17pw26-4

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • ReeceyBurger123
    Never Give Up !
    • May 2014
    • 7325
    • Britain

    #21
    Re: 17pw26-4

    You know how you tested the fuse ? Your meter beeps if its good, same with a shorted component if a part is shorted your meter will beep when you probe the legs of a device. To test the fets go up and down the board in diode mode and probe the pins of each fet.
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

    Comment

    • charlierfc
      Senior Member
      • Mar 2013
      • 93
      • scotland

      #22
      Re: 17pw26-4

      thanks reeceyburger. will give that a try, need to head out now, i noticed it was a bit discoloured underside near the ones at the top, so ill guess thats the ones to start with

      Comment

      • ReeceyBurger123
        Never Give Up !
        • May 2014
        • 7325
        • Britain

        #23
        Re: 17pw26-4

        Glad to help, normally the top ones that blow hopefully they did not take out the resistors too if so not going to be easy.
        Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

        https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • vinceroger69
          Badcaps Legend
          • Mar 2012
          • 6714
          • uk

          #24
          Re: 17pw26-4

          i wonder if its worth also replacing that controller ic SEM2017 Ic as in reece thread post 82 it may save more parts blowing and wasting money etc
          https://www.badcaps.net/forum/showth...=Ssi_400_14a01

          Comment

          • ReeceyBurger123
            Never Give Up !
            • May 2014
            • 7325
            • Britain

            #25
            Re: 17pw26-4

            Originally posted by vinceroger69
            i wonder if its worth also replacing that controller ic SEM2017 Ic as in reece thread post 82 it may save more parts blowing and wasting money etc
            https://www.badcaps.net/forum/showth...=Ssi_400_14a01
            Probably is tbh Vince, mine was sending a crazy Vcc voltage to the fets causing them to blow when ever it did meaning the controller had failed intermittently.
            Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

            https://www.facebook.com/Telford-Tel...7894576335359/

            Comment

            Related Topics

            Collapse

            • x_orange90_x
              Vizio E55-E1 bad backlights or bad inverter?
              by x_orange90_x
              I just got this tv today and it appeared to have no backlight on. After taking off the rear cover and checking again in the dark I can see that MAYBE one quadrant is lit.. But still it's quite dim. I was going to check the LEDs with my tester, and I found LED 1 and LED 2 + pins on the wire from the inverter, but I couldn't identify a ground. Nonetheless I tried using a mounting screw on the inverter board and also the chassis as ground but regardless my tester reads 300 which is what it reads when there is no voltage draw.

              I don't know how exactly to test the inverter itself. Is it...
              01-29-2025, 09:24 PM
            • MisterAIL
              PS5 digital / No Power / No Beep / Good power supply
              by MisterAIL
              Hi everyone,

              Brought a non functionnal PS5. Apparently only a bad PSU...
              No beep, nothing.

              After some tests i found this :
              - PSU is fine (12 volts stable)
              - 12 volts line is shorted
              - DA9065 was fried, F7003 also => Replaced both of them, short is gone on 12 volts line, no dead short anywhere else.
              - By the way, nothing change. No signal, no power, no beep.

              Mesuring all rails with my workbench psu (12 volts input)
              - 0.00 amp drawing
              - 12 volts, 5 volts, 2 volts, 1,15 volts are presents (suppose new DA9065 do is...
              03-12-2024, 03:24 PM
            • Gentian
              APSINT3636VR 3600W APS INT Series 36V DC 230V AC Inverter/Charger schematic
              by Gentian
              I have a tripp-lite aspint 3636vr inverter charger which blow some of mosfet transistors. I replaced them repaired also the driver circuit and tested but the mosfets burn again.

              It work very well as inverter and also as charger if I let the rear switch in auto mode (inverter) and charger only(charging) but in auto when I connect the feed line 220V AC first time it pass ok to line and start charging the batteries but when I remove the feed line it pass to inverter mode and if I do it again the second time when passing from charging to inverter the Main transformer start making a...
              03-06-2023, 07:07 AM
            • valvashon
              Insignia NS-LCD19-09 (PS OK, Inverter problem?)
              by valvashon
              For some reason I'm just not going to let this 19" TV defeat me. I guess because I have a schematic to work from I feel like I'm oh so close.

              History- while adding a turn-on circuit I let a small screw roll under the power board. Worked through all of that circuitry, probably replacing a MOSFET and PWM controller that were not bad but I was following the service manual. Finally figured out that the power supply is in working order when the inverter section (for the backlights) is disconnected. When the +12 supply to the inverter is disconnected the +12 and +5 will come up...
              01-04-2024, 01:44 PM
            • BTubbs200
              Dead Dell Latitude 5420 not receiving 20 volts from USB-C charger
              by BTubbs200
              Hello,

              Dell Latitude 5420 P137G
              Board: LA-K491P REV A01

              I have received this laptop which was described as "does not power on or accept charge." Battery shows no sign of charging when charger is plugged in, nor does the board show any signs of life when battery is unplugged and charger is plugged in. No light from the LED at all or any other indications of activity.

              Board seems to have no shorts, all power rails are fine and show high resistance.

              When charger is plugged in, voltage is present in 3.3V rail but absent in others....
              01-24-2025, 08:15 PM
            • Loading...
            • No more items.
            Working...