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AsRock
AsRock
Member
Last Activity: 03-02-2018, 04:13 PM
Joined: 03-15-2016
Location: PA
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  • AsRock
    started a topic After a good DAC

    After a good DAC

    With so many available out there these days it's pretty hard to pick one, how ever my budget is $200.

    Plan to use it with my EEEPC to my Yamaha RX-V1050 which i use as a pre amp and a NAD T753 as the amp.

    I can list the OPamps used by these if needed.

    Requirements:

    Phono output
    USB input connection

    Kinda worried about getting one and sounding flat or even small headphone like sound.

    A couple i have had my eye on

    ES9018K2M ES9018 + XMOS XU208 HIFI DAC USB DSD audio
    [url]https://www.ebay.com/itm/ES9018K2M-ES9018-XMOS-XU208-HIFI-DAC-USB-DSD-audio-PCM-384-Compatible-Amanero/132256285929?ssPageName=STRK%3AMEBIDX%3AIT&var=431587173220&_trksid=p2060353.m1438.l2649[/url]...
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    Last edited by AsRock; 01-30-2018, 03:59 PM.

  • Re: Marantz SR4320 very distorted channel




    Been there done that with the jumpers lol, Good to hear you fixed it. ...
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  • Re: Marantz SR4320 very distorted channel

    That dark crap what i think it is ?, isn't that the stuff that goes conductive ?, if so might be under the cap(s) too.
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    Last edited by AsRock; 12-20-2017, 05:38 PM.

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  • AsRock
    replied to NAD T753 revisit
    Re: NAD T753 revisit

    Hi, i was just saying that their was a good chance of having the parts you needed, although not until later noticing you in Spain. Shipping though NAD is like $20 even for a diode which each Zdiode was around $3.30 a pop which i ended up getting mine of Digikey for about $0.40 a piece + $5 shipping which worked out much cheaper.

    Well i did get around in replacing all but one cap, as i later found was coursing a buzz in the speakers so i ended up removing it.

    Only reason i suspected this cap was due to design, not noticing when...
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  • Re: Yamaha RX-V675, No sound




    Yes that would not surprise me, seems to be a common issue with AV HDMI devices and typically due to heat.


    In some cases people have heated up the DTS chip to get it working, replacing it will not be any fun at all....
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  • Re: Yamaha RX-V675, No sound

    You tried going though the diagnostic options and see if that picks any thing up ?.

    I would check the front panel for dry joints, would all so check if analog and digital are effected though different rear ports too.

    I cannot really help you but thought i would try at least.
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    Last edited by AsRock; 12-08-2017, 04:05 PM.

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  • AsRock
    replied to NAD T753 revisit
    Re: NAD T753 revisit



    Cool, although the host i have never had lost pictures over many years now, but you never know right!.

    Better be safe than sorry, as it's very annoying when your looking for some thing and the picture is either missing or hosted on data limited site.

    should have my caps on Saturday.

    Noticed another thread on a T753 on here it's a shame as i missed that as i actually had the parts he was after....
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    Last edited by AsRock; 11-22-2017, 03:10 PM.

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  • AsRock
    replied to NAD T753 revisit
    Re: NAD T753 revisit



    Well that was the idea and just replace, i have actually ordered all the caps to be replaced close as possible to the originals as possible.

    Personally i think the Samzon caps are really good with near rated uf and 0.02 Ohm esr readings. But when this unit was repaired i was seeing 75c temps which is why i flipped the transistors. which has improved the area temps of around 44c. But i do not know how long those caps have been under that heat so was just thinking better safe than sorry.

    What failed originally was...
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  • AsRock
    replied to NAD T753 revisit
    Re: NAD T753 revisit

    Well i will try to be clearer what i am trying to find out.

    For example one of the capacitors in question is a Samxon KM series 35v 20% 105c, this cap is on the main\ power board for the unit. Which has a ripple current of 1808.

    Was thinking of replacing it with this [url]https://www.digikey.com/products/en?keywords=UKA1V332MHD[/url]

    Would this be ok ?,Re: NAD T753 revisit<br /> <br /> ...on is a Samxon
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  • AsRock
    started a topic NAD T753 revisit

    NAD T753 revisit

    Hello all, i got a NAD T753 some time ago and got it up and running though a lot of time and effort.

    Well once i got it working i did a few changes and was thinking of improving them ( pictures be added at the end ). And was thinking of just swapping out all the capacitors on the main board, i have the service manual for the actual version which is pretty detailed and i have found specs for the caps to replace.

    Reason i am planning to replace them with new is that before i made the changes most were put under a lot of heat which must of done them any good what so...
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  • Re: Need some 12000uf 80v capacitors



    Yeah i have seen those, was hoping to find some thing better....
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  • Need some 12000uf 80v capacitors

    Hello i am after some 12000uf 80v caps, the Samxon's ( LP ) in my NAD T753 are totally messed up one rattles and the other seems to be bulging.

    Pin spacing is 3/8ths

    It's ripple current that's making it harder to find, temp 20c-45c=1.37, 65c=1.25, 75c=1.75 and 85c 1.0

    Max height 2 inches 2\8ths

    I have been in touch with NAD and they want $20 per cap + $20 shipping for the same caps, kinda hoping to find some better more respected caps for that.

    Thank You, if you need to know any other specs of the Samxon caps let me kn...
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