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circuit

  1. A

    Half of the lights not working - Yamaha CR-840

    Hi there, I replaced all of the bulbs and they were working for a bit but now the whole left side seems to have gone out. It is a lose connection somewhere but I can't figure out where. Anyone know where I should look to find the loose connection? Any help would be greatly appreciated!!!
    • ajiblock
    • Thread
    • circuit lights yamaha
    • Replies: 1
    • Forum: Yamaha
  2. V

    Thorens TD160 paired with Heed Orbit 1

    Hi this is Giacomo, from Italy: 220Volt country :-). I have been lucky enough as a friend of mine gave me a Heed Orbit 1 power supply unit (PSU) for turntables with 110V motor for free. Let's it's a gift. The Orbit 1 is different from its brother Orbit 2, as Orbit 2 is a plug-and-play tool...
    • Vanvim0207
    • Thread
    • 110v circuit heed modification motor orbit1 phase shift psu thorens td160 turntable
    • Replies: 16
    • Forum: Turntables
  3. goldswimmerb

    G-8000 protection circuit question

    I was looking at the schematic and wanted to ask if anyone with more experience in circuit design knew the answer to this. What are C35/C36 for in the protector circuit? They appear to go from ground to the amps output, through a resistor. Bipolar implies that Sansui expects + and - DC voltages...
  4. sean sweeney

    Pioneer SA-9500 ii rebuild protect thump fix!

    I've been dealing with this 9500ii thumping ever since I rebuilt the amp and recapped, from the protect circuit (also rebuilt with upgraded caps and transistors)! It seems the more efficient newer transistors in the protect circuit were staying on too long at shut down and coming on instantly...
    • sean sweeney
    • Thread
    • circuit fix modification pioneer protection sa-9500ii thump
    • Replies: 4
    • Forum: Pioneer Audio
  5. dankik

    Audio Caps for Recapping Vintage CD Player?

    I'm trying to determine if there is any advantage in using "Audio" caps (like Silmic II, Muse, etc) to recap the digital portion of a vintage Sony ES CD player (not the PS & analog circuits) vs 105 deg, low ESR caps. It would seem to me that there would not be any advantage to do this. Does...
  6. Bedri®

    Luxman L215 new PCB

    Hello I designed the Luxman L215 amplifier pcb according to my own requirements by taking advantage of its open scheme. It works healthy. I did not use the tone control circuit. I designed it in two parts as the supply circuit and the amplifier. Bias adjust 50mA I wrote the content by...
    • Bedri®
    • Thread
    • amplifier circuit diy pcb l215 luxman solid state
    • Replies: 0
    • Forum: Solid State
  7. vinylisfinyl

    Magnavox Astro Sonic Bass Control Packaged Circuit...what's inside?

    Greetings fellow Solid-Staters, and Happy Belated Thanksgiving! I'm working on my grandmother's Magnavox 1RP660 console stereo, chassis R204-18-20, and need some advice on how to proceed with troubleshooting a problem: When the four position Bass control is put into any of the positions below...
    • vinylisfinyl
    • Thread
    • astro bass circuit console control hiss magnavox packaged sonic
    • Replies: 3
    • Forum: Solid State
  8. Johnny_Law

    Harman Kardon 230A FM Board Curiosities

    So I decided to save this 230A. It got a complete re-cap (pending a larger main power supply cap, ordered the wrong size) and new bulbs and a bath. It sounds (mostly) fantastic. I'll post some pictures of the rebuild below. However, this wouldn't be as much fun without some mystery...
    • Johnny_Law
    • Thread
    • 230a board circuit fm meter harman kardon
    • Replies: 26
    • Forum: Solid State
  9. baretta

    Which circuits are the most complicated? Guitar amps, amateur radios or stereo receivers?

    And which are the least complicated?
  10. Trance88

    SL-QL1 Muting Circuit issue

    Hey everyone. I've got a bit of an issue with what I believe is the muting circuit. When the stylus hits the record, I can hear the music, somewhat muffled, coming out of just the left channel for a second until the sound fully engages out of both channels. When the stylus is at home position...
  11. G

    Philips 594 blows speaker fuses, fine with headphones

    Hi guys, A friend of mine recently brought me this integrated amp. It was about to be thrown out by the owner of a local bar, because both channels cut out one after the other. So I took it upon myself to try and safe this nicotine brown workhorse. Initial testing with headphones revealed...
    • Gertjan90
    • Thread
    • 594 circuit fuse headphones philips short speaker
    • Replies: 24
    • Forum: Solid State
  12. dlbraly

    Circuit Diagram

    Looking for a simple free circuit drawing program. Ive seen a few, but wanted to see if anyone has any comments. Any sugestions?
  13. dlbraly

    Circuit Software

    I did not see where to post this question... Looking for a simple free circuit drawing program. Ive seen a few, but wanted to see if anyone has any comments. Any sugestions?
  14. G

    Circuit Sansui ES200 (improved)

    As the title sais, i am looking for the circuit diagram of the ES200 crossover (improved version), or even a picture of the inside. (Sansui N200-03 it sais on the bottom) It seems that the crossovers in my speakers were busted (years ago) and I am certainly missing one capacitor (in both...
  15. M

    Technics SB-F1 - SSB12AB01 - Automatic overload circuit breaker

    Hello everyone, I have a pair of old cabinets from the thread title, and I noticed change in loudness on one of them. Closer exam pointed to circuit breaker that has increased resistance. So I guess I need a new one... I tried searching for the original part but, for now, I had no luck. I know...
    • minister
    • Thread
    • circuit fuse sb-f1 technics
    • Replies: 9
    • Forum: DIY
  16. bradscoolio

    Looking for DIY MM Phono Stage that sounds great

    Heya, I'm looking at building a mm phono stage. I'm happy to break out the ferric chloride for single sided PCB etching or just use a bread board. I'm not overly well versed in electronics, only year 12 VCE (A levels) physics electronics knowledge + soldering skills from other PCB projects that...
    • bradscoolio
    • Thread
    • amp circuit diy pcb phono schematic
    • Replies: 40
    • Forum: DIY
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