• ASUS FA507NV-LP023W [brak obrazu na matrycy]

It is currently 29 November 2025, 06:36

ASUS FA507NV-LP023W [brak obrazu na matrycy]

 Forum rules: Click here to view the forum rules

  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
  4. Uploading of any complete schematics, BIOS / firmware files or any other kind of documentation, or linking to 3rd party websites with such files, is STRICTLY PROHIBITED. You can only upload the small portion of documentation or, link to BIOS file on UNVERIFIED BIOS FILES subforum, which simplifies the diagnostics/repair. You are not allowed to upload more then one complete page of instruction/schematic per single topic. The file you upload must not contain any watermarks, "confidential" markings, links or email addresses and cannot be password-protected.
  5. It is only permitted to describe one faulty device per single topic - you should always open a new topic for each subsequent device.
  6. Requesting of the full schematics, BoardView files, BIOS files or any other kind of documentation is NOT ALLOWED in this subforum. If you need to ask for any of these, you should open a new topic in DOCUMENTATION/BIOS REQUEST subforum.

#1 ASUS FA507NV-LP023W [brak obrazu na matrycy]

by lgolebio • 26 October 2025, 12:59
Asus
Model: FA507NV-LP023W
Płyta: DA0NJSMBAD0 REV: D
CPU: AMD Ryzen 7 7735HS
GPU: RTX4060
EC: IT5570VG-256/CX

Objaw:
Płyta uruchamia, się, reaguje na włącznik. Capslock działa, słychać w głośnikach, że system się uruchamia poprawnie. Brak obrazu zarówno na matrycy jak i po HDMI. Na złączu matrycy brakuje sygnału EDP_BRIGHT = 0V. +3VLCD_CON =3.3V, +VIN_BLIGHT=20V.

Pomiary na układzie UMX2:
UMX2
1 - 3.3v
2 - 0v
3 - 0v
4 - 0v
5 - 0v
6 - 0v
7 - 1.8v
8 - 3.2v
9 - 3.2v
10 - 0v
11 - 0v
12 - 3.2v
13 - 0v
14 - 3.3v
15 - 0v
16 - 0v
17 - 0V
18 - 1.14v
19 - 3.2v
20 - 0v

Pomiary na cewkach:
PL5 - 6.8ohm
PL 3, PL2, PL1, PL4 - 3.3ohm
PL700 - 520ohm
PL6101, PL6102, PL6103, PL6201, PL6202, PL6301,PL6000, PL6001- 1ohm
PL6501, PL6500, PL6503 - 29ohm
PL600 - 3,3kohm
PL900 - 322 ohm
PL3001 - 34kohm
pl3000 - mohm
PL4000 - 60kohm i rosnie
PL1000 - 1,5kohm

Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by Google Adsense [BOT] • 26 October 2025, 12:59

#2 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by matic • 27 October 2025, 14:04
Hello!

Check that the voltages are present on all the coils.

#3 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by lgolebio • 29 October 2025, 13:36
PL4000 - 12v
PL1000 - 5v
PL1001 - 3.3v
PL3001 - 0v
PL900 - 1.1v
PL600 - 1.8v
PL5 - 1v
PL3, PL2, PL1, PL4 - 1.45v
PL700 - 0,78v
PL6101, PL6102, PL6103, PL6201, PL6202, PL6301, PL6001 - 0,75v
PL6501, PL6500, PL6503 - 1,25v

#4 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by matic • 29 October 2025, 14:31
Set your multimeter to the diode test mode and measure the voltage drops to ground on pins 2, 3, 4, 5, 6, 10, 13, 15, 16, 17, 20 of chip UMX2 with the internal matrix connected to the board. Measure with the positive (red probe) connected to the ground.

#5 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by lgolebio • 30 October 2025, 16:41
2 - 0,5v
3 -0,5v
4 - 0.5v
5 -0,41v
6- 0,42v
10 - 0,5v
13 - 0,59v
15 - 0,59v
16 - 0,54v
17 - 0,56v
20- 0,59v

Inna matryca lcd również przetestowana i efekt ten sam. Podejrzewam EC, bo to on wysyła sygnał EC_DISPON, jego stan wynosi 0V.

#6 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by matic • 19 November 2025, 12:58
Since neither the internal nor the external monitor is working, the GPU chip may be damaged.
Just in case, try to reflash the BIOS chip first.

#7 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by lgolebio • 19 November 2025, 15:11
Bios reflashed with 3 different Bios. Same story.

#8 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by matic • 19 November 2025, 15:37
- Use an oscilloscope to measure the voltages to ground on pin 1 of resistors VR5168, VR5169 when the machine is turned on.

- Also use an oscilloscope to measure the voltages to ground on pins 1, 2, 5, 6 of VBIOS chip UV3. Take the measurements without the hard drive connected. Just check, if you get any pulses immediately after pressing to the power button. You will need to turn on the machine several times, to take the measurements.

#9 Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by guyandpit • 20 November 2025, 08:07
try to reball the SIO chip, i encountered same issue.

Re: ASUS FA507NV-LP023W [brak obrazu na matrycy]

by Google Adsense [BOT] • 20 November 2025, 08:07
Similar Topics
Asus tuf gaming f15 brak obrazu na matrycy, przez HDMI jest obraz
MSI MS-1758 Brak obrazu na matrycy.
MSI MS-16R6 brak obrazu na matrycy
MSI MS-1781 - brak obrazu na matrycy MS17811
Laptop Lenovo 530-14ARR - brak obrazu na matrycy
Brak obrazu na matrycy / hdmi [ MS-16J91 ver1.0] GL72M 7RDX

Who is online

Users browsing this forum: No registered users and 3 guests

_______________________________
All rights reserved. Unauthorised copying of this website's content or any of its part is strictly forbidden.
Any trademarks, brand names, products or services published on this website belong to their legal owners, are copyrighted and used for information purposes only.