Question about Technics SA-AX7

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My reciever reads overload turn power off

Ya every time i turn it on, it will act like it will work, but only for a split second then will read overload power off overload its frustrating only been used for about five months it been sitting in my closet for two years.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: overload

short in ps or amps shorted. Look for burnt parts are bad caps

Posted on Aug 27, 2007

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freetek
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SOURCE: Overload on Technics SA DA10

This is an old message so you may not be interested any more.
There are a couple of possibilities; the high power of this unit seems to fry speakers fairly often and although they mostly fail 'open,' they can overheat causing the voice coil to lose its insultation and cause a short instead.

This may also be caused by the failure of one or more output modules causing the power supply to limit and give you the overload indication.
If an output module has failed and the unit is not limiting current, it may destroy speakers too.

Some knowledge and a decent meter would reveal the nature of the failure pretty quickly but describing the steps necessary to troubleshoot this is a little beyond the scope of this forum.

Posted on Apr 23, 2008

CLARKPINK55
  • 71 Answers

SOURCE: overload

internal wickman fuses blown check speakers high unts tweeters\ gone short primary transistors /ic blown

Posted on Dec 08, 2008

  • 336 Answers

SOURCE: receiver says power overload, turn system off

It probably needs soldering of the voltage regulators and/or output IC.
I think that model has an access panel on the bottom (it may need to be cut out then rotated and screwed back on when done).
If it doesn't have the panel the main circuit board needs to be taken out to access them.
The regulators and output IC are mounted on the main heat sink. a little soldering and it should be good as new.

Posted on Feb 17, 2009

  • 1 Answer

SOURCE: Overload on Technics SA DA10

Cracked solder joints due to excessive heat cycling. Do not place in a shelf system. Top MUST be open for 1 ft. or better for proper convective cooling effect. Mine suffered same fate but repaired locally.

Posted on May 27, 2009

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