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repair

  1. M50'sMike

    Velodyne HGS 18 Repair

    Hello everyone, I have a rather specific inquiry regarding the Velodyne HGS 18. I bought the subwoofer a few months ago, but there are certain frequencies that make the sub bottom out, (even with gain at less than one) which should essentially not be happening. Because there are lower...
    • M50'sMike
    • Thread
    • repair replacement servo servo control sub woofer subwoofer subwoofer amp subwoofer repair velodyne
    • Replies: 0
    • Forum: Home Theater & Video
  2. Lost Cause

    MC2105 Disaster! Help me Audiokarma, you're my only hope . . .

    First time poster, long time lurker. I'm hoping for some gentle guidance on resolving an issue with my MC2015. It has been an eBay/Covid disaster thus far. With no experience in electronic repairs, and limited tools, just using advice given others on this site I've actually managed to...
  3. MBuras

    Basket Case KA-7002 need some guidance

    I bought it cheap knowing it didn't have sound output. Didn't know until I got it that there were literally parts missing on the amp card and definite signs of being worked on. I've subbed in proper replacements where needed, making sure to check, recheck orientation and pinouts as needed. It...
  4. tonythetech

    KLH Model 20: Only Record Player Works?

    Hello all, I am new to audiokarma and been a long time viewer! Finally made a account because I can't find anyone else that has had a similar problem to my KLH Model 20. I need troubleshooting help with KLH model 20 that I recently picked up from a estate sale. Upon testing, nothing seems to...
  5. rugene

    What to do with this Sansui AU-666

    Hi audio karma dot org, Long time listener, first time caller, etc etc. About five years ago I decided to replace my Sansui 661 (bought refurbished from Hawthorne Stereo in Seattle) with something a little nicer and a little more powerful. I read a lot, I mean a lot of posts here and...
    • rugene
    • Thread
    • advent repair sansui speakers & amps
    • Replies: 7
    • Forum: Solid State
  6. JayPare

    Technics SA-160, power transformer output too high

    I'm in the process of bringing back to life a SA-160 only to help me improve my electronic skills. I think I'm pretty close to get it back to life (link to the main thread), but I'm worried about voltage too high from the power source circuit: Indeed, I'm getting -43 and +43V instead of -35.5...
    • JayPare
    • Thread
    • power transfomer repair technics voltage
    • Replies: 8
    • Forum: Solid State
  7. oftheclod

    Replacing a power switch on a Yamaha Ca-2010

    Hi all, I'm new around here but am looking for some direction, I found a Yamaha Ca-2010 on the curb and with some basic juking was able to get it working. That said, now it turns on and plays but won't turn off. I ordered a new power switch and these capacitors thanks to a users suggestion, but...
    • oftheclod
    • Thread
    • power & speaker switch repair switch yamaha yamaha ca-2010
    • Replies: 18
    • Forum: DIY
  8. T

    Kenwood KR-1000 Repair Question - New Tech, Need Opinion

    Hello Everyone, I hope I have posted this in the best place, but please let me know if there is a more appropriate location. I recently purchased a Kenwood KR-1000 aka the "Galaxy Commander". I owned one before and loved it, but it met a tragic end when I set an alarm and did not realize that...
  9. JHN272

    Inherited SS-TL5s - Need Help!

    Hey guys, new here, hoping I can get some help! I have inherited a pair of Sony SS-TL5 speakers (http://www.thevintageknob.org/sony-SS-TL5.html) from my late father. These have sat for years and years at my grandmother’s home (so dusty) and I finally got to take them home today. It was a long...
    • JHN272
    • Thread
    • help repair solved sony
    • Replies: 23
    • Forum: Speakers
  10. 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
  11. 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...
  12. 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
  13. 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
  14. 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...
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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...
  22. 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...
  23. 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...
  24. 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
  25. 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
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