x68000:soft_power_switch_troubleshooting_and_repair
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x68000:soft_power_switch_troubleshooting_and_repair [2012/11/21 00:11] – eidis | x68000:soft_power_switch_troubleshooting_and_repair [2012/11/21 00:13] – eidis | ||
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===== Soft-power troubleshooting and repair ===== | ===== Soft-power troubleshooting and repair ===== | ||
- | The following information is kind contribution by our forum members **Lydux** and **Caius** and this fix was applied to X68000 | + | The following information is kind contribution by our forum members **Lydux** and **Caius** and this fix was applied to X68000 SUPER and Expert HD. |
**The symptoms:** X68000 powers on fine, but does not shut down when the soft-power button is pressed. The screen fades, Power LED does not change from Green to Red and the PSU fan keeps spinning. The same happens with a regular ATX PSU. | **The symptoms:** X68000 powers on fine, but does not shut down when the soft-power button is pressed. The screen fades, Power LED does not change from Green to Red and the PSU fan keeps spinning. The same happens with a regular ATX PSU. | ||
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*Via the soft-sequence signal from the system controller (/MPWOFF) | *Via the soft-sequence signal from the system controller (/MPWOFF) | ||
- | In normal operation, all these 4 signals must go logic High (+5v) to get a system shutdown. | + | In normal operation, all these 4 signals must go to logic High (+5v) to get a system shutdown. |
The problem might be due to a signal that is always stuck Low. | The problem might be due to a signal that is always stuck Low. | ||
x68000/soft_power_switch_troubleshooting_and_repair.txt · Last modified: 2019/08/27 20:45 by 127.0.0.1