LG flatron w1943se-pf

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • hazim
    Senior Member
    • Mar 2016
    • 62
    • egypt

    #1

    LG flatron w1943se-pf

    lg flatron w1943se no power

    open case found ic 303 APW7142 burnt

    what's its equivalent or how can it was replaced in circuit ??
    Attached Files
  • CapLeaker
    Leaking Member
    • Dec 2014
    • 8038
    • Canada

    #2
    Re: LG flatron w1943se-pf

    buy it from Ali etc. There are quite a few places where you can get the exact same PWM.

    Comment

    • ulyanoff
      Member
      • Jun 2016
      • 12
      • Ukraine

      #3
      Re: LG flatron w1943se-pf

      Also see AOZ1073, analog.

      Comment

      Related Topics

      Collapse

      • jinu_j
        LED driver circuit. Burnt Resistors
        by jinu_j
        Hi Folks
        This has to do with a LED light driver rated for Output - DC36-65V 300mA. This is used to drive a 15W LED panel light.

        Now this does not work so opened up and found 2 resistors burnt to crisp. Sensing a learning moment, i looked around the circuit to figure out that it is built around the OB2538 chip. The circuit to a large extent follows the sample application circuit mentioned in the data sheet. I have traced the actual circuit and the same is also attached for reference.

        But i have some queries on this circuit
        1. The resistors that burnt to crisp...
        08-26-2020, 01:24 AM
      • valente222
        help SG2701B01-7 panel chinese, would this integrated circuit be equivalent? Chinese IC CS601C regulator.
        by valente222
        Hi, I'm repairing this Chinese SG2701B01-7 panel. There isn't much information about it. The original part for the panel is a CSOT CS601C regulator. I can't find anything commercial on Aliexpress; there's only the CS601 without the final 'C'. They claim it's a variant. But will it be compatible? Well, my diagnosis on this screen is a video problem; the image is practically black, although there is HDMI communication. The LED light is on (backlight), but there is no VGL, no 3.3V, and no VSS. It seems that this IC is the one controlling these voltages. The monitor worked correctly for a moment and...
        05-12-2025, 03:42 PM
      • Astonished
        Fixing the Charge Circuit of the Batteries of the DC Motor
        by Astonished
        Hi friends of electronics

        What you see in the video and pictures attached is the circuit for charging the batteries of a DC motor.

        The problem is that this circuit cannot charge the batteries (3 1800mAH NiMH batteries) any more. When the circuit was OK, its green LEDs lit up one at a time to show that the batteries have charged more. But now that the circuit is flawed, LEDs light up as you see in the video and at the same time successive beeps are heard.

        Please help me fix this circuit.

        (the datasheet of the IC: https://pdf.datasheet.live/28...
        01-28-2025, 06:24 AM
      • Tarot Superstars
        Short Circuit tester
        by Tarot Superstars
        Hello.
        I have seen a short circuit tester made with 3 * 9V batteries, a voltage limiter component and a resistor connected to the probes of a multimeter.
        The theory is that the meter becomes sensitive enough to read very low resistances and the lowest resistance to ground on a circuit is likely to be a short circuit in that area.

        Link
        The Amazing $1 Short Finder Upgraded! Convert ... - YouTube
        https://www.youtube.com/watch?v=0eixDdCpiO4

        My multimeter isn't normally sensitive to very small resistance, but when I put a 1 mega ohm resistor...
        09-25-2023, 09:11 AM
      • M1NEBLANK SHOW
        MSI B250 Gaming M3 Short circuit in CPU power supply circuit
        by M1NEBLANK SHOW
        Hello. MSI B250 Gaming M3 board, short-circuit on the power supply. Found a problematic mosfet VQ1
        (N-PK616BA_PDFN8-HF) soldered it out - short circuit is gone. I replaced VQ1 + VQ5 (N-PK632BA_PDFN8-HF). VQ1 was replaced with PK618. After starting attempt VQ1 is lit again. What can be the problem? In the driver?

        Schematic and Boardview here
        ...
        04-04-2025, 03:57 PM
      • Loading...
      • No more items.
      Working...