Recent content by bundyboy

  1. bundyboy

    Can I use a digital potentiometer/remote volume kit in a vintage Pioneer LX-424 receiver?

    I honestly don't like that option, I was thinking of putting everything in the receiver housing :cool:
  2. bundyboy

    Can I use a digital potentiometer/remote volume kit in a vintage Pioneer LX-424 receiver?

    Hi, thanks for the reply. hmm... I really dont know
  3. bundyboy

    Can I use a digital potentiometer/remote volume kit in a vintage Pioneer LX-424 receiver?

    Hi :) here:
  4. bundyboy

    Can I use a digital potentiometer/remote volume kit in a vintage Pioneer LX-424 receiver?

    Hello everyone, I'm hoping to get some advice on a modification for my vintage Pioneer LX-424 receiver. I'd like to add a remote volume control, and I've found a kit on AliExpress that seems promising. It's described as a "Double 100K/50K remote volume digital potentiometer" and includes tone...
  5. bundyboy

    Pioneer SX-424 - Speaker Protection Board

    i bought this: https://s.click.aliexpress.com/e/_ooP9MGt I hope it works well :D
  6. bundyboy

    Pioneer SX-424 - Speaker Protection Board

    Hi, Yes, I can try that. switch that I bypassed A, B, A+B, I think it does not have any circuitry on it it looks like this: also on other forum i found this:
  7. bundyboy

    Pioneer SX-424 - Speaker Protection Board

    when I turn on the receiver, I can hear pop in speakers. also sometimes when i turn off, also i can hear pop in speakers. from what i found, Pioneer SX-424 does not have Speaker Protection Board with delay. so I want to install some kind Protection Board with delay for speakers. with the aim...
  8. bundyboy

    Pioneer SX-424 - Speaker Protection Board

    Hi, I have Pioneer SX-424, and I want to buy Speaker Protection Board. But I dont know will it work ? I want to install a speaker protection module in my Pioneer SX-424. The module requires an AC power source between 12V and 24V. Does the power transformer in the SX-424 have a secondary...
  9. bundyboy

    Pioneer LX-424 - Need Help

    thank you all
  10. bundyboy

    Pioneer LX-424 - Need Help

    How long do I have to wait for the contact spray to start working? And do I have to turn the switch on immediately after spraying?
  11. bundyboy

    Pioneer LX-424 - Need Help

    I managed to solve the problem, the problem was in the switch where I select a, b, or a+b... now everything works, because I bypassed the switch, and connected the speakers directly. and now everything works. However, now I have a problem that when I turn on the receiver, I can hear pop in...
  12. bundyboy

    Pioneer LX-424 - Need Help

    Hi, I have tested Q15, Q16, Q17, and Q18 with multimeter, and they are fine. Of course, before testing, I unsoldered the legs from the transistors.
  13. bundyboy

    Pioneer LX-424 - Need Help

    Hi, i have tested, and i receive 25.6 volts and 13.8 volts. But I dont receive 40 volts. for some reason both fuses are blown in box 1.2 A x 2 from schematic. Why did that happen? Thank you
  14. bundyboy

    Pioneer LX-424 - Need Help

    Hi, Unfortunately I didn't explain it well. the left speaker worked normally, the right did not work at all. After that, I plugged in the headphones, then the headphones worked, but I wanted to find out if both channels worked on the headphones. So instead of the headphones, I plugged in a...
  15. bundyboy

    Pioneer LX-424 - Need Help

    Hi, can you download the schematic from here: https://elektrotanya.com/pioneer_sx-424_am-fm_stereo_receiver.pdf/download.html I downloaded it from here too. Yes, I have appplied the insulation between transistors and heatsink. I also cleaned everything before I put the new one in...
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