Texas Instruments 51X 3.2.1 , 3.2.2

3.2.1 Button Switches

The notebook contains two button sw itches above the keyboard including:

•Power On/Off Switch - Alternate action, button type switch that

controls power to the unit. Pressing the Power button causes power to

be applied to the notebook and power up self test to be run. The PWR

LED (left rear corner of notebook) glows green and the computer then

loads Windows 95. When the Power button is pressed again, the

Notebook powers down and all data in RAM memory is lost.

•Standby/Suspend Button Switch - an alternate action touch switch

that invokes the save to disk feature a nd places the unit in Standby

Mode (if previously On) or On if previously in Standby Mode.

3.2.2 Cover Release Latch

The Notebook contains one Cover Release latch. To open the note book, slide

the Release Mechanism to the right and lift up on the front edge of the

notebook cover.

Touchpad

Pointing Device

Touchpad

Select Buttons

Power On/Off

Button

Power

LED

Standby/Suspend

Button

Setup Button

Charging

LED

Status

LEDs

Scroll

Lock

Caps

Lock

Num

Lock

Hard Drive

Activity

Sleep

Mode

Figure 3-1 Extensa Series Controls and Indicators

3-2 Operating Instructions

Contents

Main Page Contents Preface 1 General Description 2 Installation 3 Operating Instructions 4 Theory of Operation 5 Troubleshooting Procedures 6 Field Service ASelf Test Error Messages BPC-Doctor Diagnostics Preface Introduction Intended Audience Contents Other Manuals About the System Ordering Parts and Supplies 1 General Description 1.1 1.2 Model 510 Model 515 1.3 Configuration P/N Suffix Configuration P/N Suffix 1.4 Page Figure 1-2 Extensa 51x Series Features 1-4 General Description 1.4.1 1.4.2 1.4.3 n 1.4.3.1 Controls and Indicators ^ 1.4.4 1.4.5 Status LEDs 1.4.6 1.5 1.6 Subassemblies 1.6.1 1.6.2 1.7 Specifications Table 1-3 Extensa 51x Notebook Features Specifications Model 510 Model 515 General Description 1-13 * Weight specifications do not include AC Adapter 1.8 2 Installation 2.1 2.2 n 2.3 c n 2.3.1 Page 2.3.2 2.3.3 2.4 c 2.5 2.5.1 2.5.2 2.5.3 c 2.5.4 2.5.5 2.5.6 2.5.7 2.6 c 2.7 2.8 2.9 2.10 3 Operating Instructions n 3.1 3.2 3.2.1 3.2.2 Status LEDs 3.2.3 3.2.4 3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.3.5 3.3.6 3.3.7 3.3.8 n 4 Theory of Operation 4.1 4.2 4.2.1 MAIN BOARD Figure 4-1 Notebook Functional Block Diagram 4-2 Theory of Operation 4.2.2 4.2.3 4.2.3.1 External VGA Drive Capability c 4.2.4 c 4.2.5 4.2.6 4.2.7 Page Table 4-4 Primary Battery Pack Specifications Function Specifications 4-8 Theory of Operation 5 Troubleshooting Procedures 5.1 5.2 SEE PARAGRAPH 5.3.3 Figure 5-1 Troubleshooting Flowchart 5-2 Troubleshooting 5.3 5.3.1 (EG. a lamp) to verify that voltage is present. If the voltage is OK, try replacing the AC Adapter 5-4 Troubleshooting MAIN BOARD n 5.3.3 5.3.4 5.3.5 5.3.5.1 Interactive Tests Page 5.3.5.3 Creating a Bootable Floppy Diskette n 5.3.5.4 Running PC-Doctor Page 6 Field Service c 6.1 6.2 6.2.1 c 6.2.2 6.2.3 6.2.4 6.3 c 6.4 and Assemblies 6.4.1 Page 6.4.2 Table 6-2 Base Assembly, Field-Replaceable Units (FRUs) FRU Description Page CRU Description c 6.5 c Replacement Procedures 6.5.1 Pack 6.5.2 n c 6.5.3 6.5.4 6.5.5 Assembly 6.5.6 Hard Drive Cover HDD Release Latches 6.5.7 6.5.8 6.5.9 or Contrast Board c 6.5.10 6.5.11 Control Board 6.5.12 Supply Board Assembly 6.5.13 6.5.14 Page A Self Test Error Messages A.1 Error Messages A-1 Error Message Corrective Action Table A-2 POST Checkpoint List A-2 Error Messages Error Messages A-3 A-4 Error Messages Page B PC-Doctor Diagnostics B.1 B.2 B.3 B.4 B.4.1 B.4.2 n B.4.3 B.4.4 B.4.5 B.5 B.6