Question about Sansui Audio Players & Recorders

1 Answer

Transistors burn out on one side of driver board f-2580 at switch on of signal sansui au11000

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Sansui Master
  • 19,396 Answers

If it keeps burning out check the wiring section of the board that is powering the transistor.
A contact or a bad diode for example can cause the transistor to blow recurrently.

Posted on Aug 31, 2008

  • Ginko
    Ginko Aug 31, 2008

    Check with the multimeter if there are more faulty components on same area of pcb. check wirings to the unit, if it is a Amp final transistor a short on output wiring can burn it.
    Check if oxyde on the board or connector may cause a short, also inspect cold joints on board.


×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do you test a transistor


most multimeters today have transistor testing functions and plugs. use one

Feb 22, 2016 | Sansui Vtg 5000a Solid State Stereo...

1 Answer

Determine if an analog receiver has blown a channel


When you need to replace the output transistors, do them both at the same time with a matched pair. That way you won't unbalance the power supply and will be assured of the same power out is available on both channels.

Feb 18, 2016 | Sansui Audio Players & Recorders

1 Answer

Sansui stereo remote


the above mentioned make and model # unit is a tuner, not a reciever, as a tuner, it's only function is to recieve radio signals, there is no internal amp, no selector switch for other components.

Apr 27, 2013 | Sansui Vintage Am/fm Stereo Tuner Tu-217...

1 Answer

Have an older (mid '70's) receiver, only get sound out of one speaker. What would you suggest?


Ah, 70's receiver, that what I used in my systems (SANSUI, YAMAHA, PIONEER, ONKYO, JBL) still today, built to last.
I would look at the back to see if it has fuses holders in the back for the LEFT and RIGHT speakers.
They may be inside also. I hope it is not due to shorted out output transistors.
Do you get sound on both sides using headphone?
You may also want to activate the TAPE MONITOR switches a bunch of time also to make sure the switches have no dirty contacts. It may be due time to use Deoxit cleaner on all controls and switches.

Please leave rating if it helps.

Jan 05, 2011 | Harman Kardon Audio Players & Recorders

1 Answer

I have an old Sansui 400 receiver. I get no sound from the left channel--both A and B speaker options. The speaker and wires are OK, because they work when hooked to the right channel contacts.


The problem seems to be the left transistor part of the unit. Try this:change A versus B speakers, asuming speaker A was working properly. If still speaker A, now connected to left output does not work, you will probably have transistor malfunction on the left channel of the receiver. Any electronic store will substitute the left transistors.
Good Luck.
Flavio/BRAZIL

Jul 23, 2010 | Sansui Audio Players & Recorders

1 Answer

How do I adjust the output bias current on a


Hi davoid
Connect your voltmeter`s probes on the "emitter" of the two output transistor, or in other words the measurement is made between the emitters of the output transistors.
Turn on the amp but do not let the output get hot.
If only one side was repaired then you could use the good side and measure its biais as reference. Or
Adjust the biais at between .007 to .014 volt, so it is fair to say that at .010 volt you would be in the range.
repeat the same for the other side if needed.
Hope this help and good luck

Mar 16, 2010 | Audio Players & Recorders

1 Answer

No sound unit powers on but no output


check the main input board, most of these brands are well known for these problems. it can be configured easily, it contains microchip and all inputs are processed on this board. output transistors should be ok, in case if you had cross checked it, in short i can say, the signal processor on this input side does not bypass the signal to output side...if it is cheap to get a board then change it....and if you think it does need resoldering...do it'

Oct 14, 2009 | Onkyo TX-SR501 Receiver

1 Answer

Power on but no click sound. found some transistors and resistors burn in a small board located at down side of the amp, need scematic circuit diagram to repair it. Please send.


If you have burnt the transistors that are located on the circuit board, then you wont be able to repair it I dont think because in the circuit board there are probibly mulitple layers of electrical wires the are extremely small and fine that would make it impossible to connect the transistor to the right layer. Try contacting the manufacturer though

Oct 08, 2009 | Audio Players & Recorders

2 Answers

Sansui amp au11000


Without seeing the amp nor having the service manual in front of me, it sounds like you have a severe offset problem. There is either an open resistor or transistor in the early stages. With the output transistors removed from the unit, look around at voltage levels to determine where the fault is. I will try to locate the service manual. Can you post the parts that you have replaced?

Thanks,
Dan

Sep 04, 2008 | Audio Players & Recorders

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sansui Audio Players & Recorders Experts

Josh Whitehead
Josh Whitehead

Level 3 Expert

1146 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Sansui Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...