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sony

  1. C

    This is not your regular Sony CDP CX300/350 Table Error!!

    I bought a reconditioned Sony CDP CX300 CD changer. The belts are new, the table motor board and drive train look great. I've tested the original and a second (eBay) table sensor board and all sensors show what I would expect on the scope (0V to+4V) square waves. I was worried about the disc...
  2. B

    Sony ST-S700ES - incorrect frequency displayed

    I've obtained an old Sony ST-S700ES quite cheaply. It's all working well, as far as I can tell, except that the frequency displayed is a little 'off' - for example, a station on 92.90MHz will only lock on when the tuner displays 92.95MHz. This +0.05 MHz offset is constant throughout the FM...
    • Bagpuss
    • Thread
    • frequency sony st-s700es
    • Replies: 1
    • Forum: Tuners
  3. L

    old 1990s Sony CFS-W470S boombox

    "Hello friends. I have an old 1990s Sony CFS-W470S boombox. Recently, I wanted to listen to compact cassettes again. But of course, the rubber belts are no longer functional. I removed the cover and saw a confusing situation. I removed three belts and will look for replacements. One belt is...
    • Leonfree
    • Thread
    • belt belt kit sony
    • Replies: 18
    • Forum: Tape
  4. S

    SONY TA-E77ESD Under Plate

    Hi, A couple days ago I recognized one strange thing on my E77ESD. The first picture coming from USA that the device has additional plate clearly visible (circled in green) other device is produced for Europe area and has not got that plate. So anybody who is from Europe area checked their...
  5. david winter

    Sony STR-3800L - Transistor replacements on output board

    Hi, I need to replace the transistors on a Sony STR-3800L output board as both outputs are shorted. The last four transistors in the list differ with the service manual. References in bold were originally installed in this amp, which may be an early specimen (serial at rear is in the 5007xx...
  6. T

    Sony PS LX 520 linear fully functional except tonearm will not drop.

    I just picked up a PSLX 520 that was listed as untested. The tonearm would not move across so I put a new belt on and then everything was fully functional size detection record detection everything except the tonearm would not drop the head once it got into place. I've recapped the power board...
  7. jerdobi

    Restoring a vintage 50 year old Sony TA-5650 in 2026

    I wanted to say a big thank you to the entire audio community both on AudioKarma and YouTube for all the help and guidance in restoring my Sony TA-5650. As we all know, these amps are no small project—the output FETs are extremely difficult (if not impossible) to find and match properly. I...
    • jerdobi
    • Thread
    • sony sony ta-5650 ta-4650 ta-5650
    • Replies: 5
    • Forum: Solid State
  8. qui

    Sony PUA-237/286/1500L/S Tonearm Service Manuals

    Hi all, it was a massive pain in the backside to find these, and there are a few historical threads here searching for them, so I thought I'd link them for posterity. Link contains only the PUA-1500L/S service manuals, PUA-237/287 service manuals, and TTS-3000 service manual. The PUA-1600...
    • qui
    • Thread
    • professional pua sony tonearm tts-3000
    • Replies: 5
    • Forum: Turntables
  9. I

    Sony SCD-1 Not reading CDs

    Hello, I'm a repair tech based in Malta (Europe), a client brought in a SONY SCD-1 not reading CDs The unit fails to read the table of contents. After consultation of service manual, the Adjustment mode was used to determine the cause of this failure. Code 30 (Disk check) determines the type...
  10. H

    Help identify this Sony amp — total newbie here

    Hey everyone, I’m quite new to the audio gear world and just starting to get into the hobby. I recently dug out an old amplifier that my dad has had since (I think) the 90s. I honestly have no idea what model it is the only thing I know for sure is that it’s a Sony. It’s definitely seen better...
  11. C

    Sony PS-T33 Tone Arm Drop

    Hey all. Working on a Sony table that is dropping the tone arm pretty violently due to lack of damping fluid. I have removed the little black rotating push rod and cleaned it and the brass plate it puts pressure against and reapplied some 500k silicone oil, but the tone arm is still dropping...
    • CaseyWKC
    • Thread
    • arm damage drop ps t33 repair sony turntable violent
    • Replies: 4
    • Forum: Turntables
  12. S

    Sony PS-LX250H Mysterious Failure Help

    I bought a Sony PS-LX250H turntable for my roommate. When we hooked up the turntable, we noticed after playing a couple of LPs that it was running slowly and heard some wow and flutter. I ordered a belt replacement and dialed in the 33RPM speed adjustment until the speed was perfect (according...
    • Sootu
    • Thread
    • help problem sony turntable advice
    • Replies: 0
    • Forum: Turntables
  13. Ray66

    Sony STR-7065A Transformer Hum

    My current restoration project is a Sony STR-7065A. Aside from the usual problems (dirty contacts/pots, burnt out lamps, etc.), it has a very noticeable hum coming from the transformer. It's moderate when idling, but pushing it to max power into dummy loads gets it buzzing really loud. To be...
    • Ray66
    • Thread
    • hum sony transformer
    • Replies: 6
    • Forum: DIY
  14. A

    Sony TA-4650 help needed

    Dear all, I inherited a TA-4650 from my dad which had been idle for around 15 years. I used it with great enjoyment for more or less a year before noticing one of the channels was sounding more silent than the other. The difference wasn’t huge, but it was perceptible. Given the reputation of...
  15. C

    First post! Scored 6 turntables in 7 days and I don’t know what to do! Been in this hobby for less than a month!

    So as the title says, I’ve bought 6 Turn tables in a short while, I am new to the hobby as of this year but I think I’ve landed some keepers! The first was a near mint Pioneer PL-630 for a whopping $60, needs some TLC but it plays good just sometimes has speed issues with the quartz lock. Gonna...
    • Chiefkeefe
    • Thread
    • biotracer pioneer ps-x600 ps-x800 sony vpi vpi classic - ffyx - amari
    • Replies: 33
    • Forum: Turntables
  16. toads

    Sony Walkman FX-290W Right Channel Dead

    Hello, AudioKarma friends. My boyfriend has recently gotten into cassettes (hipster) and purchased a Sony FX-290W Walkman for just under 10 dollars. The seller claimed that the right channel was dead but the device was otherwise in good shape and you can just unplug the headphones slightly and...
    • toads
    • Thread
    • fx-290w repair sony walkman
    • Replies: 11
    • Forum: DIY
  17. F

    Sony ECR-500

    I had been looking for a set of vintage Sony ECR-500 headphones and recently won a pair at auction. Actually, I have one each ECR-500 and ECR-400 headphones and a pair of ECR-500 energizer boxes. These took forever to arrive from Iceland, mostly because they spent a bit over two weeks in Chicago...
  18. Virtus

    Sony SS-G7s speakers (Very RARE )

    Hello, everyone! I managed to get my hands on a very rare version of Sony SS-G7s speakers. There is little information about these remarkable speakers on the Internet, but I managed to find some. And now I want to share it with you. In the late 1970s, Sony developed a system with active...
    • Virtus
    • Thread
    • sony sony speakers sony ss-g7 sony ss-g7s
    • Replies: 4
    • Forum: Speakers
  19. N

    Help Troubleshoot Issues With Sony TA-AX390

    Hi AK - This is my first post so please let me know if there's anything missing or if it needs to go in a different section of the forum. I picked up a Sony TA-AX390 integrated stereo amplifier last spring and have had it for a few months now. I got it for a good deal alongside a separate tuner...
    • nsdigirolamo
    • Thread
    • amp amplifier help integrated amp integrated amp help sony sony ta-ax390 ta-ax390
    • Replies: 2
    • Forum: Solid State
  20. david winter

    Sony PS-4300 - What replacements for 2SC1173(Y) and 2SC1760 ?

    Hi, I am trying to finish restoring a Sony PS-4300 turntable (fully recaped) which speeds start fluctuating after a few minutes. The 2SC1173Y is the output transistor of the motor control circuit (Q110, TO-220, BCE) and tests with a gain of 88 (should be 120+). As I don't have any KSC-1173Y, I...
  21. P

    Sony 11pin Multi-Connector wiring for Digital Video8 EVX-S8?

    Hello all, I know its a long shot but I am trying to test/restore/refurb an old mobile Sony Video8 head unit from the mid 80s for a customer and for the life of me cannot find the wiring pinout for the older 11pin style multi-connector or the lower 7pin (which I am assuming are the Video...
    • PuckSMC
    • Thread
    • evx-s8 hi8 sony tape
    • Replies: 0
    • Forum: Tape
  22. RogerALB

    My Collection Down In the HiFi Lair

    OK, well, let's see what is in the Lair: Ignoring the very top shelf as that is where the odds and ends are kept, we see that there's a B & O Beogram 3404 sitting on top of a Technics SL-PD8 and both are connected to the Beomaster 3000-2 on the next shelf down. The Beomaster is driving a Beovox...
  23. patslice

    Vintage Sony TTS 3000 - 45 Spinning too fast ! Help me diagnose the problem...

    Hello! I'm helping a friend repairing his beautiful vintage Sony servo TTS-3000. The problem is only on the 45rpm side: it spins way too fast, at around 75rpm. 33 is working perfectly. Under the unit there's a screw to adjust the speed of both 33 and 45. The 33 allows some small adjustments...
    • patslice
    • Thread
    • 45rpm sony speed adjustment speed control issue speed issue turntable
    • Replies: 34
    • Forum: Turntables
  24. R

    Sony HMP-70 Help

    Hi, I recently picked up this awesome all in one Sony HMP-70 system. I have cleaned it myself and everything works fine except a few problems. 1. Left channel speakers do not work. Both speakers work when I switch to mono. Is the left channel fuse out and recs for repair or self trouble...
    • retrosounds
    • Thread
    • all in one system amplifier amp turntable belt drive how to fix speaker channel sony speaker channel not working turn table advice
    • Replies: 2
    • Forum: Turntables
  25. T

    Comparing Sony TA-2650, harman/kardon PM640 and Beomaster 1900

    Thought I write couple of lines how these three compare to me. As it's what I have at home now and been working on these as a new hobby kind of. Setup: Source: MXN10 and RME Babyface Pro Speakers: Beovox S45-2 (rebuilt filters, inside cabling and added SpeakOn connectors) Room: fairly small so...
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