Sony kdl-42es441 Dead no standby light

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • superg
    Senior Member
    • Dec 2013
    • 58
    • Barbados

    #1

    Sony kdl-42es441 Dead no standby light

    Hi
    This tv is dead but i am getting the 3.3v stand by and 3v for the power on on the power supply.I currently suspect IC6501 on the power supply but there are no markings on it. The power supply is a APS-334 and I would like to know that ic part number. Thanks.
    Attached Files
  • Andrew F. Ali
    Badcaps Legend
    • Jan 2014
    • 2450
    • Trinidad & Tobago

    #2
    Re: Sony kdl-42es441 Dead no standby light

    Sometimes the markings for SMD ICs are below. Why do you suspect this IC. Did you try a self test to turn on the PSU?

    Comment

    • superg
      Senior Member
      • Dec 2013
      • 58
      • Barbados

      #3
      Re: Sony kdl-42es441 Dead no standby light

      Originally posted by Andrew F. Ali
      Sometimes the markings for SMD ICs are below. Why do you suspect this IC. Did you try a self test to turn on the PSU?
      I don't know how to self test the PSU. How do you do that?

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Sony kdl-42es441 Dead no standby light

        Can we see the pictures of the whole backside of the TV showing all the boards?
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        Related Topics

        Collapse

        • brithepi2k
          Sony KD-65XE8596 no standby light
          by brithepi2k
          Hi,

          I’ve got a Sony KD-65XE8596 here that has no standby light coming on. I’ve tested the power board with the test meter, the TV needs 3.4 for the standby but only getting 2.4. Anything that I can change/check on the board to get it working? Pictures of the board are included.

          cheers...
          09-06-2025, 02:22 PM
        • mecha1166
          QN750Q8FNBFXZA Service Error Codes Needed - Error code 1-3-1-2 ? Dead set, only blinking standby light in repeating sequence
          by mecha1166
          I am working on a QN750Q8FNBFXZA. Dead except the standby light. It blinks what appears to be 1 3 1 2. 1 long blink, pause, 3 short, pause, 1 long, pause, 2 short, pause, repeat. A service manual would be very helpful, or if anyone knows these error codes. Thanks!
          03-28-2024, 08:31 AM
        • esqmooo
          HP Elitebook 845 G8 dead, only caps lock flashing 7 times. Charging light always on
          by esqmooo
          Hello everyone.

          This is my development machine. I've been using it since two years and half without any problem except sometimes it wouldn't wake up from sleep.
          Lately the issue became more frequent and powering it up would take few seconds to show the POST screen.
          Then the computer refuses to power on at all. Now only the caps lock button flashes 7 times then stops. The charging light is always on whenever a power source is connected (battery or charger).
          I tried long pressing on the power button, after several seconds it would go off then when the button is released...
          03-11-2025, 03:57 PM
        • wushumike
          LG 65UB930T - Standby Light can trigger but TV dead
          by wushumike
          The problem: When remote controller is press, the TV seems to wake from standby light goes off; but there is no backlight, image and sound. The relay did click on.

          I have removed the power board to check. Using 2 x 10K resistor from 3.5V to PWR_ON AND DRV_ON, all the voltages is correct.

          The main board has a red LED and is lited, but the optic link does not light up.

          The Power board after sometime will start to blink x 5 interval.... I would assume this is to indicate DRV_On not working.

          Any expert here came across the same problem? I...
          03-27-2023, 09:46 AM
        • shagster
          TX-P50UT30B Dead - No Standby light.
          by shagster
          Hi, haven't been on the forum for a while. But I thought I'd ask here incase this has already been solved.

          Anyway, I have this Panasonic TX-P50UT30B. It's completely dead, no red standby light, nothing. I took off the back and had a look at the fuses. All of them are intact. No shorts when testing the mosfets of the Power supply either.
          And the capacitors look fine also.

          I'm guessing it's a main board issue. But I don't really know tbh. Maybe a corrupt firmware flash, dunno.
          02-27-2023, 10:07 AM
        • Loading...
        • No more items.
        Working...