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    Manson HCS-3402 Failure

    G'day all from a first time poster.

    I've got a Manson HCS-3402 here that has been playing up, and then today failed.

    On start up it used to go through all the self tests OK, run for 30 seconds then power down. Yesterday, it ran through the self tests OK, then displayed ERR on the front panel.

    Today I powered it up, and got nothing. I tried again in preset mode, and it powered up, ran for about 60 seconds, then vented smoke. On the primary side, U2, Pin 4 looks more like a failed fusible link with D5 also looking quite sad. Mains fuse (as expected) also blown.

    Before I get too carried away, are the schematics readily available for this model? I did read through an earlier thread on the 32xx series and grabbed info from there, but quite a bit of difference between the models. I believe these are the same as the Peaktech 1575.

    Hoping that there is a chance of resurrecting this!

    Cheers.
    Last edited by Pom; 11-20-2018, 10:00 PM. Reason: Added OEM model number.

    #2
    Re: Manson HCS-3402 Failure

    Damage to U2 - Pin 4
    Attached Files

    Comment


      #3
      Re: Manson HCS-3402 Failure

      Originally posted by Pom View Post
      Damage to U2 - Pin 4

      You can get some here

      https://www.ebay.com/sch/i.html?_nkw...&ul_noapp=true


      https://www.jotrin.com/product/parts/TYN275PN

      They say that they take PayPal
      I would not recommend buying from them if they do not take PayPal

      That just me

      I would recommend that you check for shorts near and around that chip seeing how the pin burn off the chip

      Could you please post a wider view of the area around that chip thanks

      Here is the data sheet for this device

      Last edited by sam_sam_sam; 11-22-2018, 08:40 AM.
      9 PC LCD Monitor
      6 LCD Flat Screen TV
      30 Desk Top Switching Power Supply
      10 Battery Charger Switching Power Supply for Power Tool
      6 18v Lithium Battery Power Boards for Tool Battery Packs
      1 XBox 360 Switching Power Supply and M Board
      25 Servo Drives 220/460 3 Phase
      6 De-soldering Station Switching Power Supply 1 Power Supply
      1 Dell Mother Board
      15 Computer Power Supply
      1 HP Printer Supply & Control Board * lighting finished it *


      These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

      1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
      2 Hem Saw Computer Stack Board

      All of these had CAPs POOF
      All of the mosfet that are taken out by bad caps

      Comment

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