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  1. redhills51

    Pioneer QA-800A

    Hi Mark, thanks for your response, my unit has the AWH-002, thanks for the info. I have the service manual that covers all 3 of the 800a units but only has the alignment procedure for the QM-800A , which has the AWH-015 amp board, oh well must of overlooked this manual edition.
  2. redhills51

    Pioneer QA-800A

    Greetings, I need to do a alignment on a QA800A and in the service manual that covers the QM800A and QA800a, it tells you about the procedure for the QM800A but the QA 800aA has a slightly different pin layout, some advise on what pins to use on the QA800A and the voltage values would be much...
  3. redhills51

    Wharfedale laser 300

    Greetings, does anyone happen to have a schematic of the wharfedale laser 300 crossover. Thanks
  4. redhills51

    Pioneer SA8100

    oh yes sorry about that, pin 6 -13.44, C5 neg leg -4.28.
  5. redhills51

    Pioneer SA8100

    I have not tested the 2690 yet
  6. redhills51

    Pioneer SA8100

    Pin 6 13.44vdc C5 neg leg 4.28vdc R26 Lifted 68.1 k ohm Q6 E0 B.045 C.045
  7. redhills51

    Pioneer SA8100

    with the unit in protection i have the following FOR THE ksc2690 E 00vdc C 35VDC B0.41VDC
  8. redhills51

    Pioneer SA8100

    Hi Mark, see picture, also in protection this is the voltages on the transistor E 000VDC C 35VDC B .041VDC
  9. redhills51

    Pioneer SA8100

    Hi sorry I am actually getting 0.vdc on base
  10. redhills51

    Pioneer SA8100

    Should I be getting 8.4vdc on the other side of R26, also my AWM027 is version D if that means anything
  11. redhills51

    Pioneer SA8100

    Thanks Easypoint, the KSC2690, is actually the one I have in there, have checked oriantation and is installed the wright way, I am getting 8.6 vdc on Base, 35.4vdc on collector, and 0.0v on emitter.
  12. redhills51

    Pioneer SA8100

    Right, so my old power supply had some issues, the PCB tracks were not exactly in great condition, so I got another one of Ebay in mint condition, All I have done with this is replace all the caps, and for now will leave it at that as after powering it up all the voltages are now what they are...
  13. redhills51

    Pioneer SA8100

    thanks for you assistance, i will revisit it later on in the week, back to work tomorrow, watch this space, will get there in the end.
  14. redhills51

    Pioneer SA8100

    Zener was faullty have replaced that and now I have + 13v on 16, and - 13v on 15, also pin 12 has jumped from - 9.2 to - 21.57, and FYI pin 19 is at + 21.49, meant to be 35v Unit has gone into protection now.
  15. redhills51

    Pioneer SA8100

    I will check the zener diode, I have a few KSA992s so could just replace it.
  16. redhills51

    Pioneer SA8100

    R2 on C7 side is -53.7 vdc
  17. redhills51

    Pioneer SA8100

    Hi, here are some numbers Pin 9 +51.7 vdc Pin 19 +21.09 vdc Pin 16 +12.59 vdc Pin 15 -.856 vdc Pin 12 _9.15 vdc Q2 C -52.3 B -9.82 E - 9.21 Q4 C -9.81 B -3.05 E -.830 For the R2 did you mean on the C7 side ?
  18. redhills51

    Pioneer SA8100

    Have checked AWF-006, all transistors Look like they are orientated properly, and no I only have -9.20VDC on pin 12, looks like Q3 and Q4 are also orientated ok on AWG-017 as well, these have been replaced with KSC1845FBU, I have the data sheets for the new trannys to make sure I got them the...
  19. redhills51

    Pioneer SA8100

    Hi Mark, thanks for your response, I do have sound but no control of Bass or treble even with tone defeat off, also dont know if this has any relevance but on the power supply on pin 13 I have -9.36 VDC as opposed to -24 VDC and on pin 14 -6.57 VDC as opposed to -18 VDC.
  20. redhills51

    Pioneer SA8100

    Hi, I have a little issue with my SA8100, after doing some transistor upgrades, the unit was going into protection, but for some reason it stopped doing that, but now I seem to have lost control of the Bass and Treble control, as in they don't do anything when adjusted. any suggestions as to why...
  21. redhills51

    Potentiometer

    Hi, can anyone tell me if there is a suitable replacement for the following Pioneer Potentiometers ACV-005-0 ACV-304-0 Been used in a QL-600A Thank you
  22. redhills51

    Akai x330/d

    Greetings, I have a Akai x330, and managed to get a original service manual, but when i was surfing the net on all things 330 or 330d i saw that there is also a Manual that is called PARTS LIST X300, my question is does anyone know where to get one of these or is there a digital copy anywhere...
  23. redhills51

    Pioneer SG 9800 Cracking sound

    Hi Haggy38, I too have a SG9800, dooing the same thing but on the left side, just wondering if you have solved this mystery yet, if I remove one LED it goes away and also if i remove one of the strap wires from its connector it goes away as well, although this will stop half of the sliders from...
  24. redhills51

    AKAI X330/330D or Roberts

    Greeting, Iam looking for the main power supply unit that houses the main power transformer for this unit, in particular the transformer, but the whole unit would be good, also with the multi voltage selector but not a big issue if not, any advise would be much appreciated, thank you.
  25. redhills51

    Akai x330 opinions

    Hi, I also have a x330, and doing a bit of a resto, one issue i have with it at the moment is that i am getting no response from the play, forward, and reverse switches, was wondering if anyone had a idea on why this would be happening.Thanks
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