Akai LCT3285TA LCD TV power supply issues

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • charlz
    New Member
    • Aug 2012
    • 8
    • South Africa

    #21
    Re: Akai LCT3285TA LCD TV power supply issues

    Please help me with the original values of these caps. EC14, EC10, EC9, EC20, EC19, EC18, EC25.
    the model number of the board is MLT169B REV. 1.1 2006.05.13[/QUOTE]
    Someone worked on this board before and I am not sure the correct values.

    Comment

    • selldoor
      Slow Learner
      • Dec 2010
      • 7870

      #22
      Re: Akai LCT3285TA LCD TV power supply issues

      Perhaps post a good clear picture - ring & label the positions.
      Make a list of what caps you have in which positions now.
      What problems does the set exhibit.
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

      Comment

      • selldoor
        Slow Learner
        • Dec 2010
        • 7870

        #23
        Re: Akai LCT3285TA LCD TV power supply issues

        Originally posted by selldoor
        Perhaps post a good clear picture - ring & label the positions.
        Make a list of what caps you have in which positions now.
        What problems does the set exhibit.
        DO NOT POST THE SAME QUESTION IN MORE THAN ONE THREAD

        Decide which one you want to continue with.
        Please upload pictures using attachment function when ask for help on the repair
        http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • jokerusv
          New Member
          • Oct 2011
          • 1

          #24
          Re: Akai LCT3285TA LCD TV power supply issues

          Could someone help me with value of R12 & R13 for the MLT169 ? The PS in discussion had bulged caps and these resistors burnt and unreadable.
          Many thanks in advance!

          Comment

          • nico81
            New Member
            • Jan 2013
            • 1
            • Italy

            #25
            Re: Akai LCT3285TA LCD TV power supply issues

            Hello everyone, this is my first post.
            I introduce myself, my name is nicola and I write from Italy.
            I hope you can help me, I'm trying to repair a lcd akai modell lct3201ad and placed the power supply mlt169b rev 1.2.
            I replaced all the electrolytic caps, but I can not find the value of the ceramic capacitor C33 placed under the sink the mosfets q11. the code is illegible, and it broke.
            help me! thanks

            Comment

            • Lythius
              New Member
              • Aug 2014
              • 3
              • Italia

              #26
              Re: Akai LCT3285TA LCD TV power supply issues

              q11 is FQP7N80C

              Comment

              • Lythius
                New Member
                • Aug 2014
                • 3
                • Italia

                #27
                Re: Akai LCT3285TA LCD TV power supply issues

                C33 is 101K 1KV

                Comment

                Related Topics

                Collapse

                • Tynan Dill
                  Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
                  by Tynan Dill
                  I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

                  Upon bringing it home and plugging it up, it showed a standby light.

                  I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

                  The screen seems to blackout and stay black, but with a flashlight I can see the display.

                  With my Playstation 4 connected via HDMI, and running a game I can hear sound.

                  Assuming...
                  11-22-2024, 01:46 PM
                • sam_sam_sam
                  Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
                  by sam_sam_sam
                  I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

                  One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
                  03-31-2024, 02:12 PM
                • CMCM
                  Russound CA4 Power Supply Repair
                  by CMCM
                  Hello Everybody,

                  Trying to repair a power supply from a Russound CA4 Multizone Controller (picture attached)

                  Russound no longer supports it but were kind enough to provide a schematic of the power supply (pdf attached).

                  The outputs marked 12v and 20v are all measuring only 1v.

                  The board is clicking, which I think means it is in something called hiccup mode when the flyback transformers switches because of an internal problem or something else on the board Overloading it.

                  The capacitors physically look clean (no bludgesor leaks) and...
                  07-03-2025, 01:12 PM
                • JimBanville
                  Definitive technology SC 2000 subwoofer amp's power supply clicking and popping
                  by JimBanville
                  The sub developed a constant popping every couple seconds from woofer and power LED flickering with nothing but wall AC connected. Connecting an audio cable didn't change anything. It doesn't play but a second or two of audio in between the pops.
                  Opened it up and discovered the power supply is making a faint clicking or ticking sound.
                  I measured the amp's output to the woofer and it pulses up to 50mv DC to be driver. The pulses coincide with the power supply ticking/clicking.
                  I measured the power supply output going to the amp board and it too has this pulsing. Voltage cycles...
                  09-13-2023, 07:21 AM
                • madan1
                  555 based power supply getting too hot
                  by madan1
                  Good day.
                  I have an AC/DC -> DC PWM (rectifier + 555 buck converter) power supply with MDF11n60, which is getting very hot.
                  The input is AC from a transformer and the output powers a 24v dc fan. The power supply is used to regulate the speed of the fan.
                  After several runs on the bench power supply I noticed that the mosfet is reaching 80+C*. The mosfet reads fine on component tester, the thermal paste is changed, the fan is cleaned and with freshly oiled bearings.
                  When powered directly from the bench psu, the fan takes ~0.7A on 12V. The current consumption is similar...
                  06-23-2025, 04:38 PM
                • Loading...
                • No more items.
                Working...