Led Indicators And Characteristics; Battery Charge And Status Led; System Diagnostic Lights - Dell J1FD8 Service Manual

LED Indicators and Characteristics

Battery Charge and Status LED

Table 12. Battery Charge and Status LED Indicator
Power Source
AC Adapter
AC Adapter
Battery
Battery
● S0 (ON) - System is turned on.
● S4 (Hibernate) - The system consumes the least power compared to all other sleep states. The system is almost at an OFF
state, expect for a trickle power. The context data is written to hard drive.
● S5 (OFF) - The system is in a shutdown state.

System diagnostic lights

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.
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 13. LED codes
Diagnostic light codes
2,1
2,2
2,3
2,4
2,5
2,6
2,7
2,8
3,1
3,2
3,3
LED Behavior
Off
Solid White
Off
Solid Amber (590+/-3 nm)
Problem description
Processor failure
System board: BIOS or ROM (Read-Only Memory) failure
No memory or RAM (Random-Access Memory) detected
Memory or RAM (Random-Access Memory) failure
Invalid memory installed
System-board or chipset error
Display failure
LCD power rail failure. Replace system board
Coin-cell battery failure
PCI, video card/chip failure
Recovery image not found
System Power State
S0 - S5
S0 - S5
S0 - S5
S0 - S5
Battery Charge Level
Fully Charged
< Fully Charged
11-100%
< 10%
Troubleshooting 133