HP OMEN-X 17T-AP000 not turning on

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • questore
    Badcaps Veteran
    • Dec 2015
    • 500
    • csongrád
    #21

    After digging trough the MP2949A datasheet on page 15 i found that PMBus voltage is set by a resistor that gives voltage from VDD18 to ADDR_P.
    The default address is 20h and that means 0 voltage. (I'm guessing someone knocked off the resisitor accidentally.)

    QUESTION :
    What Votlage should I set the ADDR_P to? (I can experiment with different resistor values to get the exact value from VDD18)

    ANYONE??

      Comment

      Previous 1 2 template Next

      Related Topics

      Collapse
      • reessi
        Acer Alienware Nitro 5 (GH51G LA-L181P Rev: 1C) & Dell Alienware M15 (GDP50 LA-k452P Rev:1) - Both Shorted PCH (SRKMA)!
        by reessi
        Hello:

        I have both these laptops that appeared to have the same fault so I thought I would have a go at replacing the PCH as something to learn, they both are using the same PCH.


        I started on the ACER:

        Up on connecting power no signs of life but current is consumed from the bench power supply and the PCH is hot.
        All the caps on the top of the PCH are showing 0 ohms and the 3.3v rail is shorted.

        I followed the videos from Sorin, Electronics Repair School on Youtube heating from the bottom to install. I practised on around 10 scrap...
        10-29-2024, 11:31 AM
      • Yanleb
        Panasonic TC-P50S1 shorted TXNSC1EDUU (TNPA4782AB) SC Board
        by Yanleb
        Hi every one. I just want to share the successful repair of my shorted Panasonic TNPA4782AB SC board.

        I don't usually do it but so many parts were shorted that I decided to buy the ShopJimmy repair kit instead of sourcing each components individually. Here is the list of components the kit contained, with a remark indicating if I needed that part or not :

        D608, good
        D618 RF101L4S, good (See warning 1 below)
        D619 RF101L4S, good (See warning 1 below)
        D865 RF101L4S, shorted (See warning 1 below)

        IC464 Inverter HA MC74HC1G14, shorted...
        03-09-2020, 12:00 AM
      • modtool
        HP Victus 15-FA1025NL , board DAG3PAMB8D0 REV:D, shorted CPU DrMOS and n-mos
        by modtool
        Hi to all,
        the owner of this machine gave it to me after having opened it to take off the dust from the inside, telling me that after that it didn't start anymore.
        I found that one of the DrMOS (AOZ5016QI) on the CPUCORE was shorted between VIN and VSWH, and that one of the two n-mos connected to the power jack was shorted aswell.
        I unsoldered the two shorted components and verified that there were no other short circuits, then decided to power the mainboard, firstly with the lab power supply, then with its original HP 200w charger, but the behaviour is the same, the board starts...
        04-01-2025, 08:22 AM
      • M1ch4L
        Lenovo Ideapad S145-15IWL Model 81MV Water damage.
        by M1ch4L
        Hello.

        First, I would like to extend my wishes for a Happy New Year to everyone.

        ... so I got this notebook for repair. The ntb is not turning on. A small amount of water was spilled on the keyboard and I found only 2 dried spots, patches on the motherboard. One around Mosfet PQ5302 but is not damaged and the second on JEDP1 connector.

        I measured:

        Mosfets:
        PQ5301 PIN:4 25,35V
        PQ5908 PIN:5 GT_PH shorted to the ground
        PQ5902 PINs 1-4 shorted to the ground

        Coils:
        PL5901 shorted to the ground
        PL5902 shorted...
        01-05-2025, 01:43 PM
      • barry101
        Apple 820-3662 VCore shorted to ground.
        by barry101
        Hi, Would appreciate some help.
        I have an Apple Late 2013 15" A1398 MacBook Pro with Logic Board 820-3662.
        Get charger light but no fan spin or chime. No liquid damage.
        Found PPBUS and VCORE both shorted to ground. Other rails were ok.
        Removed VCORE MOSFETS U7310, U7320 and U7330. Found U7330 was in fact shorted.
        With the 3 MOSFETS removed, get PPBUS and fan spin. VCORE is still hard shorted to ground (0 ohms).
        Attempted voltage insertion on VCORE to locate short using bench supply set at 1.0 VDC and 4.95 Amps (max current for my...
        06-24-2025, 07:34 AM
      • Loading...
      • No more items.
      Working...