DV15 MLK MB Schematics needed

[salawayon]

The problem with this unit it's totally dead. No lights at all.

3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
Switch voltage: 3.1vdc

When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

Thanks....

[spidey]

Re: DV15 MLK MB Schematics needed

first flash bios, then check EC.

[sorinac]

Re: DV15 MLK MB Schematics needed

try this
https://www.badcaps.net/forum/showthread.php?t=34711

[mano115]

Re: DV15 MLK MB Schematics needed

I have the same motherboard with shortcircuit in the coil PL4102 (3.3v) and I think that is the NUVOTON NPCE885 BUT I don't have any schematics. Do you have something to help me through. Sorry for my english and keep this good job
thanks

[JOHNCOOPER]

Re: DV15 MLK MB Schematics needed

dv15 mlk mb schema needed

[JOHNCOOPER]

Re: DV15 MLK MB Schematics needed

dv15 mlk
no schematic
all coil have good volt but on pl4401 have no volt
its a gfx vcccore
anyone know pu4404 ic name if yes plz tellme

[sadakhuno]

Re: DV15 MLK MB Schematics needed

dv15 mlk
no schematic
all coil have good volt but on pl4401 have no volt
its a gfx vcccore
anyone know pu4404 ic name if yes plz tellme

Part for Pu4404 is ISL6208BCRZ! I hope to help

[Th3_uN1Qu3]

Re: DV15 MLK MB Schematics needed

Same board, same issue (no video, no boot). PL4401 no voltage and PU4404 no PWM signal on the PWM Input (checked with oscilloscope).

Flashed BIOS and all is OK. BIOS can be downloaded from Dell's site, then open a command prompt and type in 3520A10.exe /writeromfile and it will spit out the 8MB ROM which you can flash using programmer.

Hope this helps.

[AKR]

Re: DV15 MLK MB Schematics needed

The problem with this unit it's totally dead. No lights at all.

3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
Switch voltage: 3.1vdc

When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

Thanks....

dell inspiron n5110 is same

[AKR]

Re: DV15 MLK MB Schematics needed

The problem with this unit it's totally dead. No lights at all.

3.34vdc and 5vdc is present at PL4102 and PL4101 respectively...
Switch voltage: 3.1vdc

When power switch is being pressed both CPU and GPU doesn't heat up and no supply voltage at both chipset....

Thanks....

check this

http://kythuatphancung.vn/download/d...matics.html?dl

[rhison]

Re: DV15 MLK MB Schematics needed

Hi can i ask about my dell 3520 my battery is good and also the charger but it desktop you can see a no battery is detected?? what probably the problem of that?? i already test on the pin of the battery if there's a 3v yes the laptop haave 3v...

hope you can help me thankyou

[Quietstorm24]

Re: DV15 MLK MB Schematics needed

I had the similar problem with my DV15 MLK MB (Dell inspiron 15 3520). only the battery led was flashing giving an error code.

I have manually reset the BIOS and this helped to fix the issue.

https://www.youtube.com/watch?v=qEx9mq66blA

[sureshbobby]

Re: DV15 MLK MB Schematics needed

Hi Friends i have the same laptop which is powering on but no display. please help me

[teknoelectronica]

Re: DV15 MLK MB Schematics needed

Enjoy Schematic inspiron 3520