Search found 5 matches

by parthabose
Tue Apr 10, 2018 12:49 pm
Forum: Laptop Case Studies
Topic: Dell ins N4050 (LA-10315-1) graphics convertion
Replies: 0
Views: 1453

Dell ins N4050 (LA-10315-1) graphics convertion

I checked dell ins n4050 as it was showing blue screen while booting to windows.
Error was " ATI....." file corrupted. That means graphics chip ATI faulty.
We tried to convert by removing coil PL9201 & IC PU9303 below fan connector.
It worked fine with Intel HD 3000 graphics.
by parthabose
Tue Apr 10, 2018 12:36 pm
Forum: Laptop Case Studies
Topic: Dell ins 15-3521 no display(300mA in DC supply)
Replies: 0
Views: 1399

Dell ins 15-3521 no display(300mA in DC supply)

I checked dell ins 15-3521(LA-9104p) as it was turning on but no display was present. With RAM installed, DC supply was showing 300mA only. Battery port volt was ok. BIOS volt was ok. RAM volt was .75v, Vcore of processor was missing. Then I changed RAM power IC 5616A(PU300) & DC supply was then...
by parthabose
Tue Apr 10, 2018 12:21 pm
Forum: Laptop Case Studies
Topic: Acer emachine e525 on problem
Replies: 0
Views: 1208

Acer emachine e525 on problem

I checked Acer e525 as it was charging but not turning on. Battery port was with 3.3v & on switch had
also 15v.BIOS pin 1 had .35v, 8 pin had 1.5v. Then i changed IO chip ene 926qf-c0. BIOS volt became ok.
System got ok.
by parthabose
Wed Apr 04, 2018 12:42 pm
Forum: Laptop Case Studies
Topic: LENOVO G580 DEAD, A-7982P
Replies: 0
Views: 1339

LENOVO G580 DEAD, A-7982P

I CHECKED LENOVO G580 AS IT WAS DEAD. NO CHARGING LED WAS GLOWING WHEN ADAPTER CONNECTED.3.3V & 5V AT SMPS COIL WAS MISSING. BATTERY PORT VOLTAGES WERE MISSING. 19V WAS PRESENT AT ALL REQUIRED PLACES.NO SHORT. CHANGED FIRST PWM MAIN IC, THEN CHARGING IC. BUT NOT SOLVED. PWM IC NO EM=ED. THEN I H...
by parthabose
Wed Apr 04, 2018 12:30 pm
Forum: Laptop Case Studies
Topic: Dell INSPIRON 1564, DOES NOT TURN ON PROPERLY.
Replies: 0
Views: 1267

Dell INSPIRON 1564, DOES NOT TURN ON PROPERLY.

I CHECKED AS IT WAS TAKING POWER & CHARGE LED GLOW ONCE.IT IS NORMAL. THEN IF I PRESS ON BUTTON, ON LED GLOW ONCE FOR 2 SECOND & GOES OFF. BATTERY PORT VOLTAGES WERE OK, NO ICS WERE NEITHER SHORT NOT OVER HEATING. I HAD CHANGED PROCESSOR, RAM. BUT IT WAS MOTHER BOARD FAULT. DC SUPPLY WAS SHO...

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