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DELL VOSTRO 14- 3000 SERIES DISPLAY DIMM AFTER 5 SECONDS

MODEL - DELL VOSTRO 3440

JANUS AMD MB 13325-1 ( PWB 1102F REV A00

DISPLAY DIM AFTER POWER ON OF 5 TO 10 SECONDS

DIAGNOSIS:-

CHECKED WITH NEW ONE LCD SAME ISSUE

REPROGRAME THE BIOS SAME ISSUE

CHECKED ALL VOLTAGE OK

IN DC SUPPLY .300AMP CONSUPTION

HEAT IN BGA TO CPU SAME ISSUE

AFTER ALL CHECKED THE LID SWITCH TRANSITOR GET FAULTY.. BECUSE LED ENABLE VOLTAGE MISSING AFTER 5 SEC WHEN POWER ON LAPTOP

LID SWITCH IS HAVE THE FUCTION FOR LED ENABLE VOLATGE

RESOULATION-

REMOVE THIS LID SWITCH TRANSITER AND PUT A JUMPER

NOW DISPLAY OK

Good job
This case study helpfully for me

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Nice work

[ Post made via Android ]

The same case in dell 3421...

[ Post made via Android ]