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pioneeer

  1. Hip Priest

    The Old Man's First Major Purchase - SX-737 Servicing

    Hey folks. So I've been starting to work on my dad's good old SX-737 - his "first major purchase" of his life. I had been lugging it around for the past couple decades and getting great use out of it, but it started to have the issue of the intermittent relay cutting out which got persistently...
  2. K

    Pioneer PL-500 transformer

    Hello, I recently decided to resuscitate my dad´s old Turntable Pioneer PL-500 that hasn't worked for over 30 years. Everything inside looks good, I think only the transformer is damaged, I have been trying to find a replacement unit but nothing. I know the reference is PTT-092-0 and the...
  3. N

    Missing PL-41 Tonearm Nut

    Recently purchased a PL-41 at auction and upon better inspection of the turntable, and looking at the manual, it seems like the nut at the rear of the tonearm is missing. A few things I am hoping you could help with: Are there any spares of this part out there? If not, I am hoping to purchase...
  4. josephdaniel

    Crazy High 15v DC Offset!

    Working on completing a Pioneer QX949 rebuild. Everything was going smoothly and working well but on the very last part that I was changing (out of the hundreds) something went wrong. Both power amp boards were rebuilt and working fine and within spec. However, whenever I changed the four...
  5. vwong688

    SX-850 Phono A Left Channel Weak

    The Phono A on my SX-850 produces a weak left signal. It is most apparent when you switch the balance left and right. This issue isn't present on other inputs, AUX, FM, etc. I've replaced my Pioneer PL-A25 cartridge/needle and rebalanced the tone arm, didn't make a difference. I switched it's...
  6. E

    SX-5590 Phono left not working

    After going up a tested and fully functioning pro-ject evo to my sx-5590 we’re not getting full audio out of the left side. 4 speakers are hooked up and only two on R side are playing fully. The left are very very faintly playing. any thoughts?
  7. maxProview

    Pioneer SA 6300 smoke generator

    Good morning, I saved an SA6300 from the landfill but it gives me a lot of worries! There is no service manual for this model... So I identified the components from the schematic and the PCB. The protection circuit had been shunted (Q101 and Q102 are out of order but D1 is ok). FU3 or FU4 burns...
  8. mythology

    Pioneer SA-900 - wobbly / shaky/ flimsy RCA terminals

    I absolutely love my SA-900, however, over time the RCA terminals at the back of the unit have become very wobbly, thanks in no part I think due to modern RCA cables that clamp ridiculously tight on the terminals. Does anyone have a solution to this at all? The sound is not affected (yet!) but...
  9. C

    A-656 mk2 help wanted

    Hi I have a old Pioneer a-656 mark ii integrated amplifier. The input selector board is broken and beyond repair (long story). I want to use it as single input "power amp", and remove/disable the phono amp, tone amp and input board. My goal is going Schiit Lyr2 pre-amp ->rca ->direct to...
  10. T

    Keep one, Sell one advice

    Hey all! This may be my first post, but I’ve been lurking for years. I have collected too many solid state receivers. I’ve gotten into resurrecting and rehabbing and I am getting to the point where I need to make some choices. Here’s my stable: —Technics SA-5560 (85wpc, main unit, running...
  11. 20221123_120359

    20221123_120359

    Pioneer RT-2044
  12. Mrcoolest123

    How to wire a pioneer spec 1?

    Hello everyone. Recently I came across a seller that is offering a pioneer spec 1 for a fair price in an ideal condition. I love the piece, but researching a bit around I found that it needs a spec 2 or 4, or an equipment with pre out/in, in order to work. I looked at My equipment and didn't...
  13. M

    Pioneer PL-50Lii Trouble

    Hi, Just bought this turntable from Japan. The turntable is running perfect on 45rpm, and everything else is great aswell, end of play hall element adjustment is spot on. But the quartz lock at 33 rpm is just about flickering and making this on/off noise from the motor. Hence I would like to...
  14. Mrcoolest123

    Pioneer DT-400 MOD

    Hey guys. I have been rearranging my components a lot lately for cosmetic reasons and had to unplug my timer various times. I got a pioneer DT-400 for a nice bargain and the little thing has been part of my hifi system ever since. I love the machine, but having to reset the clock every time...
  15. C

    Pioneer A-006

    Good morning! I recently bought a Pioneer A-006 in Japan. I had a problem with cold solders on a board that I already solved. The equipment is very good but I want to make a recap and improvements, but I don't have the schematic diagram. Has anyone worked with this team before? Does anyone have...
  16. A

    Pioneer F7171 right channel playback signal weak

    Hello all. Been troubleshooting a F7171 with weak playback level only on the right channel. I’ve tried recapping the entire amplifier board, resoldering all the joints, replacing the amp SIP, no luck. I put my scope on it today and it looks like it’s weak at the very first place I can measure...
  17. mmsean

    HPM-100 Midranges

    Does anyone rebuild these? I may have an issue with mine and wondering if there is anyone who can rebuild them or if I have to keep watch for working ones from auction sites.
  18. ceylon

    stanton 680 series cartridge and pioneer pl-520

    hey there folks i got a recently repaired pioneer pl-520 with a stanton 681. just bought an EV PM4216DE NUDE DIAMOND NEEDLE (6800EEE substitute) from stereo needles lady/caroles needles. now im thinkin, uh-oh, what if it doesnt match--compliance, etc? is there someone here who can tell me if...
  19. JB8

    PIONEER SX-2500 FM Stereo Distortion ++

    Hey Pioneer experts and enthusiasts! I have a beautiful SX-2500 that I've grown quite fond of (damnit) shouldn't have let myself get attached but here we are... Overview: Autotune seems to work but I'm not worried about that for now Has moderate ground hum, not a crazy-loud one, but annoying...
  20. YoSeth

    Crackling on receiver Volume Pot

    I have an old Pioneer SX-737. When I power up and turn up the volume, I get an annoying crackle out of the right channel. It only occurs low on the volume pot's range and goes away after working the pot back and forth a few times. A while back when I had it open to replace some transistors, I...
  21. Mrcoolest123

    Pioneer sx 3600 eletronics replacements.

    Good day everyone! This is my second time asking for guidance on the forum, and I hope you all can help me to some degree. My pioneer sx 3600 receiver is having problems. The phono left channel is dead, and my mono switch is broken. I suppose the problem lies on some capacitor or resistor...
  22. JB8

    Pioneer SX-770 Blowing Main Fuse

    Well, the title says it all - on power up its blowing the main fuse, curious what troubleshooting steps should be taken to determine the issue. Not that it really matters, but this unit is super clean, wood case is almost flawless, would love to get this guy hummin again (maybe a bad choice of...
  23. Quickdudes

    Pioneer CT-20 cassette deck suddenly stops

    Hi. I have a Pioneer CT-20 cassette deck that suddenly stops when playing a cassette. I thought it was the reel drive motor malfunctioning, but it seems to be more than that. If anyone knows the corporate of the problem that would be a huge help.
  24. B

    What silverface receiver did I have as a youth?

    TLDR: which big late 70s receiver's got perfectly cylindrical, not-as-long-as-Kenwood, toggle switch tips on the front panel, which extend deeply their slots without getting narrower, combined with a silver backing to the tuner dial? Hi all. New user, trying to figure out what my first receiver...
  25. D

    Sansui 881 vs Pioneer SX-727 for Forte I's

    I have been trying to upgrade from a Pioneer SX-727 to get improved bass from my Klipsch Forte I's. I've tried a Harman Kardon 730 and a Luxman R-115, but so far I keep coming back to the SX-727 for the clean, warm sound and solid phono section. I have a lead on a Sansui 881 for $650 that is...
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