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tuner

  1. J

    Kenwood KR-V7010

    Hello guys, recently got Kenwood KR-V7010 Receiver, everything works on it except the tuner. There's very weird issue with it. When I'm not on station frequency I get the normal distorted sound, when I'm near a station frequency I can hear the station distorted (as expected) but when I go to the...
  2. ChopperChas

    865Hz tone from my Pioneer TX-D1000

    I've got a really loud, annoying 865Hz tone on these two stations, but only on this tuner. I don't hear it in my car or on any of my analog tuners. It's in the bottom quarter of the FM band and the entire AM band. I don't hear it at higher FM stations. It's obviously coming from this tuner, as...
    • ChopperChas
    • Thread
    • digital pioneer silver face tuner tx-d1000 vintage
    • Replies: 0
    • Forum: Tuners
  3. caxton1476

    Troubleshooting request: Pioneer Tx-6800

    Got a Pioneer TX-6800 for basically nothing. Wasn't able to test before taking it home and was willing to give it a shot, hoping to use it with my Sansui AU-555a. Maybe I got what I paid for? Anyways, it produces a hum or buzz through the speakers when I connect it to the Sansui. In fact, that...
  4. Richard P

    Sansui 5500 No Stereo, Clear Mono

    I'm working on a Sansui 5500 receiver and am having an issue with the FM Multiplex board. I get good FM reception but no stereo. I have a good 19 kHz, 3 Vrms signal after TR402 and a 38 kHz, 1Vrms signal at the base of TR403 but no 38 kHz on the collector of TR403. DC voltages around the...
    • Richard P
    • Thread
    • 5500 mpx multiplex sansui stereo stereo separation tuner
    • Replies: 45
    • Forum: Tuners
  5. PE9ZZ

    Dead MR78 on my workbench

    Just joined the ranks of McIntosh owners by receiving an MR78 tuner off Feebay. High on my want list for a long time. Got it from a German seller for €575 inklusive Versand. It was sold as defective. I opened it up and found the transformer still wired for 120 V. I quickly changed it to 240 V to...
  6. mbphotox

    Replacing 2 diodes/bulbs in my CT-710 Yamaha

    The two bulbs in the FM quality windows went out and I'd like to replace them. (FM radio has been shut off in my country, but I'm using the CT-710 as a decorative piece now) This is my beauty the bulbs in question: 4mm in diameter, fitting straight into those rubber rings above...
    • mbphotox
    • Thread
    • bulbs ct-710 illumination lamps lightbulbs tuner yamaha
    • Replies: 4
    • Forum: Tuners
  7. G

    Sansui 210 tuner issue

    I have a Sansui 210 receiver, which works fine, except for the fm section of it. It only produces static, and the signal meter is always between 4 and 5 (almost max). It does move ever so slightly when I move the dial, however the tuner only produces static. AM works well. I have changed the...
    • GCas
    • Thread
    • fmradio receiver sansui210 tuner
    • Replies: 1
    • Forum: Tuners
  8. D

    Seeking help obtaining a service manual - sources?

    Hello guys, currently im need to source service manual for my Technics ST-5 tuner where i found some of the caps are already bit leaky :thumbsdown: , i did my homework and searched world wide web but only found the manual on hifiEngine where i dont have access anymore. Also looked on...
  9. A

    Marantz 2015 disable tuner to troubleshoot?

    Hey guys! I have a little Marantz 2015, which smells like burnt electronics when I run it - I recently recapped the preamp because of a failed cap, and it plays beautifully (from aux) and has very little noise. The phono amp seems fine too, which leads me to suspect the tuner, which doesn´t...
    • artrr
    • Thread
    • marantz 2015 smell troubleshooting tuner
    • Replies: 1
    • Forum: DIY
  10. P

    Arcam Alpha 3 Tuner - Won’t power on

    Hello. I recently purchased an Arcam Alpha 3 tuner. It was not powering on arrival so got a refund, but can’t bring myself to get rid of it! When plugged in the power button does nothing, no lights or anything. I’ve checked the plug fuse and internal fuse, both fine. I checked the power...
  11. P

    Tuner whistle noise in FM

    A high pitched noise just started with FM in SX-980. Sound frequency is 4.468 kHz. Starts after running normally for between 5 and 30 minutes. I am going to be checking the FM path for signal and voltages but maybe someone has an idea what this is? thanks! audio via youtube. frequency...
  12. Carbsandcaps

    12au7 in place of 12at7 in tuner

    I’m up to my eyeballs in 12au7’s. There’s alot of tuners and receivers out there that use 12at7’s in the fm mixer/ oscillators. What happens if I put a 12au7 in place of the 12at7? Yes I’m aware that I can get a 12at7 for $10 but I’m just curious what happens.
  13. S

    Dial cord question

    I have a stereo receiver with a tuner knob that is very hard to turn. Upon taking the receiver apart, the string is way too tight and makes audible high pitched noises when plucking it. I cant seem to find any adjustments anywhere. Does anyone know how I could loosen it? (i will be taking...
  14. V

    Recapping and FM tuner station issue on Technics SA-5360

    Hello everyone, I had recently purchased a Technics SA-5360 Stereo amp tuner from eBay. This was after a long break since 2019 I took from my vintage electronics hobby. I used to mainly collect and restore tube based tuners and amps, but recently it has become quite expensive I noticed...
    • VTGCollector
    • Thread
    • amplifier capacitor technics tuner
    • Replies: 5
    • Forum: Tuners
  15. Carbsandcaps

    MPX 19khz amplitude question

    I was wondering if anyone knows at what amplitude the 19khz tone has to be at to “activate” the mpx. I’m trying to get a relay to work in a fisher mpx unit but I can’t get a good mpx signal where I’m at so I’m using a signal generator. I can get voltage at the relay coil but it’s varies pretty...
  16. Carbsandcaps

    Not a good 6aq8 substitute.

    Looking for replacements for a pair of 6aq8 tubes in a kenwood tuner, I turned to the internet. I found a 6ev7 under a list of suitable replacements and they’re considerably cheaper. Well not so much. It works however it shifted the all the stations 30mhz up the scale! Anyway hopefully anyone...
  17. Carbsandcaps

    Kenwood tuner confusion

    I just picked a kenwood kw-100g tube tuner and it has this “stereo monitor” option. I don’t really understand the instruction. When it’s in stereo monitor there’s some static and the station can be heard faintly. Is this a very overcomplicated way to test the multiplex signal instead of a simple...
  18. jisake1

    ALIGNING TUNER - TEST EQUIPMENT CONSIDERED?

    Considering options to best align a KENWOOD KR-4140 as manual specifies. First job I worked in a Montgomery Wards service center. Was laughable when you opened a tuner sold then which came with a steel weight inside. Was installed only to make a customer think they had a large power supply. :bs...
    • jisake1
    • Thread
    • alignment kenwood kr-4140 tuner
    • Replies: 12
    • Forum: Tuners
  19. M

    SX-1250 Tuner board.. oops

    Hi everyone, I revived my very sick SX-1250 using the rebuild kit sold by Peace Love and Music. This is a kit for ALL electrolytic caps, and quite a few transistors and diodes. Good news... The Amp is fine. Both channels sound equal and clear. The phono board is fine...
  20. F

    Diagnosing old Sansui

    First off I'm new to the site, glad to be here . I tried finding somewhere on reddit that could help me out but I figured here would net me better results. Tldr I was cleaning out aunt's shed and stumbled on this old Sansui 9900z that she ended up giving me and now I'm trying to get it...
  21. woodie63

    Building my system Amp/Tuner advice please

    Hi all, longtime vinyl hoarder here finally hoping to build a decent setup to take me back to my youth! I have just picked up a pretty mint Thorens TD 150 mkII which for sentimental reasons is going to be the TT (My Dad's TT when I discovered music in the 70s) Now looking to get a decent vintage...
  22. kasbah512

    Marantz 2215B: FM mono only issue...

    Im working on this unit and have followed the service manual to undo whatever i did on the tuner and i get a clean signal, however it stays mono. I made the stereo adjustments as stated with the equipment i have on hand, but i can not get stereo no mater what i do. the switches and pots are...
  23. outrun

    First vintage system

    Hello all, I am currently building my first vintage system out of various parts I managed to acquire locally. I am a complete newbie to all of this, since this is almost my birth year hardware although I do have nostalgia towards these from my child hood. If anyone has any experience any of...
  24. Stereoboy70

    SX 626 no FM or AM.

    A friend gave me an SX 626. It’s a newer model with the tuner gang that’s part of the tuner board. Not like the older ones where the tuner gang was separate. I went through it and recapped it and cleaned it up. The aux , tape and phono all work great. I have no radio. No AM or FM. I...
  25. J

    McIntosh MR74 bulbs and MC2505 bulbs??

    Can anyone confirm which bulbs are needed for a MR74 tuner and a MC 2505 power amplifier? Would love to swap in new lights for both.
    • jgduck
    • Thread
    • mcintosh power amp tec tech support tech talk tuner
    • Replies: 1
    • Forum: McIntosh Audio
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