What do I need to know about the Sansui 9090db?

Sansui 9090DB. Description. The Sansui 9090DB offers advanced technology in a stereo AM/FM receiver. It features a 125wpc power amplifier section, direct readout power meters, an AM/FM analogue tuner, Dolby noise reduction circuit, Bass, Midrange and Treble controls (defeatable), two tape loops and a Moving Magnet Phono stage.

Why are my Niterider red and blue lights not working?

It turns out that the red and blue light combination indicates a problem with the battery. If your unit is fairly new, this is almost certainly down to a simple flaw in the Lumina series of lights where the power connector pops of the controller board.

Why is my Niterider bicycle light not working?

Today I went to use my NiteRider Lumina 650 bicycle light but upon pressing the button, it simply wouldn’t power on.

What should I do if my Sansui amplifier is not working?

First, disconnect the unit from the AC (Alternating Current) power for 30 minutes. Then, unplug all the speakers and their associated equipment. Next, reconnect the unit along with its electrical devices to hold down the ‘Power’ button for 5-10 seconds to allow a forced reset.

Why is my Sansui a-e970 amplifier not working?

First, check if the output transistor in the right channel is shorting out and causing this issue. If so, replace it; otherwise, inspect the capacitors on the power supply board for any bulges or leaks and replace, if needed. How to fix a Sansui A-E970 amplifier that fails to receive any signal from the speaker outlets?

Why is my Sansui overload protector not working?

If not, it might indicate a faulty balance selector or switch that will need replaced. Alternatively, if the sound changes, then it could point to a defective amp or a loose connection either between the input and the amp or the amp and the speaker output. How to fix an intermittent ‘Overload Protector’ message on a Sansui amplifier?

Which is the best Sansui AM / FM receiver?

Ótimo receiver, potencia e qualidade Sansui. In the top ranking of the 10 best receivers ever!!! This beast reproduces sound as near perfect as it gets. A perfect match for low impedance hi fidelity speaker systems like Maggies and ESS AMT’s.

Where can I find vintage Sansui stereo parts?

KEEP CHECKING!!! MOST OF THE PARTS LISTED BELOW ARE FROM SALVAGE UNITS. * Our “parts units”, parts / spares and related reference information are primarily archived for the purpose of restoration / repair of “Oak Tree Vintage” units first.

Which is the best case for a Sansui 3000A?

What most don’t know is that most of those same brands engineered arguably their best performing examples the decade earlier. The Sansui 3000A being one of them. If you can find the extremely rare-unicorn wood case buy it immediately, as it really transforms an okay example to a very handsome vintage unit.

Is there way to fix Sansui 3000A stereo tuner?

Pita to fix, but once you do what mods are recommended, or if you’re very lucky and can bias + and – rails for L and R for 80 mA and essentially zero dc at speakers you may be able to just let it be.

What kind of AMP does Sansui 1000 use?

I think the Sansui 1000 uses 7591 or 7591A tubes. They used to be hard to find, but they’ve been back in production for the last few years, so they’re quite easy to find. I’m pretty sure you can get a quad of Electro Harmonix for under $100. I’ve been looking at those 1000’s on eBay too–very cool.

Is there a Sansui turntable I still have?

3rd digit gives year, thus 8 for 197->8 and 4th & 5th digits give month, thus 01 for January. JohnG PROG Nation! I still have a Sansui turntable.

What kind of gain stage does a 9090db have?

The secondary gain stage devices were replaced with a low noise, modern TO-92 type Fairchild devices. Similar to the 9090DB the 9090 features a BA312 central Mic Amplifier stage. The F2543 requires the change of two resistor values due to the increase in current consumption of the BA312 modules.

What kind of bridge does a 9090 power supply use?

The 9090 power supply assembly contains a full-wave bridge 5A for the 61 volt -/+ B supplies as well as a single full-wave for a 1A single ended 36 volt supply. The full-wave bridge device was replaced with a common cathode ultra-fast, soft recovery MUR OnSemi type TO-220 device.

How old is the Sansui 9090db FM receiver?

My 20-year-ago, Albuquerque flea-market-treasure, a Sansui 9090db Receiver, is almost hypothermic. My dusty N.M. years took the first tole. The pots all got The Grit. The volume control got it the worst, so bad in fact that Big Su gradually became all but mute, 5 years ago.

How long does it take to restore a Sansui stereo?

Please note: cabinet refinishing may add up to 2 weeks to the restoration. Veneer work on the cabinet may add up to 4 weeks to the process. We originally started out just restoring the QRX9001/etc. series, but over the years we have been asked to restore most everything that Sansui has made before about 1980.

When did the Sansui qrx9001 series come out?

We originally started out just restoring the QRX9001/etc. series, but over the years we have been asked to restore most everything that Sansui has made before about 1980. At this point we have restored hundreds of Sansuis, and we know them, inside and out.