• Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu

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 Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 27 April 2022, 10:21
Cześć
Proszę o pomoc w naprawie karty graficznej RTX 2060 1-click OC, karta nie daje w ogóle obrazu.
Wszystkie pomiary jakie zrobiłem zaznaczyłem na zdjęciu.
Image
Image

Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by Google Adsense [BOT] 27 April 2022, 10:21

#2 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 1 May 2022, 18:41
Hello!

Measure the voltage to ground on highlighted pin:
Image

#3 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 2 May 2022, 02:44
Hi Matic

3V

#4 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 2 May 2022, 12:35
Measure the voltages to ground on pins 1, 2, 6, 7, 8, 20, 21, 22, 23 of chip U15.
Chip U15 pin count:
Image

#5 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 4 May 2022, 09:28
(V)
n.6 - 11,8
n.7 - 12
n.8 - 12
n.20 - 4,5
n.21 - 5
n.22 - 12
n.23 - 0

#6 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 4 May 2022, 19:48
matic wrote:Measure the voltages to ground on pins 1, 2, 6, 7, 8, 20, 21, 22, 23 of chip U15.


#7 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 5 May 2022, 08:23
(V)
n.1 - 0
n.2 - 0
n.6 - 11,8
n.7 - 12
n.8 - 12
n.20 - 4,5
n.21 - 5
n.22 - 12
n.23 - 0

#8 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 7 May 2022, 13:15
Please, post a clear picture with visible markings on chip U14.

#9 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 9 May 2022, 08:36
Image
Image
Image

Na wszystkich pinach tego układu 0V
n.1 - 2.2kΩ
n.2 - 2.2kΩ
n.3 - 10kΩ
n.4 - 0.3Ω
n.5 - 4.3kΩ
n.6 - 6kΩ

#10 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 14 May 2022, 14:05
Also post a clear picture with visible markings on chip U4 (it is located near the 5V coil).

#11 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 16 May 2022, 09:00
Image
U4 (V)
n.1 - 2,5
n.2 - 12
n.3 - 5
n.4 - 0
n.5 - 9,5
n.6 - 2,5
n.7 - 4,8
n.8 - 0,8

#12 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 16 May 2022, 22:13
Set your multimeter to the diode test mode. Put the black (negative) probe to pin 2 of chip U15.
Put the red (positive probe) to the listed pins and specify the results:
  • Pin 4 of chip IC1 (see picture below).
  • Pin 4 of chip IC2 (see picture below).
  • Pin 4 of chip U12.
  • Pin 4 of chip U501.
  • Pin 4 of chip U502.
  • Pin 4 of chip U505.
  • Pin 4 of chip U506.
Image

Chips pin count:
Image

#13 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 17 May 2022, 12:09
Pin 4 of chip IC1 -1.95
Pin 4 of chip IC2 -0.186
Pin 4 of chip U12 -OL
Pin 4 of chip U501 -1.76
Pin 4 of chip U502 -1.95
Pin 4 of chip U505 -1.48
Pin 4 of chip U506 -1.46

#14 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 19 May 2022, 14:25
Measure the voltages to ground on all pins of chip IC2.

#15 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 20 May 2022, 16:10
IC2 (V)
n.1 - 2.5
n.2 - 0
n.3 - 0
n.4 - 0
n.5 - 0

IC1
all 0V

#16 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 22 May 2022, 11:36
Measure the voltages to ground on all pins of chips U1 and U502.
Both chips are located near the HDMI port - U1 on the top side and U502 on the bottom side of the board.

#17 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 23 May 2022, 08:32
U1 (V)
n.1 - 0
n.2 - 0
n.3 - 0
n.4 - 0
n.5 - 0.100

U502 (V)
n.1 - 0
n.2 - 0
n.3 - 0
n.4 - 0
n.5 - 5

#18 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 28 May 2022, 15:51
Please, post a clear picture with visible markings on chip U502.

#19 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by lock99 1 June 2022, 10:06
U502 (V)
n.1 - 0
n.2 - 0
n.3 - 0
n.4 - 0
n.5 - 5
Image

#20 Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by matic 1 June 2022, 18:27
- Are you sure the voltage is only on pin 5 of this chip?
- Measure the resistances to ground on all pins of this chip.

Re: Karta graficzna KFA2 RTX 2060 1-click OC - brak obrazu


by Google Adsense [BOT] 1 June 2022, 18:27
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

Who is online

Users browsing this forum: No registered users and 0 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.