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pioneer

  1. S

    Pioneer SX-990 Left-Channel Static & Muddy

    Hi all, I recently acquired a Pioneer SX990 along with a set of 8ohm monitors & I'm looking for some advice on where to start with diagnostics. The right & left channels are working on both outputs A & B. The left channel on both outputs (A & B) has a bit of static in the 40% - 70% volume...
  2. YoSeth

    I'm a noob - SX-737 Rebuild (follow along?)

    Ok, so not a total noob. A few years ago I successfully replaced all the 2SA725s and 2SC1313s. Decided to carry on and do a full recap since nothing else has ever been touched. I purchased the recap kit from eBay and opened her up today, starting with testing the output transistors per the kit's...
  3. saman

    Vintage Pioneer Recap Assist

    Hi, I recently picked up a pair of vintage Pioneer S-X707V speakers. Looks like they were made in Japan in the 80s ‌(specs and a photo are attached). So I guess a recap is overdue? A photo of the crossover has been attached. First, can you tell, by looking at it, if the previous owner...
  4. D

    Pioneer PL-71 Tomearm Rocking

    Hey everyone, The tonearm on my PL-71 has seemed to have gotten loose overtime and is now that the point where the whole tonearm has play in it, and can be rocked and tilted side to side. Now, the base of the tonearm isn't loose, it's the tonearm/yoke it self. This has caused problems in...
  5. Maydayzero

    HPM-60 Crossover gen1 vs gen2

    is there a difference between the 2 crossovers? I need to replace mine. but the listings I find don't specify what gen they came from, just say hpm-60 crossover. I currently have the gen2.
  6. 1

    Pioneer PL-510A needle broke

    Hey! I have had my Pioneer PL-510A for more than 10 years now. I put it on the other day and the arm started going everywhere. I looked closely and noticed the tiny needle fell off. I guess it was only a matter of time lol. My pioneer still has the original everything. Is there a needle/stylist...
  7. J

    Pioneer PL-570 (70s) Speed/Auto Issues

    Alright. I bought a basket case 570 a few months ago and I’m struggling to get it going. Unit was recapped be previous owner. Basically, when start is pressed, motor sometimes “twitches” and the arm moves over. Once the arm moves into position, the unit shuts off and arm stays at starting...
  8. A

    Pioneer BST-77 Cassette Deck Service Manual?? BodySonic CSP-300 Chair

    Greetings I just picked up a Pioneer powered BodySonic CSP-300 (Relax 1) Capsule chair. From 1985-86 and this model was not sold in N. America. Came from Hong Kong years ago and is cool as hell. Makes me feel like Dark Helmet while I am rocking out haha. Everything works except the Pioneer...
  9. Gerge_Sletar

    Pioneer A-X5 overheating after replacing transistor

    Hello I’m in need of some advice, I've been working on a pioneer A-X5 that is overheating after replacing a transistor in the left channel. After much probing with a multimeter, the right channel output transistors and other components showed the correct voltage. Moving over to the left...
  10. D

    Building a system, nice score today

    Starting to build a system and had to share a great score today. Recently bought a class g receiver in great shape, Hitachi sr803. It’s in great shape and I really like it. But, today I saw an ad for a Kenwood amp, ka9100. Wow a noticeable difference and it’s super clean. A package deal with a...
  11. Y

    Pioneer PL-250 and Ortofon 2m blue?

    Greetings all, I won a PL-250 as part of an auction. After some TLC it works beautifully and sounds great with a OM10. I may begin using it and putting my DP300f on the bench. I'm wondering if the PL-250 plays nice with the 2m blue? I also have a AT91E that I think came with the Denon...
  12. E

    Pioneer PL-510A Turntable Repair - Suspension Screw Inner Thread Repair

    Hi hello! I recently replaced some foam in my turntable and discovered a stripped internal thread in reassembly. The other three screws tighten completely and hold suspension on the spring, but the fourth screw's spring spins once "fully" screwed in and doesn't hold the motor assembly high...
  13. J

    PICK ONE: Marantz 5220 or Pioneer CT-F9191?

    I have a Marantz 5220 and a Pioneer CT-F9191. Getting both serviced. Curious if you had to keep one which one would you choose and why? I love the look of both of them. Maybe prefer the look of the Marantz VU meters being two tone. But it’s super hard for me to pick a favorite.
  14. triplegee77

    First Pioneer restoral - with a custom accent

    At 63, just getting back to my stereo roots. This is my second recap/restore project. First one was smooth as silk, but I had a couple novice mistakes on this one, but finally got it. Made some custom solid walnut side panels for this SX-550 and my buddy gave it a SWEET custom touch with a...
  15. triplegee77

    SX-550 Low volume right channel - Tone Amp

    So working on an SX-550 with low right channel volume and made a rookie mistake, didn't check balance function before I cleaned and recapped, so I don’t know if the issue was existing. All pots and switches have been cleaned multiple times with Deoxit. I took the input selector and...
  16. C

    Recapped and restored sx-750 50hz hum and white noise problem

    Hello, after a 3 day fight I gave up. My sx-750 started to generate a very quiet but audible hum mixed with some white noise on both L and R speakers. Not volume dependant. Unit is cleaned and fully recapped, worked for some time with no issues at all. I unplugged L and R signal posts on amp...
  17. D

    PWG-011 Board Needed

    Looking for either a PWG-011 or PWG-017-0 for my Pioneer PL-570 direct drive turntable. Mine has the PWG-017-0 board in it and has a bas PD1001 IC chip. If anyone has one or any leads please let me know. I look on ebay almost daily with no luck. Thanks in advance!
  18. N

    PL-41 Motor Noise Diagnosis

    Recently purchased a PL-41 at auction for a great price. It needed to have it's belt and thrust plate replaced, as well as some cosmetic work, but apart from that, it seems like it hadn't been used much. I followed the instruction in the manual, and added two drops of sewing machine oil in the...
  19. M

    Pioneer PL-10 odd optional item

    Good Morning. I have a PL-10 that has an item on it I have never seen before and has stumped everyone local. I know I have to clean this turntable up :). It is the small part to the left of the tone arm. There is nothing attached to it underneath. I was almost thinking it was a small oil well...
  20. RuDee

    Pioneer Cable Models, RCA, PL, DIN, Speaker

    Hello, sorry if i am repeating someone else, i could not find anything useful. Is there any info about pioneer cable models around 70's and 80's, (catalogs) RCA, DIN and so on? As of my research i was able to find only JC-200 speaker twisted cable. Thank you!
  21. J

    Help to repair a Pioneer CT-F500

    Hello, good day to everyone. I come to you to see if you can help me with your knowledge to bring this pioneer deck back to life. I have a Pioneer CT-F500 with the following problems. Auto stop failure: When I insert a cassette and press play, after a few seconds it stops for no reason. This...
  22. 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...
  23. A

    Pioneer SX-780 Goes Nuts for a Second

    I have an SX-780 that plays fine... mostly. After around 20 minutes of use, the volume of the right channel will instantly increase (by a lot) with treble-y distortion... for ONE SECOND. Then, back to normal. 1. It has been serviced and had STK-0050s replaced last year. 2. It went back to the...
  24. A

    Pioneer SX-780 Goes Nuts for a Second

    I have an SX-780 that plays fine... mostly. After around 20 minutes of use, the volume of the right channel will instantly increase (by a lot) with treble-y distortion... for ONE SECOND. Then, back to normal. 1. It has been serviced and had STK-0050s replaced last year. 2. It went back to the...
  25. L

    Unusual Clipping on Pioneer SX-750

    Hey Folks, I have a peculiar condition that I am looking to get some perspective on regarding a Pioneer SX-750 that I just finished restoring with new caps and transistors. After completing the job, I proceeded to do a power test with an 8-ohm dummy load and scope to look for channel symmetry...
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