Pioneer SX-1500TD reciever help

Discussion in 'Pioneer Audio' started by MadeMine, Feb 8, 2014.

  1. MadeMine

    MadeMine Active Member

    Messages:
    172
    Found 1 bad transistor so far. One of the 2sc497 on the OUT 1 side. Still working on taking the others out. Nice and easy. I see the 2sa497 is a PNP transistor it is good. I'll be getting new ones anyway. More to come..
     
  2. MadeMine

    MadeMine Active Member

    Messages:
    172
    Found another bad transistor, one of the 2sd218.
     
  3. budgetaudio6

    budgetaudio6 Addicted Member

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    5,762
    Hope you get it running. On mine the preamp barely makes sound, so i just use the amp side. Still has teh robust pioneer sound. And in my opinion it has a better sound then the M70 yamaha i use in the main system. but i like em all any ways...:)
     
  4. petehall347

    petehall347 the brandy coffee man

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    23,884
    Location:
    uk.. the middle bit
    did you ever get this amp working ?
     
  5. petehall347

    petehall347 the brandy coffee man

    Messages:
    23,884
    Location:
    uk.. the middle bit
    just want to correct you on this mark . the wires are actually test points for setting the bias .have had one in front of me for a few days now .
     
  6. Jube marsh

    Jube marsh Member

    Messages:
    58
    Location:
    Botkins, OH
    I'm having a frustrating experience myself. What did you find wrong with that side?
     
  7. vsat88

    vsat88 Like my Bluetooth ?

    Messages:
    511
    Location:
    Phenix City, AL.
    Its always nice when a thread turns out like this. It seems as if there are more on AK than less. You know, the ones that end without any clue if it was ever fixed. I guess I just do not get why folks ask for help then others come to help then....Nothing ..Whats up with that ?
     
  8. Awesomeaudio

    Awesomeaudio AK Subscriber Subscriber

    Messages:
    953
    Location:
    Sydney, Australia
    Mate, I was just thinking the exact same thing.
    I thought I'd have some pop corn and read this thread in it's entirerty.
    The guy gets half way there and then poooft !
    He dissapears on us. :yikes:
     
    Last edited: Sep 30, 2017
  9. MadeMine

    MadeMine Active Member

    Messages:
    172
    Got your PM Awesomeaudio, glad to give me a kick start on the ole SX-1500TD its was put a side as other things have come up but still intact on the shelf. I have to get those 2 transistors and start from there again. Sorry to leave everyone hanging. At the time I was working on this project I remember there was some bad weather and time got away. I'll start up again soon.
     
  10. petehall347

    petehall347 the brandy coffee man

    Messages:
    23,884
    Location:
    uk.. the middle bit
    just a word on this amp the pcb needs to be in its place for testing and all grounds connected .i tried extending the wires to work on one and it wouldn't play nicely with me .
     
  11. ranukic

    ranukic Active Member

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    111
    Location:
    Fox Valley, WI
    Hey, on your pic 005 what is the cap that is on pin 2 of the W13-026 board? And does it connect to pin 3 of W18-026? What one is the positive leg?
    Thanks,
    James
     
  12. petehall347

    petehall347 the brandy coffee man

    Messages:
    23,884
    Location:
    uk.. the middle bit
    if you mean the coupling cap c1 2.2uf plus goes to q1 base w13-026 . - to w18-026 pin 3
     
  13. ranukic

    ranukic Active Member

    Messages:
    111
    Location:
    Fox Valley, WI
    Sorry, I thought my reply would also bring the photos. Here is the pic that was posted, I doctored it up with my notes. That cap appears to be going from pin 2 to pin 3 my stereo is missing the cap so I need to replace it
    Thanks,
    James 66E770BD-1D5A-4238-BF9B-C23D2C59C3FF.jpeg
     
  14. Jube marsh

    Jube marsh Member

    Messages:
    58
    Location:
    Botkins, OH
    I just saw this message. Sorry I've been out of the loop.
    It looks like a filter for ground on the tuner board.
    I've been refurbishing this model and I'm working on my 6th.
    Because I don't have the equipment to adjust the tuner section I don't mess with it other than adjustments to the meters.
     

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