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  1. bushtech

    Denon AVR-1912 E2/EA

    Well, it's getting hot enough to shut the system down so I'm pretty sure even the fingertip test will make you say: Ouch!
  2. bushtech

    Denon AVR-1912 E2/EA

    Well, I am totally out of my depth here, but switch it on and start feeling the transistors on the heat sink to see which are getting very hot
  3. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    davenn is spot on with good advice. Thanks Dave. If you're up for a challenge or want to get into electronics we can carry on. Just a comment on your last photo: You have drifted away from point 2. Point 2 is over to the left on your photo. Above point 2 you see 2 big black cans (Capacitors)...
  4. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    Those two black cylinders with the purple rings are the 2 diodes and just to the right of them you can see two orange resistors. I cant see numbers on your photo but I'm pretty sure those are R118 and R119
  5. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    Yes, The red line is marked OR in the transformer which presumably stands for orange. Page 14 should closely resemble your actual circuit board layout so you should be able to find the 2 resistors from that.
  6. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    What don't you understand of my instructions?
  7. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    In the manual it's page 14 of 16. In the top left hand corner is the transformer. A red line leaves the top right hand side of the transformer and goes through R1. Follow that red line. It goes to point 2. From 2 go up through D11 and right above D11 is R118 and R119
  8. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    The schematic and circuit board do not look the same. Look in the manual for something like wiring diagrams showing the actual layout of the board
  9. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    To the left of your R119 is a line going up, follow it R21, C44, C43, R120 and R118
  10. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    St Edd "For your initial testing, you can use a length of pulled out Cat-5 cable strands or phone wiring . . . . or heck . . .just use that entirely." Also got a big roll of the stuff. If you use the cable as is, do you solder all the cables together at the ends, or how is it dood?
  11. bushtech

    Can I fix this old Pioneer SR303 Reverb myself?

    You sure both were positive + readings?
  12. bushtech

    1996 Fender deville deluxe 212

    This might give you some clues:
  13. bushtech

    Clarification of terms S:N

    Have to Hop:) Electronics history novel. Always read them
  14. bushtech

    Denon AVR-1912 E2/EA

    This is where your Android endoscope could be invaluable
  15. bushtech

    Denon AVR-1912 E2/EA

    Michael, please correct me if I'm wrong. I thought you were looking for an intermittent Aux L. Is Aux L an analog out. Is that now working?
  16. bushtech

    Denon AVR-1912 E2/EA

    Twist the PCB 'cage:) Sorry, couldn't resist that
  17. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Brilliant Thanks St Edd. As soon as I figure out what has blown and replace them as caused by my disastrous short circuiting I will get back onto this.
  18. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Wow St Edd, what a brilliant solution! I love your lateral thinking. I am sure the guys who wound my toroidal must have oodles of wire and hopefully what I need. Roughly what length of wire do I need? I will now approach Dr Google for assistance in how to design and build your own transformer
  19. bushtech

    Denon AVR-1912 E2/EA

    Meter's battery OK?
  20. bushtech

    Chinese Hiland 0-30V/Audioguru PSU build (down the rabbit hole)

    Thanks Audioguru Grrrrrr. Just caused a massive short between neg pole on big cap and one of the 0.33Ω resistors on the output. Damage control Will be back
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