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repair

  1. Timothy Flath

    DIY Restorations for Fair Use Cassette Audio Tapes

    Here are a number of Cassette Audio Tape repair, repalcement and restoration videos I have posted over the past couple of years hoping that some may be helpful to folks in the forums here. Thought I would start a thread to have them all linked in one location. Will start with my first one posted...
    • Timothy Flath
    • Thread
    • audio cassette repair replacement restoration tape
    • Replies: 7
    • Forum: Tape
  2. hippo008

    Pioneer SX-550 "POP" on startup and hiss at high volume

    Hello all, I just finished a repair of my SX550 I got for $25. After replacing some caps in the power supply, new LED lights, cleaning the pots and setting the bias it sounds pretty good! I am very happy with its turnout. I am having two persistent problems though, on startup there is a loud...
    • hippo008
    • Thread
    • help pioneer power amplifier repair reciever repair sx550
    • Replies: 1
    • Forum: Solid State
  3. Anonky

    Kenwood KR-790 issue

    Hi all, Picked up a seemingly rare bird yesterday. Kenwood KR-790. 130wpc. Crazy cool 80s front display, dark wood case. Looks like it belongs in a space shuttle. Condition is almost perfect albeit missing one of its four feet which I’m rigging up a makeshift replacement for.. At first it...
  4. A

    Infinity WTLC Repair

    I recently purchased a vintage pair of Infinity WTLC speakers in decent shape. They sound really incredible, but I noticed that one of the speakers is playing at a lower volume than the other. After switching the wires, outputs, and even repositioning the speakers, I'm confident that there's a...
    • AnimaMvndi
    • Thread
    • capacitors infinity wtlc repair
    • Replies: 6
    • Forum: Speakers
  5. Timothy Flath

    Yamaha CR-2020 Repair Project

    Hi folks Have started in earnest to attempt repairing a Yamaha CR-2020 that was completely dead. Started with the obvious Power Supply board issues that I have seen posted on YouTube and decided to start with a full electrolytic recap (except the large filter caps) of the Power Supply Board and...
    • Timothy Flath
    • Thread
    • cr-2020 power supply problem receiver repair vintage yamaha
    • Replies: 20
    • Forum: Yamaha
  6. T

    Yamaha TC-520 not able to record and play

    Hey there all, Hoping someone has a fix for this before I either: a) tinker this tape deck to death b) pay someone else to deal with it I'm trying to record some mixes from an external source, and for whatever reason, I can't get the record button to work while playing the tape forward. At...
    • Travis Kaupp
    • Thread
    • cassette record repair tape tc520 troubleshoot
    • Replies: 0
    • Forum: Tape
  7. T

    Lights replacement on receiver not working as intended ?

    I was working on a jvc vr-5505l receiver and it has this selector board with 2 rows of 4 lights on it. Basically all the original ones had disintegrated so I bought some modern day led light replacement not thinking much of it. However when I put those on they all lit up at once and the...
  8. T

    Sony ps x-75 biotracer Arm swings over de platter

    I just bought this defective ps x75 that doesn't cue and has an arm that swings over the platter before reacinh the correct position. The recordplayer hasn't arrived yet so I don't know if the arm controls are working but I wanted to create this forum in advance to see if anyone has experience...
  9. VintageDutch

    Repairing A Kenwood KR-44SL

    Hi Kenwood lovers. I picked-up a nice looking KR-44SL.. Yes yes the one with 4 Shortwave Bands, LW and Regular AM and FM. It was for sale in a Thrift shop and Cost me €35,-- Can't argue over the price. Tested it.. AM and SW where great... FM... very insensitive... no Stereo, no movement of...
  10. Anonky

    QX-949 repair

    Long story short I have a pioneer qx-949 with a weak right channel in stereo mode on AM/FM/phono inputs; there is essentially no bass output and treble sounds off too in the weak channel. AUX input works perfectly in stereo mode (no weak channel). To make things more interesting, when I flip the...
  11. Megaladoink

    Carver TFM-15cb Binding Post snapped

    I had a person ship a TFM-15cb poorly and one of the speaker binding posts snapped off. I really just need one but I may need the entire assembly. I tried Bob Carver directly through the website but no reply. Thanks, Chris
  12. Anonky

    Repairing realistic optimus 4s, a tweeter impedence question?

    Optimus 4s have a woofer two identical tweeters, each of the tweeters are 16 ohm. None of the tweets were working so I disconnected the tweets from crossover and none had continuity. Didn't appear to be a simple fix on any of them (broke tinsel lead, etc), so I've ordered replacement 8ohm 2 in...
    • Anonky
    • Thread
    • impedance optimus 4 realistic repair tweeter
    • Replies: 33
    • Forum: DIY
  13. perby

    Pioneer PD-4550 tech support :)

    Hey there friends, I recently acquired a Pioneer PD-4550 CD deck (10 bucks!) that is in near-perfect cosmetic condition. The problem is when I try to play a CD, it spins the disc twice then gives out. I took it apart to take a peek inside, and the lens was loose in the unit (but sources around...
  14. L

    Marantz MA-700 Monoblock Repair Help

    Hi, I've had a lot of MA-700 monoblocks over the years and they always eventually succumb to intermittent popping. This seems to be a common issue. This area of the P701 circuit board tends to get a charred look: Here is the whole board layout: Here is a schematic of the whole circuit...
    • Lee Hester
    • Thread
    • capacitors marantz repair transistors
    • Replies: 3
    • Forum: DIY
  15. F

    Harman Kardon hk 100m belt replacement help

    Greetings all, Sorry this is such a simple question, but I'm trying to get this done and I think i'm just about there! I picked up an hk 100m a few weeks ago. Great physical shape, but playback auto stops after a few seconds. Opened it up and poked around and eventually figured out the belt...
    • foofiebeast
    • Thread
    • belts cassette deck harman kardon repair
    • Replies: 3
    • Forum: DIY
  16. T

    Sony tps l2 defective microphone replacement ?

    So I have a tps l2 that's almost completely working again but suddenly the microphone stopped working. The only thing it picks up is if I blow into it or if i tap the microphone. I measured the resistance over the wires and on the connection on the board but all seem to be fine. I assume the...
    • TrevorBarten
    • Thread
    • first walkman help microphone old rare repair tps l2 vintage walkman
    • Replies: 0
    • Forum: Tape
  17. N

    Unjamming an immaculate Technics SL-5 (with photos)

    Hi all, first post! I find myself surprisingly expeled from Vinyl Engine [1] and instead of faking my way back in I've decided to turn a new leaf and start somewhere else. I bought a Technics SL-5 a few months ago which was advertised as being in perfect working order. This was close to true...
    • Neil Vine
    • Thread
    • linear tracking repair service sl-5 technics tonearm
    • Replies: 8
    • Forum: Turntables
  18. T

    Sony tps l2 recap?

    So I have been working on this walkman for a bit now and I replaced the rollers and the belts but the sound is wobbly or whiney. I wanted to try and recap the thing as a sort of last resort but the service manual doesn't really help too much. I could probably try and guess but the capacitors for...
  19. Kym Eden

    Restoring B200 SP1014

    Hi friendly audio people, I'm here to get some advice on restoring a pair of B200 SP1014 speakers. They come from Heathkit AS-9560 cabinets built by my grandfather back in '72, so something of an heirloom. The sound is mostly fine but I decided to give both the amp-tuner and the speakers a...
    • Kym Eden
    • Thread
    • b200 dope doping kef kef b200 repair
    • Replies: 0
    • Forum: Speakers
  20. L

    Need help identifying speakers (possibly Goodman's mezzo SL but idk)

    Hi all, First time poster, long time lurker So I've recently picked pair of used Goodmans speakers, sadly the tag on the back by the speaker connectors has gone missing. Now my problem is that I don't know what model speaker it is, I can tell it's a Goodmans as pictured on the front it has the...
    • Lord_Meow
    • Thread
    • goodmans repair secondhand speakers thrift store vintage
    • Replies: 0
    • Forum: Speakers
  21. J

    Help! screeching sound when playing tapes.

    Hello Audio Karma Forum, I am in need of some help. I am new to cassettes and music as a whole. I recently purchased a tape deck (Yamaha KX-332) in standard used condition and it works fine until when I was recording, I now hear a loud screeching noise that fades in and out. I have diagnosed...
  22. Anonky

    Restoring cabinet appearance on Realistic Nova 6s

    So I’ve got a pair of realistic nova 6s with some water stains and just generally faded wood stain. They’re otherwise in good condition. See the first 6 photos. I have the grills for both—I just had them one off at time of the photos. Anyways, what is the easiest way to go about restained them...
    • Anonky
    • Thread
    • cabinets nova 6 realistic repair wharfedale w60
    • Replies: 18
    • Forum: Speakers
  23. xchg.ca

    Are any of these transistors have to be replaced? ( HK CD401 )

    Hi guys, this is a list of transistor I have in HK CD-401 deck It suffers from low record/playback level I have found and replaced leaked caps ( 10mFx16V and 1mFx50V ) I also found that 2x2SC2878(B) in rec-mute circuit were partially opened all the time regardless of button ( at the moment they...
    • xchg.ca
    • Thread
    • cd-401 cd401 harman kardon hk low level repair transistor
    • Replies: 6
    • Forum: DIY
  24. xchg.ca

    Scrap Sony TC-K5 to completely restore TC-K60 or not ?

    Hi guys, Please help! I have dilemma: I love the Sony TC-K60 obtained for the price of latte, I have restored it as much as I can but it still have dicky Stop and Rewind button ( both quite wornof and one of the was broken and repaired ) If interested, can see my video under the post In...
    • xchg.ca
    • Thread
    • cassette deck help repair restoration sony tc-k5 tc-k60
    • Replies: 7
    • Forum: Tape
  25. zastin17

    Sansui Au-666 Error on Schematic PNP Driver/Output Transistors. "Correctly Drawn/Fixed"

    So I noticed an error on the AU-666 while tracing all my wires back throughout the entire amp. Based on evidence left behind, this was probably a revision Sansui never fully finished in the manual. They show the collector of the "TR813" 2SA537 driver transistor going to Pin 8 on the Driver PCB...
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