Miller 375 X-TREME Plasma Service Manual
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  1. #1
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    Miller 375 X-TREME Plasma Service Manual

    Anyone have a Service / Tech. Manual or Board Schematic For a Miller 375 X-TREME Plasma? Serial Number Range: LG130001P through LG190233P

    Need to Get the Value of R123 a Ceramic Power Resistor.

    Will be digging further but just removed the parts that had a visible catastrophic failure / damage

    Will Still need to find the failure that caused the Resistor to Go Nuclear!!






    Last edited by Contract_Pilot; 07-01-2018 at 05:09 PM.
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  2. #2
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    Re: Miller 375 X-TREME Plasma Service Manual

    Here Are My 3 Machines.. This Plasma Will Make a Welcome Addition..

    rs.jpg


    211... The K Bottle Gonna Break The Harbor Freight Cart hahaha...


    My Mini PCB Rework Bench.

    Last edited by Contract_Pilot; 07-03-2018 at 12:33 AM.
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  3. #3
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    Re: Miller 375 X-TREME Plasma Service Manual

    I was able to get a Schematic from Miller..

    Schematic PDF
    http://www.stevenrhine.com/wp-conten...tic-224975.pdf


    Here Are The Extracted Schematic Images







    Last edited by Contract_Pilot; 07-12-2018 at 07:17 PM.
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  4. #4

    Re: Miller 375 X-TREME Plasma Service Manual

    amazing

    Could you help me with this?

    Name:  Captura.jpg
Views: 265
Size:  53.7 KB

    I have one Miller Spectrum 625 X-Treme



    my problem is this diode CC3088A manufacture microsemi in the terminal 1 and 3 is reading short in the my board is the D40



    You will have some service manual for this model?
    Attached Images Attached Images   
    Last edited by homeromen; 10-10-2018 at 02:34 AM.

  5. #5

    Re: Miller 375 X-TREME Plasma Service Manual


  6. #6
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    Re: Miller 375 X-TREME Plasma Service Manual

    You may want to call miller and ask for a Schematic for that board. The board part no. & Rev should be printed on the edge you will need it when you call them.
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  7. #7
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    Re: Miller 375 X-TREME Plasma Service Manual

    Been a while but was waiting on the PTC R123 part Number (then got distracted) But, I did just today get a reply from Miller on the PTC it is a VISHAY (BC COMPONENTS) P/N: 2381-663-93025 VISHAY (BC COMPONENTS) P/N: PTCTL8NR100HBE so I will click go on the shopping cart Wednesday.

    Hope to free some time up mid next week and reassemble this been taking up way to much bench space.
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  8. #8
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    Re: Miller 375 X-TREME Plasma Service Manual

    Happy Halloween..

    All parts arrived.. total Costs $18.00 - $28.00 Ish. for the Fix..

    All Assembled see my blog for finial assembly and well the Result..



    Plenty of good conversation on this.

    Did checks on both 110 and 240V all good.
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  9. #9

    Re: Miller 375 X-TREME Plasma Service Manual

    Hi friend, sorry to bother you, i have been traying to repair mine but have not been able yet, mine is model 625, is there a way you can help me to get the diagram for my model, or do you know where can i call to see if i can get the diagram Schematic , thank you so much for your help in advance

    my machine is the miller spectrum 625 x-treme plasma cutter the problem is power light blinking The damage was in the bo igbts and INPUT RECTIFIER they have already been replaced P/N 252767C

  10. #10
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    Re: Miller 375 X-TREME Plasma Service Manual

    homeromen

    From the looks of the poor desoldering job above you prob damaged the internal layers of the board and may have to chase them out.

    What are all the parts #'s of all the transistors removed there will also be diodes that went if the IGBT's went.

    Left Hand side of the board you will have a part # and rev # call miller tech support be nice and they may e-mail you the schematic.
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  11. #11

    Re: Miller 375 X-TREME Plasma Service Manual

    Please, you could get me the manual of the Miller Spectrum 625 X-Treme plasma Cutter Schematic diagram 18v

    l call and been talking to Miller and they just sent me the technical manual. say that the Schematic can not send it

    some tip that you can give me is that the igbts are damaged of BOOST CONVERTER two IRGP50B60PD1 I changed the PFC REFERENCE GENERATOR UC3854DW and LF347M, and LM393D work a while after changing it then it is damaged the igbts by just turning on the machine without using it


    Thank you very much for your help
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    Last edited by homeromen; 04-18-2019 at 02:42 AM.

  12. #12
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    Re: Miller 375 X-TREME Plasma Service Manual

    Quote Originally Posted by Contract_Pilot View Post
    Happy Halloween..

    All parts arrived.. total Costs $18.00 - $28.00 Ish. for the Fix..

    All Assembled see my blog for finial assembly and well the Result..



    Plenty of good conversation on this.

    Did checks on both 110 and 240V all good.
    That machine isn’t cutting completely through what looks like 1/8” thick material.
    Jason
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  13. #13
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    Re: Miller 375 X-TREME Plasma Service Manual

    didn't see the work clamp, wonder where it was connected. might have been just the pilot arc or turned doen to 20 amps.

  14. #14
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    Re: Miller 375 X-TREME Plasma Service Manual

    Quote Originally Posted by snoeproe View Post
    That machine isn’t cutting completely through what looks like 1/8” thick material.
    This 375 cuts just fine.. I had it turned way down and was doing a 3 hand operation with a bad nozzle and clogged internal filter lol. When I use it next to build my pellet grill I will get a video of it on some 3/8 Plate.
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  15. #15
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    Re: Miller 375 X-TREME Plasma Service Manual

    You sir are a hero. I killed the passport plus i was trying to fix ages ago. Turns out it was a bad igbt driver. You give me hope for the next project!

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