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SonyHT-DDW840 protect waring lite, no audio response.All audio connections removed, protect lit remains on.

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Sounds like your main power transformer has failed or the capacitors in the amp section are fryed.

Posted on Jul 30, 2009

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Posted on Jan 02, 2017

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1 Answer

Raypak problem, Pilot is lit, can jump TH to TH to lite, goes out when jumper is removed.


check how many millivolts the pilot is generating. if pilot stay lit and burners wont fire u have a problem with one of the safties, lose wire connection, tstat control

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Thermopile


Not thermopile. If your pilot will not remain lit, you need a thermo-couple. This is the device that allows the pilot to remain lit.
If you can't even get it lit, you will need to check if there is blockage preventing gas from coming out of the pilot orifice.

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DA 3ES powers on, shows the appropriate connections i.e. opt for directv playstation, etc , but has no sound for any sources. Several of the orange lights remain lit, audio split, and others and the...


Great testimony for those Monster surge protectors, huh?

Did the failure coincide with the storms? If so, stick a fork in it, it's done.

Just the same, if you really want an assessment as to damage and cost you need to have someone knowledgeable give it the sniff test in person.

No one out here can do that.

Mar 13, 2011 | Sony STR-DA3ES Receiver

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What causes my ht ddw840 receiver to go into protect mode? Can I override it?


No. That would be dangerous.

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 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 hands-on tech.

Feb 05, 2011 | Audio Players & Recorders

1 Answer

Amp Power light will not go on. Protection light is lit- Thump sound in speakers


It probably has shorted output transistors. To eliminate other possible causes, read through the following page.

Amplifier in Protect Mode - Troubleshooting

Let me know if you have any other questions.

Oct 31, 2008 | Visonik Dual Bass Box with Amplifier Car...

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Charging idiot lite remains lit.


Check all connections. You may have a loose wire or defective alternator

Jul 17, 2008 | 1997 Ford Ranger SuperCab

1 Answer

Hi i am matt


If the protection LED lights only after the remote voltage is applied (head unit is switched on), the amplifier likely has shorted output transistors. If the protection LED remains lit without remote voltage applied, the amp may have other problems.

Does the protection LED light with no speaker wires connected to the amp and no RCAs plugged into the amp?

Jun 22, 2008 | Car Audio & Video

3 Answers

My amp is on but the protection light stay's on!!


Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If the protect light remains on, the amp likely has blown output transistors.

Feb 28, 2008 | AudioBahn A2801Q Car Audio Amplifier

1 Answer

Protect light will not turn off!?


In most cases when the protect light is lit, the amplifier's output transistors have failed.

If the amplifier goes into protect with no speaker wires connected to it, it's likely in need of repair.

Nov 26, 2007 | Kole audio QX1-2400D Car Audio Amplifier

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