Acer Aspire T100 Service Manual page 74

Error Symptom
CD/DVD-ROM drive cannot load or eject
when the system is turned on and its
eject button is pressed and held.
CD/DVD-ROM drive does not read and
there are no messages are displayed.
CD/DVD-ROM drive can play audio CD
but no sound output.
Real-time clock is inaccurate.
Audio software program invokes but no
sound comes from speakers.
Modem ring cannot wake up system
from suspend mode.
Data/fax modem software program
invokes but cannot receive/send data/
fax
Fax/voice modem software program
invokes but has no sound output. (Data
files are received normally; voice from
modem cannot be produced, but system
sound feature works normally.)
Video memory test failed.
Video adapter failed.
Chapter 4
1. Disconnect all cables from CD/DVD-ROM drive except
power cable, then press eject button to try to unload the
disk.
2. CD/DVD-ROM drive power.
3. CD/DVD-ROM drive
1. CD may have dirt or foreign material on it. Check with a
known good disc.
2. Ensure the CD/DVD-ROM driver is installed properly.
3. CD/DVD-ROM drive.
1. Ensure the headphone jack of the CD/DVD-ROM has an
output.
2. Turn up the sound volume.
3. Speaker power/connection/cable.
4. CD/DVD-ROM drive.
Real-Time Clock
1. Ensure the information in the Date and Time of BIOS
Setup is set correctly.
2. RTC battery.
3. System board
Audio
1. Speaker power/connection/cable.
Modem
1. Ensure the Modem Ring Indicator in BIOS Setup or
Power Management is set to Enabled.
2. If PCI modem card is used, reinsert the modem card to
PCI slot firmly or replace the modem card.
3. If ISA modem card is used, ensure the modem ring-in
cable from the modem card to system board is connected
properly.
4. In Win 98, ensure the telephone application is configured
correctly for your modem and set to receive messages
and/or fax.
1. Ensure the modem card is installed properly.
1. Ensure the modem voice-in cable from modem adapter
card to system board
Video and Monitor
1. Remove all non-factory-installed cards.
2. Load default settings (if screen is readable).
3. System board
Action/FRU
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