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SONY STR KSL5 Protect Fault
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Davy
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PostPosted: Sat Dec 31, 2005 8:35 pm    Post subject: SONY STR KSL5 Protect Fault Reply with quote

I have a SONY STR KSL5 home cinema system which after about 5 mins shuts off with the word "PROTECT" in the displa. There are no shorts on the speaker cables. If I switch off then back on again 10 mins later it will work for about 5mins then go off again.
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PostPosted: Sat Jan 21, 2006 5:15 am    Post subject: Reply with quote

Today I noticed the same. But after few power-offs for now works perfectly. I you will know what is the reason, let me know.

Greetings from Poland
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rass
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PostPosted: Sun Aug 30, 2009 7:15 pm    Post subject: Reply with quote

turn it off, wait till the device cools down, plug in
it's worked in my case
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PostPosted: Sun May 02, 2010 10:41 am    Post subject: Reply with quote

I know the reason... In my case it was a bad soldering at the (5) Amplifier-IC below the aluminium heat-sink.
Only make the solderings new and it´ll work fine. I´ve done that at my KSL5 4 years ago and it still works without "PROTECT" Wink
Sorry - but my english isn´t very good! Hope, you understand what I mean...
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Bitza
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PostPosted: Thu Nov 11, 2010 6:30 pm    Post subject: Reply with quote

Anonymous wrote:
I know the reason... In my case it was a bad soldering at the (5) Amplifier-IC below the aluminium heat-sink.
Only make the solderings new and it´ll work fine. I´ve done that at my KSL5 4 years ago and it still works without "PROTECT" Wink
Sorry - but my english isn´t very good! Hope, you understand what I mean...


Yes, and ...that was it! I re-soldered the five IC's, and IT WORKS PERFECTLY!

Many thanks!
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PostPosted: Sun Jan 23, 2011 3:39 pm    Post subject: Reply with quote

Bitza wrote:
Anonymous wrote:
I know the reason... In my case it was a bad soldering at the (5) Amplifier-IC below the aluminium heat-sink.
Only make the solderings new and it´ll work fine. I´ve done that at my KSL5 4 years ago and it still works without "PROTECT" Wink
Sorry - but my english isn´t very good! Hope, you understand what I mean...


Yes, and ...that was it! I re-soldered the five IC's, and IT WORKS PERFECTLY!

Many thanks!



i have the same problem with this amplifier.
Can you help me to solve it? Wich is the Amplifier-IC to resolder? Can you tell me the procedure that you have used to repair it?
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MarcoIta
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PostPosted: Mon Jan 24, 2011 7:20 pm    Post subject: Reply with quote

Finally i have solved the problem!
The IC to solder is the 501 in my case. And now all works fine! For anyone that has this problem, check the welds under the plate for the five IC: 501 ic 601 ic701 ic751 etc....

YEAH MORE THANKSSSS!!!!!!!!!!!!!!!!!! Laughing Laughing Laughing Laughing Laughing
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PostPosted: Sat Mar 17, 2012 7:40 pm    Post subject: Reply with quote

Where does the black wire named LP801 connect to, thanks.
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Justmanuals



Joined: 21 Aug 2004
Posts: 1949

PostPosted: Sat Mar 17, 2012 7:52 pm    Post subject: Reply with quote

This Parts & Service Manual can now be purchased for $11.77 and downloaded immediately after payment from

http://www.justmanuals.com

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jts1957



Joined: 24 Nov 2008
Posts: 2472
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PostPosted: Sun Mar 18, 2012 9:48 am    Post subject: Reply with quote

$11.77 LESS. aka FREE:

https://manualsdl.com


http://elektrotanya.com/sony_str-ksl5.pdf/download.html
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