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sansui

  1. richiem46

    Beginning my Sansui AU-919 restoration

    I restored a Sansui AU-717 last year for another AK'r and was very impressed with the sound quality of the finished unit. I documented this restoration in the thread below: https://audiokarma.org/forums/index.php?threads/sansui-au-717-restoration-experience.1080560/ In April of last year I...
  2. pecata35

    Transformer ohm Switch - Sansui AU-X 701

    Hello, I have switch on the back for the impedance - 8-16 ohm and 4-6 ohm. I have Pioneer HPM 700 - 8 ohm speakers and Elektronika 35ac-015 which are 4 ohm. I usually listen to the Pioneers. On the net I found that if I put the switch on 8 ohm the amp will have full power. If I put it on 4 ohm...
    • pecata35
    • Thread
    • amplfier sansui switch transformer
    • Replies: 3
    • Forum: Solid State
  3. 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
  4. C

    Sansui 9090DB Output Problems

    Been through this 9090DB, just finished pinning and recapping the dolby board that was previously preventing sound from passing through the pre in either channel. After the pinning all modes seem to work except for one channel in rec 2 that I plan on addressing later - but importantly - off -...
  5. sean sweeney

    Just scored the NASTIEST Sansui AU20000 in history! But it works!

    Well, it's not a dumpster find. In fact, I kind of wish it was. Because most of the dumpsters I've been in were not nearly as horrid as this house! For starters, I'm going to have to take my clothes off about 50 ft from my house and leave them and the amplifier, and hope nobody from my...
  6. ZanzibarMDS

    Sansui AU-222 advice please

    I’ve got an AU-222 which has an issue with the left channel. Music can be heard out of both channels but there is a major sizzle sort of sound. A cross between bacon sizzling in a pan and fireworks. Definitely unusable and potentially speaker damaging so at this point I continued testing...
  7. Bburdette

    Vintage Sansui 771 Stereo Receiver Lights No Power

    Hey guys, I wanted to ask a question and hopefully someone can help me. I have had a beautiful vintage Sansui 771 stereo receiver for many years now. It plays and looks great. All of the lights on the front panel were working but one of them would go out after it was powered on awhile. I decided...
  8. J

    Sansui AU-919 Ground problem? Advice needed

    I am restoring an AU-919 and found that I am not able to zero the output of the F2846 Tone board. One channel can be zeroed but the other channel starts with mV of offset then slowly climbs to +20V and the adjustment pot has no effect. The board has been recapped, the 2sc1313 transistors and the...
  9. rittmaster

    System incoming! JBL S2600 + Sansui Au-D907x + TD147

    Hi all! I posted a ways back in the introductions thread foreshadowing putting a new system together after moving. Located in Osaka. I’m hoping to get some answers to some questions as I scramble to put odds and ends together. A slightly disorganized mix of room treatment, placement, and...
  10. D

    Sansui 9090DB FM issues

    Hey all, I just finished a recap of the 9090DB, fixing of the Dolby board, and LED upgrade. All was well until yesterday when FM radio started jumping around. It was working fine for hours previously. The issue is only present on FM radio. I've tried with antenna and without. No change...
  11. D

    Revived Sansui 6060!

    I recently got my hands on my dad's old 6060 from a cousin he gave it to pre me. How exciting! Just got it up and running after replacing capacitors, resistors, noisy driver transistors and the fun glue removal. I need to look into the speaker binding posts, (and maybe upgrade) the right...
  12. T

    Sansui AU-9900 & AU-11000 Differences

    Hello, Between the two, are there any major differences, not defined in the SM? I see only minor ones, specific to power transformers, some resistor values on the F-2630 PS board and probably some cap and resistor values on the "common parts list". Driver board and power transistors, as shown...
  13. A

    Which Sansui integrated for phono MM/MC?

    I'm partial to Sansui amps though I don't have any (yet) - my Dad had an AU-2200, it always felt like a quality item. I'm thinking I would like a smallish, economical vintage amp for use with my turntable, one with a good phono stage, capable of MC if I ever buy such a cartridge. Perhaps a CD...
  14. U

    Sansui SP-L550

    Found these today in rural Kansas. Can anyone provide some information on them? Thanks!
  15. OriginalFlow

    Sansui 800 Baxandall Diode Mod

    Hey AK, I've been a happy owner of my Sansui 800 for a few years, thanks to some of the outstanding reviews on this great site! I have been tinkering on my 800 for most of my ownership and I've been super happy with it. Searching the archives, nobody has made a post about doing a Baxandall...
  16. R

    Help Drawing Audio Line in this Power Board

    Hello AKers, First, sorry if im in the wrong subforum. I want to draw the red audio line like this example of Sansui AU-D7: (The red audio line is exist in schematic) IC01 2SA798 pinout: MY PROBLEM: What im trying to do is to understand where the audio line goes, start from left of...
  17. Flamedemon

    Transistor Replacement for Sansui (A-9) Integrated DC Servo Amplifier

    I recently purchased this amplifier as non-working and when I tested it the left channel sounds distorted. I opened it up, tested the transistors and found one of the left transistors is broken. I want to replace them all. Does anyone know a matching one that I can purchase on digikey or some...
  18. B

    Sansui SR 212 Question

    Hey all. New on here. Just need a little help. I’ve recently acquired a Sansui SR212. I’ve been dealing with some noise issues, which ended being transit bolt misunderstanding… now I’ve got that sorted. I’ve noticed from seeing other photos that I’m missing 3 bolts on the plynth. The TT is...
  19. E

    Sansui QRX-7001 Phono problem

    Hi All, I am working on a Sansui QRX-7001. It sounds amazing, and it is a great piece of equipment. I replaced the festoon lights with LEDs, calibrated AM/FM radio, output transistors bias and replaced a few components. However, I have stumbled upon a phono issue. It is simply not producing a...
    • Ed400
    • Thread
    • phono amp sansui sansui phono sansui qrx-7001
    • Replies: 1
    • Forum: DIY
  20. V

    Sansui ba 3000 vu meter out of sync

    Hi everyone, Im new on audiokarma, I recently bought a sansui CA BA 3000 set up from canada and i realized today ( maybe it was there from the start mayybe not - the differrence is not huge but still notciable) that the vu meters are slightly out of sync. the right level is slightly weaker than...
  21. X

    Sansui ba-5000 bias test points help !

    Does anyone have an image of where to put DMM leads ? Looking at factory service manual and following what’s written gives me weird results, 106 volts !!! Positive lead on red wire from terminal, and black lead on the pin from board right below it per channel. What am I doing wrong ? Both...
  22. M

    Weak outputs transistors Sansui 9090db

    I have been fixing A sansui 9090db for a while now,driver board ,power supply are done unit is re-capped ,keeps going green then maybe a minute or more then goes into protection.my theory is it had weak mj21194 g's hfe was 41,46,45,53,the 93's were in the 80's hfe zone,I've replaced them...
  23. TU_888_front_end.png

    TU_888_front_end.png

    Sansui TU-888 Front End
    • Mike244
    • Media item
    • sansui tu-888
    • Comments: 0
    • Category: Member Galleries
  24. F

    Sansui AU-222 Hissing Noise

    I got a Sansui AU 222 (Recap & Recable) that made Hissing Noise when volume increased but the noise reduced when I set volume to middle. Also when Treble is turn all the way left (counter clockwise) the Hissing Noise is gone. I suspect some parts in Head Amp section create these noise. Thanks...
  25. quadmatrix82

    Sansui 9090 service bulletin changes help

    Hi Sansui experts, I am in the process of restoring my Sansui 9090 which I’ve had in long term storage, it’s time to do the service bulletins and hoping I can get some pointers. Looks like it was made in Feb 1976. It says to remove the jumper to the L01-2 coils on the driver board F-2436-1, my...
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