Question about Sony STR-DE435 Receiver

1 Answer

Str de 435 I was watching a movie nothing was being moved when suddenly I heard the relay click the protector mode came on thank you

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,594 Answers

Relay click and Protect display indicates that receiver got problem in output amplifier section and most probably output chips got defective. This kind of problem is not user level repair and local repair shop will help you to get it fixed.
Thanks.

Posted on Oct 15, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

I have a Sony receiver model Str - de 435 it constantly flash Protector and I tried everything to fix this any ideas


The protector indicator usually indicates that one of your amplifiers has shorted output transistors. This is not a user repairable problem and the amp will have to be taken into the shop for service.

Mar 21, 2015 | Sony Audio Players & Recorders

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

Sony STR-DE525 Protector mode


Hi,
Download service manual of STR-DE525 here and fix your receiver.
Must download all 4 files at web site.
Need further help, let me know.

Sep 24, 2008 | Sony STR-DE525

1 Answer

Help


check/replace your speaker wires. If a wire came loose, it will go into "protect" mode and shut down, to protect from a short circuit.

Jun 16, 2008 | Sony STR-DE525

1 Answer

Looking fot tech help


The clicking might have been the speaker relay attempting to engage. Measure any DC on the output transistors. You should see (B+/-,0.0 and +/- 0/6V). Anything else and the protection circuit will kick in. Update this with the measurements and we'll go from there. Note that this unmit may have darlingtons in it in which case the +/- 0.6 will be +/- 1.1

Dan

Mar 27, 2008 | Sony STR-DE635 Receiver

1 Answer

Sony STR DB-930 Receiver jumping into protector mode


I went through the amp/receiver and used small star washers on all the grounding screws I could find including the one securing the transformer, cleaned dust off all circuit boards, checked output transistors and fuses, all OK.

Re Assembled unit and it worked OK.

I will buy a fan and fan it to avoid sourcing heatsinks for the previusly suggested IC's.

Thanks for the technical help, sure solved my problem.

Regards

Darryl.

Mar 07, 2008 | Sony STR-DB930 Receiver

4 Answers

STR-DE945 stuck in auto protect mode?. I'm pretty sure it is the output capacitors but I do not Know where they are located to change them.


First of all my STR-DE845 started having the protector problem about 6 months ago and I bought this receiver back in 2001. This is what I found wrong with mine. After searching online I found a service manual for the receiver, this came in handy when diagnosing the problem. The first obvious thing was discoloration of the board around the IC 501, 601, and 701 Op-amps. When looking at the receiver from the front these are the three vertical NEC ICs to the right of the main amplifiers. Even with no load these amps get very warm. Sony failed to add any heat sink to these ICs so eventually they can de-solder themselves, specifically the 701 IC which is the one closest to the back of the unit. With mine I was able to slightly push the 701 more vertical, since it was leaning, and I believe it has helped it make a better contact. The protector circuit will kick in if it senses the Op-amps are shorted or not making contact. The best solution is to add some copper heat sink to these ICs, they already have screw slots for a heat sink. If they ever fail you will have to get new op-amps and re-solder them to the board. Hope this helps.

Jan 17, 2008 | Sony STR-DE845 Receiver

1 Answer

Protector mode SONY STR D1011S am fm receiver


I've had this happen, it's when you have speaker wires crossed.....

Dec 27, 2007 | Sony STR-DE945 Receiver

2 Answers

Protector mode..


Cambiale los IC de audio que esten dañados.

Oct 13, 2007 | Sony STR-DE825 Receiver

Not finding what you are looking for?
Sony STR-DE435 Receiver Logo

238 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5126 Answers

The Knight
The Knight

Level 3 Expert

74251 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...