Proscan 37LC45Q wont turn on

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  • PNI E.
    Samsung ue55tu7170u not turn on and no standby led main bn9650990e
    by PNI E.
    Hi guys, I’m back here my friend give me her tv, that doesn’t turn on and no standby red led. When u plug in the cord the red led of one two second is on, then turn off. If you push the power button or the remote the red led blinks but nothing happen. I give u some photo with voltage, don’t look the fuse….because I blow it for mistake nd I dint have the right replace so I just put it for test the tv. The standby voltage should be 11,88 volt on the diode, but I have 13 volts. I put in the photo the different volts I test and there are someone negative…I don’t know if it s normal. On...
    03-17-2025, 04:23 AM
  • madsox
    Harman Kardon AVR 171S - standby led lights up, does not turn on
    by madsox
    Greetings!

    Thank you in advance for your understanding, I am writing to you through a translator.

    A Harman Kardon AVR171S amplifier was given.

    The history of the machine is as follows:
    It was faulty when I bought it, I want to fix it.
    I replaced the HDMI switch and one of the DAC ICs in it.
    After that it worked without a problem.

    I watched a movie using the amplifier, and at the end the amplifier got really hot.
    The cooling was faulty, I will fix this later.
    I switched it to standby mode, waited for...
    09-24-2022, 10:46 AM
  • Egidio85
    Samsung NP750QFG-KA3DE does not turn on , Blue LED flashes 3 times
    by Egidio85
    Hi everyone, I have a Samsung NP750QFG-KA3DE , MainBoard VESTA3-15 BA92-24515A

    the battery is charged. pressing the power button the blue LED flashes 3 times and then stays blue. then the sequence repeats.
    the fan does not start.

    I noticed that I have no power on the processor and it does not heat up. could it depend on the bios?​

    any advice on what to check?
    06-10-2025, 05:00 AM
  • dionzarek
    PS5 Slim EDM-040 Only turn on 1 Sec, Blue light then immediate off.
    by dionzarek
    Hello everyone, I am new to this PS5 troubleshooting, I need help on diagnosing the problem. My PS5 Slim board EDM-040 that beep and only shows blue light then immediately turn off.

    I've checked the PSU its normal 12V. I've checked all the capacitors its all good no shorts, but there are 2 caps shorted, I think its near the SSD. You can look at the image attachment.

    When tested it only shows 0.003 while other caps show 0.4 to 1. WHen in continuity mode those 2 caps goes beep/shorted.

    Any help to where should I check on or suggestion would be very appreciated....
    02-08-2025, 11:00 PM
  • 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
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