How to test iPad charging dock

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • karoliens
    Member
    • Dec 2019
    • 18
    • Denmark
    #1

    How to test iPad charging dock

    Hi,

    Any way to test iPad dock and Tristar IC after dock replacement without Tristar tester?
    I have only the board, no battery.
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14627
      • Canada
      #2
      Re: How to test iPad charging dock

      Yes. This is dock flex cable. You can use the diode mode of testing. The quick testers do the same.

      A break out pcb for the lightning connector will help.

      Search for the video from Alex at Northridge repair that shows the procedure.

      https://youtu.be/xD1-jSEuoD8
      Last edited by mon2; 07-14-2022, 11:36 AM.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • badboyzzz
          A2229 ipad pro 12.9 4gen strange problem Logic Board related charging but no usb data
          by badboyzzz
          I have a strange problem with my iPad Pro 12.9 4Gen / A2229. When I start the device, it stays on the Apple logo, but when I heat the back of the device with a hair dryer, the device boots, but this time there is an interesting problem. The iPad is charging, but there is no USB data on the computer. The USB charging port has been changed and the chips seem normal, but I have given it to 2 different Apple services in Latvia, but the repair could not be done. Is there anyone who can help with this? Can someone support the repair by sending only the motherboard within Europe? Thank you.
          12-28-2024, 02:11 PM
        • waterchill
          Apple iPad Pro 12,9" 4Gen no charging, but working fine
          by waterchill
          Hey folks, I have this iPad Pro 12,9" 4Gen A2232 here with no charging issue. The main fault was a crossed pins / faulty USB charging port due a bad cable.

          So I started to replace this parts:

          - replaced usb-c port -> no result
          - replaced battery -> no result
          - replaced usb-c chip CD3217B12A -> no result
          - replaced 343S00326 -> no result
          - replaced 343S00327 -> no result
          - replaced 343S00328 -> no result

          I have no more ideas for this issue. There is no short on the whole board, and the iPad is working fine...
          04-30-2024, 05:37 AM
        • waterchill
          iPad Air 5 only charging on Laptop
          by waterchill
          Hi, I have an iPad Air 5 here, this thing only charging on a macbook or laptop. It does not charge on any wall charger or other things. Tried different cables with no result. When plug in into laptop sometimes it does not start charging and I have to turn the plug and the it is starting. The USB port looks ok with usb-c tester, battery also ok. I have no idea where to start searching. Any suggestions? Thanks
          10-08-2024, 11:40 AM
        • waterchill
          iPad Air 3 no charging
          by waterchill
          Hi I got this iPad Air 3 Wifi only here which was dead from one day to other. I found out that U8500 had a short. Replaced U8500 and after that the iPad worked for about 5 seconds and dead again (current was 600mA without battery). Then I found a short on VDD_Main. Found that C81D7 cap was shortet. Replaced the cap short gone. Now the iPad can boot up with battery but no charging at all. If plug in charger says 0,000A but on the display it says that it is charging. When plug in the board without battery, current is looping between 80mA and 0mA like about 3 seconds 80mA then 3 seconds 0mA and so...
          04-20-2023, 03:45 AM
        • Aimbit
          Apple iPad Air 2 (A1566) - Seems to be power cycling, no display, new battery/Tristar
          by Aimbit
          Using an ammeter, original battery was only taking 90mA or so... then down to 0, up to 90mA, down to 0, etc, in a repeatable pattern. This iPad was very old, so first thing I did was swap the battery for a good one, and it came pre-charged. The old battery had negligible voltage.

          Now the iPad go up to about 1.5-1.6amps charge, then it drops to 0 after a few seconds... rinse/repeat as before. I tried changing the Tristar chip to see if that would help (and also my first real BGA chip!) but it seems to make no difference. Where should I look next?

          I should poke around the...
          06-29-2024, 09:51 PM
        • Loading...
        • No more items.
        Working...