RCA LED52B45RQ Will not turn on

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  • pajdek
    Lenovo Y700-17ISK turn on and off
    by pajdek
    Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited...
    09-20-2023, 02:49 AM
  • DynaxSC
    ASRock B650M PRO RS - BIOS CHIP 25Q256JW BLOCKED BY STATUS REGISTERS
    by DynaxSC
    Hi

    I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
    The SPI chip is an Winbond 25Q256JWEQ model (1V8).
    The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
    The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.

    I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6...
    08-04-2025, 12:20 PM
  • Woodsworth
    PS3 CECHC03 60GB YLOD Troubleshooting
    by Woodsworth
    I have a post on psx-place for this but thought I'd try here as well in case anyone has experience or the schematics or any kind of help. Here's the original post from psx-place:
    START
    Hi, so I bought a YLOD Fat PS3 as I wanted a repair project and thought it would be a good way to get experience. I was able to solder to the RX, TX and Diag pads on the COK-002 motherboard and was able to get external access and retrieved the codes. I haven't powered it on beforehand so these should be the last ones. I did try to get internal access immediately after but kept getting scopen response...
    03-19-2024, 07:58 AM
  • robante15
    Acer Aspire 4520 won't turn on after reboot
    by robante15
    Hello, I have an Acer Aspire 4520 from a couple of decades ago and I want to repair it solely for nostalgia.

    It happens that when I turn it on after having been disconnected for a long time, it turns on without problems, it tells me that the BIOS has been reset and that it will load the factory settings, if I tell it to continue, the computer turns on and everything works fine.

    The moment I turn it off and want to turn it back on a second time, or restart it and try to start it again, it no longer gives an image, and it no longer responds.

    If I remove the...
    04-06-2024, 06:50 PM
  • objecttothis
    EVGA 430W PSU Correct voltages but computer won't turn on
    by objecttothis
    I had a desktop form factor mini-server die on me a few weeks ago. Through my initial diagnostics, I was convinced it was the motherboard because when I shorted the Green wire on the ATX connecter, the multimeter gave me all the correct voltages on the various pins of the ATX connector and 5VSTB was also correct. To my surprise the replacement motherboard wouldn't turn on with the case power button either. I threw in another PSU and it turned on right away. This is an 80 Plus EVGA 430W PSU with PN:100-W1-0430. I pulled the cover off and don't see any immediately obvious blown caps or scorch...
    02-08-2025, 11:19 AM
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