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How to solve this problem protector push power sony dvd home theatre system dav-fz900kw

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  • Audio Player... Master
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The ampis bad. need a main board replacement

Posted on May 20, 2014

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Posted on Jan 02, 2017

dunnbiker
  • 8546 Answers

SOURCE: my home theatre dvd system

Generally speaking, an amp attempts to protect 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.

Posted on Jul 29, 2011

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How can I repair the power supply from a Sony DAV-DZ777 DVD Home Theatre System that is producing Push Power Protector error?


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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1 Answer

My home theatre dvd system (dav-fz900kw) showing as push power, protector.


Generally speaking, an amp attempts to protect 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.

Jul 29, 2011 | Sony Audio Players & Recorders

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I have Home Theater Sony DAV- DZ151Kb. Display Push Power and then PROTECTOR. I need Help


Hi,
Push power protect message appears when home theater got problem in amplifier output section and any output amplifier chip becomes bad, receiver set protection mode and refuse to power up to avoid further damage in circuit board.
It is very hard for novice to troubleshoot what output chip is defective out of six amplifier output ICs in unit, check by professional is needed to solve this issue.
Hope these info will help you.
Let me know if you have additional question.
Thanks.

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1 Answer

Why does push power protector keeps flashing in the display of my sony dvd home theatre system DAV-FXG9K


This is an error massage and comes when home theater got some internal problem specially in amplifier output section that can have defective output IC etc.
It is not user level repair and requires qualified tech for fix.
Thanks.


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"Push Power'' and ''Protector"


my sony bravia is KLV-32S400A. i tried to stop the dvd playing and turn off the home theatre, but the tv is still on. suddenly there was a loud blast sound and the home theatre shows PUSH POWER PROTECTOR.
please help what should i do with it?

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I have a sony DAV DZ230 home theatre system


on my home theater display it shows protector push power

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