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Teac ag-790 protect error message on display

Teac ag-790 stereo receiver on switching on normal display shows for a few seconds, muting light flashes, relay clicks between speaker A & B "protect" error message is displayed, amplifier shuts down

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5 Suggested Answers

  • 130 Answers

SOURCE: Panasonic SC-PM08 shuts down error F74

Would be cool if that display means you have #74 fuse blown. Maybe its for the amp output to the speakers? have you tried the speakers on another system? could they be blown? Is there anything in the manual about the error?

Posted on Apr 10, 2006

Duncan
  • 218 Answers

SOURCE: Amplifier/receiver switches off systematically after a few second of use

Sounds like a bad output channel is causing it to go into protect mode. Time to see a repair tech.

Posted on May 02, 2007

  • 129 Answers

SOURCE: PROTECT

The audio output ic's need to be replaced. need to contact and audiotech to do the job . the job require experience to be done. around 60.00 in parts . if you need more help let me know.

Posted on Jun 22, 2007

SOURCE: PROTECT message display on JVC HX-D7 DVD Stero Player and turn off

I had the same problem with a jvc stereo set, it turned out the two cables of a speaker were touching each other.

Posted on Nov 30, 2007

  • 4234 Answers

SOURCE: Teac AG-L800 'Protect' Error

Since the problem appeared to correct itself on occassion, I would first look for poor solder connections either at the output transistors or at the voltage regulators. Let me know if you need more detail.
Dan

Posted on Mar 18, 2008

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1 Answer

Why does my Teac ag h500 keep saying protect?


Hi. Unfortunately the protection circuit is saving your speakers from a fault, most likely one side of the amplifier in the unit is defective.

This needs an engineer.

Service manual is here if you need it. TEAC AG H500 Manual AM FM Stereo Receiver HiFi Engine

Oct 02, 2016 | Teac Audio Players & Recorders

1 Answer

How can u tell if your internal speakers are blowed?


Hi Patricia,

You may need a professional cleaning of all the switches internally. If you are up to it. Compressed air with an electronic aerosol cleaning solution is the first approach. Over time these parts develop oxidation. The voltage levels are small and the signal cannot be generated.You need to know what too clean, most are visible. You can also look for internal fuse protection. Make sure when the cover is removed to pull the power first. Some higher end Amplifiers provide protection. You will need a digital multi-meter or equivalent to test the fuses.

http://www.teac-audio.eu/downloads/2/2/8/1/9/TEAC_AG-790E_datasheet_EN.pdf

So before doing all of that. There is a reset switch. It is located between the speaker switches on the face of the receiver. At the top and in the middle left center of the display. Not at the speaker buttons on the left.

That function may be tripped. Reset it twice and try testing with different speakers if it fails again. It may trip instantaneously if there are abnormal voltage levels present in the circuit that arouse protection.

I have located and offer you the Manual PDF. Go here first and try the following. On page 8 in the manual. Titled, " Name of each Control" (D). There is a location diagram for you to observe. Please take some time and look this over.


http://www.teac.com/content/downloads/products/746/ag-790_6l_manual.pdf

Finally, if you need someone to talk too. The You Tube Video has an outlet store tied to it that offers live help.

TEAC AG 790A AM FM Stereo Receiver



Good troubleshooters always take a problem apart one step at time. So go for it. I know you can do it. Fare. Well.

Jun 20, 2014 | Teac AG-790 Receiver

1 Answer

Not switching on!


A short has transpired before the fuse. Now in protect mode. See a tech.

Mar 22, 2014 | Teac AG-980 4 Channels Receiver

2 Answers

My teac ag-790a 'protect' error message on display. When I brought it to the audio shop for repair it worked fine; at home again the same problem? What is the problem? Tx.


Hello
Check the putput wirings to speakers. If any of them has short circuit, the set will go to protection mode. You can understand it well, as it did worked fine at the repair shope. The set has no fault at all, but the wirings, connects to it have.
Just power ON the set at your home, without connection any output or input to it. See, it will not show any protection mode display. Switch it OFF. Connect the output to speakers, one at a time, and switch ON the set. Just do it for all other speakers. This way, you can find out, which speaker line causes the set to go to protection mode. Fine out the reason.
Never connect any input to the system, until works fine with out showing any protection display.
I helped you somewhat fine, I assumes.
Ok.

Jan 31, 2012 | Teac Audio Players & Recorders

1 Answer

I have a teac receiver AG-790 and would like to hook an equalizer to it. How do i go about it?


Find the manual at:
http://www.teac.com/consumer_electronics/receivers_&_tuners/ag-790a/

and on page 6 they show how a Tape Deck is attached. Attach the EQ exactly like that and if you have a Tape Deck or two attach IT(them) to the EQ as if IT was the receiver.

To engage the EQ at the receiver choose Tape and everything passing through the receiver wil lbe routed OUT to the EQ and back IN via the PLAY connections.

Apr 10, 2010 | Teac EQA-120 Home Equalizer

1 Answer

The stereo plays for a few minutes and then turns itself off


hello it sound like the output transistor has blown or a capacitor has swelled up

shaun

Sep 16, 2009 | Teac AG-D8900 Receiver

2 Answers

Receiver keeps flashing "PROTECT"


The protect message indicates that a problem was detected in the last stage of the amplifier and that it has shutdown to prevent further damage. Usually this indicates that the output transistors have failed. Any shop that works on audio should be able to repair this. Expect a part cost in the $20-$40 range. Add in the local labor rate for the total repair cost.

Dan

Dec 17, 2008 | Teac AG-V8060 Receiver

2 Answers

AG-790 teac


Same problem here. My first receiver was doing this, sent it back, and the second did it again. So I remembered an article regarding remotes and florecent lights. I covered up the remote sensor on the face of the receiver and so far no problem. A piece of tape about 1" square was used and so far no problems. jeffspeakers@aol.com

Sep 04, 2008 | Teac AG-790 Receiver

1 Answer

Teac AG-L800 'Protect' Error


Since the problem appeared to correct itself on occassion, I would first look for poor solder connections either at the output transistors or at the voltage regulators. Let me know if you need more detail.
Dan

Mar 18, 2008 | Audio Players & Recorders

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