Hp-530

[valcon]

Dear all,

i have HP-530 motherboard, shorted power circuit & repaird previously and i need the mosfet no's for PQ3, PQ4, PQ36 & PQ39 or any equivalent for it.

when i pluged to charge the charger go off


thanks

[Nocta]

Re: Hp-530

What's the number of the mosfet? Have you tried looking for equivalents on alldatasheet?

[b700029]

Re: Hp-530

These are in the vcore controller circuit:
PQ36 SI4684DY-T1-E3_SO8
PQ39 SI4684DY-T1-E3_SO8

https://cdn.badcaps-static.com/pdfs/...5f0dc702c5.pdf

These are for main power switching:
PQ3 FDS4435BZ_SO8
PQ4 FDS4435BZ_SO8



From schematic:

[valcon]

Re: Hp-530

Thank you b700029, the motherboard was repaired in the past by other, when i checked it i noticed that the PQ36 & PQ39 replaced with 4474 and 4433 mosfet, the PQ3 & PQ4 soldered and the no's for it not cleared.

Thank you again.

[cpp]

Re: Hp-530

I have the same board for repair,PQ 38,37,40 and 41 shorted,
there are FDS6676AS,

in my board PQ 36 and 39 are AD4684 (not sure for the brand)
and PQ 3 ,4 are AO4433

[luktech]

Re: Hp-530

hi. Mine is a no power fault. I measured the value of the pin 1-4 of q4 to be 18.5v but the output pin 5- 8 is 0.3v. Could it be the cause. If yes can i use the Q4 of other board.

[spidey]

Re: Hp-530

Did you checked the date of last message ?
it is better to make a new thread with more information, your board model, measurements, maybe some photos.

[luktech]

Re: Hp-530

I cant find where to post new thread. Pls how will I.

[spidey]

Re: Hp-530

https://www.badcaps.net/forum/forumdisplay.php?f=23

check upper-left corner there is a new thread button..

[luktech]

Re: Hp-530

thanks.