Question about Sony STR-DA90ESG

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Wiz sony I?m getting protector error on my Sony STR-DA90ESG

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  • wizlouis Apr 08, 2008

    Do you have a good repair shop in Brooklyn

  • Anonymous May 03, 2008

    I have the same model, same problem. I understand that one or more of the output transistors are shorted. I took it to a repair shop in Orlando. My problem is the repair tech said there are 16 (I think) output transistors and they are around $25 each his cost - he showed me in his parts book.

    He said no way to tell if one was bad, a few, or all, without expending the labor to lift their legs off the circuit board, and he was not going to order 16 replacements which would cost him $400.

    So I am stuck. I used to repair commercial power amplifiers so I could do the work myself but the way consumer units are built 0 including this one - its a real pain to get in there and isolate each output drive transistor to see how many are blown.

    I love this unit, despite its use of non-standard IR carrier frequencies, which is why no programmable or universal remotes can learn its codes. But s allows separate routing of audio and video, which is a rare feature in consumer units.

    Any advice is appreciated. It seems to be the COST of the replacement transistors and the labor to find out how many are even bad that is why this repair shop just handed me the unit back. Maybe another repair shop in the Orlando area ?

    Thanks !

  • bbittel May 05, 2008

    Trying this once again now that I have been able to establish a user account - sorry for repeat post but I REALLY want to get my DA90ESG working !! Any help is most appreciated -

    I have the same model, same problem. I understand that one or more of
    the output transistors are shorted. I took it to a repair shop in
    Orlando. My problem is the repair tech said there are 16 (I think)
    output transistors and they are around $25 each his cost - he showed me
    in his parts book.

    He said no way to tell if one was bad, a few, or all, without expending the labor to lift their legs off the circuit board, and he was not going to order 16 replacements which would cost him $400.

    So I am stuck. I used to repair commercial power amplifiers
    so I could do the work myself but the way consumer units are built 0
    including this one - its a real pain to get in there and isolate each
    output drive transistor to see how many are blown.

    I love this
    unit, despite its use of non-standard IR carrier frequencies, which is
    why no programmable or universal remotes can learn its codes. But s
    allows separate routing of audio and video, which is a rare feature in consumer units.

    Any
    advice is appreciated. It seems to be the COST of the replacement
    transistors and the labor to find out how many are even bad that is why
    this repair shop just handed me the unit back. Maybe another repair
    shop in the Orlando area ?

    Thanks !

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  • 4,234 Answers

The receiver has detected a problem in the final output stage and has shutdown to prevent further damage to either the amp or the speakers. The most common cause of this is shorted output transistors. Figure about $15-$30 for parts plus the local labor rate.
Dan

Posted on Apr 08, 2008

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Dec 28, 2008 | Sony STR-DA90ESG

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Dowload the manual here:
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Oct 23, 2008 | Sony STR-DA90ESG

1 Answer

I don't have the remote control


Hello,
You need remote control for STR-DA90ESG, its details are as follows...
1-475-133-11 RM-H501 REMOTE CONTROL
Currently In Stock: Yes Unit Price (in USD): $98.95

Its available at Sony Accessories, enter model number of unit in search box and see details.

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1 Answer

Protector mode


The problem is that the output transistor(s) are shorted causing the unit to shutdown in what is called "protect" mode. This is a common failue and should be easily repaired by a service shop for about $25-$40 in parts plus labor.
Dan

Mar 17, 2008 | Sony STR-DA90ESG

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