• HP 650 G1 6050A2566301-MB-A03 keyboard not working

It is currently 30 June 2025, 02:45

HP 650 G1 6050A2566301-MB-A03 keyboard not working

 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.
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

#1 HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Amir • 5 November 2023, 17:50
hi to all
HP 650 G1 6050A2566301--MB-A03 keyboard not working(if push a btn several time, it work...with delay )
keyboard & I/O changed same problem.
it work with usb keyboard fine.
please advise me
tnx

Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Google Adsense [BOT] • 5 November 2023, 17:50

#3 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Amir • 6 November 2023, 07:43
tnx muchamm
in this topic keyboard work in bios but in my case keyboard not working nowhere (windows & bios)

#4 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by matic • 6 November 2023, 10:10
Set your multimeter to the diode test mode and measure the voltage drops to ground on all pins of keyboard connector with the positive (red) probe connected to ground.

#5 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Amir • 6 November 2023, 11:58
tnx matic
pin1-4 =0.75
pin 5-13=1.3
pin14-20=0.75
pin21-22=1.3
pin23=0.75
pin24-26=1.3
pin27-29=0.75
pin30= 1.045
pin31=0.271
pin32=1.025
pin33=1.11
pin34 =out of range

#6 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by matic • 6 November 2023, 22:58
Measure the voltages to ground on all pins of keyboard connector, when the machine is turned on with the keyboard connected.

#7 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Amir • 7 November 2023, 18:15
pin1-4=3.3
pin5-13=3.8 (some times 4.2)
pin14-20=3.3
pin21-22=3.8
pin23=3.3
pin24-26=3.7
pin27-33=3.3
34=0

#8 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by matic • 19 November 2023, 21:57
These voltages are not fine.
Reflash the BIOS chip U365. Don't forget to save the old dump.

#9 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by muchamm • 20 November 2023, 08:20
Cześć.
A może to wina samej klawiatury (np. po zalaniu) która dostaje jakiegoś zwarcia. Posiadasz możliwość przetestowania jej na zewnątrz (np. SVOD)?
Pozdrawiam.

#10 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by matic • 20 November 2023, 09:25
muchamm wrote:A może to wina samej klawiatury (np. po zalaniu) która dostaje jakiegoś zwarcia.
Amir wrote:keyboard & I/O changed same problem.


#11 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Amir • 25 November 2023, 16:36
matic wrote:These voltages are not fine.
Reflash the BIOS chip U365. Don't forget to save the old dump.

tnx matic. can you send a link for tested bios?

#12 Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Vogelek23 • 25 November 2023, 17:13
Amir wrote: can you send a link
1. Use SEARCH feature: post192942.html#p192942 or post165594.html#p165594
2. This is the correct subforum for such queries: zapytania-dokumentacje-bios-f113.html

Re: HP 650 G1 6050A2566301-MB-A03 keyboard not working

by Google Adsense [BOT] • 25 November 2023, 17:13
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
Similar Topics
HP Probook 650 G1 na MB:6050A2566401-MB-A03 nie działa na zasilaczu
  HP EB 840 G1 | 6050A2560201-MB-A03 - Brak reakacji na przycisk  [SOLVED]
Microsoft Surface Pro 4, Mobo: X911788-009 - Keyboard Not Working
  HP 14-dw1025ns Keyboard, touchpad and backlight do not respond
Schemat Asus TUF Gaming F15 (2023) FX507VU Inventec FX507-MP-VGT 6050A3437301-MB-A03
EliteBook 1030 g3 (DA0Y0PMBAF0) Letter C typing without any keyboard connected...

Who is online

Users browsing this forum: No registered users and 10 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.