Dell XPS 15 9575 2-in-1 XPS 15 2-in-1 Service Manual - Page 66

System diagnostic lights, Flea power release

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8. If there are any issues, error codes are displayed. Note the error code and validation number and contact Dell. System diagnostic lights Power and battery-status light Indicates the power and battery-charge status. Solid white-Power adapter is connected and the battery has more than 5 percent charge. Solid amber-Computer is running on battery and the battery has less than 5 percent charge. Off • Power adapter is connected and the battery is fully charged. • Computer is running on battery and the battery has more than 5 percent charge. • Computer is in sleep state, hibernation, or turned off. The power and battery-status light blinks amber along with beep codes indicating failures. For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected. The following table shows different power and battery-status light patterns and associated problems. Table 15. Diagnostics Light pattern 2,1 2,2 2,3 2,4 2,5 2,6 2,7 3,1 3,2 3,3 3,4 4,1 Problem description CPU failure System board: BIOS and ROM failure No memory or RAM detected Memory or RAM failure Invalid memory installed System board or chipset error LCD failure CMOS battery failure PCI or video card or chip failure Recovery image not found Recovery image found but invalid AC adapter connected but battery switch is OFF Camera status light: Indicates whether the camera is in use. • Solid white-Camera is in use. • Off-Camera is not in use. Caps Lock status light: Indicates whether Caps Lock is enabled or disabled. • Solid white-Caps Lock enabled. • Off-Caps Lock disabled. Flea power release Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been removed. The following procedure provides the instructions on how to conduct flea power release: 1. Turn off your computer. 2. Remove the base cover. 3. Press and hold the power button for 15 seconds to drain the flea power. 4. Replace the base cover. 66 Troubleshooting

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8.
If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
System diagnostic lights
Power and battery-status light
Indicates the power and battery-charge status.
Solid white
—Power adapter is connected and the battery has more than 5 percent charge.
Solid amber
—Computer is running on battery and the battery has less than 5 percent charge.
Off
•
Power adapter is connected and the battery is fully charged.
•
Computer is running on battery and the battery has more than 5 percent charge.
•
Computer is in sleep state, hibernation, or turned off.
The power and battery-status light blinks amber along with beep codes indicating failures.
For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by
a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and associated problems.
Table 15. Diagnostics
Light pattern
Problem description
2,1
CPU failure
2,2
System board: BIOS and ROM failure
2,3
No memory or RAM detected
2,4
Memory or RAM failure
2,5
Invalid memory installed
2,6
System board or chipset error
2,7
LCD failure
3,1
CMOS battery failure
3,2
PCI or video card or chip failure
3,3
Recovery image not found
3,4
Recovery image found but invalid
4,1
AC adapter connected but battery switch is OFF
Camera status light:
Indicates whether the camera is in use.
•
Solid white—Camera is in use.
•
Off—Camera is not in use.
Caps Lock status light:
Indicates whether Caps Lock is enabled or disabled.
•
Solid white—Caps Lock enabled.
•
Off—Caps Lock disabled.
Flea power release
Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been
removed. The following procedure provides the instructions on how to conduct flea power release:
1.
Turn off your computer.
2.
Remove the
base cover
.
3.
Press and hold the power button for 15 seconds to drain the flea power.
4.
Replace the
base cover
.
66
Troubleshooting