
3.24 FDD Cleaning	167
3.25 Log Utilities	168
3.26 Running Test	170
3.27 Floppy Disk Drive Utilities	172
3.28 System Configuration	177
3.29 SETUP	179
Chapter 4 Replacement Procedures	197
4.1 Overview	205
4.2 Battery Pack/PC Card	212
4.3 Memory Module	215
4.4 MDC Modem	217
4.5 HDD	219
4.6 Mini PCI Card	222
4.7 Cooling Fin/CPU	224
4.8 Keyboard	229
4.9 Switch Board	233
4.10 Optical Drive	235
4.11 Display Assembly	237
4.12 Sound Board	241
4.13 Connector Board	243
4.14 Fan	245
4.15 System Board/DC-IN Jack/RTC Battery	246
4.16 Battery Latch	249
4.17 Battery Lock	251
4.18 Touch Pad	253
4.19 LCD Unit/FL Inverter	255
4.20 Latch Assembly	261
4.21 Wireless LAN Antenna/Speaker/Hinge	262
Appendices	271
Appendix A Handling the LCD Module	279
Appendix B Board Layout	285
Appendix C Pin Assignment	291
Appendix D Keyboard Scan/Character Codes	323
Appendix E Key Layout	331
Appendix F Wiring Diagrams	333
Appendix G BIOS/KBC/EC Update	335