"2 seconds to black" issue, capacitors are fine

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  • zklgfs
    Anker SoundCore 2 Bluetooth Speaker Turns Off After a Few Seconds (Possibly Firmware Issue?)
    by zklgfs
    Hi,

    I have an Anker SoundCore 2 (A3105) that I saved from the trash (well, I guess there's a reason why it was supposed to go into the trash...). The problem is that it always turns off after a few seconds (sometimes it stays on a bit longer, between 30 and 60 seconds, but it still turns off). The power light turns on and the bluetooth light starts blinking, but both abruptly turn off again. The "turn off sound" is still played after the lights turn off. Sometimes, it also loops the on-off cycle several times without me pressing any buttons. If I connect an AUX cable, music...
    08-11-2025, 02:14 PM
  • wizard13
    Dynabook Satellite Pro C50D-B-100 - BIOS Issue, Black Screen
    by wizard13
    Hello everyone,

    I am experiencing a BIOS-related issue with my Dynabook Satellite Pro C50D-B-100. When I power on the laptop, the screen stays black, and there is no response from the system. I suspect a corrupted BIOS.

    I have checked the forum and the available documentation but could not find a solution specific to my issue.
    • Brand & Model: Dynabook Satellite Pro C50D-B-100
    • Part Number (P/N): PYU13E-00C00PFR
    • Serial Number (S/N): 22028896H
    • System Configuration (SC): A1PYU13E1127
    • Motherboard Model: IP3_ACN16_MB_V21_20211222A
    • Power Input: DC 19V –
    ...
    02-28-2025, 02:43 AM
  • ttmi100x
    HANNSG Hi221 -- 2 secs to black feat. CCFL flicker & "burn" marks on power board
    by ttmi100x
    Greetings everyone,


    I have a HANNSG Hi221 monitor that exhibits two seconds to black issues (backlight goes off, display is still on as confirmed by shining a flashlight on it) with some additional oddities...


    The monitor failed on me with a standard "2 seconds to black" some time ago prompting me to initially replace most of the electrolytic capacitors (some of them were bulging/leaking).
    Things kinda sorta worked for a night, then the problem returned along with some flickering and "buzzing" noises.

    Upon closer inspection...
    "Burnt" resistor
    6 Photos
    07-31-2024, 06:36 PM
  • DqMagetz
    Acer Nitro 5 AN515-54. displays on the external monitor and works fine, the issue is NO display on the internal screen
    by DqMagetz
    Good day!
    I have a customer's laptop — Acer Nitro 5 AN515-54 (EH5VF - LA-H501P). It has a display on the external monitor and it's working fine, but the issue is NO display on the internal screen. I already replaced the eDP cable and checked the LCD connector pins.

    Here are the voltage readings:
    • Input – 19V (stable)
    • +LCDVDD – 3.3V briefly, then drops to 0V
    • EDP_HPD – 3.3V briefly, then drops to 0V
    • PCH_BKL_PWM – 2.2–5V briefly, then drops to 0V
    • EC BKOFF# – 1.8V briefly, then drops to 0V
    • PANEL_OD_EN – 0.3V

    Is it possible that the EC chip is corrupted or damag...
    2 Photos
    07-12-2025, 09:37 PM
  • Ancient1
    Strange LG TV issue : Image vertical lines in black screen
    by Ancient1
    Hi

    Asking for a friend.

    I'm used to black vertical line in otherwise good image - probable solution is a rubber to push and tighten the COFs bonding.
    but here its the opposite !

    TV has new T-con = same issue
    A missing panel voltage would have global effect

    So , what should one do ? how can I find where the fault is ?

    Thanks !...
    02-05-2025, 03:37 PM
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