It seems as though the AIO is not even starting the power on sequence after the power button is pressed.
Things to check and try:
Check if there's 20V DC on the output plug of the power adapter for the AIO.
Check that the cable from the power button board is securely connected to the systemboard - see p.71 of the [link|https://download.lenovo.com/consumer/desktop_pub/aio_3_22iap7_24iap7_27iap7_hmm.pdf|hardware maintenance manual] for how to access the power button board.
I realize that your son tried a power refresh which was unsuccessful but sometimes a full power refresh is required to reset the BIOS if it has been corrupted for whatever reason and is causing the AIO not to start.
-
There's is an RTC (Real Time Clock aka cmos) coin cell battery on the systemboard that needs to be removed so this can be done. Unfortunately for you, it is located on the underside of the systemboard so it will have to be removed from the case - see the procedure on p.78 (82 of 90 pdf) of the hardware manual.
+
There's an RTC (Real Time Clock aka cmos) coin cell battery on the systemboard that needs to be removed so this can be done. Unfortunately for you, it is located on the underside of the systemboard so it will have to be removed from the case - see the procedure on p.78 (82 of 90 pdf) of the hardware manual.
Once the battery has been removed from the systemboard, measure its voltage. If it is <2.5V DC replace it. The battery model number is on the battery.
Having the battery out to measure its voltage gives enough time for the BIOS to reset as now there's no power on the board at all.
Reinsert the battery (or its replacement) in its holder on the systemboard (usually +ve on top as marked on the battery) and reassemble the AIO, connect the power and check if it turns on OK.
If it does then there may be a message stating that the date and time are incorrect. This is normal, as the BIOS has been reset. Once the date and time have been corrected the message won't appear the next time the AIO is started.
If it is still no good then there's a problem with the systemboard and the schematics for it would be required to find out what's wrong.
It seems as though the AIO is not even starting after the power button is pressed.
+
It seems as though the AIO is not even starting the power on sequence after the power button is pressed.
Things to check and try:
Check if there's 20V DC on the output plug of the power adapter for the AIO.
-
Check that the cable from the power button board is securely connected to the systemboard - see p.71 of the [https://download.lenovo.com/consumer/desktop_pub/aio_3_22iap7_24iap7_27iap7_hmm.pdf|hardware maintenance manual] for how to access the power button board.
+
Check that the cable from the power button board is securely connected to the systemboard - see p.71 of the [link|https://download.lenovo.com/consumer/desktop_pub/aio_3_22iap7_24iap7_27iap7_hmm.pdf|hardware maintenance manual] for how to access the power button board.
I realize that your son tried a power refresh which was unsuccessful but sometimes a full power refresh is required to reset the BIOS if it has been corrupted for whatever reason and is causing the AIO not to start.
There's is an RTC (Real Time Clock aka cmos) coin cell battery on the systemboard that needs to be removed so this can be done. Unfortunately for you, it is located on the underside of the systemboard so it will have to be removed from the case - see the procedure on p.78 (82 of 90 pdf) of the hardware manual.
Once the battery has been removed from the systemboard, measure its voltage. If it is <2.5V DC replace it. The battery model number is on the battery.
Having the battery out to measure its voltage gives enough time for the BIOS to reset as now there's no power on the board at all.
Reinsert the battery (or its replacement) in its holder on the systemboard (usually +ve on top as marked on the battery) and reassemble the AIO, connect the power and check if it turns on OK.
If it does then there may be a message stating that the date and time are incorrect. This is normal, as the BIOS has been reset. Once the date and time have been corrected the message won't appear the next time the AIO is started.
If it is still no good then there's a problem with the systemboard and the schematics for it would be required to find out what's wrong.
Hi @kbunique
It seems as though the AIO is not even starting after the power button is pressed.
Things to check and try:
Check if there's 20V DC on the output plug of the power adapter for the AIO.
Check that the cable from the power button board is securely connected to the systemboard - see p.71 of the [https://download.lenovo.com/consumer/desktop_pub/aio_3_22iap7_24iap7_27iap7_hmm.pdf|hardware maintenance manual] for how to access the power button board.
I realize that your son tried a power refresh which was unsuccessful but sometimes a full power refresh is required to reset the BIOS if it has been corrupted for whatever reason and is causing the AIO not to start.
There's is an RTC (Real Time Clock aka cmos) coin cell battery on the systemboard that needs to be removed so this can be done. Unfortunately for you, it is located on the underside of the systemboard so it will have to be removed from the case - see the procedure on p.78 (82 of 90 pdf) of the hardware manual.
Once the battery has been removed from the systemboard, measure its voltage. If it is <2.5V DC replace it. The battery model number is on the battery.
Having the battery out to measure its voltage gives enough time for the BIOS to reset as now there's no power on the board at all.
Reinsert the battery (or its replacement) in its holder on the systemboard (usually +ve on top as marked on the battery) and reassemble the AIO, connect the power and check if it turns on OK.
If it does then there may be a message stating that the date and time are incorrect. This is normal, as the BIOS has been reset. Once the date and time have been corrected the message won't appear the next time the AIO is started.
If it is still no good then there's a problem with the systemboard and the schematics for it would be required to find out what's wrong.