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repair

  1. MorrisonAgen

    Trouble with a Technics SL-1600 MK2

    Hey all! I’m working on a SL-1600MK2 for a friend, and I’m having an odd issue that I am hoping someone here has run into and solved. I have both 33 and 45 lights coming on simultaneously, and the platter is spinning back and forth erratically. I have re-recapped the motor board and the...
  2. scootsity5

    Allison Acoustics drivers

    Hello all I demod a pair of Allison CD-9s today, and was absolutely blown away by them. Unfortunately, I heard a bit of distortion (maybe rub between the voice coil and the Magnet?) in one of the mid drivers (it sounded staticy). Given their odd shape and design, I assumed those things are...
  3. T

    sony hp-210a repair help.

    I have a sony hp-210a all in one system that has some issues with the power amplifier section. 3 of the 4 power transistors are shorted to ground and the resistors directly in line with the top two got completely toasted. I ordered some replacement d291 transistors from alie and I am checking...
    • TrevorBarten
    • Thread
    • all in one amplifier blown output transistors help repair sony
    • Replies: 5
    • Forum: Solid State
  4. A

    Nikko QSR-4040 Distortion Repair

    I'm starting a new thread since it's been quite a while and want to start from the top. In summary I received this receiver which has distortion on both front and rear left channels, coincidence?, I have since re-capped it in an attempt to resolve the issue as I have done in the past. this was...
  5. S

    repair damage to vintage pioneer amp faceplate?

    Hi Does anyone have any ideas for touching up damage to my Pioneer SA-706? John
  6. T

    Beogram 6000 (4002) tonearm not lowering, after replacement transistor issues with oscillating solenoid.

    As per the title I have a beogram 6000 which previously did not have enough power to lower the solenoid. It did try but it would require help from me in order to actually finish going down. I read on a forum that it could have to do with the 1c23 capacitor or the arm circuit transistor. I...
  7. Refugee

    Dynaco Pat 4 preamp hum - Replace multi-cap

    Quick project: My Dynaco Pat-4 preamp started humming. I decided to change out the main filter cap in the power supply. I did not want to spend much time/money on this so I did not obsess on the purchase of a multi-cap that matched well as I usually do. I also did not use a terminal strip for...
    • Refugee
    • Thread
    • dynaco dynaco pat-4 multi-cap replacement pat 4 repair
    • Replies: 1
    • Forum: Solid State
  8. I

    Kenwood KX-1030 Speed change issues and Channel Distortion

    I got a KX-1030 recently and I changed the belts and upon testing I realised that the speed adjusts itself sometimes? it switches from slow to fast every once in a while by itself no matter how much I adjust it, and ontop of that my left channel has some like tape noise/distortion only heard...
    • isaaclora13
    • Thread
    • cassette channel issues kenwood kenwood kx-1030 repair speed change problem tape
    • Replies: 4
    • Forum: Tape
  9. ABJ2001

    1ByOne H009 Repair

    Hiya! Okay, so, I've had my 1byone H009 for just over a year, and the player is running slightly slowly, enough that it's noticeable and annoying. I've replaced the belt and oiled the spindal, so that leaves me with the motor as the culprit. I had a look and it's a generic EG530SD-3F motor...
    • ABJ2001
    • Thread
    • 1byone repair slow turntable
    • Replies: 9
    • Forum: Turntables
  10. I

    Linear turntable issue (Pioneer pl-L30)

    Hello! I’m newer to fixing record players and this is my first time trying to troubleshoot a linear player, looking for some advice . it’s a weird problem im trying to figure out , power indicator lights up , but will not respond to any buttons pushed. At first I thought it was a problem with...
  11. PaulBowman

    Infinity RS6 subwoofer Removal/Replacement

    My dad has a pair of Infinity RS6s from forever ago. I imagine they'd sound decent if it wasn't for the ring of foam around the 8'' woofer dry rotting. I've begun to take the speaker apart to re-foam or replace the woofer entirely (depending on which is cheaper and yields better results), but...
    • PaulBowman
    • Thread
    • infinity infinity rs 6 old components repair repair help
    • Replies: 7
    • Forum: Speakers
  12. Roman68

    The motor of the Philips AG 2230 turntable does not start. Help me please

    I ask for advice, dear inhabitants of the forum. I bought this turntable today, it looks great, but the motor won’t start. The power cord is not broken, voltage is supplied to the motor terminals. The lower bearing is lubricated, but the motor does not work.
    • Roman68
    • Thread
    • hifi motor philips repair turntable vinyl
    • Replies: 4
    • Forum: Turntables
  13. MartyGee666

    Marantz 2250 bias fluctuation

    Hey! I'm getting a wondering bias voltage across pins J708 & J710 (bias voltage). Its causing some annoying static and I'm not sure where I should look first. The unit has been re-capped and sounds great for the first hour, but eventually the bias fluctuates on the left channel and it throws the...
  14. R

    SAE MARK XXXIB distorted channel, then loud buzzing.

    Hey what's going on? so when I play music through the amp the left channel is distorted the right channel is clear. when I moved the amp, both channels went completely distorted and I had to unplug it, loud buzzing through the speakers and buzzing around the bad darlington area. I pulled the...
    • robc23
    • Thread
    • 31b amp darlington help mark repair sae transistor xxxib
    • Replies: 30
    • Forum: Solid State
  15. M

    Technics RS-TR311 Tape Deck not functioning properly

    This is my first time posting to the forums ever! I am kind of newer to this stuff, came into possession of a couple components and speakers a bit ago and just bought more stuff today. I bought a Technics tape deck today, it plays tapes really well but it doesn't properly rewind or fast...
    • MattTechnics
    • Thread
    • repair tape deck technics
    • Replies: 0
    • Forum: Tape
  16. analogwisdom

    Yamaha newbie A-700 resto thread

    Hey all. With the graciousness earlier this week I received an A-700 in need of some love. What's in the box?! :jump: He packed it extremely well, this thing was in there like a glove. Kudos on the great packaging. I'm gonna hoard the box and material to use in the future. :biggrin: I...
    • analogwisdom
    • Thread
    • a-700 recap repair restoration
    • Replies: 390
    • Forum: Yamaha
  17. toads

    Pioneer VSX-501 Repair Recap Advice

    Hello. I posted this in two incorrect spots first so hopefully I found the right board lol I own a Pioneer VSX-501 that was given to me by my uncle years ago. I use it in my living room for television audio and as a general purpose multimedia player and it's worked...
    • toads
    • Thread
    • pioneer repair vsx-501 vsx-511s vsx-52
    • Replies: 3
    • Forum: DIY
  18. A

    Nikko QSR-4040 Distortion Questions

    Hello AK users, I'm still working through my Nikko QSR-4040 quadraphonic receiver. I have gone through it; replaced caps, bulbs, cleaned controls twice, etc. However, when I got the unit it had bad bass distortion on both front channels, the rear mimics front in 2CH. I'll do more thorough...
  19. Mat86

    Replacing a headphone jack? (C-4)

    So long story short, last summer I tripped over a headphone cable, destroying both the headphone plug, cable, and the amp's jack. I was able to repair everything involved in the crash, using some krazy glue and baking soda to get the plastic housing back together. As you can see in the pics, the...
    • Mat86
    • Thread
    • headphone repair yamaha c4
    • Replies: 37
    • Forum: Yamaha
  20. W

    Attempting to fix my dads RFT k13ProfiL

    Trying to fix this speaker. Both drivers are working (tested them by holding the audio cable from my receiver directly to the contacts on the drivers) so i think there is a short on the pcb board. I know very little about electronics so it's hard for me to follow the path of current. I tried...
    • waxdaddy
    • Thread
    • broken pcb repair rft speakers
    • Replies: 6
    • Forum: DIY
  21. W

    Attempting to fix my dads RFT k13ProfiL

    Trying to fix this speaker. Both drivers are working (tested them by holding the audio cable from my receiver directly to the contacts on the drivers) so i think there is a short on the pcb board. I know very little about electronics so it's hard for me to follow the path of current. I tried...
    • waxdaddy
    • Thread
    • broken pcb repair rft speakers
    • Replies: 16
    • Forum: Speakers
  22. IgniFerroque

    SL-1700 mk2 shipping damage :(

    Good News: I got a free Technics SL-1700 mk2 Bad News: because the ebay seller shipped it loose in a box without a scrap of packaging and without the tonearm secured Good News: The platter didn't come loose and still spins quietly at the right speed. Bad News: The tonearm makes a creaking noise...
    • IgniFerroque
    • Thread
    • disaster ebay repair sl-1700mk2 technics sl-1700 mkii turntable
    • Replies: 4
    • Forum: Turntables
  23. F

    Need Audio Repair Nashville Tennessee

    Anyone know of any audio repair technicians near Nashville? I used Hi-Tech Service a few times but they closed a couple years ago. I have an SX-1250 that I'd like to get restored. Thanks, Chad
  24. razpones

    Boston G2 subwoofer

    Hi everyone While I was walking my dogs I came across a Boston G2 subwoofer speaker for car audio at the park. Someone most have taken it off from their car and dumped it. So I took it home not just to keep the parks clean (I find all kinds of stuff when I walk my dogs, it is amazing, some at...
    • razpones
    • Thread
    • boston coil repair subwoofer
    • Replies: 2
    • Forum: Speakers
  25. Szalbierz

    Sansui 9900Z Repair

    Welcome guys, i am reparing my Sansui 9900Z. I bought this Reciever some years ago on Ebay. On Power Amp. Board all drivers (Q7-Q11) and power transistors (Q1-Q4) were burned. Q12 and Q13 were fine, just like "kQFT1" (JFET x2). I decided to change all of them here is the list: Q1 2SC3858 Q2...
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