Lenovo E15 1.Gen no power on, charging IC burning.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • jacobtc
    Badcaps Veteran
    • Apr 2016
    • 274
    • Denmark
    #1

    Lenovo E15 1.Gen no power on, charging IC burning.

    I have this E15 that had a broken USB C port. Removed the port, and tried powering on the system with the battery connected, the charging IC (SYX198BQNC) becomes really hot (see pic). Can't really find any shorts on the board though, which I find weird.

    The IC became hot with the charger connected without battery as well.

    What is the first thing I should check?
    Attached Files
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Re: Lenovo E15 1.Gen no power on, charging IC burning.

      SYX198BQNC is not a charging IC.

        Comment

        • jacobtc
          Badcaps Veteran
          • Apr 2016
          • 274
          • Denmark
          #3
          Re: Lenovo E15 1.Gen no power on, charging IC burning.

          Originally posted by mcplslg123
          SYX198BQNC is not a charging IC.
          Sorry, you are right, it seems to be a IC which has PWM, Upper Gate and Lower Gate in a single package.

            Comment

            • joby91
              Member
              • Sep 2018
              • 36
              • german
              #4
              Re: Lenovo E15 1.Gen no power on, charging IC burning.

              Hello,

              did you find the solution? Have the same Problem, the IC is getting hot but no shorts on the mainboard.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • thesame
                  Lenovo TB-X605F fake charging after charging connector replacement.
                  by thesame
                  Hy guys, i have this lenovo TB-X605F with charging problem, the tablet is fake charging, i have replaced the charging connector twice, it only draws 0.40 Amps when pluging the cable for the first time then it stops drawing any Amps but the tablet keeps showing the charging image at 0% as long as i keep it connected. I have no voltage at the battery connector with the cable pluged, but i have 5 volts after usb connector on some testing points on the board.
                  04-03-2024, 03:14 AM
                • nikolayu
                  Lenovo ThinkPad X1 Nano Gen 1 not charging on 1 USBC
                  by nikolayu
                  I have Lenovo ThinkPad X1 Nano Gen 1 which is not charging on 1 usbc port (the one that has mark for charging).
                  When i connect usb it switchs to 20v but no current draw (only 0.02a) and orang light is on. In windows it shows that is charging but percentage is dropping.
                  Other usbc is charging fine,

                  I installed lates bios and firmwares for thunderbolt and battery.

                  Could be faulty JHL8040R controller?
                  08-31-2024, 11:08 AM
                • B2L_Repairs
                  Lenovo g50-80 charging led flashing but laptop not switching on
                  by B2L_Repairs
                  I got a lenovo g50-80 that shows charging led (orange LED flashing) and when I press the power button the white LED comes on but the laptop doesn't switch on. The fan spins for 2 seconds when I press the power button then it stops. This problem started when my charging dock broke the connecting wires and i soldered these wires back but I might have mixed them. I ended up buying a new charging dock but laptop never switched on it just shows flashing orange LED when charger is connected. Could the super io be bad? I don't know how to go about diagnosing and I can't check any board view since this...
                  01-19-2025, 12:28 PM
                • tmks2
                  Lenovo ThinkPad T14 gen1 charging problem
                  by tmks2
                  I have a think pad t14 gen1, mainboardboard NM-C931 REV 1.0, I replaced the damaged USB-C charging socket, I still have a problem with charging only 5V. Where to look for the fault? Which electronic component is responsible for charging negotiation?

                  here is schematics an boardview
                  https://www.badcaps.net/forum/troubl...98#post1768898
                  10-29-2024, 06:41 PM
                • 247it
                  [SOLVED] Lenovo E15 G4 charging at 5 volts
                  by 247it
                  Hi everyone, I hope someone has some pointers for me, for fun I'm trying to repair USB C charging on a Lenovo E15 G4 laptop, I brought this back from work as it was written off, I successfully replaced the USB C port some time ago, however it was broken again by the end user, this time the port was twisted off the board but the pads survived,
                  I have installed another port but the charger never gets the ok from the PD chip (tps65994ae) to go to 20 volts, it does charge slowly using the boost converter to step up the charging voltage but takes hours, voltages present on the PD controller are...
                  03-05-2025, 05:21 AM
                • Loading...
                • No more items.
                Working...