Technics Sa-dx930 receiver. Suddenly sound stopped,came back on stopped and ths happened a few times.I checked all the wiring to the speakers re connected some of them to make sure they are o.k. and turned off the unit and turned it back on.No improvement.still no sound.Everythong else is working.Is ther an overload fuse in this unit and where if any or is ther another way to fix this. Ad Clarijs

As you suspected, the normal cause for this is the speaker wires short circuiting somewhere and causing the amplifier to cut out momentarily to prevent damage.

If there were no bare wires touching each other or touching adjacent speaker connections on the back of the stereo, then you should also check the other ends where the speaker wires connect to the speakers. Again make sure no stray wires will contact the other wire or terminal.

It is unlikely to be a power supply fuse or a loose power supply cable since the unit would likely shut down completely or at least switch to standby.

It's possible that a power transistor or other component in the amplifier circuit has a cold solder joint or is just failing, but if so then it is a significant disassembly and troubleshooting task best left for a technician.

Hopefully the system just needs to be reset.

Well here is the link to the main Technics Support page for your set in case you did not have it already:

http://www2.panasonic.com/consumer-electronics/support/Audio/Technics-Audio-DJ/Technics-Receivers/model.SA-DX930

Here is the link to the Operating Manual (see page 41 for overload reset instructions):

http://service.us.panasonic.com/OPERMANPDF/SADX930.PDF?cm_sp=Support-Operating Instructions-_-Model-SA-DX930-_-SA-DX930 Operating Instructions (English)

Basically it says to unplug the power cable for a few minutes and then plug it back in.

Or press and hold down the HELP / RESET button for about 2 seconds until the word RESET appears on the display.

Good luck and I hope this was at least a little helpful.

Please comment back here if you need any further assistance.
Take care.
Joe.

Yes' - there are two fuses that are on the circuit board. remove the unit case and locate the fuses -- they will be near the internal amplifier. if it turns out that the fuses are good - then the problem could be the volume resistor plates or a bad amplifier. it might be worth taking the unit into your local stereo repair shop and have them take a look at it,, it could just be a bad resistor or diode on the circuit board and that is very cheap to fix.

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