Dell Vostro 15 7510, Руководство по обслуживанию

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The following table shows different power and battery-status light patterns and associated problems.
Blinking
Pattern
Problem description Suggested resolution
1 1 TPM detection failure Replace the system board.
1 2 Unrecoverable SPI flash failure Replace the system board.
1 3 Short in hinge cable tripped OCP1 Check if the display cable (EDP) is seated properly or pinched at the
hinges. If problem persists, replace either display cable (EDP) or display
assembly (LCD).
1 4 Short in hinge cable tripped OCP2 Check if the display cable (EDP) is seated properly or pinched at the
hinges. If problem persists, replace either display cable (EDP) or display
assembly (LCD)
1 5 EC unable to program i-Fuse Replace the system board.
1 6 Generic catch-all for ungraceful EC
code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power
by pressing & holding down power button.
2 1 Processor failure Run the Intel CPU diagnostics tools. If problem persists, replace the
system board.
2 2 System Board failure (included BIOS
corruption or ROM error) Flash latest BIOS version. If problem persists, replace the system board.
2 3 No Memory / RAM detected Confirm that the memory module is installed properly. If problem
persists, replace the memory module.
2 4 Memory / RAM failure Reset and swap memory modules amongst the slots. If problem persists,
replace the memory module.
2 5 Invalid memory installed Reset and swap memory modules amongst the slots. If problem persists,
replace the memory module.
2 6 System board / Chipset Error Replace the system board.
2 7 LCD failure (SBIOS message) Replace the LCD module.
2 8 LCD failure (EC detection of power rail
failure) Replace the system board.
3 1 CMOS battery failure Reset the CMOS battery connection. If problem persists, replace the
RTC battery.
3 2 PCI or Video card/chip failure Replace the system board.
3 3 BIOS recovery image not found Flash latest BIOS version. If problem persists, replace the system board.
3 4 BIOS recovery image found but invalid Flash latest BIOS version. If problem persists, replace the system board.
3 5 Power rail failure Replace the system board.
3 6 Flash corruption detected by SBIOS. Replace the system board.
3 7 Timeout waiting on ME to reply to
HECI message. Replace the system board.
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.
82 Troubleshooting