Dell Inspiron 3521 With ATI No Display Case studies Ver:1.2

[Dhirendra Gaur]

Description: Dell Insprion 15 3521 Laptop On But no display Ram Replace and other removable part replace but no display change bios chip display coming
Manufacture: Dell
Model: Insprion 15 3521
Motherboard Part No: VAW00 LA-9104P REV-1.0(A00)
Motherboard Schematics: Click Here
Processor Type: I3 INBUILT (SR0N9)
Ram Type: DDR3
Keyboard Controller Type: ENE KB9012QF A3 (Programmable IC)
Firmware: Click here for bios
Problem: No Display
Diagnosis: Bios Chip Faulty
Process:
Dell Laptop Insprion 15 3521 on but no display all removable part remove and ram replace but no display after open system found motherboard VAW00 LA-9104P REV-1.0(A00) With ATI Graphics(AMD 216-083300) . completely checking and found damage near PCH(SLJ8E)After replace cap. Checking voltage and found missing voltage VCC_GFXCORE (PL700) Change PU700 (SL95833HRTZ) but not generating PL700 voltage then Reprogram Bios Chip UH2(2MBSPI Rom)/ UH6 (4MB SPI ROM)/ UE1(128KB I/O Chip) But not coming Voltage then Rebolling / Change UV1(AMD 216-083300) But Same Problem then replace UH6 generate PL700 Voltage . (UH6 is 4MB SPI flash IC) after Program and replace UH6 display coming and laptop work fine

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[javed]

very very nice post ..thanks for give your best time......sir how to use dso upload a post how to use dso and work

[MUNAF VHORA]

Good job sir...

[ Post made via Android ]

[naylinaung]

GREAT POST

[naylinaung]

GREAT POST

[esmat-fadak]

ohooo too many work and good result sir jeee

[ahmedhussain]

Nice Sharing sir

[naylinaung]

nice sir

[esmat-fadak]

good tutorial
but sir how uh6 (main flash bios) relate with pu700

[Dhirendra Gaur]

good tutorial
but sir how uh6 (main flash bios) relate with pu700

found missing voltage VCC_GFXCORE then change PU700 but not coming voltage PL700 then flash uh6