Acer Aspire 1640 Service Guide
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... computer. LCD cover switch System board See "S4 Sleeping State" on page 28. DIMM System board Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no sound. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard...Symptoms Symptom / Error Battery can't be charged Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. Audio driver Speaker System board Speaker System board Action in Sequence Keyboard (if control is damaged.
... computer. LCD cover switch System board See "S4 Sleeping State" on page 28. DIMM System board Speaker-Related Symptoms Symptom / Error In Windows, multimedia programs, no sound. Battery pack System board PCMCIA-Related Symptoms Symptom / Error System cannot detect the PC Card (PCMCIA) PCMCIA slot pin is from the keyboard...Symptoms Symptom / Error Battery can't be charged Action in Sequence Enter BIOS Setup Utility to execute "Load Default Settings, then reboot system. Audio driver Speaker System board Speaker System board Action in Sequence Keyboard (if control is damaged.