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help

  1. jFF_Bulbo

    SANSUI AU 7900, HELP!

    Hello AK'ers. I´m working on a AU-7900. before the recep: No short on DBT, no relay click After recap: No short on DBT, no relay click I recaped F2596 board, all 'litycs are new. All output transistors are new's, On Semi 93g/94g installed. Transistors TR601, 602, 603, 605 & 605 are new. Relay...
  2. S

    Pioneer sx 450 won't power on

    I'm having a problem with my pioneer sx450. It's flickering and won't power on. At first everyone said it was the power switch so I tried to clean it but then when I disconnected my speakers I could hear this crackling from the transmitter. I didn't think this was Normal but I wanted to confirm...
  3. L

    HELP Sansui MS880 Reviews and opinions please!!

    I recently got an offer for a Sansui MS880 here in my city. I'm thinking about buying it, since I really enjoy listening to old cassetes and CDs but I have no clue about how good this equipment may be. It's speakers are Sansui too. I would appreciate it a lot if someone could tell me what they...
  4. MB2021

    NAD 7240PE - No sound to speakers, headphones very faint.

    Hello all, I have been reading up on this thread https://audiokarma.org/forums/index.php?threads/no-sound-from-nad-7240pe.756209 I have made some progress from when I first started out. The issue is that the amp went silent suddenly, no magic smoke, no popping sounds, nothing. It just crapped...
    • MB2021
    • Thread
    • 7240pe amp help nad nad 7240
    • Replies: 5
    • Forum: Solid State
  5. S

    Sony gx99es HELP!!! Can’t reset equalizer presets

    Hi so I have a Sony gx99es and I accidentally set most of my preset equalizer settings to flat and would like to know how I can restore it to the factory settings? I tried holding down the power button for 5 seconds but it didn’t seem to work. Thanks in advance
  6. Dav3

    Motorola SH18N Tube Phonograph Restoration - a little help?

    I recently picked up Motorola record player in great cosmetic condition, not sure about the record player yet, and the amp is going to need a lot of work. I haven't played with one of these guys before so I'm hoping for a little help along the way so I don't destroy the poor thing. I've only...
  7. Crymoney

    Please help

    I currently own a pair of Epic CF-2’s and have the ability to pick up a pair of KLF-20’s. If anyone has owned both pair which one is the better speaker. I live on a island so these don’t come around often. Is there any big advantage to buying the 20’s or are they close enough that I should just...
  8. angelaudio

    I need a tweeter surgeon…anybody?

    I was messing around inside my Frazier Mark V’s and decided to pull the rubber cap off the back of the horn tweeter…bad Idea. I broke the lead to the negative voice coil winding. I tried to fix it myself but only made it worse. I had to lift the material covering the voice coil in order to...
    • angelaudio
    • Thread
    • broken lead help tweeter repair
    • Replies: 5
    • Forum: Speakers
  9. J

    KENWOOD JL-565 Speakers

    Going to check out a pair of Kenwood JL-565 speakers tomorrow, can't find any information about them so if anyone knows anything about them I'd appreciate any info or opinion about them, thanks!
    • JohnDoeAudio
    • Thread
    • help info jl-565 kenwood speakers vintage
    • Replies: 2
    • Forum: Speakers
  10. H

    Need help identifying today’s find.

    I found these speakers in a junk shop for $20 today. There is either an m or w on them. I suspect M because of the model number. One of the woofers needs to be refoamed and the other was recently replaced with a cheap radio shack 8 ohm. I have some others at home so I took a chance. The one...
    • Heresy76
    • Thread
    • help identifying mysterious
    • Replies: 8
    • Forum: Speakers
  11. Tyler Prock

    Seeking help with recording record to tape

    Restored pioneer sx 1010, Sony tc-160 serviced this week, nad pp2e mc phono preamp, thorens td 103a, ortofon quintet bronze cart. So I’m fairly certain I have it all plugged in right, nad phono preamp is in play back and the Sony tape player is in the rec from line out. When I got to play the...
  12. Bpscorn

    Snog, Marry and Avoid, except its HiFi and "Sell, Donate or Keep"

    Due to an unforeseen redundancy I have had to make a tough call and have decided to sacrifice some of my HiFi Kit to help ends meet. I do have an excess and that doesn't count the stuff I was planning on repairing. Because I'm still no expert I'd like some advice on what to keep for A: my main...
  13. C

    Any help is appreciated in my audio question.

    Good day everyone. I'm having an audio issue and I'm hoping someone here can point me in the right direction. My work is trying to create a live streaming setup I'm able to handle the video part and the streaming but for the audio, they want to use the already installed audio system in the...
  14. Ray122

    Marantz 4270 Help...

    Alright, so I've got a Marantz 4270 with a bad channel, spitting out DC and throwing it into protection mode. Only one of the output transistors was shot, I believe it was the one that handles the negative swing. Otherwise, all the semiconductors on the board and otherwise are testing OK. I can...
    • Ray122
    • Thread
    • 4270 amplifer help marantz marantz 4270 output drivers repair repair channel diagnostics repair help
    • Replies: 6
    • Forum: DIY
  15. redpackman

    Bose AWR1-1W Wave Radio - High Pitched Squeal in right channel

    The squeal is not affected by turning the volume up or down. I can hear the radio station playing but the high pitched squeal is very loud and makes it impossible to listen to it. The squeal is always there as long as the radio is on whether in AM, FM or Aux, high program volume or low...
    • redpackman
    • Thread
    • bose radio diagnosis help schematic wave radio
    • Replies: 1
    • Forum: Solid State
  16. sean sweeney

    HELP WITH MOTORBOATING IN SYNTH CIRCUIT... Crumar Orchestrator.

    I finally got this thing going last night... tons of work and it's a complicated little beast!! But while I had this circuit working for a short time, I swapped out a transistor and now I have some SLOW motorboating going on... that gets faster if I adjust certain parameters. I'm realizing there...
    • sean sweeney
    • Thread
    • crumar help motorboating orchestrator repair synth
    • Replies: 0
    • Forum: Solid State
  17. plresults

    Sansui SR 828 'Sub-weight' Specs?

    Does anyone have a SR-838 "sub-weight" that they convey the specs * measurements of it to me? Would like weight and dimensions, so that I can have one fabricated? I've gone to a wonderful Soundsmith Zephyr cart, which is heavier, and the owner's manual calls for the sub-weight if you can't...
  18. Tyler Prock

    Looking for a new low watt receiver any suggestions?? I’ve been looking at the sansui 350a

    Looking for a second receiver to pair with some herseys that have been modified with a more responsive driver and a dial in knob for the middle tweeters. Going in a very small space (my office) I’ve been looking at the sansui 350a but in a world where I can’t hear much of what I’m buying I would...
  19. J

    Nakamichi MR-1 Motor Doesn't Spin...

    I recently acquired a Nakamichi MR-1 that needed a new belt. Once I replaced the belt, the motor stopped turning entirely. I noticed when I first got it before installation of the belt, the motor was indeed functional. I can spin everything with my finger, so I don't think the belt is too tight...
    • Justin Hogan
    • Thread
    • help nakamiachi trouble troubleshooting
    • Replies: 2
    • Forum: Tape
  20. T

    Yamaha yp-d4 potentio meters?

    I have a yp-d4 that I have been working on for a while. I recapped it and cleaned all the pots but the turntable still isn't working correctly. I removed some of the pots out of the circuit and after this it worked fine at 33,3. I also got it to work a few times before after intense cleaning of...
    • TrevorBarten
    • Thread
    • help potentio meters repair request yamaha yp-d4
    • Replies: 2
    • Forum: Turntables
  21. sean sweeney

    Carver 1.0t Repair (variac issue? yes or no?)

    OK>>>> pretend I said TRIAC.... ugh... sorry I've done a fair amount of work on this, and did the complete MKII upgrade and attempted to set the bias and voltage, but the supply voltage came on at about 60v and then started to decline... I pushed the main voltage reostadt just a little and the...
    • sean sweeney
    • Thread
    • 1.0t carver fluctuating help mod power supply problem sag variac version ii
    • Replies: 2
    • Forum: DIY
  22. W

    need help cerwin vega 217r tweeter

    Hello I new to classic audio I have a pair of Cerwin vega 217r need tweeters for rear-firing and front tweeter does anyone know where I can get some on the back of the tweeter it says sh-10 with a 4 under it thanks
  23. Genxbrewer

    Returning to vinyl

    I have recently returned to vinyl after many years. I have a HK T45C w AT-12SA into a Pioneer SX-580 out to some Advent Baby II and Bose 2.2 in a 14x12 foot room. I would like to upgrade and add more power and better sound. I have about $600 to spend... any advice is welcome. Amp upgrade? Add...
  24. Will2225

    Need help diagnosing a problem in my set up

    Today I bought a new audio rack and after changing all of my equipment out I noticed a problem. The woofers on my recently refoamed Wilson watt puppy 3.2 speakers are moving in and out. I believe it might be my d sachs model 3 tube pre amp. I tried swapping cords (interconnects, power cords etc)...
  25. VintageDutch

    Sony SQR 6650 Power amp problems, need advice.

    Hi guy's Some might have read about it ... if not no problem... I restored a nicotine "Rich" Sony SQR 6650 It needed maximum cleaning, Full recapping, and and and and... I was happily test driving this super sounding receiver in 4 quadro mode.. up till (after four days of problem free playing)...
    • VintageDutch
    • Thread
    • help replacement sony sony sqr-6650 sqr-6650 transistor
    • Replies: 1
    • Forum: Solid State
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