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2 Troubleshooting
2.3 Power Supply
Procedure 2 Connection Check
Power is supplied to the system board as illustrated below:
AC
adaptor
System board
AC power cord
AC adaptor cord
Battery pack
Follow the steps below to check whether each connector has been connected correctly:
Check 1
Make sure the AC adaptor and AC power cord have been firmly plugged
into the DC IN 19V socket and wall outlet, respectively. When they have
been connected correctly, perform Check 2.
Check 2
Connect a new AC adaptor and AC power cord.
•
If the DC IN LED does not go on, go to Procedure 3.
•
If the battery LED does not go on, perform Check 3.
Check 3
Make sure the battery pack has been correctly installed in the computer.
If the battery LED does not go on while the battery pack has been installed
correctly, go to Procedure 3.
Procedure 3 Replacement Check
The system board, power supply board, or CPU may be faulty. Disassemble the computer
according to Chapter 4 and follow the steps below:
Check 1
Replace the power supply board with a new one. If the battery pack is still
not working properly, perform Check 2.
Check 2
Replace the system board with a new one. If the battery pack is still not
working properly, perform Check 3.
Check 3
Replace the CPU with a new one.
2-8
EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual
Содержание Satellite L20
Страница 12: ...Chapter 0 12 Satellite L20 Maintenance Manual 960 Q01 ...
Страница 13: ...Satellite L20 Maintenance Manual 960 Q01 1 i Chapter 1 Hardware Overview ...
Страница 14: ...1 ii Satellite L20 Maintenance Manual 960 Q01 1 Hardware Overview ...
Страница 18: ...Chatper 1 Hardware Overview 2 Satellite L20 Maintenance Manual 960 Q01 USB FDD supports 720KB and 1 44MB ...
Страница 41: ...Chapter 1 Hardware Overview Satellite L20 Maintenance Manual 960 Q01 25 ...
Страница 44: ...Chatper 1 Hardware Overview 28 Satellite L20 Maintenance Manual 960 Q01 ...
Страница 52: ...2 Troubleshooting 2 i EQUIUM M40 M45 Satellite M40 M45 Maintenance Manual 2 Chapter 2 Troubleshooting ...
Страница 79: ...2 Troubleshooting 2 14 Cooling Module 2 24 EQUIUM M40 M45 Satellite M40 M45 Maintenance Manual ...
Страница 80: ...Test Program for Field 80 Satellite L20 Maintenance Manual 960 Q01 Chapter 3 Diagnostic Programs ...
Страница 144: ...Satellite L20 Maintenance Manual 960 Q01 4 i Chapter 4 Replacement Procedures ...
Страница 145: ...Replacement Procedures 4 ii Satellite L20 Maintenance Manual 960 Q01 4 ...
Страница 167: ...Replacement Procedures Figure 4 6 Removing a memory module Satellite L20 Maintenance Manual 960 Q01 163 ...
Страница 178: ...Replacement Procedures 174 Satellite L20 Maintenance Manual 960 Q01 M2 5 6 0B FLAT BIND screw x1 ...
Страница 202: ...Satellite L20 Maintenance Manual 960 Q01 App i Appendices ...
Страница 203: ...App ii Satellite L20 Maintenance Manual 960 Q01 ...
Страница 213: ...Handling the LCD Module A 6 Satellite L20 Maintenance Manual 960 Q01 ...
Страница 262: ...Wiring Diagrams F 2 Satellite L20 Maintenance Manua 960 Q01 ...