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repair

  1. S

    Tape Deck plays tapes extremely quietly

    Hi everyone. This is my first post to Audio Karma. A few months ago, my Kyocera D-611 stopped working. The symptoms indicated I simply needed a new idler tire. The other day, I finally got around to ordering a new idler tire. That seems to have solved half the problem and I have something else...
    • Smellycorpse
    • Thread
    • cassette cassette deck kyocera repair sankyo sankyo transport tape tape deck troubleshoot
    • Replies: 7
    • Forum: Tape
  2. T

    New member with a Marrantz 2250b

    Hi Audio Karma members, Thrash 50 here. I'm a new member, and this is my first post. I have Marrantz 2250b stereo receiver. I picked the unit up at a garage sale about 10 years ago for a great price, with quite a bit of other gear. This is the same model I treated myself to, as a high school...
  3. L

    H/K PM660 potential issues

    Greetings. I recently acquired a Harman Kardon PM660 amp and a pair of Hartley Zodiac 300's, but there seem to be a couple issues with the amp, so I wanted to address my concerns here. The first issue is that the H/K PM660 only outputs sound from the tweeters from the Zodiac 300's when only...
    • lnette
    • Thread
    • harman kardon hartley help question repair
    • Replies: 6
    • Forum: Solid State
  4. L

    Hello AK!

    Greetings! I have been scouring on eBay for a amp and speaker system for a while now, and ended up purchasing Harman/Kardon PM660 amp and Hartley Zodiac 300 speakers. I'm happy with the system so far! I decided to say hello here on Audiokarma because this forum has been a great help with...
    • lnette
    • Thread
    • amp harman kardon hartley hk pm660 repair speakers zodiac 300
    • Replies: 31
    • Forum: Introductions
  5. S

    Is there any noticeable difference between copper and silver solid core wire?

    Sorry if this is a dumb question, but I'm still a newbie when it comes to repairing stereo equipment. I'm tackling my first stereo repair job, and I accidentally unwrapped the wire-wrapped posts leading from the A & B speaker selector to the speaker output terminals. I heard that this is a big...
  6. DoctorJon

    Vintage Record Player Humming/Buzzing!

    Hello, I recently acquired what I presume to be a Sylvania Record Player from the 1950s. It plays records excellent without problems, however.... it has this buzzing coming from the speakers that can't be ignored when on medium/high volumes. It only starts when the record turntable is engaged...
    • DoctorJon
    • Thread
    • 1950s buzz fix ground hum noise phonograph record player repair vintage
    • Replies: 50
    • Forum: Turntables
  7. JayPare

    Technics SA-160 repair advise

    Hi all, I in the process of bringing back to life a Technics SA-160 I found at the thrift store for 5$. I'm repairing it for my personnal knowledge, so I'm thinking of selling it and give the profit as a donation to the website. Right now it's not powering on. I opened it and noticed the...
    • JayPare
    • Thread
    • amp repair ampifier audio repair repair transistor
    • Replies: 24
    • Forum: Solid State
  8. ageis1

    My first attempt at speaker repair, need help!

    Hi AK, I'm trying to learn a little bit more about speakers and how to repair them, so as a first project I've picked up some Technics SB-K22's that need some love. I'm sure these speakers aren't really worth fixing, but just doing this as a learning exercise. Before we get in, I am an audio...
    • ageis1
    • Thread
    • k22 repair sb speakers technics
    • Replies: 2
    • Forum: Speakers
  9. razpones

    jvc rx-503bk power, no sound

    Hello everyone This is only my second post here, why am doing this is, I am trying to learn but for the most part am not sure of what am doing most of the time, so i go by instinct. This time it is about a receiver that a friend bought out of Craigslist, a post Covid buy that was really hasty...
    • razpones
    • Thread
    • help jvc rx-503bk repair
    • Replies: 1
    • Forum: DIY
  10. M

    Denon DR-M44 control wheel chuffing on stop

    Hi, I have a new (to me) Denon DR-M44 cassette deck. All the controls work, play, FF, RW etc. but if I hit stop, or it the tape rewinds to the end and performs auto-stop, there is some back and forth chuffing of the "mode control" gear. It's turning slightly back and forth several times before...
    • mixographer
    • Thread
    • dennon help repair service
    • Replies: 7
    • Forum: Tape
  11. M50'sMike

    Dayton ultimax Driver Swap for Velodyne hgs18 advice

    Hello fellow AKer's! I have a Velodyne Hgs 18 that has some unique behavior. It seems to bottom out at specific low frequencies, even at low volume. But can handle much lower notes even at much higher volume. Me and AudioFreak71 seem to think it may possibly be the servo. Regardless, there's an...
    • M50'sMike
    • Thread
    • diy repair servo servo bypass subwoofer velodyne
    • Replies: 0
    • Forum: DIY
  12. Sugarwolf82

    Need Some Help with an Hitachi HT-460 Tonearm Lifter Switch Assembly

    Hello All, My Hitachi HT-460 has some broken switches that I was going to replace. Erroneously I did not take any pics of the innards of my TT before I started, cardinal sin I know. Now unfortunately for me, I'm not quite sure how the wire that lifts the tonearm is supposed to be put back...
  13. goldswimmerb

    The most blown up 170DC I have ever seen

    Mostly just posting this because I am impressed. Never seen one of these later Marantz designs blow up this bad. Anyone got any ideas? I am assuming everything is probably blown...
  14. KingKung

    SA-6300 repair, fuses blowing, both channels working

    Hi! Long time ago I got this beauty and it played wonderfully. But one day the fuses blew, I got new ones and they blew as well. At that time I upgraded my entire setup and let the Pioneer take a rest in the closet. Now I'm looking for projects to finish and this tickles my fancy. I don't...
  15. K

    How to remove a stripped hex screw on volume knob?

    I recently picked up a Sansui AU-D11 as a gift for my dad and it's all good except for the fact that the nut holding the volume knob is very loose. In order to tighten it I have to remove the little hex screw that holds it in place but it seems like the previous owner tried to get into it and...
    • Kevin6860
    • Thread
    • alternatives ideas? repair sansui sansui au-d11
    • Replies: 39
    • Forum: DIY
  16. C

    Restoration of Acoustic Research AR3 Speakers

    So I fairly recently obtained a pair of AR3 speakers that were in pretty bad shape and, with the generous support of members on this forum and a few other sources (more on that later) I managed to restore them to what I feel is a good representation of their former glory. I wanted to share my...
    • Cropper
    • Thread
    • acoustic research ar3 cabinet crossover diy recap refinish repair restoration speakers
    • Replies: 31
    • Forum: DIY
  17. O

    Music Hall MMF 2 subplatter frozen on spindle

    MMF-2-subplatter-spindle by Otto Mann posted Jul 11, 2020 at 10:22 AMHi all -- newbie here. I have a Music Hall MMF 2 (tag reads MMF 2, not MMF 2.1, 2.2, etc.) The belt was just slipping. Discovered the subplatter would not turn without notable effort. Removed subplatter and spindle (see pic). I...
    • Otto Mann
    • Thread
    • bearing help music hall repair spindle subplatter
    • Replies: 3
    • Forum: DIY
  18. K

    Acurus A150

    My recently purchased Acurus A150 has an issue. It appears that one of the channels is failing to transmit lower frees (sub 200 hz) to the speakers. Lots of troubleshooting has isolated the issue to one channel in the amp (swapping speakers, swapping preamps, swapping cables... etc.). While I...
  19. AlexHempel

    Beomaster 4000 Distortion and Nasty Hissing Noise

    So I'm repairing a Beomaster 4000 for a friend. After some work, I got it to bias correctly and went to play some music. The first time I listened, no major issues. I did notice that, after being turned off, it took a second or two for the music to fade out. I assume this is a function of being...
  20. vinylviola

    Glue for Polk LS70?

    Hi all - I scored a minty pair of Polk LS70's today. I'd never heard any of the LS before (huge SDA fan) but I'm pretty impressed thus far. I agree with what I've read on here about them - pretty directional and boomy bass, but we'll work on that later. For the moment, the issue I've...
    • vinylviola
    • Thread
    • glue polk audio repair spider woofer
    • Replies: 0
    • Forum: Speakers
  21. canuckken

    Peachtree iNova Died

    The title indicates the problem but I don't know where to go with it. I purchased the iNova and a Peachtree 220 power amp from the same seller a few months back. I was using the iNova as a pre with the 220 and it worked and sounded fine with one exception, I would receive an occasional...
  22. rocketrobo

    JDS Labs Element - DAC - how to open?

    I have a JDS Labs Element 1.53 DAC / headphone amp, it makes a bit of a scratchy noise sometimes. Taking the base off, it looks like there is some capacitor leakage under the board. I'm able to troubleshoot this, and to replace anything that needs it. Does anyone know how to open the unit to...
    • rocketrobo
    • Thread
    • jds labs element repair
    • Replies: 1
    • Forum: DACs
  23. R

    Volume drop on one side of headphones

    Hello, Is there a most-likely cause for headphones losing significant volume on one side? Suddenly I'm only getting about 30-40% volume on the left side. My diagnostic capabilities are limited to taking a multimeter to the plug, and I'm getting the same resistance reading from both channels...
  24. creator12

    Just got my first McIntosh! A MAC 4200 Receiver.

    Hello! Over the course of the last couple of years I have been split between two systems that were both primarily made up of Yamaha components. My first system at home contained a Yamaha R-100 receiver, K-2000 cassette deck, Genesis 1+ speakers, ADC Sound Shaper One Ten MK.II, and a Dual...
    • creator12
    • Thread
    • battery mcintosh memory new purchase reciever repair replacement setup tuner
    • Replies: 8
    • Forum: McIntosh Audio
  25. C

    KLH Model 6 silent tweeter

    Hello, First off I apologize if I'm putting this in the wrong area or messing up formatting, this is my first post haha. So I recently picked up a pair of KLH Model 6 speakers for $10. Physically they're good, no sign of abuse or anything. One sounds awesome, however the other's tweeter is...
    • cojobe
    • Thread
    • diy help klh model six repair
    • Replies: 10
    • Forum: DIY
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