Question about Denon AVR-4802 Receiver

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I have a Denon AVR4802R receiver/home theater amp that is shutting down in protect mode. I need a schematic. I am a professional technician and want to service this unit myself.

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THE MANUAL IS AVAILABLE FREE FROM elektrotanya.com
http://elektrotanya.com/denon_avr-4802_avc-a11sr_sm.pdf/download.html
hope this helps yammandan or email me and will send you it...

Posted on Aug 19, 2010

  • Bob Crawford Aug 20, 2010

    How do I e-mail you? Please send me an e-mail address or just send the manual to bobcra@tds.net. Thanks - I'm having trouble with the site you mentioned.

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Dec 25, 2015 | Audio Players & Recorders

1 Answer

Every time I switch on my denon dht 500 sd it turns on then the word protected comes on then shuts off


My guess is you have uninsulated speaker wires touching, probably in the back of the receiver. If speaker wires touch (short) like that, it should put the system into protect mode to keep from blowing the amplifier section. Good luck!

Jan 06, 2013 | Denon DHT500SD System

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Why do i have to power on and off my times with my denon receiver before it connects/


That is called the protection mode, Because of a internal problem with the amp, That is causeing it to over heat, End shut down,

Dec 02, 2012 | Denon AVR-1907 Receiver

1 Answer

Red power light blinking on my denon avr 1907, tried reset procedure, no speakers hooked up now and it still goes from green light to blinking red light and shuts off...Any clues?


This is a protection mode. The receiver protection circuit detects an internal problem like missing power supply voltage or blown channel and shuts down the receiver. You need to bring the unit to a repair facility.

Sep 26, 2011 | Denon AVR-1907 Receiver

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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.
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Thanks.

Jan 14, 2011 | Sony Audio Players & Recorders

1 Answer

After power up delay then goes into protection mode denon avr 5600 how can i solve thios problem


Disconnect all speakers at the receiver then turn it back on, if it does not go into protection, post a comment and I can walk you thru troubleshooting. If it still goes into protection, it will need to be serviced. Hope this helps.

Aug 20, 2009 | Audio Players & Recorders

1 Answer

No home theater sound


Protect mode will kick in whenever a fault is detected.

You get the unit not powering up, and sometimes you hear a clicking noise, that is the protection switch that keeps shutting down the unit.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

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1 Answer

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This amp is going into protect mode as it is sensing an internal overload,needs to be repaired...

Jan 08, 2009 | Denon AVR-5800 Receiver

1 Answer

Denon surround saying protect on display


Make sure none of your speaker wires are touching, this will cause it to shut down instantly.

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