IBM Aptiva 2174 Hardware Maintenance Service page 77

Table 2-3 Error Symptoms List
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.
Error Symptoms
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
(Continued)
See "Factory-Installed Modem Card" on page 52.
Ensure that the modem voice-in cable from modem
adapter card to system board either one to connecte
properly. See "Machine Type 2174 System Board
Jumpers and Connectors" on page 107 and
"Factory-Installed Modem Card" on page 52.
Ensure the "Modem Wake-Up on Ring" in BIOS
Setup is set to [Disabled]. "Power Management
Support" on page 18.
If PCI modem card is used, reinsert the modem card
to PCI slot firmly or replace modem card.
"Machine Type 2174 System Board Jumpers and
Connectors" on page 107.
In Win 98 ensure that telephone application is
configured correctly for your modem and set to
receive messages and/or fax.
Video and Monitor
Remove all non factory-installed cards.
Load default settings (if screen is readable).
System board
Monitor signal connection/cable.
Monitor
Video adapter card
System board
Action/FRU
Check Procedures 45