Question about Audio Players & Recorders

1 Answer

Technics stereo amp over heats trips overload safety. Fan motor is OK but will not turn on to reduce the heat

Posted by Anonymous on

Ad

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.

  • Master
  • 6,771 Answers

The fan is controlled by the thermistor which is heat sensitive, if the temperature rises the thermistor resistance drops and activates the fan, if the fan motor is okay then the thermistor is defective, this part is found on the heat sink with the ic very near by.

Posted on Dec 30, 2010

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

4 Answers

Technics stereo Integrated Amplifier SU-G75 powers up few seconds then overload light appears and a clickng noise coming out of metal boxq with tag FP-3 M V RTP1P5C015 on it iis it supposed nto make c


If the receiver works at low volume, but goes into OVERLOAD and shuts down at higher volume, it means you are player the unit too long and too loud. Try yo keep the volume down to a reasonable volume.

Nov 15, 2014 | Audio Players & Recorders

1 Answer

Su-2760 will not work. gets a flash of power, turn off


Sounds like the safety circuit is tripping cutting off the power. Most probable cause a short circuit on the main power amp board, causing an overload.

Apr 01, 2014 | Technics Audio Players & Recorders

1 Answer

Overload sa-tx50


Most overloads are caused by the main output devices. They will go short circuit if for example speaker wires have come into touch. Another cause is high volume or a faulty speaker. Or poor ventilation around the amp causing excess heat.
The only cure is to replace the device(s) generally located on the heat sink.

Dec 01, 2013 | Technics SA-TX50 Receiver

1 Answer

Hi my technics stereo ampifier s e a 900mark2 keeps triping when i turn the volume up all the wire is propley conected it works fine for bout 10 mins then trips out my other amp 1000mark 2 is wired up and...


Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.


Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.

Mar 25, 2011 | Technics Audio Players & Recorders

2 Answers

My Technics SA-AX540 AV Control Stereo Receiver keeps shutting off and on and displays overload. Does anyone have a fix for this problem?


Heat?


Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 21, 2011 | Technics SA-AX540 Receiver

1 Answer

My dryer will do one load but then it will not work for about an hour


Hi and welcome to FixYa I am Kelly. This sure seems to sound like either the motor bypass switch or the motor thermal overload switch is preventing use until the unit cools off. I would lean more toward the motor overload switch at this point. The next time it happens place a fan blowing at the unit to cool it off and see if the 1 hour PAUSE / Not working time is substantially reduced. If it is reduced I would suspect poor aiflow and or bearings. Bearings because if they are dragging can cause the motor to heat up during use. With the motor running it may beable to get rid of just enough heat to keep running until the unit shuts off at which point the heat is already at the tripping point and the thermal overload opens from no airflow through the motor.

Here is the repair manual: http://www.fowlercompanies.com/servicemanuals%5CMDG16SERVICE.PDF
The schematic is on page 90.
I would also perform the drive motor check PAGE 37 while it was HOT, Just note the dangers of working on live circuits.
I doubt the start switch is causeing your problem but.... the mocroprocessor control board on page 17 can also cause this.

Lastly... I would open the unit and inpect for any loose wires or hot terminals to include the power connection terminal block.

You can find your parts here but will need the last 3 digits of your model number in addition to the MDE16CS*** add digits where you see * http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=MDE16CS

Thanks for choosing FixYa,

Kelly

Oct 18, 2010 | Maytag MDE16CS Electric Dryer

1 Answer

Overload error with no volume no speaker cords attached


Hello,

if its overloading, reduce the amount of speakers connected to it.

Or you can get a small fan and direct it to the Amp while its working, in order to cool the Amp and avoid it from Overloading.

Try facing a fan towards the engine and you will see that it will make a great difference.

Good luck.

Apr 17, 2010 | Technics SUV500 2-Channel Amplifier

1 Answer

I have a Technics stereo integrated amplifier SU G75. The cooling fan began making chirping noises then stopped. Now every time I turn the stereo on I get a overload message. Could it be the cooling fan...


It chirped because the bearings were worn out, then it froze up and isn't moving any air. Get it replaced. DO NOT run the unit if it keeps overloading or you will have a bigger problem.

Dec 27, 2009 | Technics SC-DV290 System

1 Answer

I have a Ruud deluxe 80 plus heater. The unit is running, the pilot light is lit, still no heat.


repost with more specific . motor aka fan is running?stat is set to heat and max heat? how old? general progression is as follows. stat says its cold. signal is sent to gas valve to open. gas valve looks to see if pilot is lit via thermocouple. if pilot is lit then main valve opens and burner lights. shortly thereafter sufficient heat builds up to trip heat sensor that turns on fan and blows hot air into house.many times a tripped safty causes a default fan response. aka when you show up the fan is on 24 7 . that equals a failed safety and needs a pro tech to see why saftyfailed.

Oct 18, 2008 | Ruud Heating & Cooling

3 Answers

Technics SA-G9057 overload


Check the fan connections at the back. The connections (just two flimsy metal prongs) came apart (I believe), so I have had to re-enforce them with electrical tape so the connections stay together until I investigate a further replacement fan. For now the connections are extremely sensitive to motion/viberation/impact/etc... but it does work now.

Sep 23, 2008 | Technics SA-EX300 Receiver

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

Related Topics:

119 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5190 Answers

The Knight
The Knight

Level 3 Expert

74459 Answers

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

Answer questions

Manuals & User Guides

Loading...