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