Anyone has a schematic or service manual for any DSW-Micropro subs?

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  • GungHoeAudioDIYguy
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    Sent..
    I recently purchased 2 of these 1000’s and both have now lost powering up. Both fuses have been popped. One sub for sure made a large hummm to a buzzzz and then a large snap sound. I pulled the amp plate off this one and found that the 660045-1 board has a blackened area around the lower centre and also around the H4 Cap series pair of the power supply portion.

    Wondering I I could get any available schematics
    Of this ? Thanks in advance.

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  • SeleniumFalcon
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    Schematic sent..
  • mpitogo
    mpitogo Posts: 523
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    I own two Polk DSW microPRO 3000. One of them went bad in 2018 and I sent it off to https://edwardselectronics.net/index.html to get repaired and it worked great. It's still alive today. The other died some time after and it's still dead. Looks like they removed the Polk amps from their repair list either lack of clients or they no longer can.

    Good luck with your repairs.
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  • txcoastal1
    txcoastal1 Posts: 13,520
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    mpitogo wrote: »
    I own two Polk DSW microPRO 3000. One of them went bad in 2018 and I sent it off to https://edwardselectronics.net/index.html to get repaired and it worked great. It's still alive today. The other died some time after and it's still dead. Looks like they removed the Polk amps from their repair list either lack of clients or they no longer can.

    Good luck with your repairs.

    Not really mentioned on their site, but do they only repair subwoofers?

    I have a Sunfire TGA-7201 HT amp I need serviced

    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC

    erat interfectorem cesar et **** dictatorem dicere a
  • clhchew81
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    @SeleniumFalcon - Any chance I could get a copy of the schematics for the DSW-1000? Thanks in advance!
  • F1nut
    F1nut Posts: 52,357
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    txcoastal1 wrote: »
    mpitogo wrote: »
    I own two Polk DSW microPRO 3000. One of them went bad in 2018 and I sent it off to https://edwardselectronics.net/index.html to get repaired and it worked great. It's still alive today. The other died some time after and it's still dead. Looks like they removed the Polk amps from their repair list either lack of clients or they no longer can.

    Good luck with your repairs.

    Not really mentioned on their site, but do they only repair subwoofers?

    I have a Sunfire TGA-7201 HT amp I need serviced

    These guys repair Sunfire subs.
    https://www.ebcelectronics.com/?srsltid=AfmBOoqCilny2SM51eBrs_6Wopq7BDY16UmQUcmPaK1iSTw1lcly8BXR
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • SeleniumFalcon
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    Schematic sent...
  • 1958
    1958 Posts: 5
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    Good day! My search for a schematic to repair a Polk DSW1000 has led me here. It seems it has been a while since there has been a post, but I am hoping someone might have the schematic and also notice my post!
    Thanks in advice.
  • SeleniumFalcon
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    Schematic sent...
  • 1958
    1958 Posts: 5
    edited February 2025
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    Hi SeleniumFalcon, I see your message for 'Schematic Sent', but I can't seem to 'see it'. There is nothing in my messages or junk mail folder :-(
    Any chance of a re-send and maybe how I can get it please?

    Oh and so far I have found and replaced a bad 22mf 50v cap near the daughter board, (next to big caps), and found a bad sot-23 diode on the daughter board too.
  • SeleniumFalcon
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    Re-sent...
  • 1958
    1958 Posts: 5
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    Thank you for the schematic Selenium Falcon!
  • SeleniumFalcon
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    You're welcome, good luck with the repair!
  • 1958
    1958 Posts: 5
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    So the schematic is described as DSW2/3/4000 and when I look at the component numbers on the PCB like Q4, U1, U2, R22, etc they do not correspond with the schematic which has larger numbers like D600. Are you sure the schematic sent should correspond with the DSW1000 sub?
    Thanks again.
  • SeleniumFalcon
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    I'll check with a source at Polk.
  • SeleniumFalcon
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    I'm afraid the current engineering department doesn't have any additional information concerning that series. In all likelihood the differences between the various models are some of the EQ parameters and the output stages. Most of the remaining circuitry would be the same throughout. Hopefully there's enough information to enable a repair.
  • 1958
    1958 Posts: 5
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    Thank you SoleniumFalcon for checking, I will hopefully be able to take a closer look this week. What ever happens though I'll add a post about what I find.
  • captaincarp
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    @SeleniumFalcon I also have a DSW1000 in need of repair. Would you be able to send me a copy of the schematic?
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    Schematics sent...
  • nurik399
    nurik399 Posts: 2
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    Hello. I have a DSW3000 subwoofer. Power is not coming to the final amplifier. I would like to ask you for a shematic. Thanks in advance.
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    Schematics sent...
  • nurik399
    nurik399 Posts: 2
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    Thank you.
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    You're welcome, good luck with the repair.
  • vincentle
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    Hello - I also have a broken DSW micropro 1000.

    Can you send me the schematic?
    Thank you.
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    Schematic sent.
  • lehri_lala
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    @SeleniumFalcon I have DSW MicroPro 1000 that doesn't power up. Would you be able to share schematics? Thanks in ad.
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    Schematic sent.
  • jerrym120
    jerrym120 Posts: 2
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    Greetings, new to forum. My dsw2000 power supply fried. Need schematic for amp/ switching supply. Polk only had dsp board schematic. Thanks in advance.
  • SeleniumFalcon
    SeleniumFalcon Posts: 4,364
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    Hello,
    Welcome to the Polk forum. I'm afraid those are the only schematics provided by the vendor, sorry.
  • jerrym120
    jerrym120 Posts: 2
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    Thank you