Diagnostic Leds - Dell Latitude 5300 2-in-1 Chrome Service Manual

LCD BIST-testi käivitamine
1. Lülitage Delli sülearvuti välja.
2. Eemaldage arvutiga ühendatud välisseadmed. Ühendage sülearvutiga ainult vahelduvvooluadapter (laadija).
3. Veenduge, et LCD (ekraan) oleks puhas (ekraani pinnal ei ole tolmuosakesi).
4. LCD sisseehitatud enesetesti (BIST) režiimi sisenemiseks hoidke alla nuppu D ja lülitage sülearvuti sisse. Hoidke D-klahvi all seni, kuni
LCD-ekraanile ilmuvad värviribad.
5. Ekraanil kuvatakse mitu värviriba ja kogu ekraan muutub punaseks, roheliseks ja siniseks.
6. Kontrollige hoolikalt ekraani kõrvalekaldeid.
7. Väljumiseks vajutage klahvi Esc.
MÄRKUS: Dell ePSA käivitab käivitamisel esmalt LCD BIST-testi, eeldades, et kasutaja sekkumine kinnitab LCD
toimimise.

Diagnostic LEDs

Instead of beep codes, errors are indicated via the bicolor Battery Charge/Status LED. A specific blink pattern is followed by flashing a
pattern of flashes in amber, followed by white. The pattern then repeats.
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 1.5 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 laptops, battery codes for Low Battery or Battery
Failure situations will not be displayed when Diagnostic Error Codes are being displayed.
Table 13. Diagnostic LEDs
Blinking Problem Description
Pattern
Amber White
2 1 CPU failure
2 2 System board failure (included BIOS corruption or ROM error)
2 3 No memory/RAM detected
2 4 Memory/RAM failure
2 5 Invalid memory installed
2 6 System board/Chipset error
2 7 LCD failure
2 8 LCD Power rail failure
3 1 CMOS battery failure
3 2 PCI or Video card/chip failure
3 3 BIOS Recovery Image not found
3 4 BIOS Recovery Image found but invalid
For diagnostics pattern 2-amber, 8-white connect an external monitor to isolate between system board or graphics controller failure.
108 Tõrkeotsing
Suggested Resolution
Replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.
Confirm that the memory module is installed
properly. If problem persists, replace the
memory module.
Replace the memory module.
Replace the memory module.
Replace the system board.
Replace the LCD module.
Replace the system board.
Replace the RTS battery.
Replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.
Flash latest BIOS version. If problem persists,
replace the system board.