hp 14s-dq1040ns short to ground

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  • playit
    450watt power supply 5v, 3.3v short to ground wire,in output rail ,connectors
    by playit
    hello everyone , working zebronics power suply 450 watts , 5v ,3.3v givin short to ground black wire, also in circuit at output, resistor was charred but shows right values , after removing resistors 39ohms, 51 ohms, there was no short , no continuity beeps with ground , but after replacing new resistors (now i am not switching it on) ,again short still exists . when i put bigger ohm resistor like 100k ohm , no short beeping sound comes , lower ohm resistor gives continuity beeps ,other big ones donest , as its a working psu , i am confused what to remove now or how to go further now .
    ...
    09-02-2023, 02:43 AM
  • fab13
    Nintendo Switch lite charging chip heats up and does not short circuit
    by fab13
    Hello everyone


    Small technical problem on a Nintendo Switch lite
    Here's what I noticed: the USB port has been damaged internally, with a short circuit on the power supply line to the small fuse.

    After replacing the USB connector, the short circuit went away and I can't see any other short circuit in the whole motherboard.

    When I charge the console, it seems to be charging: I get 15 volts and an amperage of 0.450 A.

    Then, after a while, the amperage increases to 1.1 A and the BQ24193 charging chip starts to heat up, as evidenced...
    09-16-2023, 04:59 AM
  • MisterAIL
    820-00840 / No boot / PP3V3_G3H Short to ground
    by MisterAIL
    Hello everyone,

    Firstly sorry for my english, french guy inside.

    I brought a macbook pro A1708 - 820-00840 logic board, wasn't powering on.
    History is a day, nothing happened when opening the laptop.

    Nothing special inside, no corrosion, no liquid damage, never opened.

    First, with the logicboard alone on the desk, mesures are :
    5v017 and 0.000 amp. nothing else.
    Finding a short on the PP3V3_G3H_VR, but not on the PP3V3_G3H (0.540 on diode mode), PPDCIN_G3H_CHGR_R present (5,1 volts) PPVIN_G3H_P3V3G3H around 4.1 volts. PM_EN_P3V3_G3H...
    10-13-2021, 11:42 AM
  • triplefour
    Samsung UN55ES7003 has blown fuse on TCON and short to ground.
    by triplefour
    Samsung UN55ES7003
    made house call.
    red power led comes on, blinks twice, no display, no backlight, relay clicks, repeat.
    psu has self test feature.
    disconnected from mainboard.
    determined PSU ok BL ok.
    suspect mainboard.
    disconnecting tcon has no change on operation.
    markings on mainboard:

    BN97-06531P 0151
    BN94-06123R

    found and ordered replacement on ebay https://www.ebay.com/itm/394077328633
    for 54$

    second house call:
    with replacement mainboard, tv turns on, has sound,...
    07-13-2022, 03:53 PM
  • Prott
    PS5 - long screw damage, via to ground layer short?
    by Prott
    Hello dear Badcappers,
    I came across a PS5 that was longscrewed. The screw went through the HDMI IC (which I replaced + repaired the traces it damaged), however the screw also bend the board and slightly cracked it on the other side. It still seems like it could be fixable though as the area might not have lots of traces going through it (fingers crossed).

    Can somebody, please, measure their board and tell me if my assumption of an inner short between the via and ground layer is correct? These 3 pads have almost no resistance. I would like to make sure those are not some data...
    2 Photos
    07-27-2024, 08:54 AM
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