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sansui

  1. quadmatrix82

    Sansui 771 hiss

    Hi sansui experts, I recently purchased a mint 771 receiver that wasn’t working, after a recap and replacing all the 2sa726/2sc1313 transistors and zener diodes it’s working very sell however I do notice quiet loud hiss on without music playing I am wondering if the transistor substitute chosen...
  2. Dvanamps

    Sansui AU-777 Troubleshooting

    Hi folks, Im currently undergoing a full restore of a beloved Sansui AU-777 amplifier. Have already been following threads by @Leestereo and @KeithD among others to gain better understanding. So far, I have redone the power supply caps and all is sounding good, I can already notice an...
  3. quadmatrix82

    Sansui 771 no bias

    Hi all I recently got a 771 receiver in lovely condition purchased as not working. I’ve given it an overhaul which included Recap Replace 2sa726 with 2sa970 Replace 2sc1313 with ksc1815 Replace all zeners Replaced trim pots Replaced 2sc1364 with ksc2690 Relay clicks out as normal with a 70w...
  4. C

    Sansui TU-555

    Good Morning all, I have a vintage Sansui tu-555 with the left side output being like 80 percent quieter of what the right side output is. I have the schematic along with pictures. I have tried looking at the schematic but it is very hard to read. I am assuming this will need a recap. Any advice...
    • Culprit
    • Thread
    • sansui sansui tu-555
    • Replies: 2
    • Forum: Tuners
  5. C

    Sansui tu-555 Left channel quiet

    Good Morning all, I have a vintage Sansui tu-555 with the left side output being like 80 percent quieter than what the right side output is. I have the schematic along with pictures. I have tried looking at the schematic but it is tough to read. I am assuming this will need a recap. Any advice...
  6. bhairavi

    Querying some early Sansui prices...

    I posted about this in the Sansui forum as well but I need to talk $$$ so here I am. There's a person selling a few different Sansui amps/receivers and I'm trying to see if it might be worth it to get more than just the one amp that I'm looking for. For starters, they have AU-505/TU-505...
  7. Just_open_box.jpg

    Just_open_box.jpg

    • Mike244
    • Media item
    • sansui tube
    • Comments: 0
    • Album: Sansui PM-770
  8. Mirilaj

    Output symmetry of AU-101

    Hi folks, I've been restoring my AU-101 and when measuring the output symmetry , i discovered this: The voltage measurements look good enough: And here is the interesting part. After reducing the asymmetry by increasing R814, the sound changed and I am not sure if it got better. IMHO It...
  9. O

    Opinions on the Pioneer A-402?

    I have a Sansui AU-3900 but there is this pioneer available that seems like a nice option to try something else but couldn't find a proper review or opinion.
  10. buerwi01

    Sansui 7070 Blown Fuses

    Hi everyone, I’m a long time lurker, first time poster, so thank you in advance for any assistance you can offer! I have an issue where the left channel on my Sansui 7070 stopped working, and was momentarily fixed by cycling the switches. However, it then stopped working again, and when I...
  11. J

    Need advice about ohms !

    Just picked up a sansui g4700 which is 8ohms currently my speakers are definitive model BP2004 which apparent are 4ohms (they both have subs built in that are seperately powered and plugged into the wall). Do you think I can run the speakers with the sansui? Side info My current receiver is a...
  12. B

    AU222 Single Channel Stereo, Smoking plus new Bass Potentiometer

    Hi all, I picked up an AU222 last week and have experienced a few issues. I'm okay with a soldering iron and have performed successful single capacitor replacements before now but I need some help with troubleshooting and guidance. 1. Single channel stereo output During testing only one of the...
  13. U

    Need Bias Current Help with Sansui AU-20000 (0 mv)

    Hi everyone, I'm experiencing an issue with my Sansui AU-20000 amplifier. When I set the low pass filter on the front panel, the amp goes into protection mode, and a loud pop is heard from the speakers. The amp is quite old, so I decided to recap all the boards and change some transistors...
    • Utk
    • Thread
    • au-20000 bias adjustement bias current sansui sansui au-20000
    • Replies: 42
    • Forum: Exclusively Sansui
  14. E

    Sansui TR 707a - Tuner Light Modification

    Hello guys, first post here. I got my hands on an old Sansui TR707a receiver that has a lot of potential. I'm not a certified technician, I'm a hobbyist and I have restored/cleaned different units in the past, changed bulbs, did a bit of soldering, etc but I'm still a noob. What I would love to...
  15. Logchop

    Sansui 5000a FM muting and stereo issue

    Hello, Have a 5000a here with some FM issues, a pretty common thing with this model it seems. I've searched extensively on this site to see if anyone had the exact same problem I'm running into, but haven't seen it. Currently, I'm not able to get any FM in stereo and the sound through FM is...
  16. B

    Sansui SP-2700 waveguide

    Good morning. I have had a pair of Sansui SP-2700's for several years and love them. I use them in my living room, and they get used for everything from music to movies. In movies in particular, the higher frequencies (and loud volume) causes a buzzing that appears to be coming from the metal...
  17. L

    Sansui 500EA Headphone Question??

    Hi All, Just acquired a Sansui 500EA that has been converted to 120V and had the caps replaced about 4 years ago. I have been looking at all the schematics but cannot figure out how the headphone jack on this unit puts a load on the amp? I would love to use it as both a headphone driver and a...
  18. lsorrentino

    Wow and Flutter measurements like you've never seen before! Maybe...

    Wow and Flutter I’ve had a Vernier force sensor for educational use for a couple of years, acceleration and gyroscope. I didn’t have time to play with it until a couple of weeks ago, it connects via Bluetooth and can collect up to 1000 samples per second, here, acquiring the data, 5 minutes of...
    • lsorrentino
    • Thread
    • flutter lenco lenco l75 revox revox b790 sansui sansui xp-99 sony ps x555es w&f wow
    • Replies: 30
    • Forum: Turntables
  19. J

    Sansui P-M7 skipping

    Hi, I am wondering if anyone has any idea on a problem I am having with my turntable, it plays a 33 or a 45 but will play one song of a 33 generally before starting to skip and plays about a quarter through a 45 and does the same, I have attached a new stylus and also renewed all grease where...
  20. M

    Can Sansui AU-707 drive KEF LS50 Meta?

    Sorry everyone if this is a dumb question. I am a newbie trying to get my first Turntable set up going. I have ordered an AU 707 which is a Japanese version of the AU 717. Along with them, I have acquired a set of KEF LS50 Meta which I plan to drive with the Sansui. My question is, will the...
  21. D

    Connecting two Linn AV 2250 to vintage JBL 4312A?

    Hello! Can anyone help me with the best way to setup two Linn Audio AV 2250 with a pair of JBL 4312? I want to get the best out of the system as possible! Ps. Using a Sansui 555a as pre amp temporary. Thanks for any help!
  22. lopezluna

    Help needed with my Sansui 9090db

    Hello everyone. I recently purchased a sansui 9090db receiver in working order. After a month of owning it I decided to do a restoration on it. I started with the F-2625 power supply board, caps, transistors. Tested on dim bulb and all good. I then moved on to F-2624 Driver board and replaced...
  23. quadmatrix82

    Sansui AU-11000a filter capacitor option?

    Hi Sansui experts, I’m refurbing a Sansui AU-11000a for a friend, does anyone have any filter capacitor recommendations that is a direct fit? I used some 18000uf screw terminal caps for my own BA-2000 but these seem like too big a jump to use in this amp? Only thing I found was potentially this...
  24. T

    Sansui 551 receiver knob broken off?

    I just bought a sansui au 551 from a flea market and during the ride home the speaker selector knob broke off. This is very annoying as this is probably the hardest off all the switches / potentiometers on this device to replace as it also acts as a power switch. Any tips on how this can be...
  25. A

    Sansui AU517 Spitting at Startup

    Hi all. I'm picking up my AU517 from a tech who doesn't have time on his bench to work on it. The problem: Spitting noise on start up. Lasts about 10 or 15 seconds. Rapid at the beginning, then tempers toward the end. This thing has been worked on: boards recapped. I did not take them out...
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