Specifications

Troubleshooting Symptom Charts/Video - 7
power button is not functioning correctly or damaged, replace
the top case.
12 Replace logic board.
At startup, a dialog
box comes up stating:
“kernel panic” in
Mac OS X or
“Built-in memory
test has detected an
error” in Mac OS 9
1 If a RAM card is installed in the expansion slot, remove it and
restart.
• If symptom repeats, replace logic board.
• If symptom does not repeat, replace RAM card with known-
good RAM card and restart.
2 If no RAM card is installed, replace logic board.
Related article 95136: iBook (Dual USB): Installing or Replacing
Memory
Video
No video on an
external device with
RGB cable adapter
1 If in Mac OS 9, in Resolution Control Strip, verify that
monitor is being recognized. If so, select resolution.
2 If running Mac OS X, verify that this issue is also in Mac OS
9.
3 Verify monitor that is used in testing is known-good and is
supported by this computer.
4 Try known-good RGB adapter.
5 Replace logic board.
No video on an
external device with
Apple A/V cable
1 Make sure you are using an Apple A/V cable.
2 If viewing a DVD, make sure to connect directly to the TV and
not through a VCR.
3 Verify TV is setup properly with correct source.
4 Try different TV.
5 Make sure to connect directly to the TV and not through a VCR.
6 Replace Apple A/V cable.
7 Replace logic board.
The display is rolling
(PAL instead of NTSC)
1 Verify that you are using Apple's A/V Video Cable (the pin out
is different than off-the-shelf cables that look similar).
Refer to Article 88040: Composite Video Cable Not
Interchangeable With Similar Cables, for important
information.
2 If in Mac OS 9, go to Monitors control panel and change the
resolution from a PAL setting to an NTSC setting.
3 Try a different TV.
4 Try a different A/V Cable.
5 Replace logic board.