HP ENVY 15-j151nf audio issue

[piernov]

Hi,
Friend's HP ENVY 15-j151nf (Windows 10) seems to have an issue with the audio chip.
After some tens of minutes, the laptop stops outputting any sound from either the internal speakers or audio jack. Apparently the mic stops to work too.
Shutting down the PC for a minute then rebooting solves the problem temporarly, until it appears again a bit earlier.
At first I thought it would be an overheating issue but it happens sometimes when the CPU is at ~50°C too.

Could it be the chip itself only which is overheating? Anyone knows which chip/motherboard is in it and has got a schematics?
Any other idea?

Thanks,

[meritosari]

Re: HP ENVY 15-j151nf audio issue

Quanta SP7???

[meritosari]

Re: HP ENVY 15-j151nf audio issue

Quanta SP7???

[piernov]

Re: HP ENVY 15-j151nf audio issue

Thanks a lot for the schematic, I think it's not this one because the 15-j151nf has an NVidia GPU. The audio part may be the same though. I'll check the PCI id.
Datasheet of the audio codec is available, but there is nothing about shutting down the chip or any sort of protection so I've still no clue.
(the issue shouldn't be with the amplifier since the mic stops working too)

[Th3_uN1Qu3]

Re: HP ENVY 15-j151nf audio issue

I recall the amplifier problem that happens on some Toshiba laptops and that does not seem to be the case with yours. But still, the sound chip could be faulty. Try disabling/enabling in device manager instead of rebooting and see if the sound comes back, that should give some more insight.

[piernov]

Re: HP ENVY 15-j151nf audio issue

Sound doesn't come back after disabling/enabling it. Friend says it may happen when the screen lid is manipulated but I don't think it is related.