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Troubleshooting Symptom Charts/Video - 10
Display stopped
working or dimmed
but is fine now
1 PowerBook 190 Series, 5300/100, 5300cs/100: If
temperature is under 0° C or over 50° C, this reaction is
normal. Let screen warm up for 30 minutes. If symptom
persists, replace display.
2 PowerBook 5300c/100 and 5300ce/117: replace display.
Backlight doesn't
operate
1 Adjust screen contrast and brightness settings.
2 Verify that backlight cable connection is secure.
3 Check cable, inverter board, and logic board connections.
4 Verify that cables are not pinched or severed.
5 Replace inverter board.
6 Replace display.
7 Replace logic board.