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Can i bypass the protect on my receiver? - Aiwa AV-D67 Receiver

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Re: Can i bypass the protect on my receiver?

Sure!... If you want to set the unit and your speakers on fire!
Recievers/amps have protection circuits to prevent pure DC voltage of the power supply from going unmodulated to your speaker(s) if the output transistors/ICs are shorted.

Posted on Apr 12, 2008

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I have a Harman kardon 1700Avr that is stuck in protect mode, Is there anyway to bypass or reset it? Thanks....

It's in the protect mode because of a component failure inside. It needs to be repaired to get out of the protect mode.

Dec 31, 2015 | Harman Kardon Audio & Video Receivers

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Receiver keeps going to standby

I don't know about the newer receivers but this sounds like an arching OFF/ON power switch that was a problem on Pioneer receivers years ago. I would bypass the switch and see what happens.

1. Unplug unit from wall.
2. Jumper two wires going to off/on switch using alligator clip with insulated boots on clips.
3. Plug amplifier into disconnected circuit breaker/fuse protected AC strip.
4. Plug AC strip into wall outlet, turn AC strip switch ON and see if problem disappears.

Feb 20, 2013 | Insignia 200W Stereo Receiver

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So what do i do if when i turn my onkyo tx-sv454 receiver on it says protect and then shuts off? How do i fix that or get around it? please help me....

I don't think you can fix it, unless you're skilled with electronics. Possibility that something has occurred internally with a circuit board etc so the system shuts down in order to protect itself from catching on fire etc. Get it services. Might not be too bad of an issue, but certainly not a bypass.

Mar 02, 2011 | Onkyo TX-SV454 Receiver

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When I turn on the player...the "PROTECT" message comes up... I would like to know how to start this player...or how to bypass this message so it pplays. Hope somebody out there knows the...

protect means that the speakers are improperly hooked up or just not compatible with the amp.

ensure that the speakers are 8-16 ohms, that no wires are crossed, and no wire strands are loose, which could touch and short. a 4 ohm speaker or a short in the wiring is almost always the cause of a protect error.

if all of this is checked, and it still says "protect" then it is fried.

Nov 06, 2010 | Sharp Audio & Video Receivers

2 Answers

I have a problem with my TX-SV535, there is no sound when i putt Dolby Surround. The test is also no sound. I have checked al cables and connectors.

If you are getting standard stereo sound but not when engaging any surround option, then the problem is centered around the digital processing section. In standard stereo mode, the processing is bypassed. On some units this too would yield no sound, but with your model, the bypass is external to the processing section. This problem can be as simple as a bad voltage regulator on the processing board to a more elaborate problem within the processing circuitry itself. Without actuall seeing the unit and testing internally, I can not state for sure. This is a decent receiver and is worth the cost of a detailed repair estimate. Get one and report the results here. We should be able to guide you through the actual repair.


Nov 02, 2010 | Onkyo TX-SV535 Receiver

2 Answers

Sony STR-DE835 5.1 Channel Receiver When looking at the Sony Service Manual Supplement-1 There are several modifications to receiver does anyone know the reasons for these Mods?


Dec 04, 2009 | Sony STR-DE835 Receiver

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How to bypass protection mode on my sony receiver

The protection mode is there for a reason...the main one being to protect your speakers in the event that there is an issue with the amplifier. Bypassing the protection can easily result in the destruction of your speakers and the unit itself. Your receiver needs to be examined by a real live technician.

Nov 27, 2009 | Sony STR-DE597 Receiver

1 Answer

Problems with Sharp Blu Ray Player "copy protected signal"

Possible solution: You set up your remote to run your amp from the TV control, using the AQUOS Link. Even though your amp is out of the loop, it's still recognized by the TV. You might have to reset the TV back to default and run the AQUOS Link again.

Apr 19, 2009 | Pioneer VSX-D514 Receiver

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Receiver puts up PROTECT message

Not enough information provided - problem is likely impedance / load related. Receivers / amplifiers usually self-protect when the resistance they expect to see as provided by a loudspeaker is too low, or bypassed by a shorted circuit. Check your loudspeakers' impedances - impedance is measured in ohms. The loudspeakers' native impedances, as-built, may be too low for the amp. You can check the amp's requirements in the spec's section in the manual. If the numbers check-out, then put a multimeter on each loudspeaker to check their impedance. A failed loudspeaker can have a tanked impedance, thereby cascading instability to the amp. If you are driving a dynamic arrangement of loudspeakers with room-borne volume controls, a multi-meter won't likely reveal accurate impedance, you will need an Impedometer to test. And, most importantly, make absolutely certain that there is not a single strand of conductor errantly shorting at all terminations.

Oct 05, 2008 | Audio & Video Receivers

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