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    Moderated By: Maxxwire
    Agoraquest Forum Index Amp/Receiver/Speakers/Connections/Cables
      
    PROTECTOR locked on STR-DE835!!! Dashboard
    Replies: 4 | Views: 6,394
    Last Reply: November 12, 2006, 8:34 pm

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    Maxxwire | jehill | mikeusmc | Merlu31 | taihlo |
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    Author PROTECTOR locked on STR-DE835!!!
    mikeusmc

    Rank: Sony Fan


    Joined: Jan 27, 2006
    Posts: 1
    From:

      Posted: 2006-01-27 20:11

    I see that this Protect issue is not new so I feel that I'm in good company! 

    I have about a 6 year old STR-DE835 that has always worked fine.  I went to turn the unit on and heard a slight "pop" and then the word "PROTECTOR" flashed - nothing new to this website I know.  BUT I've watched movies in ss, football games in Stadium mode, etc with no problem.  I take excellent care of my electronics and I never have (or need to have) the volume beyond 40% cap.  Wires and connections have not moved since I used the system the previous day.  Tv was on (semi low level), sound was coming out of the tv and I wanted to listen via the ss so I pressed the power button and then heard the pop.  I wanted to rule out wires and speakers just to be sure so I disconnected all wires and plugs from the back so only the power cord was plugged in.  Same message.  I turned the unit off, held the power buttom for 5 seconds or so and it went into "Demonstration Mode".  To turn demo mode off I pressed the power button again and the unit turned off.  Pressed it again and "Protector" flashed again.  I did shut the unit off for 24 hours as well to give it plenty of time to cool down (and me too). 

    I could find an auth Sony repair facility but what might it cost given that it seems it's the receiver itself and not my connections?  If I get it fixed could it happen again under the same circumstances with connections and volume level seeming not to be an issue?  Should I buy a new receiver which may have better "control" features?

    Superbowl is coming and what good is a Sony HDTV with no SS????

    Thanks in advance for any input!


       


    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14283
    From: Sewell, NJ

      Posted: 2006-01-28 11:20



    Welcome to Agoraquest!  Hearing a pop isn't a good sign.  Usually, that occurs when output transistors short out, but it could also be problem in the power supply.  What do you mean by, "BUT I've watched movies in ss, football games in Stadium mode, etc with no problem."?  That was before you received the PROTECTOR message, wasn't it?  If so, you need to get a repair estimate.  My guess is that it will be about $100.  Before you take it in to an authorized Sony servicenter (recommended), I would try unplugging the unit for a couple of minutes and see what happens after you plug it back in.

    -----------------
    -John

    Sony A/V System: KDL-55XBR8, BDP-S550 and AVD-LA2500PKG, consisting of AVD-C70ES Super Audio CD/DVD Receiver, 4 SS-LA500ED surround speakers, 1 SS-LAC505ED center channel speaker and 1 SA-WD200 Active Subwoofer


       
    Merlu31

    Rank: Sony Fan


    Joined: Apr 04, 2006
    Posts: 9
    From: Argentina

      Posted: 2006-04-04 20:50

    On my case, the only solution to this "PROTECT" Message on al the Sony Receivers are the SOLDER JOINS!!!!
    FORGET ABOUT SHORTCUTS ON THE SPEAKERS!!!
    I have the same problem twice on a Sony STR-DE 475 and on the two oportunities i find a LOT of WEAK SOLDER JOINS.
    So when i soldered again the unit works fine.
    The real mess here is FIND the weak soldered joins, because they appear ramdomly with the use... But beleive me that is the only or the most popular cause of the PROTECT MODE that all the sony receivers users are posting here!!
    This is a TIPICAL SONY RECEIVERS ERROR!!! and it cames from factory, because i search this forum,google and all the people that have sony recivers has the same problem.

    For Example, the last time i have the Protect mode ( With the receiver without the speaker connected on the back) i find that the IC701 (upc2581) have the legs 12-14 "on the air" or without making good contact ( because when i punch the receiver it works for a couple of minutes until "PROTECT" cames again).
    So i need to soldered it again to the board and also i have to "reforce" other weak solder joins that are closer to go weak.

    Good luck finding your weak soldered joins!!!!



       
    Maxxwire
    Moderator
    Premium Member

    Rank: Sony Adept


    Joined: Aug 29, 2002
    Posts: 26074
    From: Portland, Oregon - USA

      Posted: 2006-04-04 23:10

    For most end users it is advisable to let a trained service technician who has the proper diagnostic equipment do the dirty work of finding the bad solder joints and repairing them.

    ~Maxx~

    -----------------
    A Satisfied Sony Fan Since 1974!



    The OCCC Furu-Charged Sony DB 930


         
    taihlo

    Rank: Sony Fan


    Joined: Nov 12, 2006
    Posts: 1
    From: New York

      Posted: 2006-11-12 20:34

    I have a STR-DE835 that now does nothing but "Protector Mode" shortly after powering on. I tried it out after resetting and unplugging for 24 hours and it still pops up. I am comfortable opening it up and trying to find weak solder points, as I am pretty handy with a soldering iron, but I would really love to have some sort of schematic to know which pieces in there do what...

    I guess what I am really posting to ask is, "Is it worth it? or should I just go buy a newer more modern receiver?" Keep in mind this puppy has been working extremely well for me for that past 6 years...

    -Big Brother


         
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