Battery Status Lights - Dell Precision 7730 Service Manual
Hide thumbs
Also See for Precision 7730:
- Technical manualbook (47 pages) ,
- Service manual (125 pages) ,
- Installation manual (21 pages)
Table of Contents
Advertisement
NOTE:
The diagnostic pattern will consist of a two digit number being represented by a first group of LED blinks (1 through 9) in
amber, followed by a 1.5 second pause with the LED off, and then a second group of LED blinks (1 through 9) in white. This is
then followed by a three second pause, with the LED off, before repeating over again. Each LED blink takes 0.5 seconds.
The system will not shutdown when displaying the Diagnostic Error Codes. Diagnostic Error Codes will always supersede any other use of
the LED. For instance, on Notebooks, battery codes for Low Battery or Battery Failure situations will not be displayed when Diagnostic
Error Codes are being displayed:
Table 3. LED pattern
Blinking pattern
Problem Description
Amber White
2
1
processor
2
2
system board, BIOS ROM
2
3
memory
2
4
memory
2
5
memory
2
6
system board; chipset
2
7
display
3
1
RTC power failure
3
2
PCI/Video
3
3
BIOS recovery 1
3
4
BIOS recovery 2
Battery status lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
Alternately blinking
An unauthenticated or unsupported non-Dell AC adapter is attached to your laptop. Re-plug battery connector,
amber light and
replace battery if the issue reoccurs.
white light
Alternately blinking
Temporary battery failure with AC adapter present. Re-plug battery connector, replace battery if the issue
amber light with
reoccurs.
steady white light
Constantly blinking
Fatal battery failure with AC adapter present. Fetal battery, replace the battery.
amber light
Light off
Battery in full charge mode with AC adapter present.
White light on
Battery in charge mode with AC adapter present.
Suggested Resolution
processor failure
system board, covers BIOS corruption or ROM error
no memory/no RAM detected
memory failure/RAM failure
invalid memory installed
system board/ chipset error
display failure
coin-cell battery failure
PCI/Video card/chip failure
recovery image nor found
recovery image found but invalid
Troubleshooting
105
Advertisement
Table of Contents
