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timc995
Prominent Collaborator I
December 10, 2021

 

TH16001 and TH16002.

Hi there, are these thermistors the same as they are in an playbar? In my playbar, the green thermistor are burned and I´m looking for the type.

SCK-054 or SCK-083 will work.  These limit inrush current, and either of these does that (they have 5 and 8 ohms of initial resistance).  The maximum amperage is 4A for the SCK-053, and 3A for SCK-083.  Either of these is more than enough current for a playpar.

    Shamudi
    Trending Lyricist I
    December 10, 2021

    Do you mean a SCK-054 or a SCK-053 with 4A? Anwalt,here in germany, I don't find anyone,  who sells one of them. 

    timc995
    Prominent Collaborator I
    December 10, 2021

    Do you mean a SCK-054 or a SCK-053 with 4A? Anwalt,here in germany, I don't find anyone,  who sells one of them. 

    I meant SCK-083.  Here is a datasheet for the series… https://datasheetspdf.com/pdf-file/924750/Microtherm/SCK-054/1.  Looks like an SCK-103 will work too.

    timc995
    Prominent Collaborator I
    December 10, 2021

    But sure… if you can find an SCK-053 (another manufacturer perhaps), then that would work.  I think you want the first two digits >=5 and the last digit 3 or higher.

      Shamudi
      Trending Lyricist I
      December 16, 2021
      I'm sorry, but I'm going to be stupid trying to find a suitable spare part.Can someone give me a link to a suitable spare part, e.g. at mouser or digikey?Many Thanks
      clpelema
      Lyricist III
      December 18, 2021

      readings at the pins. I thought I could not test this because when I power on the device it blows up. I 

      I have an educated guess about what is wrong with your device.  If you replaced the PWM and it still doesn’t work, then I’d check the two mosfet devices identified in these images.  Look for a short between the various pairs of pins (you should not find any 0V drops if you test the 6 combinations with a diode tester).  If you don’t have a diode tester, you can just remove the 2 components and see if the device boots up. 

      These devices are part of the circuit that is used to generate 36V power that is used to drive the amplifier.  It is only active when the device is actually playing music.  An otherwise working device will boot up without them, and will even play at very low volume.  After booting up without the 36V present, you won’t be able to turn up the volume, and the device will start flashing amber.  This isn’t permanent and it will go away once you replace the mosfets.

      When the time comes, be aware that the silver clip on the top can be a pain to replace.  It can be bent open with two sets of pliers so that it is just a bit narrower than the diodes it covers.  That will let it do its job and it will be much easier to replace.

       

      thanks! I found a short on the mosfet side, but to be sure, I also want to replace the schottky diodes on the other side… Do you have any idea on what replacement part to order for these? 

      timc995
      Prominent Collaborator I
      December 19, 2021
      I'm sorry, but I'm going to be stupid trying to find a suitable spare part.Can someone give me a link to a suitable spare part, e.g. at mouser or digikey?Many Thanks

      Either of these will work (both are in stock as of now)

      Mouser #: 527-RL4504-3.2859S54

      Mouser # 954-5D2-10LD

        timc995
        Prominent Collaborator I
        December 19, 2021

        thanks! I found a short on the mosfet side, but to be sure, I also want to replace the schottky diodes on the other side… Do you have any idea on what replacement part to order for these? 

        If you are referring to the pair of TO220 Schottkys mounted to the case, those are 10 Amp 100 Volt.  Part number SBR1010CT

         

        Emile dm
        Lyricist I
        January 5, 2022

        Hello, im from Germany and need your Help.

        These two capacitors are defective. do you know the data for these?

        TH16001 and TH16002.

         

        Thank You

        Max

        Hi guys, I own a connect amp that was plugged (by previous owner) in to 220v when switch was on 110 v.

        I replaced the fuse, replaced the TVR14241 (mov) and i noticed that the TH16001 also cracked. I could not source the Sck054 needed to replace this part in my local electronics store, so I hardwired it for now, and everything works perfectly. 

        Questions are:

        - with normal use (no power surge, no wrong voltage), will the unit get damaged if I keep it like that? 

        - is th16001 used in 220v setup, or is it for 110v only, and th16002 for 220v?

         

        If it will Increase the lifespan of the unit, i will order the SCk054 online.

         

        Thanks for this super interesting group discussion, got me already quite far!

        clpelema
        Lyricist III
        January 8, 2022

        thanks! I found a short on the mosfet side, but to be sure, I also want to replace the schottky diodes on the other side… Do you have any idea on what replacement part to order for these? 

        If you are referring to the pair of TO220 Schottkys mounted to the case, those are 10 Amp 100 Volt.  Part number SBR1010CT

         

        the short I mentioned was not correctly diagnosed. So No short is detected on the mosfet side. Schottky diodes also seemed ok after removing them.
         

        I build a dim light bulb tester, replaced the 10 ohm resistor, and removed the MOSFET’s and schottky diodes. When plugging the device in, the bulb goes full brightness. I am using a 53W bulb. Also plugged it in With the input/network card removed. Lamp still goes on… Owner told me the damage was probably caused by water as the amp was placed under a bathtub… Any thoughs? Not sure If the PWM is still ok But as I replaced it last month, it should be.

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