4.1 Overview
4 Replacement Procedures
Safety Precautions
Please read the following safety instructions before disassembling the computer and always
follow the instructions while working on the computer.
DANGER:
1. In the case of the battery, always use authentic parts or equivalent parts
approved by Toshiba. Other batteries may have different specifications
that are incompatible with the computer and may result in fire or
explosion.
Due to the risk of alkali fluid leaks, never attempt to heat or disassemble
the battery. Similarly, due to the risk of explosion, never expose the
battery to flame.
2. Some parts including the power supply and FL inverter generate high
voltages. If you need to turn on the power while disassembling the
computer, do not touch any connectors or other components due to the
risk of electric shock. Also, do not disassemble individual parts when
performing routine maintenance.
WARNING:
1. To prevent electric shock, turn off the power unplug the AC adapter from
the power source.
2. As the battery installed to the computer is typically already charged, the
risk of electric shock remains even when the AC adapter is unplugged
from the socket. To prevent electric shock, always take off any metal
jewelry or accessories such as necklaces, bracelets or rings before
working on the computer. Never work with wet or moist hands.
3. Take care not to injury yourself on any edges or corners.
CAUTION
: 1. Confirm that replacement parts have compatible specifications before
replacing on the computer. Never use incorrect parts as these may cause
faults on the computer.
2. To prevent internal damage such as short circuits or burning, do not
allow any screws, paper clips, or other metal objects to fall into the
computer. When removing screws, always replace with the same size
screw. Ensure that all screws are fully tightened. Loose screws may
result in short circuits leading to overheating, smoke or flame.
3. To prevent electric shock, check that you have disconnected all cables
from a part before removing the part.
4. When connecting to the AC power supply, use only an AC adapter and
cable approved by Toshiba.
5. To prevent electric shock, ensure that all replacement parts are
compatible with the computer and that all cables and connectors are
securely connected.
4-2 [CONFIDENTIAL]
QOSMIO G20 Maintenance Manual (960-511)
Summary of Contents for QOSMIO G20 Series
Page 10: ...x CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 11: ...Chapter 1 Hardware Overview CONFIDENTIAL ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 38: ...1 9 AC Adapter 1 Hardware Overview 1 24 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 39: ...Chapter 2 Troubleshooting Procedures CONFIDENTIAL ...
Page 40: ...2 2 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 44: ...2 vi CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 113: ...Chapter 3 Tests and Diagnostics CONFIDENTIAL ...
Page 114: ...3 Tests and Diagnostics 3 3 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 223: ...3 Tests and Diagnostics 3 32 SETUP QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL 3 105 ...
Page 236: ...3 32 SETUP 3 Tests and Diagnostics 3 118 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 237: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Page 238: ...4 Replacement Procedures 4 4 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 331: ...Appendices CONFIDENTIAL ...
Page 332: ...App ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 347: ...Appendix A Handling the LCD Module A 6 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 354: ...Appendix B Board Layout B 4 SD board QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL B 7 ...
Page 412: ...Appendix G BIOS Rewrite Procedures G 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Page 416: ...Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...