CQ56-130SY USB problem.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • RethoricalCheese
    Badcaps Legend
    • Mar 2013
    • 1517
    • Estonia
    #1

    CQ56-130SY USB problem.

    Bought a laptop that needed a little work - I had to change LCD and keyboard. Ok, those got changed and are working correctly.

    But now I discovered there is a problem with USB.
    When I connect a device, it says the device is not recognized.
    Only device it works with, is my plain old keyboard. None of my mice and USB flash drives are recognized.

    I tried reinstalling drivers, turning the laptop off, removing battery and holding down the power button for a long time. Tried removing the battery (basicly clear CMOS) but none of it fixed the problem.

    Then I took out my USB hub that had an external power source. Wired it up to my laptop and tried it with flash drives - everything worked perfectly.

    So it seems like there is a problem with the power. Does anybody know a fix to this or atleast any idea where could I find a place to "steal" 5V from the motherboard to power USB devices.
    Or what exactly distributes power to USB sockets?

    I tested the voltage - reads out 5.08V which is nearly perfect.
    Tags: None
    • RethoricalCheese
      Badcaps Legend
      • Mar 2013
      • 1517
      • Estonia
      #2
      Re: CQ56-130SY USB problem.

      I found an 8 legged creature near USB sockets, which is burnt.
      It is marked U8 on the motherboard and M113 on the IC itself.

      Could somebody tell me, what IC it is exactly? Or maybe offer me a schematic for this laptop?

        Comment

        • spidey
          climbs
          • Dec 2012
          • 644
          • Cyprus
          #3
          Re: CQ56-130SY USB problem.

          desolder ic, short pin2 and pin 8 on the bord. it should work.
          Last edited by spidey; 03-18-2013, 05:55 PM.

            Comment

            • RethoricalCheese
              Badcaps Legend
              • Mar 2013
              • 1517
              • Estonia
              #4
              Re: CQ56-130SY USB problem.

              Okay.

              Actually I found out 2 things - the same IC is on the third USB board and it is not M113. It is actually G547F2.

                Comment

                • mockingbird
                  Badcaps Legend
                  • Dec 2008
                  • 5484
                  • -
                  #5
                  Re: CQ56-130SY USB problem.

                  Here you go:

                  https://cdn.badcaps-static.com/pdfs/...0dec09f5f8.pdf

                    Comment

                    • RethoricalCheese
                      Badcaps Legend
                      • Mar 2013
                      • 1517
                      • Estonia
                      #6
                      Re: CQ56-130SY USB problem.

                      Thanks!

                      Edit: Problem fixed. Thanks again!
                      Last edited by RethoricalCheese; 03-20-2013, 05:12 AM.

                        Comment

                        • spidey
                          climbs
                          • Dec 2012
                          • 644
                          • Cyprus
                          #7
                          Re: CQ56-130SY USB problem.

                          Originally posted by The_Boss
                          Thanks!

                          Edit: Problem fixed. Thanks again!
                          How did you fix it ?

                            Comment

                            • RethoricalCheese
                              Badcaps Legend
                              • Mar 2013
                              • 1517
                              • Estonia
                              #8
                              Re: CQ56-130SY USB problem.

                              Removed that shorted IC and soldered a wire to pin 2 and 7 (straightest way).

                                Comment

                                Previous template Next

                                Related Topics

                                Collapse
                                • theone111
                                  Problem with LG Plasma 60PM6700 - Random power downs
                                  by theone111
                                  I have an LG Plasma TV 60PM6700 for the past ~12 years.

                                  In the last ~3-4 months I have been having some issues.
                                  1. Problem: It started with random picture disappearing (sound still worked).
                                    Frequency: Happened about once a week.
                                    Solution: Had to turn off TV wait a few seconds before turning it on again.
                                  2. Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
                                    Frequency: Happened about once a week.
                                    Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve.
                                  3. Problem: TV shuts down
                                  ...
                                  1 Photo
                                  07-22-2024, 10:36 AM
                                • Zeonalbasta
                                  Thinkpad X1 Carbon "LMQ-1MB 12298-2 48.4LY26.021" VCC3M problem
                                  by Zeonalbasta
                                  i have a problem with thinkpad X1 carbon gen 2 "LMQ-1MB 12298-2 48.4LY26.021"
                                  The laptop was turned off because the MOSFET was not transmitting voltage. After checking it turned out that the gate pin on the MOSFET was the problem, because it was producing an inappropriate voltage. and it was discovered that the problem was with the Think engine, so I decided to reprint each pin, and finally the mosfet could work properly. However, there is another problem, even though the voltage has been supplied to the laptop, it still won't turn on, there isn't even an LED indicator. After double...
                                  09-13-2024, 01:17 PM
                                • Gibon378
                                  Problem with stopping audio and video for no reason
                                  by Gibon378
                                  PC Specs:
                                  • CPU: Ryzen 5 1600
                                  • GPU: GTX 1080 Palit JetStream
                                  • MOBO: ASRock ab350 PRO4
                                  • RAM: Crucial Ballistix Sport 2x8GB 3000MHz (XMP 2.0)
                                  • PSU: XFX 650W (don't remember what model)
                                  • OS SSD: ADATA SP920
                                  • OS: Windows 10 21H2


                                  Problem description:
                                  Hi. I have a problem that has been going on for some time (2-3 years). It's hard to explain what it really is. Sometimes, my computer stops playing music, stops videos (starts buffering on youtube), there is no sound in games and when I minimize the game window and return to the game there is a black screen with window borders...
                                  11-19-2022, 09:41 AM
                                • perzyk23
                                  Lenovo T580 - LCD Panel problem - error 0288
                                  by perzyk23
                                  Good morning,
                                  I have a problem with Lenovo T580, which after error code 0288 suggests a problem with the display. I checked the display and it works on another laptop. I replaced the display cable with a new one. I programmed another BIOS (downloaded from this forum) and I still have the problem of a dead display - there is an image via HDMI, and the system does not detect the built-in LCD at all. The problem appears to be hardware. What can I check to confirm or disprove this? I found many threads on the Internet related to this problem 0288, but without specific solutions. Please advise....
                                  10-25-2024, 12:42 AM
                                • SDNarcia
                                  Dell 15R-5521 keyboard problem (KBC?)
                                  by SDNarcia
                                  Hello, I have a Dell 15R-5521, with the problem that the Ctrl, Alt, Shitf and Num Lock keys do not work, I tested the keyboard with a keyboard tester and it is functional, I also got another new keyboard and the computer has the same problem with the same keys. Check continuity between the ZIF connector from the keyboard to the KBC and all pins are correct. I cleaned the ZIF connector and the KBC and I still have the same problem. I reinstalled windows just in case, and it didn't work. I updated the BIOS to the latest version A16 and there were no changes.

                                  As additional information,...
                                  07-20-2024, 10:47 PM
                                • Loading...
                                • No more items.
                                Working...