Chapter 4
90
This chapter provides instructions on how to troubleshoot system hardware problems.
Hardware Diagnostic Procedure
IMPORTANT:
The diagnostic tests described in this chapter are only intended to test Acer products. Non-
Acerproducts, prototype cards, or modified options can give false errors and invalid
systemresponses.
1.
Obtain the failing symptoms in as much detail as possible.
2.
Verify the symptoms by attempting to recreate the failure by running the diagnostic tests or repeating
thesame operation.
3.
Refer to “Power System check” on page 91 and “Beep Codes” on page 92 to determine which corrective
action to perform.
System Troubleshooting
Chapter 4
Summary of Contents for Aspire M3420
Page 1: ...Acer Aspire M3420 Service Guide SG V1 00 PRINTED IN TAIWAN ...
Page 13: ...Chapter 1 5 Block Diagram ...
Page 59: ...Chapter 3 51 3 Lift the board from the chassis 4 Punching in IO Shield then you can remove it ...
Page 63: ...Chapter 3 55 5 Pull the power switch and LED cable from chassis hole ...
Page 75: ...Chapter 3 67 Reinstalling the I O Shielding 1 Install I O shielding into chassis ...
Page 105: ...97 Chapter 4 b Select Proceed with flash update and Press Enter ...
Page 107: ...Chapter 5 99 M B Placement Jumper and Connector Information Chapter 5 ...