IBM Aptiva Hardware Maintenance Manual page 75

Table 2- 2 Error Symptoms List
Error Symptoms
NOTE: To diagnose a problem, first find the error symptom in the left
column. If directed to a check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated, the first Action/FRU
listed in right column is the most likely cause.
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.)
Modem ring cannot wake up
system from suspend
mode.
Video memory test failed.
Video adapter failed.
Display problem:
- Incorrect colors
- No high intensity
- Missing, broken, or
incorrect characters
- Blank monitor(dark)
- Blank monitor(bright)
- Distorted image
- Unreadable monitor
- Other monitor problems
2-22
Action/FRU
Modem
"Factory-Installed Modem Card" on page 2-
30.
Ensure that the modem voice-in/speak-out
cable from modem adapter card to system
board CN2 (see "2137 System Board "on
page 5-5) or CN13 (see "2138 System Board
Layout" on page 5-15) is connected properly.
"Factory-Installed Modem Card" on page 2-
30.
Ensure that the "Modem Wake-Up on Ring"
in BIOS Setup is set to [Enabled].
Ensure that the modem ring-in cable from the
modem adapter card to system board CN9 (
see "2137 System Board "on page 5-5) or
CN17 (see "2138 System Board Layout" on
page 5-15) is connected properly.
Video and Monitor
System board
Monitor signal connection/cable.
Monitor
System board