pioneer sx 1010 problems

Discussion in 'Pioneer Audio' started by turbolite81, Mar 12, 2009.

  1. markthefixer

    markthefixer On Hiatus, dealing with Dad's estate full time Subscriber

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    pay attention to the size differences in the caps, it may be like trying to balance a bucket on a postage stamp.

    Stacked films have excellent high frequency characteristics due to their construction, it's just that they are honking huge - but have been getting smaller. They are bi-polar or unipolar and don't use electrolyte so they won't dry out.

    On the higher end units, Pioneer MADE room for them on the amplifier cards...
    so yes, if it fits, use it.
     
  2. turbolite81

    turbolite81 pioneer & vega nut

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    yeah im not shure if they will fit. i found some electrolytic replacements. can i bump from 25 v to 50v and run a 20% tollerance. the ones i found are at mouser and were considered high impedance capacitors. the only other options were low leak down at 10% but on back order. the ones i found were 647-upv1hr68mfd for c1 & 647-upj1h1r5mdd for c2
     
    Last edited: Sep 24, 2009
  3. markthefixer

    markthefixer On Hiatus, dealing with Dad's estate full time Subscriber

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    grumble......
    metallized polyester cap parts numbers for sx-1010 input:
    (choose ONE of each...)

    1.5uf

    5989-100V1.5-F Cornell Dubilier 100v $1.02 6.5 W x 18.5 L x 13.4 H 15mm spacing

    505-MKS21.5/50/10 Wima 50v $1.01 4.5 w x 9.5 h x 7.2 L 5mm lead spacing

    667-ECQ-E2155KB Panasonic 250v $0.91 9 mm W x 18.5 mm L x 16.8 mm H 10 mm lead spacing


    0.68 uf

    505-MKS2.68/63/10 Wima 63v $0.63 4.5 w x 9.5 h x 7.2L 5mm lead spacing

    5989-100V.68-F Cornell Dubilier 100v $0.67 6 mm W x 12.5 mm L x 11.9 mm H 10 mm Lead Spacing

    667-ECQ-V1H684JL Panasonic 50v $0.45 6.5 mm W x 7.3 mm L x 10 mm H 5mm lead spacing
     
  4. turbolite81

    turbolite81 pioneer & vega nut

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    thank's. i know im driving you guy's nuts,,,,sorry about that
     
  5. markthefixer

    markthefixer On Hiatus, dealing with Dad's estate full time Subscriber

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    That's the trouble with these type of threads, things get missed, or not hammered on strongly enough when the OP is distracted.

    Nuts? no - just research I either have done before and not saved, or put off doing. I'm learning to save EVERYTHING I do... in the right place in my system - sooner or later I'll need it again.... for youze guyz or myself....
     
  6. turbolite81

    turbolite81 pioneer & vega nut

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    Location:
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    i guess mine is an older unit. it runs (c1 .68), (c2 1.5), (c4 10),& (c8 330)
     
  7. turbolite81

    turbolite81 pioneer & vega nut

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    Location:
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    ok i dont get this. i am re capping my final board, (awg-027) control amp assy. on my manual and for what i have found on this site, the caps 49,50,51,&52 are supposed to be 47 uf 16v. the ones i just removed are 100uf 16v. what do i have going on here??? can i use the 47 uf????
     
  8. markthefixer

    markthefixer On Hiatus, dealing with Dad's estate full time Subscriber

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    Yes.

    Either one is fine in those positions, they are power supply RC filters, coupled with R59 - R62 (2.2k).

    There are always production variations in what actually goes in, what they started the design with, what the bean counters whittled them down to, and what the finally agreed to say in the service manual. To compound matters, you need an experienced eye to tell if those are original caps, or someone else's bright idea.

    In this case it doesn't matter (much).
     
  9. turbolite81

    turbolite81 pioneer & vega nut

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    thank you mark!!!!!!! i should be done with this beast tomorrow. woo hoo!!!:banana:
     
  10. turbolite81

    turbolite81 pioneer & vega nut

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    Location:
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    i want to thank everyone for their patience and help! this stereo sounds and looks brand new now. i could not me more pleased, thanks again
     
  11. ZeroJunk

    ZeroJunk Super Member

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    Congrats, glad you got it going. They sound about as good as anything, to me anyway.
     
  12. flatmap

    flatmap Member

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    Location:
    Racine Wisconsin
    Agree with ZeroJunk that this model sounds very nice. Terrific that you've put so much of your own effort into this to get it back in action.
     
  13. turbolite81

    turbolite81 pioneer & vega nut

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    Location:
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    im trying to find the matching original components now for this unit. i remember my dad had a set of bad ass 15" speakers with a lattice type grill and a wood case turntable, all bought at the same time in 74. does anyone have an idea what model #s they might be
     
  14. Tinitus

    Tinitus Active Member

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    Maybe a PL-12D or PL-71 TT and CS-99a speakers?
     
  15. turbolite81

    turbolite81 pioneer & vega nut

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    Location:
    fort worth texas
    i have noticed that this unit wants to kick off under a good bass hit at about 1/3 volume. that is with both low freq knobs set at +1. im pushing a set of cv at-15 speakers, they sound like they want way more but the unit wont do it. what i really dont get is that i had the unit up and it shutoff twice before i was able to get in the same room and then it played flawless. is there something going wrong or is this normall for this beast. now if i were to turn it up more after that, it does the same thing. on,off,on,off, so on and so forth. the sound is awsome at higher volumes and sounds crystal clear,but wont seem to go much more than 1/3,unless the bass is reduced to the negative settings. any ideas out there??????:scratch2:
     
  16. w1jim

    w1jim I can fix it but good... Subscriber

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    I haven't read through the entire thread but it sounds like the power supply can't deliver. If you didn't replace the big power supply caps now may be the time.
    JimB
     
  17. markthefixer

    markthefixer On Hiatus, dealing with Dad's estate full time Subscriber

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    Aren't these 400 watt 4 ohm speakers? That need about 150 watts to light them up?

    Sounds like you're running out of amp.....
     
  18. EchoWars

    EchoWars Hiding in Honduras

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    Sounds like the current limit transistors on the protect board might be kicking in...if your problem description (unit 'kicking off') means that the protect relay is opening up.
     
  19. turbolite81

    turbolite81 pioneer & vega nut

    Messages:
    116
    Location:
    fort worth texas
    ok so im just running out of juice then??? what i have found about my vegas is they are 4 ohm and have a wattage rating of min 5w and max 400w. i only run the 2 speakers. i knew for shure id cook something if i tried to add a rear section
     
  20. turbolite81

    turbolite81 pioneer & vega nut

    Messages:
    116
    Location:
    fort worth texas
    my speaker select switches are starting to fade and get staticky again. i used the deoxit d5 followed with the g5 multiple times during the rebuild. do i need to repeat that process a few more times for perfection or do i need to r&r the switches? if i do need to replace the switches are there any sugestions on where to go
     

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