Faulty Philips PSU (715g5246-p01-000-002s )

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  • lolich112
    GTX 1660 Ti: Missing GPU Details & Abnormal Behavior - Possible Faulty IC?
    by lolich112
    Hello everyone,

    I've been encountering some perplexing issues with my ASUS ROG STRIX GTX 1660 Ti Gaming OC and am seeking insights or potential solutions from the community.

    Symptoms:

    Initially experienced a gradient-style black screen from the top.
    Poor performance: ~10 FPS on the lock screen.
    Encountered artifacts followed by black screens.
    After addressing a PSU-related problem, still observed a performance drop (~10 FPS).
    Upon using GPU-Z:
    Memory size shows as 0MB.
    Unknown bus width and bandwidth reported....
    10-27-2023, 06:17 AM
  • tony359
    Faulty CRT AKF12/Philips CM8500: bad flyback?
    by tony359
    Hi all,

    I have a CRT (Acorn AKF12, based on the 240V version of the Philips CM8500) which has stopped working. It's making a high pitched noise but not too high. I know this is symptom of a faulty flyback.

    What happens when a flyback fails? I see that the main voltages out of the PSU are not reaching rated values, as if there is a short.
    There are supposed to be 125V/26.5V/15.5V outputs but I am reading something like 48V, 10V and 8V. If I unplug the PSU from the rest of the PCB, I can measure the expected values.

    Can it be a short somewhere...
    08-22-2023, 04:39 PM
  • ugamazing
    820-02020 PPBUS_AON missing
    by ugamazing
    Board had no history of liquid; unsure of drop history, but no signs of damage of any kind worth noting.

    Charger sitting at 5v/0a. PPBUS is at 1.9v-0.9v steady cycle (peaks, drains, loops). Confirmed CHGR_EN_MVR is missing, but DCIN was reaching ISL just fine, so replaced ISL--no change at all. Confirmed pp3v8_aon is also missing--and being unsure *exactly* which signal appears first (or if they are simultaneous), I inspected PMU/U8100 area and found no shorts, but also found PP3V8_AON_MPMU_ISNS_VIN missing (not shorted). Replaced U8100 just in case (have had them fail in weird ways),...
    02-05-2025, 04:21 PM
  • jpreza
    Apple NVIDIA AGP GeForce 6800 GT Dual Link DVI+DVI outputs 603-6338 missing caps!
    by jpreza
    Hi everyone,

    I recently acquired this card from a seller who was selling a PowerMac G5 for parts. He mentioned that the video card was probably broken too.

    Upon closer inspection, I can tell the reason why it won't work: it's missing a bunch of CAPS! (it's also missing an inductor - 1.0uH).

    It's a nice card as it's one of the few AGP cards that will support 2560 x 1600 resolution on a PowerMac G5 using a 30" Cinema Display.

    Looking at the card, it appears to be missing the following:

    1x 1.0uH inductor - orange square
    2x...
    1 Photo
    11-01-2024, 10:54 PM
  • gurj1979
    Asus Zenbook UX431DA / UM431D - Ryzen - missing PWM Fan Signal.
    by gurj1979
    Hey guys.

    Need help with this one.
    Fan not spinning due to missing PWN Fan signal.
    Also 5 seconds from powering up it freezes, unless in BIOS.
    But as soon as Windows starts to load, it will freeze.
    CPU is COLD / Room temp when it freezes.

    I've replaced the CPU, same problem.
    Replaced SIO/KBC IT8987e and reprogrammed - same problem.
    Replaced fan - same problem.
    Replaced flex cable from board to daughterboard (which has fan connector on it) - same problem.
    Checked the Thermal sensors around CPU and Board to the SIO/KBC and...
    08-19-2024, 05:22 PM
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