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tuner

  1. Timothy Flath

    Nakamichi 630 Preamp/Tuner Restoration Project from Vintage System One

    Hello all. I noted there is really not much info out there on attempted restorations of the Nakamichi System One components. Thought I would start with the Nakamichi 630 combined Preamp/Tuner component. I recently aquired this system in trade for an amp I built and am tickled pink with how cool...
  2. pari57

    Tandberg TPT 3001 Help please

    Hello guys, I am working on a Tandberg tuner TPT3001 and I need some help. When I got the unit it was NOT working at all. The tuning wheel and the other parts of the tuning system were all stuck. The tuning wheel tip was completely corroded as well as its copper connection on the PCB. The...
  3. C

    Kenwood KR-5200 no stereo in FM

    Hello, I’m pretty much new to this so any help would be greatly appreciated. I have a Kenwood KR-5200 and I have no stereo in FM only and also no stereo light. I have checked the bulb and it is good and also I am getting great reception. It just doesn’t play in stereo when playing FM...
  4. G

    Pioneer SX-3700 tuner, excessive filtering

    Hello all. I hope I don't butcher the description of this but I have a Pioneer SX-3700 with an odd issue with the FM tuner: I see great signal strength indication however no sound coming out in the 88 to 94 Mhz range. It seems to me that with this quartz lock tuner that there me be an...
  5. P

    SX-737 tuner AWE-043 with noise in STEREO

    One of my SX-737 still makes a permanent static noise as soon as the stereo light comes on. The noise stops as soon as the Tuning needle leaves the center marking, or if I switch to MONO. The board has already got to light blue Sanyos together with some other caps and 2SA726 replaced. I...
  6. O

    Recap Advice

    Hello. I would like to ask your advice about the right model of Nichicon capacitor to renew my tuner. My question is the following. I would like to use the following type of Nichicon CAPs: UPW (alternatively UPM) for the Power Supply (filter caps after the rectifier bridge) UES for any...
  7. Bruno Primas

    Olson RA-580 Tube Tuner

    I started going through this tuner by taking inventory on the caps and resistors so as to replace them. One of these 5 watt resistors off of the filter cap has unreadable identifying marks and does not measure using a multimeter. Does anyone have the schmatic or value that this resistor could...
  8. K

    Kenwood/Trio KT-7000 AM not working, Tuning meter not moving

    Trio/Kenwood KT-7000 by kenmari posted Jan 20, 2022 at 12:37 AM I got myself this tuner practically for free. It came with a Technics amplifier. There are a ton of Japanese, surplus audio equipment where I currently live. The tuners that come from Japan usually only receive local stations...
  9. JB8

    PIONEER SX-440 FM Reception - Magic Loop?

    I'll keep this short! Picked up my first 440, cleaning it up, 90% of the lights were burnt out, etc. After replacing the lights I found the signal meter and stereo light to be responsive, but, even with an FM antenna attached I wasn't getting much action for either. Then when I touched the...
  10. N

    McIntosh MR85 Tuner

    Hello McIntosh Lovers, Happy New Year to all! I’m looking to see if anyone knows the manufacture dates for the MR85? I can’t seem to find this information anywhere. Im looking to acquire a newer MR tuner and the MR87 seems to be hard to find in the used market. Whereas the MR85 is available...
  11. A

    What is the best hi-fi tuner ever made?

    I drive a Technics ST-X901L, with an indoor cable antenna and, well, it sounds good. But surely there will be better ones, of higher quality. What are they? Another question, does it make sense to go from the ST-X901L to the ST-X999L. Thank you for your attention.
  12. quadmatrix82

    Marantz 125 tuner capacitor orientation

    Hello tuner experts I opened up my Marantz 125 tuner today to clean and change lamps and noticed two capacitors orientated the wrong way to the board - it works well and I recapped it many years ago I’m sure I checked the original cap polarity at the time but hoping someone can confirm if the...
  13. davstev

    Bogen BR-360 - A curious GW find

    Picked this unit up last night for $15.75 at the Goodwill. It was a diamond in the rough, covered with 50 years’ worth of fingerprints, grime and dust. I could tell that it was in decent shape, It powered up, with dial lights, and it was heavy and mega solid so I bought it. First thoughts...
  14. JB8

    Yamaha CR-420 Dead Tuner

    Picked up a CR-420 that initially tested fine across the board - tuner, phono, Aux, etc. But then the tuner stopped working all together - no led's, no signal meter movement, no sound on AM or FM. Now, it didn't just die, it kicked and screamed a bit, I thought it was dead, then it came back to...
  15. P

    Help…Pilot MC-4000a

    I just purchased this unit and know little to nothing about it. I’ve tested various functions (am, fm, tape, phonograph, speakers, power inputs), all of which work well. I did a simple google search to find out a little more like when it was made, what kind of unit it is (solid state etc) and...
  16. P

    SX-737 tuner AWE-043

    Hi Pioneer Friends, I got a working SX-737 still with original parts. It’s still running with the old parts and I plan a major recap and transistor replacement on all boards, except the tuner board AWE-043. That board seems a bit tricky according to Larrys post here...
  17. jahmadeus

    Accessing SX-1010 Tuner Board

    Hello all, I am finishing up a rebuild of my SX-1010 and only have the tuner board left to work on. I have noticed that it is tethered down by its wire wrap connections on nearly every side. I have had success with desoldering select wirewrap posts from the other boards to gain access. However...
  18. allanmatters

    Technics st-c04 digital display not turning on

    I will begin by saying I shorted something in the board myself as I was trying to find a way to cool down the D880 transistor. Let me explain: the tuner was working prior to this. The only issue with it was that it would run for an hour or so until the d880 transistor would get really hot...
  19. jpatti75

    Shorting Bar? - Motorola HK 45-2 Tuner

    Hi gang, What be the purpose of the shorting bar in this Motorola tuner diagram, and when is it necessary to move it to the Mono or Stereo position? Does it come into play when using a multiplex adapter for FM stereo? Ignorantly yours, JP
  20. Nervous_Dude

    Suggestions on first amp and/or preamp under $1,500

    Hey Everyone, New to the community and working to put together my first set up since having 'adult money'. I managed to get a pair of ADS L710 speakers and have a Fluance RT-81 turntable. Trying to pick the right amp/receiver to pair them with. I'd like to spend less than $1,500 on both the amp...
  21. waryan

    AdCom GTP-500 Tuner Issue

    Hi folks - I have an issue with the tuner in an Adcom GTP-500 from 1986. I searched the forum here and found some fantastic posts that helped me to replace CT104 (failed trimmer cap), though that only uncovered a different issue. I am able to scan and tune the expected stations with the repair...
  22. Moonwatcher

    Calrad tube tuner (c. 1965) with volume imbalance

    So this gutsy sounding little Calrad 202 tube tuner has a problem: the right side is far less gutsy than the left, and there is definitely a channel volume imbalance. Because I could immediately see that they were mismatched and not exactly what is called for on the chassis, I tried replacing...
  23. nimrod86

    Tuner locking off frequency - Technics ST-X302L

    Hi all, recently got myself a full Technics stack from the early 90's, and all is great with it apart from some annoying quirks with the tuner. I've got it connected to a good aerial in my attic, but it's getting quite weak reception on stations that it should be receiving well. I can make them...
  24. $Pioneer$

    Pioneer Stereo Tuner Model TX-9900

    Hello friends of good old hifi, actually i am looking for the schematics of Pioneer's tuner model TX-9900 (not the brochure!). I just bought that model in yahoo auction in japan and i probably will need the schematics for doing some repairs. Does anybody have any idea where to get the...
  25. K

    Starting my TX-9500 renovation project

    Hello fellow AKers, I'm finally starting to renovate my TX-9500. I just noticed the soldered-on shield plate at the end of the IF board. Of course there are electrolytic and tantalum caps to replace in that area! I would appreciate any advice on how to remove the shield, replace the caps, and...
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