Hi Everyone,
I have brought to you a strange problem display maybe you have some ideas how it can be fixed or what could cause such a problem.
Display Type: B173ZAN01.1
MANUFACTURER: AU Optrinics
H/W:0A F/W:1
Changed the cable and tried to bend, push the back f the screen and both problem persists, nothing changes.
There is no any sign that the back of the screen was under pressure, or has moving cables.
PROBLEM 1:. Red spots / area in the screen
MORE INFO: If i gently press above the problematic area then it disappears until...
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HP Omen LED 4k display strange red areas and half a line of scratch like
Last edited by questore; 04-10-2024, 12:28 PM.
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try asking someone who has the same board like this threads owner here:
[URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/84170-np-r522-ba41-01062a-bios[/URL]https://try asking someone who has t...62a-bios[/URL]
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After digging trough the MP2949A datasheet on page 15 i found that PMBus voltage is set by a resistor that gives voltage from VDD18 to ADDR_P.
The default address is 20h and that means 0 voltage. (I'm guessing someone knocked off the resisitor accidentally.)
[B]QUESTION :[/B]
What Votlage should I set the ADDR_P to? (I can experiment with different resistor values to get the exact value from VDD18)
ANYONE??After digging trough the MP2949A datasheet on page 15 i found that PMBus voltage is set by a resistor that gives voltage from VDD18 to ADDR_P.
The
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[B]SOLUTION:[/B]
After eliminating every hardware issue i decided to not change any mosfet since they not produce error on heavy load if nvidia is turned on after windows already started.
I have cleaned the BIOS ME region with the official HP BIOS upgrading software. and then booted windows 10 install usb in UEFI mode.
After the windows installer is installed windows without a problem and I have booted in UEFI from SSD also i knew that the problem is solved.
No errors or blue screens eversince.[B]SOLUTION:[/B]
After eliminating every hardware issue i decided to not
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Re: HP OMEN-X 17T-AP000 not turning on
MP2949A Controller voltages after power button press:
1-12 CS: 1,2v
13-23...not measured since the PWM-s are still in tri-state
24 IREF: 1,2v
25 ADDR_P: 0v
26 VDD18: 1,81v
27 SCLK: 1,02v
28 SDIO: 1,02v
29 ALT#: 126mv-> 1,02v
30 VRRDY: 3,37v
31 VRHOT#: 1v
32 SDA_P: 3,36v
33 SCL_P: 3,36v
34 STB: 3,28v
35 SLP_S0#: 3,36v
36 PE: 0v
37 EN: 3,28v
38-43: 1.41V
44 VDD33: 3,29v
45 TEMP: 213mv
46 PSYS:...
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Re: HP OMEN-X 17T-AP000 not turning on
Looking closer on the board on MP2949A i have noticed that on ADDR_P pin there is two missing resistor. These two controls the PMBus addressing and the default is a 0Ohm resistor to ground, and no stuf on the 1.8v line, but as i see pictures of the motherboard on the internet, they both present. There is a table for the values but what values should i use for the correct address?
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Re: HP OMEN-X 17T-AP000 not turning on
Can Anyone help me where to go next?
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Re: HP OMEN-X 17T-AP000 not turning on
Where to check next? Where is VCC_SA? Should I post pictures of the board 2 side?
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Re: HP OMEN-X 17T-AP000 not turning on
Where should I check VCC_SA? no schematic or boardview.
CPU PWM manager is an MP2949A
([URL="https://docplayer.net/150666480-Mp2949a-tri-loop-digital-multi-phase-controller-with-pmbus-interface-for-imvp8-9.html"]MP2949A datasheet[/URL]) Re: HP OMEN-X 17T-AP000 not turning on
Where should I check VCC_SA? no schematic or boardview.
CPU PWM manager is an MP2949A
([URL="https://docplayer.net/150666480-Mp2949a-tri-loop-digital-multi-phase-controller-with-pmbus-interface-for-imvp8-9.html"]MP2949A...
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Re: HP OMEN-X 17T-AP000 not turning on
Checked CPU PWM mosfets, there is 3 type of it (someone changed it multiple times maybe) marked TYPES on the top:
PMHE86903917c
PMKP86903112C
MPGP86901733B
Top view schematic and layout from this forum:
thread was:
[URL="https://www.badcaps.net/forum/showthread.php?p=1063196"]https://www.badcaps.net/forum/showthread.php?p=1063196[/URL]
All Mosfet gets:
+ 1.45V on the PWM pin (ON PWR BUTN PRESS)
+ 3.3V on VCC pin (ON PWR BUTN PRESS)
+ 20v on VIN...
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Re: HP OMEN-X 17T-AP000 not turning on
I would agree if i would search for the power up sequence. But the values above are present as soon as i plug the charger. No power buttom pressed yet.
Also when i press power button, no voltages on CPU so you are right on that one....
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Re: HP OMEN-X 17T-AP000 not turning on
I'm still just collecting informations, so please correct me if I'm wrong, but since alll GPU coils are driven by individual gates, and all of them have 0.37v on the coil and on all high side gates , thats shouts for a problem elsewere so I thought maybe the driver chip is the one to blame. So after searching a while i found a Up9511P Datasheet:
[url]https://pdf1.alldatasheet.com/datasheet-pdf/view/1222413/UPI/UP9511P.html[/url]
After poking the pins I found that Ref voltages and 5VCC are present, but Enable and PGOOD are 0v and...Last edited by questore; 10-05-2023, 09:34 AM.
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Re: HP OMEN-X 17T-AP000 not turning on
When Plugged in the following voltages are present on coils:
3.3v and 5V
When power button pressed, one more 3.3v, 1.0v and a 1.25v is present on more coils.
- I found that as soon as I plug in the charger (no button pressed), the GPU coils has 0.3V. Is that normal?
G1 is 0.3v on the mosfet.
GPU Mosfets are:
E6930 dual mosfets
[url]https://datasheetspdf.com/pdf-file/1086064/Alpha&OmegaSemiconductors/AOE6930/1[/url]
If i understand N channel mosfets datasheet right then G1-D2=0.3V-20.1V...Last edited by questore; 09-25-2023, 07:19 AM.
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Re: HP OMEN-X 17T-AP000 DA0G3CMBCH0 Rev H
I dont know how I have missed it, if was full of flux so someone has been playing with it. Here it is: [ATTACH]312404[/ATTACH]...
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Re: HP OMEN-X 17T-AP000 DA0G3CMBCH0 Rev H
Found it, but I have to modify my ch341A beause it is a 1.8V 25Q40EWNIG.
Be back when i have the bios content....
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Re: HP OMEN-X 17T-AP000 DA0G3CMBCH0 Rev H
CT: PGWTL018J9300O
Modell: G3C-N17E-G2
HP SA: L03430-601
PN: 10MB8ZZ014B
940622-601
31G3CMB00F0 VER: H3B
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Re: HP OMEN-X 17T-AP000 DA0G3CMBCH0 Rev H
CT: PGWTL018J9300O
Modell: G3C-N17E-G2
HP SA: L03430-601
PN: 10MB8ZZ014B
940622-601
31G3CMB00F0 VER: H3B
The BIOS extracted only has a file size of 1Mb
Attached the file [ATTACH]312025[/ATTACH]...Last edited by questore; 09-21-2023, 09:46 AM.
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Re: HP OMEN-X 17T-AP000 not turning on
I think I have to by a new multimeter that is more accurate and can show resistance until decimal characters of 3....
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