Question about Sony STR-DB830 Receiver

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How do you get the protector mode of of this model

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After solding the voltage driver Ics on the main amp board it may be nessasary to replace one of them . Look for one starting with the numbers 350. They always go bad. Also check with your ohm meter for shortted output transistors. You will have to pull the amp board out of the set. Keep me posted. I'll help you . Larry's Electronics ledstiles@hotmail.com

Posted on Apr 24, 2010

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Zenith Pdp42t10000 won't turn on after power outage..it was on a surge protector which was still plugged in but was in "off" mode.


Connect something else to the same surge protector, and turn that on. Does that work? if not replace the surge protector.

Dec 19, 2013 | Televison & Video

1 Answer

How do i get my sony DA30ES am -fm reciever out of protector mode


Here is a guide for you: STR DA30ES Protect


let us know how , if you need further assistance.

Jun 09, 2012 | Sony STR-DA30ES Receiver

1 Answer

No power cannot turn on


Suggest you check the simple stuff first.

Not checking is akin to a car that won't start, and tearing apart the entire fuel system, only to find it was just out of gas.

1) Make sure the receptacle the surge protector is plugged into, has power. Surge protector Power On light should be lit.

2) Check THE receptacle in the surge protector, that the computer itself, is plugged into.
Have had a number of expense surge protectors, where just THAT receptacle was bad.

("Hmmm, surge protector Power On LED light is lit. Monitor, printer, sound system, and router plugged into the surge protector has power. Should be good to go.

NOT!
Plug a table lamp, or similar device into THAT receptacle.
Make SURE it has power)

Surge protector, and receptacle in surge protector checks out?
Bypass the Power On switch.

See if the problem is a $5 Power On switch, or the Power Supply.

(Generic ATX Power On switch that I have found fits many computers,

http://www.directron.com/atxswitch.html

{The Power On switch, is located inside the plastic Power On button assembly}

This is information about computer Power Supply's,

http://en.wikipedia.org/wiki/Computer_power_supply

This is a basic example of an SMPS, (Photo at upper right. You can click on the photo to enlarge), and info about.
(Switched-Mode Power Supply. The main type of power supply used in personal computers),

http://en.wikipedia.org/wiki/Switched-mode_power_supply

By bypassing the Power On switch, you will be able to determine if the problem is the switch, or Power Supply.

Bypassing the Power On switch turns the Power Supply on?
Bad Power On switch.

Bypassing the Power On switch does Not turn the Power Supply on?
Bad Power Supply.

A jumper wire is used on the 20, or 24-pin ATX main power cable.
The jumper wire goes to the Soft Power On, (PS_ON. Green in color), to ANY Ground wire.
(ALL Black wires are Ground wires)
A MOMENTARY contact is used.

(Example of a 24-pin ATX main power cable, and it's respective connector,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24 )

In order to guide you in this procedure, I need to know the computer manufacturer name, and Model Number.

On a desktop computer this will be located on the Back of the computer tower, (Next to the Windows product key), or up on the side of the tower.
Some models have it where there is a door you open in the front, and the product number, or model number is located there.

Post back in a Comment.

Aug 07, 2010 | HP Computers & Internet

2 Answers

The screen icons are very big now and i am not able to make them normal


Your iPhone is in enlarged mode caused by accidentlally double tapping with 3 fingers. You can find the solution here: iPhone screen enlarged.

Jun 28, 2010 | Eforcity Apple iPhone 3GS 16GB / 32GB...

2 Answers

Sony str-de525 system "protector" problem


You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

Mar 15, 2009 | Sony STR-DE935

1 Answer

Receiver goes into protector mode


Nope, power supply it would not even power up.  The capacitors are fried

Jan 04, 2009 | Sony STR-DE635 Receiver

1 Answer

Stuck protector mode


find out why the fuse blew in the first place.the protector is just PROTECTING the main circuits of the receiver.the receiver turns on just to confirm the power circuit is OK.
have it checked by an electronic engineer.

Apr 16, 2008 | Sony STR-DE597 Receiver

2 Answers

Protector mode..


Cambiale los IC de audio que esten dañados.

Oct 13, 2007 | Sony STR-DE825 Receiver

1 Answer

Protector flashing


Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Oct 05, 2007 | Sony STR-GA7ES

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