Pioneer SX-850 No relay click

Discussion in 'Pioneer Audio' started by jwallace2011, Feb 28, 2011.

  1. tsd71

    tsd71 RIP Tom Petty Subscriber

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    Rebuild your power supply, I have attached a diagram I use to restore 850's. I use this successfully. There might be updates to transistors, hopefully someone more knowledgeable than me can expand on part numbers.
     

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  2. JohnDoe99

    JohnDoe99 New Member

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  3. JohnDoe99

    JohnDoe99 New Member

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  4. tsd71

    tsd71 RIP Tom Petty Subscriber

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    I made the image with the service manual and a photoshop editor, I do it for all Pioneers for reference when I'm working on a unit..Saves lots of search time.
     
  5. JohnDoe99

    JohnDoe99 New Member

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  6. markthefixer

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

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    once you put in the zener and q3, you could find out that q1 and q2 are zapped, there's little way to tell from what this thread reveals. The extra transistors cost LESS than one extra shipping charge.

    awr-101 rebuild notes, (never took the time to get it into a spreadsheet, sorry)

    AWR-101: C10: 470uF 80v ACH-038: 647-Upw2A471MHD 470uF 100v
    AWR-101: C11: 470uF 80v ACH-038: 647-Upw2A471MHD 470uF 100v

    or

    AWR-101: C10: 470uF 80v ACH-038: 680µf 80V 667-ECO-S1KP681BA
    AWR-101: C11: 470uF 80v ACH-038: 680µf 80V 667-ECO-S1KP681BA

    --------------- from my notes:----------------
    EchoWars: My own choice to replace the big three-legged caps.
    EchoWars: AWR-101: C10: 470uF 80v ACH-038: 680µf 80V P7494-ND (Digikey) goat67: (mouser) 667-ECO-S1KP681BA
    EchoWars: AWR-101: C11: 470uF 80v ACH-038: 680µf 80V P7494-ND (Digikey) goat67: (mouser) 667-ECO-S1KP681BA
    EchoWars: Mark, use these once to replace the originals,
    EchoWars: and the way they fit so solidly will convince
    EchoWars: you that when you have a cap with 10mm LS that
    EchoWars: needs replacing, look for a proper snap-in.
    EchoWars: Those tall radials with the stretched leads
    EchoWars: aren't near as stable, and with their size
    EchoWars: they need to be.

    EchoWars: Also, IIRC, those 1000µf 25V & 35V caps may
    EchoWars: have been something else entirely on the board.
    EchoWars: I think the last 950 here had a 2200µf 35V cap in that spot.
    EchoWars: I also seem to recall that it also was a 10mm LS cap,
    EchoWars: and I stuck another snap-in in that spot.[/QUOTE]

    ----------------------------------------------------------------------------


    AWR-101: C12: 1000uF 35v ACH-039: 1000uf 35v 647-UPW1V102MHD
    or
    AWR-101: C12: 2200uF 35v ACH-039: 2200uf 35v 667-ECO-S1HA222BA

    EchoWars: C12 667-ECO-S1HA222BA 2200uf 50v 10mm lead spacing snapin enlarge to 1/16 hole

    EchoWars: C13 667-ECO-S1HA102BA 1000uf 50v 10mm lead spacing snapin enlarge to 1/16 hole

    AWR-101: C13: 1000uF 25v CEA: 647-UPW1E102MPD6 1000uF 25v

    AWR-101: C14: 220uF 10v CEA: 647-UPW1V221MPD6 220uF 35v
    AWR-101: C15: 470uF 63v CEA: 647-UPW1J471MHD6 470uF 63v
    AWR-101: C16: 47uF 16v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C18: 47uF 50v CEA: 647-UPW1H470MED 47uF 50v
    AWR-101: C19: 47uF 35v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C20: 100uF 63v CEA: 647-UPW1J101MPD6 100uF 63v
    AWR-101: C21: 47uF 16v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C23: 100uF 35v CEA: 647-UPW1V101MPD 100uF 35v

    this is MattSD's list of caps:
    Power Supply Board (AWR-101)

    AWR-101: C10: 470uF 80v ACH-038, CEA: 667-EEU-FC2A471 470uF 100v
    AWR-101: C11: 470uF 80v ACH-038, CEA: 667-EEU-FC2A471 470uF 100v
    AWR-101: C12: 1000uF 35v ACH-039, CEA: 647-UPW1V102MHD 1000uF 35v
    AWR-101: C13: 1000uF 25v CEA: 647-UPW1E102MPD6 1000uF 25v
    AWR-101: C14: 220uF 10v CEA: 647-UPW1V221MPD 220uF 35v
    AWR-101: C15: 470uF 63v CEA: 647-UPW1J471MHD 470uF 63v
    AWR-101: C16: 47uF 16v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C18: 47uF 50v CEA: 667-EEU-FC1H470 47uF 50v
    AWR-101: C19: 47uF 35v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C20: 100uF 63v CEA: 647-UPW1J101MPD6 100uF 63v
    AWR-101: C21: 47uF 16v CEA: 647-UPW1V470MED 47uF 35v
    AWR-101: C23: 100uF 35v CEA: 647-UPW1V101MPD 100uF 35v

    and my list of semiconductors:

    AWR-101: Q1, Q8, Q9 2SD313 +51, +13.9 +5.4 series pass
    512-KSC2073TU npn to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.66

    AWR-101: Q3 2SC1318 pos suppl feedback and drive
    512-KSC2383YBU to-92 ecb 160v 1a .9w 50mhz 160-320hfe $0.17

    AWR-101: Q5 2SC1318 +36v series pass reg
    512-KSC2690AYS to-126 ecb 120/a160 1.2a 20w 155mhz 35-320hfe $0.40

    AWR-101: Q7 2SC1318 +28v series pass reg
    512-KSC2690AYS to-126 ecb 120/a160 1.2a 20w 155mhz 35-320hfe $0.40


    AWR-101: Q2 2SB507 -51v series pass
    512-KSA940 pnp to-220 bce 150v 1.5a 25w 4mhz 40-140hfe $0.62

    AWR-101: Q4, 2SA720 -51v feedback & drive
    512-KSA1013YBU to-92L ecb 160v 1a .9w 50mhz 160-320hfe $0.34

    AWR-101: Q6 2SA720 -19v series reg
    512-KSA1220AYS to-126 ecb 120/a160 1.2a 20w 155mhz 35-320hfe $0.39 (R=60-120, O=100/200, Y=160/320)

    AWR-101: Q10 2SC869 +5.4 darl driver
    512-KSC2383YBU to-92L ecb 160v 1a .9w 50mhz 160-320hfe $0.17

    AWR-101: ZD1 / D11 wz-140 14v 1/2 watt zener diode
    512-1N5244B Fairchild 14 V, 0.5W Zener

    AWR-101: ZD2 / D12 wz-130 13v 1/2 watt zener diode
    512-1N5243B Fairchild 13 V, 0.5W Zener
     

     

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  7. JohnDoe99

    JohnDoe99 New Member

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  8. markthefixer

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

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    you have alternative numbers if something is out of stock. I prefer the nichicon UPW caps for their ultra long life spec (10,000 hours or shorter depending on how small they get) versus 2000 on other manufacturers. You pay for it, but it's worth it.

    enough for tonight I have to get in some bench time before dawn and beddy bye..
     
  9. JohnDoe99

    JohnDoe99 New Member

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  10. Icman69

    Icman69 New Member

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    Mark

    What are the subs for the output transistors in the SX-850?
     
  11. tsd71

    tsd71 RIP Tom Petty Subscriber

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    2sb531 (pnp)
    mj21193g (pnp)

    2sd371 (npn)
    mj21194g (npn)
     
    Last edited: Jul 8, 2013

     

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  12. JohnDoe99

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  13. markthefixer

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

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    ??? without a speaker button depressed, the speakers aren't supposed to be getting anything at all. ???

    are the pre-power jacks isolated (not touching anything) ?

    is it there on zero volume (quiet) and what about when the pre/power jacks are removed, is it silent?


    maybe we should check the power supply voltages.
     
  14. JohnDoe99

    JohnDoe99 New Member

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  15. JohnDoe99

    JohnDoe99 New Member

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  16. markthefixer

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

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    pin 14 should be -51v, not -22v, somethings wrong...

    would explain the speaker pop when engaging...

    pin 13 at -13v is ok, so...

    check c20's polarity and q4's installation. Then report q4's voltages.

    IF q4 was mis-installed, at least do 6 way diode test before putting in or turning on, but if you have spares, just replace it.
     
    Last edited: Jul 16, 2013

     

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  17. JohnDoe99

    JohnDoe99 New Member

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  18. markthefixer

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

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    q2, q4 voltage readings, e,c,b on both (to ground)

    the rest of the caps ( all of (just) c21, and it's ok as proven by -13v...) won't affect them.

    don't beat yourself up (yet), the voltage readings will tell the tale...
     
  19. JohnDoe99

    JohnDoe99 New Member

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    JohnDoe99 New Member

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