• HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Danes je 30 Januar 2026, 09:38

HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

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#1 HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 12 Januar 2026, 20:35
Ciao, ragazzi ho questo pc HP Spectre X360 che non accende, non si accende nemmeno il led bianco del connettore DC+, come prima diagnosi manca la tensione +3V_VSTBY sul KBC, sospetto che sia il bq24715rgrr.

TENSIONI PRESENTI:
ACDET: 2.7 v.
ACN: 19 v.
ACP 19 v.
VCC 19 v.
REGN: 6 v.
ACOK: 3.3 v.
ACDRV: 20 v.
CMSRC: 17.7 v.
HIDRV: mancante.

Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a Google Adsense [BOT] • 12 Januar 2026, 20:35

#2 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a matic • 13 Januar 2026, 11:05
Hello!

- Measure the voltages to ground on pins 1, 4, 5 of transistors PQ1, PQ8.
- Measure the voltage to ground on any pin of resistor PR177.

#3 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 13 Januar 2026, 22:04
matic napisal/-a:Measure the voltages to ground on pins 1, 4, 5 of transistors PQ1, PQ8.


ho risolto, sostituendo il mosfet PQ8 adesso il pc funziona, ho un'altro piccolo problema non ha audio, simbolo rosso e in gestione "realtek hw audio codec driver error 10", può essere il chip ALC3242?.

#4 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a matic • 14 Januar 2026, 08:08
Possible.
Measure the voltages to ground on pins 7, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 29, 31, 38, 43, 44, 45, 50 of audio codec chip ALC3242.

#5 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 15 Januar 2026, 19:55
matic napisal/-a:7, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 29, 31, 38, 43, 44, 45, 50


7: 3.3 V.
11: 3.3V.
12: 3.3 V.
13: 0 V.
14: 0 V.
15: 0 V.
16: 0 V.
17: 0 V.
18: 1.24 V.
19: 3.3 V.
21: 07 MV.
22: 1.47 V.
23: 1.8 V.
24: 1.8 V.
29: 1.8 V.
31: 0 V.
38: 4.3 V.
43: 2.15 V.
44: 5 V.
45: 5 V.
50: 5 V.

#6 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a matic • 15 Januar 2026, 20:52
- Measure the resistances to ground on pins 21, 31 of audio codec chip ALC3242.

- Set your multimeter to the diode test mode and measure the voltage drops to ground on pins 13, 14, 15, 16, 17 of audio codec chip ALC3242 with the positive (red) probe connected to ground.

#7 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 16 Januar 2026, 13:12
matic napisal/-a:21, 31


21: 38 KΩ.
31: 345 KΩ.

DIODO:
13: 0.450 V.
14: 0.450 V.
15: 0.450 V.
16: 0.440 V.
17: 0.450 V.

#8 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 26 Januar 2026, 21:33
sostituito il chip ALC3242, senza soluzione continuo a non avere audio, suggerimenti?.

#9 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a matic • 27 Januar 2026, 08:51
Remeasure the voltages to ground on pins 13, 14, 15, 16, 17 of audio codec chip ALC3242.

#10 Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a leonemax81 • 27 Januar 2026, 09:37
matic napisal/-a:Remeasure the voltages to ground on pins 13, 14, 15, 16, 17 of audio codec chip ALC3242.


13: 0 V.
14: 2.7 V.
15: 1.26 V.
16: 0 V.
17: 0 V.

Re: HP Spectre X360 no power no led dc+ da0y0dmbaf0 rev f

Napisal/-a Google Adsense [BOT] • 27 Januar 2026, 09:37
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